Bump github.com/containers/storage from 1.35.0 to 1.36.0

Bumps [github.com/containers/storage](https://github.com/containers/storage) from 1.35.0 to 1.36.0.
- [Release notes](https://github.com/containers/storage/releases)
- [Changelog](https://github.com/containers/storage/blob/main/docs/containers-storage-changes.md)
- [Commits](https://github.com/containers/storage/compare/v1.35.0...v1.36.0)

---
updated-dependencies:
- dependency-name: github.com/containers/storage
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
This commit is contained in:
dependabot[bot] 2021-09-13 08:31:20 +00:00 committed by GitHub
parent 47b808275d
commit a837fbe28b
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
58 changed files with 5256 additions and 4190 deletions

2
go.mod
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@ -6,7 +6,7 @@ require (
github.com/containers/common v0.43.2
github.com/containers/image/v5 v5.16.0
github.com/containers/ocicrypt v1.1.2
github.com/containers/storage v1.35.0
github.com/containers/storage v1.36.0
github.com/docker/docker v20.10.8+incompatible
github.com/dsnet/compress v0.0.2-0.20210315054119-f66993602bf5 // indirect
github.com/opencontainers/go-digest v1.0.0

16
go.sum
View File

@ -74,8 +74,9 @@ github.com/Microsoft/hcsshim v0.8.9/go.mod h1:5692vkUqntj1idxauYlpoINNKeqCiG6Sg3
github.com/Microsoft/hcsshim v0.8.14/go.mod h1:NtVKoYxQuTLx6gEq0L96c9Ju4JbRJ4nY2ow3VK6a9Lg=
github.com/Microsoft/hcsshim v0.8.15/go.mod h1:x38A4YbHbdxJtc0sF6oIz+RG0npwSCAvn69iY6URG00=
github.com/Microsoft/hcsshim v0.8.16/go.mod h1:o5/SZqmR7x9JNKsW3pu+nqHm0MF8vbA+VxGOoXdC600=
github.com/Microsoft/hcsshim v0.8.20 h1:ZTwcx3NS8n07kPf/JZ1qwU6vnjhVPMUWlXBF8r9UxrE=
github.com/Microsoft/hcsshim v0.8.20/go.mod h1:+w2gRZ5ReXQhFOrvSQeNfhrYB/dg3oDwTOcER2fw4I4=
github.com/Microsoft/hcsshim v0.8.22 h1:CulZ3GW8sNJExknToo+RWD+U+6ZM5kkNfuxywSDPd08=
github.com/Microsoft/hcsshim v0.8.22/go.mod h1:91uVCVzvX2QD16sMCenoxxXo6L1wJnLMX2PSufFMtF0=
github.com/Microsoft/hcsshim/test v0.0.0-20201218223536-d3e5debf77da/go.mod h1:5hlzMzRKMLyo42nCZ9oml8AdTlq/0cvIaBv6tK1RehU=
github.com/Microsoft/hcsshim/test v0.0.0-20210227013316-43a75bb4edd3/go.mod h1:mw7qgWloBUl75W/gVH3cQszUg1+gUITj7D6NY7ywVnY=
github.com/NYTimes/gziphandler v0.0.0-20170623195520-56545f4a5d46/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ=
@ -165,6 +166,7 @@ github.com/containerd/containerd v1.3.2/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMX
github.com/containerd/containerd v1.4.0-beta.2.0.20200729163537-40b22ef07410/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
github.com/containerd/containerd v1.4.1/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
github.com/containerd/containerd v1.4.3/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
github.com/containerd/containerd v1.4.9/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
github.com/containerd/containerd v1.5.0-beta.1/go.mod h1:5HfvG1V2FsKesEGQ17k5/T7V960Tmcumvqn8Mc+pCYQ=
github.com/containerd/containerd v1.5.0-beta.3/go.mod h1:/wr9AVtEM7x9c+n0+stptlo/uBBoBORwEx6ardVcmKU=
github.com/containerd/containerd v1.5.0-beta.4/go.mod h1:GmdgZd2zA2GYIBZ0w09ZvgqEq8EfBp/m3lcVZIvPHhI=
@ -198,6 +200,8 @@ github.com/containerd/imgcrypt v1.1.1/go.mod h1:xpLnwiQmEUJPvQoAapeb2SNCxz7Xr6PJ
github.com/containerd/nri v0.0.0-20201007170849-eb1350a75164/go.mod h1:+2wGSDGFYfE5+So4M5syatU0N0f0LbWpuqyMi4/BE8c=
github.com/containerd/nri v0.0.0-20210316161719-dbaa18c31c14/go.mod h1:lmxnXF6oMkbqs39FiCt1s0R2HSMhcLel9vNL3m4AaeY=
github.com/containerd/nri v0.1.0/go.mod h1:lmxnXF6oMkbqs39FiCt1s0R2HSMhcLel9vNL3m4AaeY=
github.com/containerd/stargz-snapshotter/estargz v0.8.0 h1:oA1wx8kTFfImfsT5bScbrZd8gK+WtQnn15q82Djvm0Y=
github.com/containerd/stargz-snapshotter/estargz v0.8.0/go.mod h1:mwIwuwb+D8FX2t45Trwi0hmWmZm5VW7zPP/rekwhWQU=
github.com/containerd/ttrpc v0.0.0-20190828154514-0e0f228740de/go.mod h1:PvCDdDGpgqzQIzDW1TphrGLssLDZp2GuS+X5DkEJB8o=
github.com/containerd/ttrpc v0.0.0-20190828172938-92c8520ef9f8/go.mod h1:PvCDdDGpgqzQIzDW1TphrGLssLDZp2GuS+X5DkEJB8o=
github.com/containerd/ttrpc v0.0.0-20191028202541-4f1b8fe65a5c/go.mod h1:LPm1u0xBw8r8NOKoOdNMeVHSawSsltak+Ihv+etqsE8=
@ -231,8 +235,9 @@ github.com/containers/ocicrypt v1.1.2 h1:Ez+GAMP/4GLix5Ywo/fL7O0nY771gsBIigiqUm1
github.com/containers/ocicrypt v1.1.2/go.mod h1:Dm55fwWm1YZAjYRaJ94z2mfZikIyIN4B0oB3dj3jFxY=
github.com/containers/storage v1.33.0/go.mod h1:FUZPF4nJijX8ixdhByZJXf02cvbyLi6dyDwXdIe8QVY=
github.com/containers/storage v1.34.0/go.mod h1:t6I+hTgPU0/tVxQ75vw406wDi/TXwYBqZp4QZV9N7b8=
github.com/containers/storage v1.35.0 h1:bNduWshYm1tq4IPJRC+zLs3VQ+1tbauU0CZBaqzPxw4=
github.com/containers/storage v1.35.0/go.mod h1:qzYhasQP2/V9D9XdO+vRwkHBhsBO0oznMLzzRDQ8s20=
github.com/containers/storage v1.36.0 h1:OelxllCW19tnNngYuZw2ty/zLabVMG5rSs3KSwO1Lzc=
github.com/containers/storage v1.36.0/go.mod h1:vbd3SKVQNHdmU5qQI6hTEcKPxnZkGqydG4f6uwrI5a8=
github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
github.com/coreos/go-iptables v0.4.5/go.mod h1:/mVI274lEDI2ns62jHCDnCyBF9Iwsmekav8Dbxlm1MU=
@ -384,7 +389,6 @@ github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaS
github.com/golang/protobuf v1.5.1/go.mod h1:DopwsBzvsk0Fs44TXzsVbJyPhcCPeIwnvohx4u74HPM=
github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
github.com/golang/snappy v0.0.3 h1:fHPg5GQYlCeLIPB9BZqMVR5nR9A+IM5zcgeTdjMYmLA=
github.com/golang/snappy v0.0.3/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
@ -503,8 +507,9 @@ github.com/klauspost/compress v1.11.3/go.mod h1:aoV0uJVorq1K+umq18yTdKaF57EivdYs
github.com/klauspost/compress v1.11.13/go.mod h1:aoV0uJVorq1K+umq18yTdKaF57EivdYsUV+/s2qKfXs=
github.com/klauspost/compress v1.13.1/go.mod h1:8dP1Hq4DHOhN9w426knH3Rhby4rFm6D8eO+e+Dq5Gzg=
github.com/klauspost/compress v1.13.3/go.mod h1:8dP1Hq4DHOhN9w426knH3Rhby4rFm6D8eO+e+Dq5Gzg=
github.com/klauspost/compress v1.13.4 h1:0zhec2I8zGnjWcKyLl6i3gPqKANCCn5e9xmviEEeX6s=
github.com/klauspost/compress v1.13.4/go.mod h1:8dP1Hq4DHOhN9w426knH3Rhby4rFm6D8eO+e+Dq5Gzg=
github.com/klauspost/compress v1.13.5 h1:9O69jUPDcsT9fEm74W92rZL9FQY7rCdaXVneq+yyzl4=
github.com/klauspost/compress v1.13.5/go.mod h1:/3/Vjq9QcHkK5uEr5lBEmyoZ1iFhe47etQ6QUkpK6sk=
github.com/klauspost/cpuid v1.2.0/go.mod h1:Pj4uuM528wm8OyEC2QMXAi2YiTZ96dNQPGgoMS4s3ek=
github.com/klauspost/pgzip v1.2.5 h1:qnWYvvKqedOF2ulHpMG72XQol4ILEJ8k2wwRl/Km8oE=
github.com/klauspost/pgzip v1.2.5/go.mod h1:Ch1tH69qFZu15pkjo5kYi6mth2Zzwzt50oCQKQE9RUs=
@ -636,8 +641,9 @@ github.com/opencontainers/selinux v1.6.0/go.mod h1:VVGKuOLlE7v4PJyT6h7mNWvq1rzqi
github.com/opencontainers/selinux v1.8.0/go.mod h1:RScLhm78qiWa2gbVCcGkC7tCGdgk3ogry1nUQF8Evvo=
github.com/opencontainers/selinux v1.8.2/go.mod h1:MUIHuUEvKB1wtJjQdOyYRgOnLD2xAPP8dBsCoU0KuF8=
github.com/opencontainers/selinux v1.8.3/go.mod h1:HTvjPFoGMbpQsG886e3lQwnsRWtE4TC1OF3OUvG9FAo=
github.com/opencontainers/selinux v1.8.4 h1:krlgQ6/j9CkCXT5oW0yVXdQFOME3NjKuuAZXuR6O7P4=
github.com/opencontainers/selinux v1.8.4/go.mod h1:HTvjPFoGMbpQsG886e3lQwnsRWtE4TC1OF3OUvG9FAo=
github.com/opencontainers/selinux v1.8.5 h1:OkT6bMHOQ1JQQO4ihjQ49sj0+wciDcjziSVTRn8VeTA=
github.com/opencontainers/selinux v1.8.5/go.mod h1:HTvjPFoGMbpQsG886e3lQwnsRWtE4TC1OF3OUvG9FAo=
github.com/ostreedev/ostree-go v0.0.0-20190702140239-759a8c1ac913 h1:TnbXhKzrTOyuvWrjI8W6pcoI9XPbLHFXCdN2dtUw7Rw=
github.com/ostreedev/ostree-go v0.0.0-20190702140239-759a8c1ac913/go.mod h1:J6OG6YJVEWopen4avK3VNQSnALmmjvniMmni/YFYAwc=
github.com/pascaldekloe/goe v0.0.0-20180627143212-57f6aae5913c/go.mod h1:lzWF7FIEvWOWxwDKqyGYQf6ZUaNfKdP144TG7ZOy1lc=

View File

@ -6,7 +6,9 @@ require (
github.com/Microsoft/go-winio v0.4.17
github.com/containerd/cgroups v1.0.1
github.com/containerd/console v1.0.2
github.com/containerd/containerd v1.5.1
github.com/containerd/containerd v1.4.9
github.com/containerd/continuity v0.1.0 // indirect
github.com/containerd/fifo v1.0.0 // indirect
github.com/containerd/go-runc v1.0.0
github.com/containerd/ttrpc v1.0.2
github.com/containerd/typeurl v1.0.2
@ -19,6 +21,7 @@ require (
golang.org/x/sync v0.0.0-20201207232520-09787c993a3a
golang.org/x/sys v0.0.0-20210324051608-47abb6519492
google.golang.org/grpc v1.33.2
gotest.tools/v3 v3.0.3 // indirect
)
replace (

View File

@ -1,779 +1,220 @@
bazil.org/fuse v0.0.0-20160811212531-371fbbdaa898/go.mod h1:Xbm+BRKSBEpa4q4hTSxohYNQpsxXPbPry4JJWOB3LB8=
cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
cloud.google.com/go v0.52.0/go.mod h1:pXajvRH/6o3+F9jDHZWQ5PbGhn+o8w9qiu/CffaVdO4=
cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M=
cloud.google.com/go v0.54.0/go.mod h1:1rq2OEkV3YMf6n/9ZvGWI3GWw0VoqH/1x2nd8Is/bPc=
cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvftPBK2Dvzc=
cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk=
cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
cloud.google.com/go/pubsub v1.2.0/go.mod h1:jhfEVHT8odbXTkndysNHCcx0awwzvfOlguIAii9o8iA=
cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos=
cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohlUTyfDhBk=
dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
github.com/Azure/azure-sdk-for-go v16.2.1+incompatible/go.mod h1:9XXNKU+eRnpl9moKnB4QOLf1HestfXbmab5FXxiDBjc=
github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78/go.mod h1:LmzpDX56iTiv29bbRTIsUNlaFfuhWRQBWjQdVyAevI8=
github.com/Azure/go-autorest v10.8.1+incompatible/go.mod h1:r+4oMnoxhatjLLJ6zxSWATqVooLgysK6ZNox3g/xq24=
github.com/Azure/go-autorest v14.2.0+incompatible/go.mod h1:r+4oMnoxhatjLLJ6zxSWATqVooLgysK6ZNox3g/xq24=
github.com/Azure/go-autorest/autorest v0.11.1/go.mod h1:JFgpikqFJ/MleTTxwepExTKnFUKKszPS8UavbQYUMuw=
github.com/Azure/go-autorest/autorest/adal v0.9.0/go.mod h1:/c022QCutn2P7uY+/oQWWNcK9YU+MH96NgK+jErpbcg=
github.com/Azure/go-autorest/autorest/adal v0.9.5/go.mod h1:B7KF7jKIeC9Mct5spmyCB/A8CG/sEz1vwIRGv/bbw7A=
github.com/Azure/go-autorest/autorest/date v0.3.0/go.mod h1:BI0uouVdmngYNUzGWeSYnokU+TrmwEsOqdt8Y6sso74=
github.com/Azure/go-autorest/autorest/mocks v0.4.0/go.mod h1:LTp+uSrOhSkaKrUy935gNZuuIPPVsHlr9DSOxSayd+k=
github.com/Azure/go-autorest/autorest/mocks v0.4.1/go.mod h1:LTp+uSrOhSkaKrUy935gNZuuIPPVsHlr9DSOxSayd+k=
github.com/Azure/go-autorest/logger v0.2.0/go.mod h1:T9E3cAhj2VqvPOtCYAvby9aBXkZmbF5NWuPV8+WeEW8=
github.com/Azure/go-autorest/tracing v0.6.0/go.mod h1:+vhtPC754Xsa23ID7GlGsrdKBpUA79WCAKPPZVC2DeU=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
github.com/Microsoft/go-winio v0.4.11/go.mod h1:VhR8bwka0BXejwEJY73c50VrPtXAaKcyvVC4A4RozmA=
github.com/Microsoft/go-winio v0.4.14/go.mod h1:qXqCSQ3Xa7+6tgxaGTIe4Kpcdsi+P8jBhyzoq1bpyYA=
github.com/Microsoft/go-winio v0.4.15-0.20190919025122-fc70bd9a86b5/go.mod h1:tTuCMEN+UleMWgg9dVx4Hu52b1bJo+59jBh3ajtinzw=
github.com/Microsoft/go-winio v0.4.16-0.20201130162521-d1ffc52c7331/go.mod h1:XB6nPKklQyQ7GC9LdcBEcBl8PF76WugXOPRXwdLnMv0=
github.com/Microsoft/go-winio v0.4.16/go.mod h1:XB6nPKklQyQ7GC9LdcBEcBl8PF76WugXOPRXwdLnMv0=
github.com/Microsoft/go-winio v0.4.17-0.20210211115548-6eac466e5fa3/go.mod h1:JPGBdM1cNvN/6ISo+n8V5iA4v8pBzdOpzfwIujj1a84=
github.com/Microsoft/go-winio v0.4.17-0.20210324224401-5516f17a5958/go.mod h1:JPGBdM1cNvN/6ISo+n8V5iA4v8pBzdOpzfwIujj1a84=
github.com/Microsoft/go-winio v0.4.17 h1:iT12IBVClFevaf8PuVyi3UmZOVh4OqnaLxDTW2O6j3w=
github.com/Microsoft/go-winio v0.4.17/go.mod h1:JPGBdM1cNvN/6ISo+n8V5iA4v8pBzdOpzfwIujj1a84=
github.com/Microsoft/hcsshim v0.8.6/go.mod h1:Op3hHsoHPAvb6lceZHDtd9OkTew38wNoXnJs8iY7rUg=
github.com/Microsoft/hcsshim v0.8.7-0.20190325164909-8abdbb8205e4/go.mod h1:Op3hHsoHPAvb6lceZHDtd9OkTew38wNoXnJs8iY7rUg=
github.com/Microsoft/hcsshim v0.8.7/go.mod h1:OHd7sQqRFrYd3RmSgbgji+ctCwkbq2wbEYNSzOYtcBQ=
github.com/Microsoft/hcsshim v0.8.9/go.mod h1:5692vkUqntj1idxauYlpoINNKeqCiG6Sg38RRsjT5y8=
github.com/Microsoft/hcsshim v0.8.14/go.mod h1:NtVKoYxQuTLx6gEq0L96c9Ju4JbRJ4nY2ow3VK6a9Lg=
github.com/Microsoft/hcsshim v0.8.15/go.mod h1:x38A4YbHbdxJtc0sF6oIz+RG0npwSCAvn69iY6URG00=
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github.com/nxadm/tail v1.4.4/go.mod h1:kenIhsEOeOJmVchQTgglprH7qJGnHDVpk1VPCcaMI8A=
github.com/oklog/ulid v1.3.1/go.mod h1:CirwcVhetQ6Lv90oh/F+FBtV6XMibvdAFo93nm5qn4U=
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github.com/urfave/cli v1.22.2 h1:gsqYFH8bb9ekPA12kRo0hfjngWQjkJPlN9R0N78BoUo=
github.com/urfave/cli v1.22.2/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtXRu0=
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github.com/willf/bitset v1.1.11/go.mod h1:83CECat5yLh5zVOf4P1ErAgKA5UDvKtgyUABdr3+MjI=
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github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
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golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
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golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f/go.mod h1:5qLYkcX4OjUUV8bRuDixDT3tpyyb+LUpUlRWLxfhWrs=
golang.org/x/lint v0.0.0-20200130185559-910be7a94367/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
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golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE=
golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o=
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golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY=
golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
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golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20181011144130-49bb7cea24b1/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20181220203305-927f97764cc3/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190501004415-9ce7a6920f09/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190503192946-f4e77d36d62c/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190522155817-f3200d17e092/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20190619014844-b5b0513f8c1b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20190724013045-ca1201d0de80/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20191004110552-13f9640d40b9/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20191209160850-c0dbc17a3553/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20200114155413-6afb5195e5aa/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20200202094626-16171245cfb2/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20200222125558-5a598a2470a0/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20200301022130-244492dfa37a/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20200324143707-d3edc9973b7e/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
golang.org/x/net v0.0.0-20201006153459-a7d1128ccaa0/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/net v0.0.0-20201021035429-f5854403a974 h1:IX6qOQeG5uLjB/hjjwjedwfjND0hgjPMMyO1RoIXQNI=
golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/net v0.0.0-20201224014010-6772e930b67b/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
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golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
golang.org/x/oauth2 v0.0.0-20191202225959-858c2ad4c8b6/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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golang.org/x/tools v0.0.0-20200304193943-95d2e580d8eb/go.mod h1:o4KQGtdN14AW+yjsvvwRTJJuXz8XRtIHtEnmAXLyFUw=
golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@ -781,105 +222,20 @@ golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8T
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
google.golang.org/api v0.0.0-20160322025152-9bf6e6e569ff/go.mod h1:4mhQ8q/RsB7i+udVvVy5NUi08OU8ZlA0gRVgrF7VFY0=
google.golang.org/api v0.4.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEtwE=
google.golang.org/api v0.7.0/go.mod h1:WtwebWUNSVBH/HAw79HIFXZNqEvBhG+Ra+ax0hx3E3M=
google.golang.org/api v0.8.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg=
google.golang.org/api v0.9.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg=
google.golang.org/api v0.13.0/go.mod h1:iLdEw5Ide6rF15KTC1Kkl0iskquN2gFfn9o9XIsbkAI=
google.golang.org/api v0.14.0/go.mod h1:iLdEw5Ide6rF15KTC1Kkl0iskquN2gFfn9o9XIsbkAI=
google.golang.org/api v0.15.0/go.mod h1:iLdEw5Ide6rF15KTC1Kkl0iskquN2gFfn9o9XIsbkAI=
google.golang.org/api v0.17.0/go.mod h1:BwFmGc8tA3vsd7r/7kR8DY7iEEGSU04BFxCo5jP/sfE=
google.golang.org/api v0.18.0/go.mod h1:BwFmGc8tA3vsd7r/7kR8DY7iEEGSU04BFxCo5jP/sfE=
google.golang.org/api v0.20.0/go.mod h1:BwFmGc8tA3vsd7r/7kR8DY7iEEGSU04BFxCo5jP/sfE=
google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/appengine v1.5.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/appengine v1.6.1/go.mod h1:i06prIuMbXzDqacNJfV5OdTW448YApPu5ww/cMBSeb0=
google.golang.org/appengine v1.6.5/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
google.golang.org/cloud v0.0.0-20151119220103-975617b05ea8/go.mod h1:0H1ncTHf11KCFhTc/+EFRbzSCOZx+VUbRMk55Yv5MYk=
google.golang.org/genproto v0.0.0-20200224152610-e50cd9704f63 h1:YzfoEYWbODU5Fbt37+h7X16BWQbad7Q4S6gclTKFXM8=
google.golang.org/genproto v0.0.0-20200224152610-e50cd9704f63/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
google.golang.org/grpc v1.27.1 h1:zvIju4sqAGvwKspUQOhwnpcqSbzi7/H6QomNNjTL4sk=
google.golang.org/grpc v1.27.1/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.25.0 h1:Ejskq+SyPohKW+1uil0JJMtmHCgJPJ/qWTxr8qp+R4c=
google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
gopkg.in/airbrake/gobrake.v2 v2.0.9/go.mod h1:/h5ZAUhDkGaJfjzjKLSjv6zCL6O0LLBxU4K+aSYdM/U=
gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20141024133853-64131543e789/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/cheggaaa/pb.v1 v1.0.25/go.mod h1:V/YB90LKu/1FcN3WVnfiiE5oMCibMjukxqG/qStrOgw=
gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2/go.mod h1:Xk6kEKp8OKb+X14hQBKWaSkCsqBpgog8nAV2xsGOxlo=
gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
gopkg.in/natefinch/lumberjack.v2 v2.0.0/go.mod h1:l0ndWWf7gzL7RNwBG7wST/UCcT4T24xpD6X8LsfU/+k=
gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
gopkg.in/square/go-jose.v2 v2.2.2/go.mod h1:M9dMgbHiYLoDGQrXy7OpJDJWiKiU//h+vD76mk0e1AI=
gopkg.in/square/go-jose.v2 v2.3.1/go.mod h1:M9dMgbHiYLoDGQrXy7OpJDJWiKiU//h+vD76mk0e1AI=
gopkg.in/square/go-jose.v2 v2.5.1/go.mod h1:M9dMgbHiYLoDGQrXy7OpJDJWiKiU//h+vD76mk0e1AI=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gotest.tools v2.2.0+incompatible h1:VsBPFP1AI068pPrMxtb/S8Zkgf9xEmTLJjfM+P5UIEo=
gotest.tools v2.2.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw=
gotest.tools/v3 v3.0.2/go.mod h1:3SzNCllyD9/Y+b5r9JIKQ474KzkZyqLqEfYqMsX94Bk=
gotest.tools/v3 v3.0.3 h1:4AuOwCGf4lLR9u3YOe2awrHygurzhO/HeQ6laiA6Sx0=
gotest.tools/v3 v3.0.3/go.mod h1:Z7Lb0S5l+klDB31fvDQX8ss/FlKDxtlFlw3Oa8Ymbl8=
honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
k8s.io/api v0.20.1/go.mod h1:KqwcCVogGxQY3nBlRpwt+wpAMF/KjaCc7RpywacvqUo=
k8s.io/api v0.20.4/go.mod h1:++lNL1AJMkDymriNniQsWRkMDzRaX2Y/POTUi8yvqYQ=
k8s.io/api v0.20.6/go.mod h1:X9e8Qag6JV/bL5G6bU8sdVRltWKmdHsFUGS3eVndqE8=
k8s.io/apimachinery v0.20.1/go.mod h1:WlLqWAHZGg07AeltaI0MV5uk1Omp8xaN0JGLY6gkRpU=
k8s.io/apimachinery v0.20.4/go.mod h1:WlLqWAHZGg07AeltaI0MV5uk1Omp8xaN0JGLY6gkRpU=
k8s.io/apimachinery v0.20.6/go.mod h1:ejZXtW1Ra6V1O5H8xPBGz+T3+4gfkTCeExAHKU57MAc=
k8s.io/apiserver v0.20.1/go.mod h1:ro5QHeQkgMS7ZGpvf4tSMx6bBOgPfE+f52KwvXfScaU=
k8s.io/apiserver v0.20.4/go.mod h1:Mc80thBKOyy7tbvFtB4kJv1kbdD0eIH8k8vianJcbFM=
k8s.io/apiserver v0.20.6/go.mod h1:QIJXNt6i6JB+0YQRNcS0hdRHJlMhflFmsBDeSgT1r8Q=
k8s.io/client-go v0.20.1/go.mod h1:/zcHdt1TeWSd5HoUe6elJmHSQ6uLLgp4bIJHVEuy+/Y=
k8s.io/client-go v0.20.4/go.mod h1:LiMv25ND1gLUdBeYxBIwKpkSC5IsozMMmOOeSJboP+k=
k8s.io/client-go v0.20.6/go.mod h1:nNQMnOvEUEsOzRRFIIkdmYOjAZrC8bgq0ExboWSU1I0=
k8s.io/component-base v0.20.1/go.mod h1:guxkoJnNoh8LNrbtiQOlyp2Y2XFCZQmrcg2n/DeYNLk=
k8s.io/component-base v0.20.4/go.mod h1:t4p9EdiagbVCJKrQ1RsA5/V4rFQNDfRlevJajlGwgjI=
k8s.io/component-base v0.20.6/go.mod h1:6f1MPBAeI+mvuts3sIdtpjljHWBQ2cIy38oBIWMYnrM=
k8s.io/cri-api v0.17.3/go.mod h1:X1sbHmuXhwaHs9xxYffLqJogVsnI+f6cPRcgPel7ywM=
k8s.io/cri-api v0.20.1/go.mod h1:2JRbKt+BFLTjtrILYVqQK5jqhI+XNdF6UiGMgczeBCI=
k8s.io/cri-api v0.20.4/go.mod h1:2JRbKt+BFLTjtrILYVqQK5jqhI+XNdF6UiGMgczeBCI=
k8s.io/cri-api v0.20.6/go.mod h1:ew44AjNXwyn1s0U4xCKGodU7J1HzBeZ1MpGrpa5r8Yc=
k8s.io/gengo v0.0.0-20200413195148-3a45101e95ac/go.mod h1:ezvh/TsK7cY6rbqRK0oQQ8IAqLxYwwyPxAX1Pzy0ii0=
k8s.io/klog/v2 v2.0.0/go.mod h1:PBfzABfn139FHAV07az/IF9Wp1bkk3vpT2XSJ76fSDE=
k8s.io/klog/v2 v2.4.0/go.mod h1:Od+F08eJP+W3HUb4pSrPpgp9DGU4GzlpG/TmITuYh/Y=
k8s.io/kube-openapi v0.0.0-20201113171705-d219536bb9fd/go.mod h1:WOJ3KddDSol4tAGcJo0Tvi+dK12EcqSLqcWsryKMpfM=
k8s.io/kubernetes v1.13.0/go.mod h1:ocZa8+6APFNC2tX1DZASIbocyYT5jHzqFVsY5aoB7Jk=
k8s.io/utils v0.0.0-20201110183641-67b214c5f920/go.mod h1:jPW/WVKK9YHAvNhRxK0md/EJ228hCsBRufyofKtW8HA=
rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.14/go.mod h1:LEScyzhFmoF5pso/YSeBstl57mOzx9xlU9n85RGrDQg=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.15/go.mod h1:LEScyzhFmoF5pso/YSeBstl57mOzx9xlU9n85RGrDQg=
sigs.k8s.io/structured-merge-diff/v4 v4.0.2/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=
sigs.k8s.io/structured-merge-diff/v4 v4.0.3/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=
sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc=

View File

@ -7,6 +7,9 @@ import (
// HNSEndpoint represents a network endpoint in HNS
type HNSEndpoint = hns.HNSEndpoint
// HNSEndpointStats represent the stats for an networkendpoint in HNS
type HNSEndpointStats = hns.EndpointStats
// Namespace represents a Compartment.
type Namespace = hns.Namespace
@ -108,3 +111,8 @@ func GetHNSEndpointByID(endpointID string) (*HNSEndpoint, error) {
func GetHNSEndpointByName(endpointName string) (*HNSEndpoint, error) {
return hns.GetHNSEndpointByName(endpointName)
}
// GetHNSEndpointStats gets the endpoint stats by ID
func GetHNSEndpointStats(endpointName string) (*HNSEndpointStats, error) {
return hns.GetHNSEndpointStats(endpointName)
}

View File

@ -30,6 +30,7 @@ type HNSEndpoint struct {
EnableLowMetric bool `json:",omitempty"`
Namespace *Namespace `json:",omitempty"`
EncapOverhead uint16 `json:",omitempty"`
SharedContainers []string `json:",omitempty"`
}
//SystemType represents the type of the system on which actions are done
@ -57,6 +58,18 @@ type EndpointResquestResponse struct {
Error string
}
// EndpointStats is the object that has stats for a given endpoint
type EndpointStats struct {
BytesReceived uint64 `json:"BytesReceived"`
BytesSent uint64 `json:"BytesSent"`
DroppedPacketsIncoming uint64 `json:"DroppedPacketsIncoming"`
DroppedPacketsOutgoing uint64 `json:"DroppedPacketsOutgoing"`
EndpointID string `json:"EndpointId"`
InstanceID string `json:"InstanceId"`
PacketsReceived uint64 `json:"PacketsReceived"`
PacketsSent uint64 `json:"PacketsSent"`
}
// HNSEndpointRequest makes a HNS call to modify/query a network endpoint
func HNSEndpointRequest(method, path, request string) (*HNSEndpoint, error) {
endpoint := &HNSEndpoint{}
@ -79,11 +92,27 @@ func HNSListEndpointRequest() ([]HNSEndpoint, error) {
return endpoint, nil
}
// hnsEndpointStatsRequest makes a HNS call to query the stats for a given endpoint ID
func hnsEndpointStatsRequest(id string) (*EndpointStats, error) {
var stats EndpointStats
err := hnsCall("GET", "/endpointstats/"+id, "", &stats)
if err != nil {
return nil, err
}
return &stats, nil
}
// GetHNSEndpointByID get the Endpoint by ID
func GetHNSEndpointByID(endpointID string) (*HNSEndpoint, error) {
return HNSEndpointRequest("GET", endpointID, "")
}
// GetHNSEndpointStats get the stats for a n Endpoint by ID
func GetHNSEndpointStats(endpointID string) (*EndpointStats, error) {
return hnsEndpointStatsRequest(endpointID)
}
// GetHNSEndpointByName gets the endpoint filtered by Name
func GetHNSEndpointByName(endpointName string) (*HNSEndpoint, error) {
hnsResponse, err := HNSListEndpointRequest()

View File

@ -0,0 +1,202 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
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APPENDIX: How to apply the Apache License to your work.
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View File

@ -0,0 +1,628 @@
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/*
Copyright 2019 The Go Authors. All rights reserved.
Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file.
*/
package estargz
import (
"archive/tar"
"bytes"
"compress/gzip"
"fmt"
"io"
"io/ioutil"
"os"
"path"
"runtime"
"strings"
"sync"
"github.com/containerd/stargz-snapshotter/estargz/errorutil"
"github.com/klauspost/compress/zstd"
digest "github.com/opencontainers/go-digest"
"github.com/pkg/errors"
"golang.org/x/sync/errgroup"
)
type options struct {
chunkSize int
compressionLevel int
prioritizedFiles []string
missedPrioritizedFiles *[]string
compression Compression
}
type Option func(o *options) error
// WithChunkSize option specifies the chunk size of eStargz blob to build.
func WithChunkSize(chunkSize int) Option {
return func(o *options) error {
o.chunkSize = chunkSize
return nil
}
}
// WithCompressionLevel option specifies the gzip compression level.
// The default is gzip.BestCompression.
// See also: https://godoc.org/compress/gzip#pkg-constants
func WithCompressionLevel(level int) Option {
return func(o *options) error {
o.compressionLevel = level
return nil
}
}
// WithPrioritizedFiles option specifies the list of prioritized files.
// These files must be complete paths that are absolute or relative to "/"
// For example, all of "foo/bar", "/foo/bar", "./foo/bar" and "../foo/bar"
// are treated as "/foo/bar".
func WithPrioritizedFiles(files []string) Option {
return func(o *options) error {
o.prioritizedFiles = files
return nil
}
}
// WithAllowPrioritizeNotFound makes Build continue the execution even if some
// of prioritized files specified by WithPrioritizedFiles option aren't found
// in the input tar. Instead, this records all missed file names to the passed
// slice.
func WithAllowPrioritizeNotFound(missedFiles *[]string) Option {
return func(o *options) error {
if missedFiles == nil {
return fmt.Errorf("WithAllowPrioritizeNotFound: slice must be passed")
}
o.missedPrioritizedFiles = missedFiles
return nil
}
}
// WithCompression specifies compression algorithm to be used.
// Default is gzip.
func WithCompression(compression Compression) Option {
return func(o *options) error {
o.compression = compression
return nil
}
}
// Blob is an eStargz blob.
type Blob struct {
io.ReadCloser
diffID digest.Digester
tocDigest digest.Digest
}
// DiffID returns the digest of uncompressed blob.
// It is only valid to call DiffID after Close.
func (b *Blob) DiffID() digest.Digest {
return b.diffID.Digest()
}
// TOCDigest returns the digest of uncompressed TOC JSON.
func (b *Blob) TOCDigest() digest.Digest {
return b.tocDigest
}
// Build builds an eStargz blob which is an extended version of stargz, from a blob (gzip, zstd
// or plain tar) passed through the argument. If there are some prioritized files are listed in
// the option, these files are grouped as "prioritized" and can be used for runtime optimization
// (e.g. prefetch). This function builds a blob in parallel, with dividing that blob into several
// (at least the number of runtime.GOMAXPROCS(0)) sub-blobs.
func Build(tarBlob *io.SectionReader, opt ...Option) (_ *Blob, rErr error) {
var opts options
opts.compressionLevel = gzip.BestCompression // BestCompression by default
for _, o := range opt {
if err := o(&opts); err != nil {
return nil, err
}
}
if opts.compression == nil {
opts.compression = newGzipCompressionWithLevel(opts.compressionLevel)
}
layerFiles := newTempFiles()
defer func() {
if rErr != nil {
if err := layerFiles.CleanupAll(); err != nil {
rErr = errors.Wrapf(rErr, "failed to cleanup tmp files: %v", err)
}
}
}()
tarBlob, err := decompressBlob(tarBlob, layerFiles)
if err != nil {
return nil, err
}
entries, err := sortEntries(tarBlob, opts.prioritizedFiles, opts.missedPrioritizedFiles)
if err != nil {
return nil, err
}
tarParts := divideEntries(entries, runtime.GOMAXPROCS(0))
writers := make([]*Writer, len(tarParts))
payloads := make([]*os.File, len(tarParts))
var mu sync.Mutex
var eg errgroup.Group
for i, parts := range tarParts {
i, parts := i, parts
// builds verifiable stargz sub-blobs
eg.Go(func() error {
esgzFile, err := layerFiles.TempFile("", "esgzdata")
if err != nil {
return err
}
sw := NewWriterWithCompressor(esgzFile, opts.compression)
sw.ChunkSize = opts.chunkSize
if err := sw.AppendTar(readerFromEntries(parts...)); err != nil {
return err
}
mu.Lock()
writers[i] = sw
payloads[i] = esgzFile
mu.Unlock()
return nil
})
}
if err := eg.Wait(); err != nil {
rErr = err
return nil, err
}
tocAndFooter, tocDgst, err := closeWithCombine(opts.compressionLevel, writers...)
if err != nil {
rErr = err
return nil, err
}
var rs []io.Reader
for _, p := range payloads {
fs, err := fileSectionReader(p)
if err != nil {
return nil, err
}
rs = append(rs, fs)
}
diffID := digest.Canonical.Digester()
pr, pw := io.Pipe()
go func() {
r, err := opts.compression.Reader(io.TeeReader(io.MultiReader(append(rs, tocAndFooter)...), pw))
if err != nil {
pw.CloseWithError(err)
return
}
defer r.Close()
if _, err := io.Copy(diffID.Hash(), r); err != nil {
pw.CloseWithError(err)
return
}
pw.Close()
}()
return &Blob{
ReadCloser: readCloser{
Reader: pr,
closeFunc: layerFiles.CleanupAll,
},
tocDigest: tocDgst,
diffID: diffID,
}, nil
}
// closeWithCombine takes unclosed Writers and close them. This also returns the
// toc that combined all Writers into.
// Writers doesn't write TOC and footer to the underlying writers so they can be
// combined into a single eStargz and tocAndFooter returned by this function can
// be appended at the tail of that combined blob.
func closeWithCombine(compressionLevel int, ws ...*Writer) (tocAndFooterR io.Reader, tocDgst digest.Digest, err error) {
if len(ws) == 0 {
return nil, "", fmt.Errorf("at least one writer must be passed")
}
for _, w := range ws {
if w.closed {
return nil, "", fmt.Errorf("writer must be unclosed")
}
defer func(w *Writer) { w.closed = true }(w)
if err := w.closeGz(); err != nil {
return nil, "", err
}
if err := w.bw.Flush(); err != nil {
return nil, "", err
}
}
var (
mtoc = new(JTOC)
currentOffset int64
)
mtoc.Version = ws[0].toc.Version
for _, w := range ws {
for _, e := range w.toc.Entries {
// Recalculate Offset of non-empty files/chunks
if (e.Type == "reg" && e.Size > 0) || e.Type == "chunk" {
e.Offset += currentOffset
}
mtoc.Entries = append(mtoc.Entries, e)
}
if w.toc.Version > mtoc.Version {
mtoc.Version = w.toc.Version
}
currentOffset += w.cw.n
}
return tocAndFooter(ws[0].compressor, mtoc, currentOffset)
}
func tocAndFooter(compressor Compressor, toc *JTOC, offset int64) (io.Reader, digest.Digest, error) {
buf := new(bytes.Buffer)
tocDigest, err := compressor.WriteTOCAndFooter(buf, offset, toc, nil)
if err != nil {
return nil, "", err
}
return buf, tocDigest, nil
}
// divideEntries divides passed entries to the parts at least the number specified by the
// argument.
func divideEntries(entries []*entry, minPartsNum int) (set [][]*entry) {
var estimatedSize int64
for _, e := range entries {
estimatedSize += e.header.Size
}
unitSize := estimatedSize / int64(minPartsNum)
var (
nextEnd = unitSize
offset int64
)
set = append(set, []*entry{})
for _, e := range entries {
set[len(set)-1] = append(set[len(set)-1], e)
offset += e.header.Size
if offset > nextEnd {
set = append(set, []*entry{})
nextEnd += unitSize
}
}
return
}
var errNotFound = errors.New("not found")
// sortEntries reads the specified tar blob and returns a list of tar entries.
// If some of prioritized files are specified, the list starts from these
// files with keeping the order specified by the argument.
func sortEntries(in io.ReaderAt, prioritized []string, missedPrioritized *[]string) ([]*entry, error) {
// Import tar file.
intar, err := importTar(in)
if err != nil {
return nil, errors.Wrap(err, "failed to sort")
}
// Sort the tar file respecting to the prioritized files list.
sorted := &tarFile{}
for _, l := range prioritized {
if err := moveRec(l, intar, sorted); err != nil {
if errors.Is(err, errNotFound) && missedPrioritized != nil {
*missedPrioritized = append(*missedPrioritized, l)
continue // allow not found
}
return nil, errors.Wrap(err, "failed to sort tar entries")
}
}
if len(prioritized) == 0 {
sorted.add(&entry{
header: &tar.Header{
Name: NoPrefetchLandmark,
Typeflag: tar.TypeReg,
Size: int64(len([]byte{landmarkContents})),
},
payload: bytes.NewReader([]byte{landmarkContents}),
})
} else {
sorted.add(&entry{
header: &tar.Header{
Name: PrefetchLandmark,
Typeflag: tar.TypeReg,
Size: int64(len([]byte{landmarkContents})),
},
payload: bytes.NewReader([]byte{landmarkContents}),
})
}
// Dump all entry and concatinate them.
return append(sorted.dump(), intar.dump()...), nil
}
// readerFromEntries returns a reader of tar archive that contains entries passed
// through the arguments.
func readerFromEntries(entries ...*entry) io.Reader {
pr, pw := io.Pipe()
go func() {
tw := tar.NewWriter(pw)
defer tw.Close()
for _, entry := range entries {
if err := tw.WriteHeader(entry.header); err != nil {
pw.CloseWithError(fmt.Errorf("Failed to write tar header: %v", err))
return
}
if _, err := io.Copy(tw, entry.payload); err != nil {
pw.CloseWithError(fmt.Errorf("Failed to write tar payload: %v", err))
return
}
}
pw.Close()
}()
return pr
}
func importTar(in io.ReaderAt) (*tarFile, error) {
tf := &tarFile{}
pw, err := newCountReader(in)
if err != nil {
return nil, errors.Wrap(err, "failed to make position watcher")
}
tr := tar.NewReader(pw)
// Walk through all nodes.
for {
// Fetch and parse next header.
h, err := tr.Next()
if err != nil {
if err == io.EOF {
break
} else {
return nil, errors.Wrap(err, "failed to parse tar file")
}
}
switch cleanEntryName(h.Name) {
case PrefetchLandmark, NoPrefetchLandmark:
// Ignore existing landmark
continue
}
// Add entry. If it already exists, replace it.
if _, ok := tf.get(h.Name); ok {
tf.remove(h.Name)
}
tf.add(&entry{
header: h,
payload: io.NewSectionReader(in, pw.currentPos(), h.Size),
})
}
return tf, nil
}
func moveRec(name string, in *tarFile, out *tarFile) error {
name = cleanEntryName(name)
if name == "" { // root directory. stop recursion.
if e, ok := in.get(name); ok {
// entry of the root directory exists. we should move it as well.
// this case will occur if tar entries are prefixed with "./", "/", etc.
out.add(e)
in.remove(name)
}
return nil
}
_, okIn := in.get(name)
_, okOut := out.get(name)
if !okIn && !okOut {
return errors.Wrapf(errNotFound, "file: %q", name)
}
parent, _ := path.Split(strings.TrimSuffix(name, "/"))
if err := moveRec(parent, in, out); err != nil {
return err
}
if e, ok := in.get(name); ok && e.header.Typeflag == tar.TypeLink {
if err := moveRec(e.header.Linkname, in, out); err != nil {
return err
}
}
if e, ok := in.get(name); ok {
out.add(e)
in.remove(name)
}
return nil
}
type entry struct {
header *tar.Header
payload io.ReadSeeker
}
type tarFile struct {
index map[string]*entry
stream []*entry
}
func (f *tarFile) add(e *entry) {
if f.index == nil {
f.index = make(map[string]*entry)
}
f.index[cleanEntryName(e.header.Name)] = e
f.stream = append(f.stream, e)
}
func (f *tarFile) remove(name string) {
name = cleanEntryName(name)
if f.index != nil {
delete(f.index, name)
}
var filtered []*entry
for _, e := range f.stream {
if cleanEntryName(e.header.Name) == name {
continue
}
filtered = append(filtered, e)
}
f.stream = filtered
}
func (f *tarFile) get(name string) (e *entry, ok bool) {
if f.index == nil {
return nil, false
}
e, ok = f.index[cleanEntryName(name)]
return
}
func (f *tarFile) dump() []*entry {
return f.stream
}
type readCloser struct {
io.Reader
closeFunc func() error
}
func (rc readCloser) Close() error {
return rc.closeFunc()
}
func fileSectionReader(file *os.File) (*io.SectionReader, error) {
info, err := file.Stat()
if err != nil {
return nil, err
}
return io.NewSectionReader(file, 0, info.Size()), nil
}
func newTempFiles() *tempFiles {
return &tempFiles{}
}
type tempFiles struct {
files []*os.File
filesMu sync.Mutex
}
func (tf *tempFiles) TempFile(dir, pattern string) (*os.File, error) {
f, err := ioutil.TempFile(dir, pattern)
if err != nil {
return nil, err
}
tf.filesMu.Lock()
tf.files = append(tf.files, f)
tf.filesMu.Unlock()
return f, nil
}
func (tf *tempFiles) CleanupAll() error {
tf.filesMu.Lock()
defer tf.filesMu.Unlock()
var allErr []error
for _, f := range tf.files {
if err := f.Close(); err != nil {
allErr = append(allErr, err)
}
if err := os.Remove(f.Name()); err != nil {
allErr = append(allErr, err)
}
}
tf.files = nil
return errorutil.Aggregate(allErr)
}
func newCountReader(r io.ReaderAt) (*countReader, error) {
pos := int64(0)
return &countReader{r: r, cPos: &pos}, nil
}
type countReader struct {
r io.ReaderAt
cPos *int64
mu sync.Mutex
}
func (cr *countReader) Read(p []byte) (int, error) {
cr.mu.Lock()
defer cr.mu.Unlock()
n, err := cr.r.ReadAt(p, *cr.cPos)
if err == nil {
*cr.cPos += int64(n)
}
return n, err
}
func (cr *countReader) Seek(offset int64, whence int) (int64, error) {
cr.mu.Lock()
defer cr.mu.Unlock()
switch whence {
default:
return 0, fmt.Errorf("Unknown whence: %v", whence)
case io.SeekStart:
case io.SeekCurrent:
offset += *cr.cPos
case io.SeekEnd:
return 0, fmt.Errorf("Unsupported whence: %v", whence)
}
if offset < 0 {
return 0, fmt.Errorf("invalid offset")
}
*cr.cPos = offset
return offset, nil
}
func (cr *countReader) currentPos() int64 {
cr.mu.Lock()
defer cr.mu.Unlock()
return *cr.cPos
}
func decompressBlob(org *io.SectionReader, tmp *tempFiles) (*io.SectionReader, error) {
if org.Size() < 4 {
return org, nil
}
src := make([]byte, 4)
if _, err := org.Read(src); err != nil && err != io.EOF {
return nil, err
}
var dR io.Reader
if bytes.Equal([]byte{0x1F, 0x8B, 0x08}, src[:3]) {
// gzip
dgR, err := gzip.NewReader(io.NewSectionReader(org, 0, org.Size()))
if err != nil {
return nil, err
}
defer dgR.Close()
dR = io.Reader(dgR)
} else if bytes.Equal([]byte{0x28, 0xb5, 0x2f, 0xfd}, src[:4]) {
// zstd
dzR, err := zstd.NewReader(io.NewSectionReader(org, 0, org.Size()))
if err != nil {
return nil, err
}
defer dzR.Close()
dR = io.Reader(dzR)
} else {
// uncompressed
return io.NewSectionReader(org, 0, org.Size()), nil
}
b, err := tmp.TempFile("", "uncompresseddata")
if err != nil {
return nil, err
}
if _, err := io.Copy(b, dR); err != nil {
return nil, err
}
return fileSectionReader(b)
}

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@ -0,0 +1,40 @@
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package errorutil
import (
"errors"
"fmt"
"strings"
)
// Aggregate combines a list of errors into a single new error.
func Aggregate(errs []error) error {
switch len(errs) {
case 0:
return nil
case 1:
return errs[0]
default:
points := make([]string, len(errs)+1)
points[0] = fmt.Sprintf("%d error(s) occurred:", len(errs))
for i, err := range errs {
points[i+1] = fmt.Sprintf("* %s", err)
}
return errors.New(strings.Join(points, "\n\t"))
}
}

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@ -0,0 +1,933 @@
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/*
Copyright 2019 The Go Authors. All rights reserved.
Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file.
*/
package estargz
import (
"archive/tar"
"bufio"
"bytes"
"compress/gzip"
"crypto/sha256"
"fmt"
"hash"
"io"
"io/ioutil"
"os"
"path"
"sort"
"strings"
"sync"
"time"
"github.com/containerd/stargz-snapshotter/estargz/errorutil"
digest "github.com/opencontainers/go-digest"
"github.com/pkg/errors"
)
// A Reader permits random access reads from a stargz file.
type Reader struct {
sr *io.SectionReader
toc *JTOC
tocDigest digest.Digest
// m stores all non-chunk entries, keyed by name.
m map[string]*TOCEntry
// chunks stores all TOCEntry values for regular files that
// are split up. For a file with a single chunk, it's only
// stored in m.
chunks map[string][]*TOCEntry
decompressor Decompressor
}
type openOpts struct {
tocOffset int64
decompressors []Decompressor
telemetry *Telemetry
}
// OpenOption is an option used during opening the layer
type OpenOption func(o *openOpts) error
// WithTOCOffset option specifies the offset of TOC
func WithTOCOffset(tocOffset int64) OpenOption {
return func(o *openOpts) error {
o.tocOffset = tocOffset
return nil
}
}
// WithDecompressors option specifies decompressors to use.
// Default is gzip-based decompressor.
func WithDecompressors(decompressors ...Decompressor) OpenOption {
return func(o *openOpts) error {
o.decompressors = decompressors
return nil
}
}
// WithTelemetry option specifies the telemetry hooks
func WithTelemetry(telemetry *Telemetry) OpenOption {
return func(o *openOpts) error {
o.telemetry = telemetry
return nil
}
}
// A func which takes start time and records the diff
type MeasureLatencyHook func(time.Time)
// A struct which defines telemetry hooks. By implementing these hooks you should be able to record
// the latency metrics of the respective steps of estargz open operation. To be used with estargz.OpenWithTelemetry(...)
type Telemetry struct {
GetFooterLatency MeasureLatencyHook // measure time to get stargz footer (in milliseconds)
GetTocLatency MeasureLatencyHook // measure time to GET TOC JSON (in milliseconds)
DeserializeTocLatency MeasureLatencyHook // measure time to deserialize TOC JSON (in milliseconds)
}
// Open opens a stargz file for reading.
// The behaviour is configurable using options.
//
// Note that each entry name is normalized as the path that is relative to root.
func Open(sr *io.SectionReader, opt ...OpenOption) (*Reader, error) {
var opts openOpts
for _, o := range opt {
if err := o(&opts); err != nil {
return nil, err
}
}
gzipCompressors := []Decompressor{new(GzipDecompressor), new(legacyGzipDecompressor)}
decompressors := append(gzipCompressors, opts.decompressors...)
// Determine the size to fetch. Try to fetch as many bytes as possible.
fetchSize := maxFooterSize(sr.Size(), decompressors...)
if maybeTocOffset := opts.tocOffset; maybeTocOffset > fetchSize {
if maybeTocOffset > sr.Size() {
return nil, fmt.Errorf("blob size %d is smaller than the toc offset", sr.Size())
}
fetchSize = sr.Size() - maybeTocOffset
}
start := time.Now() // before getting layer footer
footer := make([]byte, fetchSize)
if _, err := sr.ReadAt(footer, sr.Size()-fetchSize); err != nil {
return nil, fmt.Errorf("error reading footer: %v", err)
}
if opts.telemetry != nil && opts.telemetry.GetFooterLatency != nil {
opts.telemetry.GetFooterLatency(start)
}
var allErr []error
var found bool
var r *Reader
for _, d := range decompressors {
fSize := d.FooterSize()
fOffset := positive(int64(len(footer)) - fSize)
maybeTocBytes := footer[:fOffset]
tocOffset, tocSize, err := d.ParseFooter(footer[fOffset:])
if err != nil {
allErr = append(allErr, err)
continue
}
if tocSize <= 0 {
tocSize = sr.Size() - tocOffset - fSize
}
if tocSize < int64(len(maybeTocBytes)) {
maybeTocBytes = maybeTocBytes[:tocSize]
}
r, err = parseTOC(d, sr, tocOffset, tocSize, maybeTocBytes, opts)
if err == nil {
found = true
break
}
allErr = append(allErr, err)
}
if !found {
return nil, errorutil.Aggregate(allErr)
}
if err := r.initFields(); err != nil {
return nil, fmt.Errorf("failed to initialize fields of entries: %v", err)
}
return r, nil
}
// OpenFooter extracts and parses footer from the given blob.
// only supports gzip-based eStargz.
func OpenFooter(sr *io.SectionReader) (tocOffset int64, footerSize int64, rErr error) {
if sr.Size() < FooterSize && sr.Size() < legacyFooterSize {
return 0, 0, fmt.Errorf("blob size %d is smaller than the footer size", sr.Size())
}
var footer [FooterSize]byte
if _, err := sr.ReadAt(footer[:], sr.Size()-FooterSize); err != nil {
return 0, 0, fmt.Errorf("error reading footer: %v", err)
}
var allErr []error
for _, d := range []Decompressor{new(GzipDecompressor), new(legacyGzipDecompressor)} {
fSize := d.FooterSize()
fOffset := positive(int64(len(footer)) - fSize)
tocOffset, _, err := d.ParseFooter(footer[fOffset:])
if err == nil {
return tocOffset, fSize, err
}
allErr = append(allErr, err)
}
return 0, 0, errorutil.Aggregate(allErr)
}
// initFields populates the Reader from r.toc after decoding it from
// JSON.
//
// Unexported fields are populated and TOCEntry fields that were
// implicit in the JSON are populated.
func (r *Reader) initFields() error {
r.m = make(map[string]*TOCEntry, len(r.toc.Entries))
r.chunks = make(map[string][]*TOCEntry)
var lastPath string
uname := map[int]string{}
gname := map[int]string{}
var lastRegEnt *TOCEntry
for _, ent := range r.toc.Entries {
ent.Name = cleanEntryName(ent.Name)
if ent.Type == "reg" {
lastRegEnt = ent
}
if ent.Type == "chunk" {
ent.Name = lastPath
r.chunks[ent.Name] = append(r.chunks[ent.Name], ent)
if ent.ChunkSize == 0 && lastRegEnt != nil {
ent.ChunkSize = lastRegEnt.Size - ent.ChunkOffset
}
} else {
lastPath = ent.Name
if ent.Uname != "" {
uname[ent.UID] = ent.Uname
} else {
ent.Uname = uname[ent.UID]
}
if ent.Gname != "" {
gname[ent.GID] = ent.Gname
} else {
ent.Gname = uname[ent.GID]
}
ent.modTime, _ = time.Parse(time.RFC3339, ent.ModTime3339)
if ent.Type == "dir" {
ent.NumLink++ // Parent dir links to this directory
}
r.m[ent.Name] = ent
}
if ent.Type == "reg" && ent.ChunkSize > 0 && ent.ChunkSize < ent.Size {
r.chunks[ent.Name] = make([]*TOCEntry, 0, ent.Size/ent.ChunkSize+1)
r.chunks[ent.Name] = append(r.chunks[ent.Name], ent)
}
if ent.ChunkSize == 0 && ent.Size != 0 {
ent.ChunkSize = ent.Size
}
}
// Populate children, add implicit directories:
for _, ent := range r.toc.Entries {
if ent.Type == "chunk" {
continue
}
// add "foo/":
// add "foo" child to "" (creating "" if necessary)
//
// add "foo/bar/":
// add "bar" child to "foo" (creating "foo" if necessary)
//
// add "foo/bar.txt":
// add "bar.txt" child to "foo" (creating "foo" if necessary)
//
// add "a/b/c/d/e/f.txt":
// create "a/b/c/d/e" node
// add "f.txt" child to "e"
name := ent.Name
pdirName := parentDir(name)
if name == pdirName {
// This entry and its parent are the same.
// Ignore this for avoiding infinite loop of the reference.
// The example case where this can occur is when tar contains the root
// directory itself (e.g. "./", "/").
continue
}
pdir := r.getOrCreateDir(pdirName)
ent.NumLink++ // at least one name(ent.Name) references this entry.
if ent.Type == "hardlink" {
if org, ok := r.m[cleanEntryName(ent.LinkName)]; ok {
org.NumLink++ // original entry is referenced by this ent.Name.
ent = org
} else {
return fmt.Errorf("%q is a hardlink but the linkname %q isn't found", ent.Name, ent.LinkName)
}
}
pdir.addChild(path.Base(name), ent)
}
lastOffset := r.sr.Size()
for i := len(r.toc.Entries) - 1; i >= 0; i-- {
e := r.toc.Entries[i]
if e.isDataType() {
e.nextOffset = lastOffset
}
if e.Offset != 0 {
lastOffset = e.Offset
}
}
return nil
}
func parentDir(p string) string {
dir, _ := path.Split(p)
return strings.TrimSuffix(dir, "/")
}
func (r *Reader) getOrCreateDir(d string) *TOCEntry {
e, ok := r.m[d]
if !ok {
e = &TOCEntry{
Name: d,
Type: "dir",
Mode: 0755,
NumLink: 2, // The directory itself(.) and the parent link to this directory.
}
r.m[d] = e
if d != "" {
pdir := r.getOrCreateDir(parentDir(d))
pdir.addChild(path.Base(d), e)
}
}
return e
}
// VerifyTOC checks that the TOC JSON in the passed blob matches the
// passed digests and that the TOC JSON contains digests for all chunks
// contained in the blob. If the verification succceeds, this function
// returns TOCEntryVerifier which holds all chunk digests in the stargz blob.
func (r *Reader) VerifyTOC(tocDigest digest.Digest) (TOCEntryVerifier, error) {
// Verify the digest of TOC JSON
if r.tocDigest != tocDigest {
return nil, fmt.Errorf("invalid TOC JSON %q; want %q", r.tocDigest, tocDigest)
}
chunkDigestMap := make(map[int64]digest.Digest) // map from chunk offset to the chunk digest
regDigestMap := make(map[int64]digest.Digest) // map from chunk offset to the reg file digest
var chunkDigestMapIncomplete bool
var regDigestMapIncomplete bool
var containsChunk bool
for _, e := range r.toc.Entries {
if e.Type != "reg" && e.Type != "chunk" {
continue
}
// offset must be unique in stargz blob
_, dOK := chunkDigestMap[e.Offset]
_, rOK := regDigestMap[e.Offset]
if dOK || rOK {
return nil, fmt.Errorf("offset %d found twice", e.Offset)
}
if e.Type == "reg" {
if e.Size == 0 {
continue // ignores empty file
}
// record the digest of regular file payload
if e.Digest != "" {
d, err := digest.Parse(e.Digest)
if err != nil {
return nil, errors.Wrapf(err,
"failed to parse regular file digest %q", e.Digest)
}
regDigestMap[e.Offset] = d
} else {
regDigestMapIncomplete = true
}
} else {
containsChunk = true // this layer contains "chunk" entries.
}
// "reg" also can contain ChunkDigest (e.g. when "reg" is the first entry of
// chunked file)
if e.ChunkDigest != "" {
d, err := digest.Parse(e.ChunkDigest)
if err != nil {
return nil, errors.Wrapf(err,
"failed to parse chunk digest %q", e.ChunkDigest)
}
chunkDigestMap[e.Offset] = d
} else {
chunkDigestMapIncomplete = true
}
}
if chunkDigestMapIncomplete {
// Though some chunk digests are not found, if this layer doesn't contain
// "chunk"s and all digest of "reg" files are recorded, we can use them instead.
if !containsChunk && !regDigestMapIncomplete {
return &verifier{digestMap: regDigestMap}, nil
}
return nil, fmt.Errorf("some ChunkDigest not found in TOC JSON")
}
return &verifier{digestMap: chunkDigestMap}, nil
}
// verifier is an implementation of TOCEntryVerifier which holds verifiers keyed by
// offset of the chunk.
type verifier struct {
digestMap map[int64]digest.Digest
digestMapMu sync.Mutex
}
// Verifier returns a content verifier specified by TOCEntry.
func (v *verifier) Verifier(ce *TOCEntry) (digest.Verifier, error) {
v.digestMapMu.Lock()
defer v.digestMapMu.Unlock()
d, ok := v.digestMap[ce.Offset]
if !ok {
return nil, fmt.Errorf("verifier for offset=%d,size=%d hasn't been registered",
ce.Offset, ce.ChunkSize)
}
return d.Verifier(), nil
}
// ChunkEntryForOffset returns the TOCEntry containing the byte of the
// named file at the given offset within the file.
// Name must be absolute path or one that is relative to root.
func (r *Reader) ChunkEntryForOffset(name string, offset int64) (e *TOCEntry, ok bool) {
name = cleanEntryName(name)
e, ok = r.Lookup(name)
if !ok || !e.isDataType() {
return nil, false
}
ents := r.chunks[name]
if len(ents) < 2 {
if offset >= e.ChunkSize {
return nil, false
}
return e, true
}
i := sort.Search(len(ents), func(i int) bool {
e := ents[i]
return e.ChunkOffset >= offset || (offset > e.ChunkOffset && offset < e.ChunkOffset+e.ChunkSize)
})
if i == len(ents) {
return nil, false
}
return ents[i], true
}
// Lookup returns the Table of Contents entry for the given path.
//
// To get the root directory, use the empty string.
// Path must be absolute path or one that is relative to root.
func (r *Reader) Lookup(path string) (e *TOCEntry, ok bool) {
path = cleanEntryName(path)
if r == nil {
return
}
e, ok = r.m[path]
if ok && e.Type == "hardlink" {
e, ok = r.m[e.LinkName]
}
return
}
// OpenFile returns the reader of the specified file payload.
//
// Name must be absolute path or one that is relative to root.
func (r *Reader) OpenFile(name string) (*io.SectionReader, error) {
name = cleanEntryName(name)
ent, ok := r.Lookup(name)
if !ok {
// TODO: come up with some error plan. This is lazy:
return nil, &os.PathError{
Path: name,
Op: "OpenFile",
Err: os.ErrNotExist,
}
}
if ent.Type != "reg" {
return nil, &os.PathError{
Path: name,
Op: "OpenFile",
Err: errors.New("not a regular file"),
}
}
fr := &fileReader{
r: r,
size: ent.Size,
ents: r.getChunks(ent),
}
return io.NewSectionReader(fr, 0, fr.size), nil
}
func (r *Reader) getChunks(ent *TOCEntry) []*TOCEntry {
if ents, ok := r.chunks[ent.Name]; ok {
return ents
}
return []*TOCEntry{ent}
}
type fileReader struct {
r *Reader
size int64
ents []*TOCEntry // 1 or more reg/chunk entries
}
func (fr *fileReader) ReadAt(p []byte, off int64) (n int, err error) {
if off >= fr.size {
return 0, io.EOF
}
if off < 0 {
return 0, errors.New("invalid offset")
}
var i int
if len(fr.ents) > 1 {
i = sort.Search(len(fr.ents), func(i int) bool {
return fr.ents[i].ChunkOffset >= off
})
if i == len(fr.ents) {
i = len(fr.ents) - 1
}
}
ent := fr.ents[i]
if ent.ChunkOffset > off {
if i == 0 {
return 0, errors.New("internal error; first chunk offset is non-zero")
}
ent = fr.ents[i-1]
}
// If ent is a chunk of a large file, adjust the ReadAt
// offset by the chunk's offset.
off -= ent.ChunkOffset
finalEnt := fr.ents[len(fr.ents)-1]
compressedOff := ent.Offset
// compressedBytesRemain is the number of compressed bytes in this
// file remaining, over 1+ chunks.
compressedBytesRemain := finalEnt.NextOffset() - compressedOff
sr := io.NewSectionReader(fr.r.sr, compressedOff, compressedBytesRemain)
const maxRead = 2 << 20
var bufSize = maxRead
if compressedBytesRemain < maxRead {
bufSize = int(compressedBytesRemain)
}
br := bufio.NewReaderSize(sr, bufSize)
if _, err := br.Peek(bufSize); err != nil {
return 0, fmt.Errorf("fileReader.ReadAt.peek: %v", err)
}
dr, err := fr.r.decompressor.Reader(br)
if err != nil {
return 0, fmt.Errorf("fileReader.ReadAt.decompressor.Reader: %v", err)
}
defer dr.Close()
if n, err := io.CopyN(ioutil.Discard, dr, off); n != off || err != nil {
return 0, fmt.Errorf("discard of %d bytes = %v, %v", off, n, err)
}
return io.ReadFull(dr, p)
}
// A Writer writes stargz files.
//
// Use NewWriter to create a new Writer.
type Writer struct {
bw *bufio.Writer
cw *countWriter
toc *JTOC
diffHash hash.Hash // SHA-256 of uncompressed tar
closed bool
gz io.WriteCloser
lastUsername map[int]string
lastGroupname map[int]string
compressor Compressor
// ChunkSize optionally controls the maximum number of bytes
// of data of a regular file that can be written in one gzip
// stream before a new gzip stream is started.
// Zero means to use a default, currently 4 MiB.
ChunkSize int
}
// currentCompressionWriter writes to the current w.gz field, which can
// change throughout writing a tar entry.
//
// Additionally, it updates w's SHA-256 of the uncompressed bytes
// of the tar file.
type currentCompressionWriter struct{ w *Writer }
func (ccw currentCompressionWriter) Write(p []byte) (int, error) {
ccw.w.diffHash.Write(p)
return ccw.w.gz.Write(p)
}
func (w *Writer) chunkSize() int {
if w.ChunkSize <= 0 {
return 4 << 20
}
return w.ChunkSize
}
// NewWriter returns a new stargz writer (gzip-based) writing to w.
//
// The writer must be closed to write its trailing table of contents.
func NewWriter(w io.Writer) *Writer {
return NewWriterLevel(w, gzip.BestCompression)
}
// NewWriterLevel returns a new stargz writer (gzip-based) writing to w.
// The compression level is configurable.
//
// The writer must be closed to write its trailing table of contents.
func NewWriterLevel(w io.Writer, compressionLevel int) *Writer {
return NewWriterWithCompressor(w, NewGzipCompressorWithLevel(compressionLevel))
}
// NewWriterLevel returns a new stargz writer writing to w.
// The compression method is configurable.
//
// The writer must be closed to write its trailing table of contents.
func NewWriterWithCompressor(w io.Writer, c Compressor) *Writer {
bw := bufio.NewWriter(w)
cw := &countWriter{w: bw}
return &Writer{
bw: bw,
cw: cw,
toc: &JTOC{Version: 1},
diffHash: sha256.New(),
compressor: c,
}
}
// Close writes the stargz's table of contents and flushes all the
// buffers, returning any error.
func (w *Writer) Close() (digest.Digest, error) {
if w.closed {
return "", nil
}
defer func() { w.closed = true }()
if err := w.closeGz(); err != nil {
return "", err
}
// Write the TOC index and footer.
tocDigest, err := w.compressor.WriteTOCAndFooter(w.cw, w.cw.n, w.toc, w.diffHash)
if err != nil {
return "", err
}
if err := w.bw.Flush(); err != nil {
return "", err
}
return tocDigest, nil
}
func (w *Writer) closeGz() error {
if w.closed {
return errors.New("write on closed Writer")
}
if w.gz != nil {
if err := w.gz.Close(); err != nil {
return err
}
w.gz = nil
}
return nil
}
// nameIfChanged returns name, unless it was the already the value of (*mp)[id],
// in which case it returns the empty string.
func (w *Writer) nameIfChanged(mp *map[int]string, id int, name string) string {
if name == "" {
return ""
}
if *mp == nil {
*mp = make(map[int]string)
}
if (*mp)[id] == name {
return ""
}
(*mp)[id] = name
return name
}
func (w *Writer) condOpenGz() (err error) {
if w.gz == nil {
w.gz, err = w.compressor.Writer(w.cw)
}
return
}
// AppendTar reads the tar or tar.gz file from r and appends
// each of its contents to w.
//
// The input r can optionally be gzip compressed but the output will
// always be gzip compressed.
func (w *Writer) AppendTar(r io.Reader) error {
br := bufio.NewReader(r)
var tr *tar.Reader
if isGzip(br) {
// NewReader can't fail if isGzip returned true.
zr, _ := gzip.NewReader(br)
tr = tar.NewReader(zr)
} else {
tr = tar.NewReader(br)
}
for {
h, err := tr.Next()
if err == io.EOF {
break
}
if err != nil {
return fmt.Errorf("error reading from source tar: tar.Reader.Next: %v", err)
}
if h.Name == TOCTarName {
// It is possible for a layer to be "stargzified" twice during the
// distribution lifecycle. So we reserve "TOCTarName" here to avoid
// duplicated entries in the resulting layer.
continue
}
xattrs := make(map[string][]byte)
const xattrPAXRecordsPrefix = "SCHILY.xattr."
if h.PAXRecords != nil {
for k, v := range h.PAXRecords {
if strings.HasPrefix(k, xattrPAXRecordsPrefix) {
xattrs[k[len(xattrPAXRecordsPrefix):]] = []byte(v)
}
}
}
ent := &TOCEntry{
Name: h.Name,
Mode: h.Mode,
UID: h.Uid,
GID: h.Gid,
Uname: w.nameIfChanged(&w.lastUsername, h.Uid, h.Uname),
Gname: w.nameIfChanged(&w.lastGroupname, h.Gid, h.Gname),
ModTime3339: formatModtime(h.ModTime),
Xattrs: xattrs,
}
if err := w.condOpenGz(); err != nil {
return err
}
tw := tar.NewWriter(currentCompressionWriter{w})
if err := tw.WriteHeader(h); err != nil {
return err
}
switch h.Typeflag {
case tar.TypeLink:
ent.Type = "hardlink"
ent.LinkName = h.Linkname
case tar.TypeSymlink:
ent.Type = "symlink"
ent.LinkName = h.Linkname
case tar.TypeDir:
ent.Type = "dir"
case tar.TypeReg:
ent.Type = "reg"
ent.Size = h.Size
case tar.TypeChar:
ent.Type = "char"
ent.DevMajor = int(h.Devmajor)
ent.DevMinor = int(h.Devminor)
case tar.TypeBlock:
ent.Type = "block"
ent.DevMajor = int(h.Devmajor)
ent.DevMinor = int(h.Devminor)
case tar.TypeFifo:
ent.Type = "fifo"
default:
return fmt.Errorf("unsupported input tar entry %q", h.Typeflag)
}
// We need to keep a reference to the TOC entry for regular files, so that we
// can fill the digest later.
var regFileEntry *TOCEntry
var payloadDigest digest.Digester
if h.Typeflag == tar.TypeReg {
regFileEntry = ent
payloadDigest = digest.Canonical.Digester()
}
if h.Typeflag == tar.TypeReg && ent.Size > 0 {
var written int64
totalSize := ent.Size // save it before we destroy ent
tee := io.TeeReader(tr, payloadDigest.Hash())
for written < totalSize {
if err := w.closeGz(); err != nil {
return err
}
chunkSize := int64(w.chunkSize())
remain := totalSize - written
if remain < chunkSize {
chunkSize = remain
} else {
ent.ChunkSize = chunkSize
}
ent.Offset = w.cw.n
ent.ChunkOffset = written
chunkDigest := digest.Canonical.Digester()
if err := w.condOpenGz(); err != nil {
return err
}
teeChunk := io.TeeReader(tee, chunkDigest.Hash())
if _, err := io.CopyN(tw, teeChunk, chunkSize); err != nil {
return fmt.Errorf("error copying %q: %v", h.Name, err)
}
ent.ChunkDigest = chunkDigest.Digest().String()
w.toc.Entries = append(w.toc.Entries, ent)
written += chunkSize
ent = &TOCEntry{
Name: h.Name,
Type: "chunk",
}
}
} else {
w.toc.Entries = append(w.toc.Entries, ent)
}
if payloadDigest != nil {
regFileEntry.Digest = payloadDigest.Digest().String()
}
if err := tw.Flush(); err != nil {
return err
}
}
return nil
}
// DiffID returns the SHA-256 of the uncompressed tar bytes.
// It is only valid to call DiffID after Close.
func (w *Writer) DiffID() string {
return fmt.Sprintf("sha256:%x", w.diffHash.Sum(nil))
}
func maxFooterSize(blobSize int64, decompressors ...Decompressor) (res int64) {
for _, d := range decompressors {
if s := d.FooterSize(); res < s && s <= blobSize {
res = s
}
}
return
}
func parseTOC(d Decompressor, sr *io.SectionReader, tocOff, tocSize int64, tocBytes []byte, opts openOpts) (*Reader, error) {
if len(tocBytes) > 0 {
start := time.Now()
toc, tocDgst, err := d.ParseTOC(bytes.NewReader(tocBytes))
if err == nil {
if opts.telemetry != nil && opts.telemetry.DeserializeTocLatency != nil {
opts.telemetry.DeserializeTocLatency(start)
}
return &Reader{
sr: sr,
toc: toc,
tocDigest: tocDgst,
decompressor: d,
}, nil
}
}
start := time.Now()
tocBytes = make([]byte, tocSize)
if _, err := sr.ReadAt(tocBytes, tocOff); err != nil {
return nil, fmt.Errorf("error reading %d byte TOC targz: %v", len(tocBytes), err)
}
if opts.telemetry != nil && opts.telemetry.GetTocLatency != nil {
opts.telemetry.GetTocLatency(start)
}
start = time.Now()
toc, tocDgst, err := d.ParseTOC(bytes.NewReader(tocBytes))
if err != nil {
return nil, err
}
if opts.telemetry != nil && opts.telemetry.DeserializeTocLatency != nil {
opts.telemetry.DeserializeTocLatency(start)
}
return &Reader{
sr: sr,
toc: toc,
tocDigest: tocDgst,
decompressor: d,
}, nil
}
func formatModtime(t time.Time) string {
if t.IsZero() || t.Unix() == 0 {
return ""
}
return t.UTC().Round(time.Second).Format(time.RFC3339)
}
func cleanEntryName(name string) string {
// Use path.Clean to consistently deal with path separators across platforms.
return strings.TrimPrefix(path.Clean("/"+name), "/")
}
// countWriter counts how many bytes have been written to its wrapped
// io.Writer.
type countWriter struct {
w io.Writer
n int64
}
func (cw *countWriter) Write(p []byte) (n int, err error) {
n, err = cw.w.Write(p)
cw.n += int64(n)
return
}
// isGzip reports whether br is positioned right before an upcoming gzip stream.
// It does not consume any bytes from br.
func isGzip(br *bufio.Reader) bool {
const (
gzipID1 = 0x1f
gzipID2 = 0x8b
gzipDeflate = 8
)
peek, _ := br.Peek(3)
return len(peek) >= 3 && peek[0] == gzipID1 && peek[1] == gzipID2 && peek[2] == gzipDeflate
}
func positive(n int64) int64 {
if n < 0 {
return 0
}
return n
}

View File

@ -0,0 +1,10 @@
module github.com/containerd/stargz-snapshotter/estargz
go 1.16
require (
github.com/klauspost/compress v1.13.5
github.com/opencontainers/go-digest v1.0.0
github.com/pkg/errors v0.9.1
golang.org/x/sync v0.0.0-20201207232520-09787c993a3a
)

View File

@ -0,0 +1,8 @@
github.com/klauspost/compress v1.13.5 h1:9O69jUPDcsT9fEm74W92rZL9FQY7rCdaXVneq+yyzl4=
github.com/klauspost/compress v1.13.5/go.mod h1:/3/Vjq9QcHkK5uEr5lBEmyoZ1iFhe47etQ6QUkpK6sk=
github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=
github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
golang.org/x/sync v0.0.0-20201207232520-09787c993a3a h1:DcqTD9SDLc+1P/r1EmRBwnVsrOwW+kk2vWf9n+1sGhs=
golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=

View File

@ -0,0 +1,216 @@
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/*
Copyright 2019 The Go Authors. All rights reserved.
Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file.
*/
package estargz
import (
"archive/tar"
"bytes"
"compress/gzip"
"encoding/binary"
"encoding/json"
"fmt"
"hash"
"io"
"strconv"
digest "github.com/opencontainers/go-digest"
"github.com/pkg/errors"
)
type gzipCompression struct {
*gzipCompressor
*GzipDecompressor
}
func newGzipCompressionWithLevel(level int) Compression {
return &gzipCompression{
&gzipCompressor{level},
&GzipDecompressor{},
}
}
func NewGzipCompressorWithLevel(level int) Compressor {
return &gzipCompressor{level}
}
type gzipCompressor struct {
compressionLevel int
}
func (gc *gzipCompressor) Writer(w io.Writer) (io.WriteCloser, error) {
return gzip.NewWriterLevel(w, gc.compressionLevel)
}
func (gc *gzipCompressor) WriteTOCAndFooter(w io.Writer, off int64, toc *JTOC, diffHash hash.Hash) (digest.Digest, error) {
tocJSON, err := json.MarshalIndent(toc, "", "\t")
if err != nil {
return "", err
}
gz, _ := gzip.NewWriterLevel(w, gc.compressionLevel)
gw := io.Writer(gz)
if diffHash != nil {
gw = io.MultiWriter(gz, diffHash)
}
tw := tar.NewWriter(gw)
if err := tw.WriteHeader(&tar.Header{
Typeflag: tar.TypeReg,
Name: TOCTarName,
Size: int64(len(tocJSON)),
}); err != nil {
return "", err
}
if _, err := tw.Write(tocJSON); err != nil {
return "", err
}
if err := tw.Close(); err != nil {
return "", err
}
if err := gz.Close(); err != nil {
return "", err
}
if _, err := w.Write(gzipFooterBytes(off)); err != nil {
return "", err
}
return digest.FromBytes(tocJSON), nil
}
// gzipFooterBytes returns the 51 bytes footer.
func gzipFooterBytes(tocOff int64) []byte {
buf := bytes.NewBuffer(make([]byte, 0, FooterSize))
gz, _ := gzip.NewWriterLevel(buf, gzip.NoCompression) // MUST be NoCompression to keep 51 bytes
// Extra header indicating the offset of TOCJSON
// https://tools.ietf.org/html/rfc1952#section-2.3.1.1
header := make([]byte, 4)
header[0], header[1] = 'S', 'G'
subfield := fmt.Sprintf("%016xSTARGZ", tocOff)
binary.LittleEndian.PutUint16(header[2:4], uint16(len(subfield))) // little-endian per RFC1952
gz.Header.Extra = append(header, []byte(subfield)...)
gz.Close()
if buf.Len() != FooterSize {
panic(fmt.Sprintf("footer buffer = %d, not %d", buf.Len(), FooterSize))
}
return buf.Bytes()
}
type GzipDecompressor struct{}
func (gz *GzipDecompressor) Reader(r io.Reader) (io.ReadCloser, error) {
return gzip.NewReader(r)
}
func (gz *GzipDecompressor) ParseTOC(r io.Reader) (toc *JTOC, tocDgst digest.Digest, err error) {
return parseTOCEStargz(r)
}
func (gz *GzipDecompressor) ParseFooter(p []byte) (tocOffset, tocSize int64, err error) {
if len(p) != FooterSize {
return 0, 0, fmt.Errorf("invalid length %d cannot be parsed", len(p))
}
zr, err := gzip.NewReader(bytes.NewReader(p))
if err != nil {
return 0, 0, err
}
defer zr.Close()
extra := zr.Header.Extra
si1, si2, subfieldlen, subfield := extra[0], extra[1], extra[2:4], extra[4:]
if si1 != 'S' || si2 != 'G' {
return 0, 0, fmt.Errorf("invalid subfield IDs: %q, %q; want E, S", si1, si2)
}
if slen := binary.LittleEndian.Uint16(subfieldlen); slen != uint16(16+len("STARGZ")) {
return 0, 0, fmt.Errorf("invalid length of subfield %d; want %d", slen, 16+len("STARGZ"))
}
if string(subfield[16:]) != "STARGZ" {
return 0, 0, fmt.Errorf("STARGZ magic string must be included in the footer subfield")
}
tocOffset, err = strconv.ParseInt(string(subfield[:16]), 16, 64)
if err != nil {
return 0, 0, errors.Wrapf(err, "legacy: failed to parse toc offset")
}
return tocOffset, 0, nil
}
func (gz *GzipDecompressor) FooterSize() int64 {
return FooterSize
}
type legacyGzipDecompressor struct{}
func (gz *legacyGzipDecompressor) Reader(r io.Reader) (io.ReadCloser, error) {
return gzip.NewReader(r)
}
func (gz *legacyGzipDecompressor) ParseTOC(r io.Reader) (toc *JTOC, tocDgst digest.Digest, err error) {
return parseTOCEStargz(r)
}
func (gz *legacyGzipDecompressor) ParseFooter(p []byte) (tocOffset, tocSize int64, err error) {
if len(p) != legacyFooterSize {
return 0, 0, fmt.Errorf("legacy: invalid length %d cannot be parsed", len(p))
}
zr, err := gzip.NewReader(bytes.NewReader(p))
if err != nil {
return 0, 0, errors.Wrapf(err, "legacy: failed to get footer gzip reader")
}
defer zr.Close()
extra := zr.Header.Extra
if len(extra) != 16+len("STARGZ") {
return 0, 0, fmt.Errorf("legacy: invalid stargz's extra field size")
}
if string(extra[16:]) != "STARGZ" {
return 0, 0, fmt.Errorf("legacy: magic string STARGZ not found")
}
tocOffset, err = strconv.ParseInt(string(extra[:16]), 16, 64)
if err != nil {
return 0, 0, errors.Wrapf(err, "legacy: failed to parse toc offset")
}
return tocOffset, 0, nil
}
func (gz *legacyGzipDecompressor) FooterSize() int64 {
return legacyFooterSize
}
func parseTOCEStargz(r io.Reader) (toc *JTOC, tocDgst digest.Digest, err error) {
zr, err := gzip.NewReader(r)
if err != nil {
return nil, "", fmt.Errorf("malformed TOC gzip header: %v", err)
}
defer zr.Close()
zr.Multistream(false)
tr := tar.NewReader(zr)
h, err := tr.Next()
if err != nil {
return nil, "", fmt.Errorf("failed to find tar header in TOC gzip stream: %v", err)
}
if h.Name != TOCTarName {
return nil, "", fmt.Errorf("TOC tar entry had name %q; expected %q", h.Name, TOCTarName)
}
dgstr := digest.Canonical.Digester()
toc = new(JTOC)
if err := json.NewDecoder(io.TeeReader(tr, dgstr.Hash())).Decode(&toc); err != nil {
return nil, "", fmt.Errorf("error decoding TOC JSON: %v", err)
}
return toc, dgstr.Digest(), nil
}

File diff suppressed because it is too large Load Diff

View File

@ -0,0 +1,314 @@
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/*
Copyright 2019 The Go Authors. All rights reserved.
Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file.
*/
package estargz
import (
"archive/tar"
"hash"
"io"
"os"
"path"
"time"
digest "github.com/opencontainers/go-digest"
)
const (
// TOCTarName is the name of the JSON file in the tar archive in the
// table of contents gzip stream.
TOCTarName = "stargz.index.json"
// FooterSize is the number of bytes in the footer
//
// The footer is an empty gzip stream with no compression and an Extra
// header of the form "%016xSTARGZ", where the 64 bit hex-encoded
// number is the offset to the gzip stream of JSON TOC.
//
// 51 comes from:
//
// 10 bytes gzip header
// 2 bytes XLEN (length of Extra field) = 26 (4 bytes header + 16 hex digits + len("STARGZ"))
// 2 bytes Extra: SI1 = 'S', SI2 = 'G'
// 2 bytes Extra: LEN = 22 (16 hex digits + len("STARGZ"))
// 22 bytes Extra: subfield = fmt.Sprintf("%016xSTARGZ", offsetOfTOC)
// 5 bytes flate header
// 8 bytes gzip footer
// (End of the eStargz blob)
//
// NOTE: For Extra fields, subfield IDs SI1='S' SI2='G' is used for eStargz.
FooterSize = 51
// legacyFooterSize is the number of bytes in the legacy stargz footer.
//
// 47 comes from:
//
// 10 byte gzip header +
// 2 byte (LE16) length of extra, encoding 22 (16 hex digits + len("STARGZ")) == "\x16\x00" +
// 22 bytes of extra (fmt.Sprintf("%016xSTARGZ", tocGzipOffset))
// 5 byte flate header
// 8 byte gzip footer (two little endian uint32s: digest, size)
legacyFooterSize = 47
// TOCJSONDigestAnnotation is an annotation for an image layer. This stores the
// digest of the TOC JSON.
// This annotation is valid only when it is specified in `.[]layers.annotations`
// of an image manifest.
TOCJSONDigestAnnotation = "containerd.io/snapshot/stargz/toc.digest"
// StoreUncompressedSizeAnnotation is an additional annotation key for eStargz to enable lazy
// pulling on containers/storage. Stargz Store is required to expose the layer's uncompressed size
// to the runtime but current OCI image doesn't ship this information by default. So we store this
// to the special annotation.
StoreUncompressedSizeAnnotation = "io.containers.estargz.uncompressed-size"
// PrefetchLandmark is a file entry which indicates the end position of
// prefetch in the stargz file.
PrefetchLandmark = ".prefetch.landmark"
// NoPrefetchLandmark is a file entry which indicates that no prefetch should
// occur in the stargz file.
NoPrefetchLandmark = ".no.prefetch.landmark"
landmarkContents = 0xf
)
// JTOC is the JSON-serialized table of contents index of the files in the stargz file.
type JTOC struct {
Version int `json:"version"`
Entries []*TOCEntry `json:"entries"`
}
// TOCEntry is an entry in the stargz file's TOC (Table of Contents).
type TOCEntry struct {
// Name is the tar entry's name. It is the complete path
// stored in the tar file, not just the base name.
Name string `json:"name"`
// Type is one of "dir", "reg", "symlink", "hardlink", "char",
// "block", "fifo", or "chunk".
// The "chunk" type is used for regular file data chunks past the first
// TOCEntry; the 2nd chunk and on have only Type ("chunk"), Offset,
// ChunkOffset, and ChunkSize populated.
Type string `json:"type"`
// Size, for regular files, is the logical size of the file.
Size int64 `json:"size,omitempty"`
// ModTime3339 is the modification time of the tar entry. Empty
// means zero or unknown. Otherwise it's in UTC RFC3339
// format. Use the ModTime method to access the time.Time value.
ModTime3339 string `json:"modtime,omitempty"`
modTime time.Time
// LinkName, for symlinks and hardlinks, is the link target.
LinkName string `json:"linkName,omitempty"`
// Mode is the permission and mode bits.
Mode int64 `json:"mode,omitempty"`
// UID is the user ID of the owner.
UID int `json:"uid,omitempty"`
// GID is the group ID of the owner.
GID int `json:"gid,omitempty"`
// Uname is the username of the owner.
//
// In the serialized JSON, this field may only be present for
// the first entry with the same UID.
Uname string `json:"userName,omitempty"`
// Gname is the group name of the owner.
//
// In the serialized JSON, this field may only be present for
// the first entry with the same GID.
Gname string `json:"groupName,omitempty"`
// Offset, for regular files, provides the offset in the
// stargz file to the file's data bytes. See ChunkOffset and
// ChunkSize.
Offset int64 `json:"offset,omitempty"`
nextOffset int64 // the Offset of the next entry with a non-zero Offset
// DevMajor is the major device number for "char" and "block" types.
DevMajor int `json:"devMajor,omitempty"`
// DevMinor is the major device number for "char" and "block" types.
DevMinor int `json:"devMinor,omitempty"`
// NumLink is the number of entry names pointing to this entry.
// Zero means one name references this entry.
NumLink int
// Xattrs are the extended attribute for the entry.
Xattrs map[string][]byte `json:"xattrs,omitempty"`
// Digest stores the OCI checksum for regular files payload.
// It has the form "sha256:abcdef01234....".
Digest string `json:"digest,omitempty"`
// ChunkOffset is non-zero if this is a chunk of a large,
// regular file. If so, the Offset is where the gzip header of
// ChunkSize bytes at ChunkOffset in Name begin.
//
// In serialized form, a "chunkSize" JSON field of zero means
// that the chunk goes to the end of the file. After reading
// from the stargz TOC, though, the ChunkSize is initialized
// to a non-zero file for when Type is either "reg" or
// "chunk".
ChunkOffset int64 `json:"chunkOffset,omitempty"`
ChunkSize int64 `json:"chunkSize,omitempty"`
// ChunkDigest stores an OCI digest of the chunk. This must be formed
// as "sha256:0123abcd...".
ChunkDigest string `json:"chunkDigest,omitempty"`
children map[string]*TOCEntry
}
// ModTime returns the entry's modification time.
func (e *TOCEntry) ModTime() time.Time { return e.modTime }
// NextOffset returns the position (relative to the start of the
// stargz file) of the next gzip boundary after e.Offset.
func (e *TOCEntry) NextOffset() int64 { return e.nextOffset }
func (e *TOCEntry) addChild(baseName string, child *TOCEntry) {
if e.children == nil {
e.children = make(map[string]*TOCEntry)
}
if child.Type == "dir" {
e.NumLink++ // Entry ".." in the subdirectory links to this directory
}
e.children[baseName] = child
}
// isDataType reports whether TOCEntry is a regular file or chunk (something that
// contains regular file data).
func (e *TOCEntry) isDataType() bool { return e.Type == "reg" || e.Type == "chunk" }
// Stat returns a FileInfo value representing e.
func (e *TOCEntry) Stat() os.FileInfo { return fileInfo{e} }
// ForeachChild calls f for each child item. If f returns false, iteration ends.
// If e is not a directory, f is not called.
func (e *TOCEntry) ForeachChild(f func(baseName string, ent *TOCEntry) bool) {
for name, ent := range e.children {
if !f(name, ent) {
return
}
}
}
// LookupChild returns the directory e's child by its base name.
func (e *TOCEntry) LookupChild(baseName string) (child *TOCEntry, ok bool) {
child, ok = e.children[baseName]
return
}
// fileInfo implements os.FileInfo using the wrapped *TOCEntry.
type fileInfo struct{ e *TOCEntry }
var _ os.FileInfo = fileInfo{}
func (fi fileInfo) Name() string { return path.Base(fi.e.Name) }
func (fi fileInfo) IsDir() bool { return fi.e.Type == "dir" }
func (fi fileInfo) Size() int64 { return fi.e.Size }
func (fi fileInfo) ModTime() time.Time { return fi.e.ModTime() }
func (fi fileInfo) Sys() interface{} { return fi.e }
func (fi fileInfo) Mode() (m os.FileMode) {
// TOCEntry.Mode is tar.Header.Mode so we can understand the these bits using `tar` pkg.
m = (&tar.Header{Mode: fi.e.Mode}).FileInfo().Mode() &
(os.ModePerm | os.ModeSetuid | os.ModeSetgid | os.ModeSticky)
switch fi.e.Type {
case "dir":
m |= os.ModeDir
case "symlink":
m |= os.ModeSymlink
case "char":
m |= os.ModeDevice | os.ModeCharDevice
case "block":
m |= os.ModeDevice
case "fifo":
m |= os.ModeNamedPipe
}
return m
}
// TOCEntryVerifier holds verifiers that are usable for verifying chunks contained
// in a eStargz blob.
type TOCEntryVerifier interface {
// Verifier provides a content verifier that can be used for verifying the
// contents of the specified TOCEntry.
Verifier(ce *TOCEntry) (digest.Verifier, error)
}
// Compression provides the compression helper to be used creating and parsing eStargz.
// This package provides gzip-based Compression by default, but any compression
// algorithm (e.g. zstd) can be used as long as it implements Compression.
type Compression interface {
Compressor
Decompressor
}
// Compressor represents the helper mothods to be used for creating eStargz.
type Compressor interface {
// Writer returns WriteCloser to be used for writing a chunk to eStargz.
// Everytime a chunk is written, the WriteCloser is closed and Writer is
// called again for writing the next chunk.
Writer(w io.Writer) (io.WriteCloser, error)
// WriteTOCAndFooter is called to write JTOC to the passed Writer.
// diffHash calculates the DiffID (uncompressed sha256 hash) of the blob
// WriteTOCAndFooter can optionally write anything that affects DiffID calculation
// (e.g. uncompressed TOC JSON).
//
// This function returns tocDgst that represents the digest of TOC that will be used
// to verify this blob when it's parsed.
WriteTOCAndFooter(w io.Writer, off int64, toc *JTOC, diffHash hash.Hash) (tocDgst digest.Digest, err error)
}
// Deompressor represents the helper mothods to be used for parsing eStargz.
type Decompressor interface {
// Reader returns ReadCloser to be used for decompressing file payload.
Reader(r io.Reader) (io.ReadCloser, error)
// FooterSize returns the size of the footer of this blob.
FooterSize() int64
// ParseFooter parses the footer and returns the offset and (compressed) size of TOC.
//
// Here, tocSize is optional. If tocSize <= 0, it's by default the size of the range
// from tocOffset until the beginning of the footer (blob size - tocOff - FooterSize).
ParseFooter(p []byte) (tocOffset, tocSize int64, err error)
// ParseTOC parses TOC from the passed reader. The reader provides the partial contents
// of the underlying blob that has the range specified by ParseFooter method.
//
// This function returns tocDgst that represents the digest of TOC that will be used
// to verify this blob. This must match to the value returned from
// Compressor.WriteTOCAndFooter that is used when creating this blob.
ParseTOC(r io.Reader) (toc *JTOC, tocDgst digest.Digest, err error)
}

View File

@ -1 +1 @@
1.35.0
1.36.0

View File

@ -5,20 +5,25 @@ module github.com/containers/storage
require (
github.com/BurntSushi/toml v0.4.1
github.com/Microsoft/go-winio v0.5.0
github.com/Microsoft/hcsshim v0.8.20
github.com/Microsoft/hcsshim v0.8.22
github.com/containerd/stargz-snapshotter/estargz v0.8.0
github.com/docker/go-units v0.4.0
github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e // indirect
github.com/google/go-intervals v0.0.2
github.com/google/uuid v1.2.0 // indirect
github.com/hashicorp/go-multierror v1.1.1
github.com/json-iterator/go v1.1.11
github.com/klauspost/compress v1.13.4
github.com/klauspost/compress v1.13.5
github.com/klauspost/pgzip v1.2.5
github.com/mattn/go-shellwords v1.0.12
github.com/mistifyio/go-zfs v2.1.2-0.20190413222219-f784269be439+incompatible
github.com/moby/sys/mountinfo v0.4.1
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
github.com/modern-go/reflect2 v1.0.1 // indirect
github.com/opencontainers/go-digest v1.0.0
github.com/opencontainers/runc v1.0.2
github.com/opencontainers/runtime-spec v1.0.3-0.20210326190908-1c3f411f0417
github.com/opencontainers/selinux v1.8.4
github.com/opencontainers/selinux v1.8.5
github.com/pkg/errors v0.9.1
github.com/sirupsen/logrus v1.8.1
github.com/stretchr/testify v1.7.0
@ -28,5 +33,6 @@ require (
github.com/vbatts/tar-split v0.11.2
golang.org/x/net v0.0.0-20210226172049-e18ecbb05110
golang.org/x/sys v0.0.0-20210820121016-41cdb8703e55
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 // indirect
gotest.tools v2.2.0+incompatible
)

View File

@ -1,302 +1,85 @@
bazil.org/fuse v0.0.0-20160811212531-371fbbdaa898/go.mod h1:Xbm+BRKSBEpa4q4hTSxohYNQpsxXPbPry4JJWOB3LB8=
cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
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github.com/fullsailor/pkcs7 v0.0.0-20190404230743-d7302db945fa/go.mod h1:KnogPXtdwXqoenmZCw6S+25EAm2MkxbG0deNDu4cbSA=
github.com/garyburd/redigo v0.0.0-20150301180006-535138d7bcd7/go.mod h1:NR3MbYisc3/PwhQ00EMzDiPmrwpPxAn5GI05/YaO1SY=
github.com/ghodss/yaml v0.0.0-20150909031657-73d445a93680/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
github.com/go-ini/ini v1.25.4/go.mod h1:ByCAeIL28uOIIG0E3PJtZPDL8WnHpFKFOtgjp+3Ies8=
github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
github.com/go-logr/logr v0.1.0/go.mod h1:ixOQHD9gLJUVQQ2ZOR7zLEifBX6tGkNJF4QyIY7sIas=
github.com/go-logr/logr v0.2.0/go.mod h1:z6/tIYblkpsD+a4lm/fGIIU9mZ+XfAiaFtq7xTgseGU=
github.com/go-openapi/jsonpointer v0.19.2/go.mod h1:3akKfEdA7DF1sugOqz1dVQHBcuDBPKZGEoHC/NkiQRg=
github.com/go-openapi/jsonpointer v0.19.3/go.mod h1:Pl9vOtqEWErmShwVjC8pYs9cog34VGT37dQOVbmoatg=
github.com/go-openapi/jsonreference v0.19.2/go.mod h1:jMjeRr2HHw6nAVajTXJ4eiUwohSTlpa0o73RUL1owJc=
github.com/go-openapi/jsonreference v0.19.3/go.mod h1:rjx6GuL8TTa9VaixXglHmQmIL98+wF9xc8zWvFonSJ8=
github.com/go-openapi/spec v0.19.3/go.mod h1:FpwSN1ksY1eteniUU7X0N/BgJ7a4WvBFVA8Lj9mJglo=
github.com/go-openapi/swag v0.19.2/go.mod h1:POnQmlKehdgb5mhVOsnJFsivZCEZ/vjK9gh66Z9tfKk=
github.com/go-openapi/swag v0.19.5/go.mod h1:POnQmlKehdgb5mhVOsnJFsivZCEZ/vjK9gh66Z9tfKk=
github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
github.com/godbus/dbus v0.0.0-20151105175453-c7fdd8b5cd55/go.mod h1:/YcGZj5zSblfDWMMoOzV4fas9FZnQYTkDnsGvmh2Grw=
github.com/godbus/dbus v0.0.0-20180201030542-885f9cc04c9c/go.mod h1:/YcGZj5zSblfDWMMoOzV4fas9FZnQYTkDnsGvmh2Grw=
github.com/godbus/dbus v0.0.0-20190422162347-ade71ed3457e/go.mod h1:bBOAhwG1umN6/6ZUMtDFBMQR8jRg9O75tm9K00oMsK4=
github.com/godbus/dbus/v5 v5.0.3/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
github.com/gogo/googleapis v1.2.0/go.mod h1:Njal3psf3qN6dwBtQfUmBZh2ybovJ0tlu3o/AC7HYjU=
github.com/gogo/googleapis v1.4.0/go.mod h1:5YRNX2z1oM5gXdAkurHa942MDgEJyk02w4OecKY87+c=
github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4=
github.com/gogo/protobuf v1.2.2-0.20190723190241-65acae22fc9d/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXPKa29o=
github.com/gogo/protobuf v1.3.0/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXPKa29o=
github.com/gogo/protobuf v1.3.1/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXPKa29o=
github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q=
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
github.com/golang/groupcache v0.0.0-20160516000752-02826c3e7903/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
github.com/golang/groupcache v0.0.0-20190129154638-5b532d6fd5ef/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
github.com/golang/groupcache v0.0.0-20191227052852-215e87163ea7/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e h1:1r7pUrabqp18hOBcwBwiTsbnFeTZHV9eER/QT5JVZxY=
github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
github.com/golang/mock v1.2.0/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
github.com/golang/mock v1.3.1/go.mod h1:sBzyDLLjw3U8JLTeZvSv8jJB+tU5PVekmnlKIyFUx0Y=
github.com/golang/mock v1.4.0/go.mod h1:UOMv5ysSaYNkG+OFQykRIcU/QvvxJf3p21QfJ2Bt3cw=
github.com/golang/mock v1.4.1/go.mod h1:UOMv5ysSaYNkG+OFQykRIcU/QvvxJf3p21QfJ2Bt3cw=
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
github.com/golang/protobuf v1.3.4/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
github.com/golang/protobuf v1.3.5/go.mod h1:6O5/vntMXwX2lRkT1hjjk0nAC1IDOTvTlVgjlRvqsdk=
github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
@ -304,131 +87,64 @@ github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrU
github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:WU3c8KckQ9AFe+yFwt9sWVRKCVIyN9cPHBJSNnbL67w=
github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QDs8UjoX8=
github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
github.com/golang/protobuf v1.4.3/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
github.com/golang/snappy v0.0.3 h1:fHPg5GQYlCeLIPB9BZqMVR5nR9A+IM5zcgeTdjMYmLA=
github.com/golang/snappy v0.0.3/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.1/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-intervals v0.0.2 h1:FGrVEiUnTRKR8yE04qzXYaJMtnIYqobR5QbblK3ixcM=
github.com/google/go-intervals v0.0.2/go.mod h1:MkaR3LNRfeKLPmqgJYs4E66z5InYjmCjbbr4TQlcT6Y=
github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
github.com/google/gofuzz v1.1.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
github.com/google/martian v2.1.0+incompatible/go.mod h1:9I4somxYTbIHy5NJKHRl3wXiIaQGbYVAs8BPL6v8lEs=
github.com/google/pprof v0.0.0-20181206194817-3ea8567a2e57/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
github.com/google/pprof v0.0.0-20190515194954-54271f7e092f/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
github.com/google/pprof v0.0.0-20191218002539-d4f498aebedc/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
github.com/google/pprof v0.0.0-20200212024743-f11f1df84d12/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
github.com/google/pprof v0.0.0-20200229191704-1ebb73c60ed3/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI=
github.com/google/uuid v1.0.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/google/uuid v1.1.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/google/uuid v1.2.0 h1:qJYtXnJRWmpe7m/3XlyhrsLrEURqHRM2kxzoxXqyUDs=
github.com/google/uuid v1.2.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+vpHVxEJEs9eg=
github.com/googleapis/gax-go/v2 v2.0.5/go.mod h1:DWXyrwAJ9X0FpwwEdw+IPEYBICEFu5mhpdKc/us6bOk=
github.com/googleapis/gnostic v0.4.1/go.mod h1:LRhVm6pbyptWbWbuZ38d1eyptfvIytN3ir6b65WBswg=
github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
github.com/gorilla/handlers v0.0.0-20150720190736-60c7bfde3e33/go.mod h1:Qkdc/uu4tH4g6mTK6auzZ766c4CA0Ng8+o/OAirnOIQ=
github.com/gorilla/mux v1.7.2/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs=
github.com/gorilla/websocket v0.0.0-20170926233335-4201258b820c/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
github.com/gorilla/websocket v1.4.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
github.com/gregjones/httpcache v0.0.0-20180305231024-9cad4c3443a7/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
github.com/grpc-ecosystem/go-grpc-middleware v1.0.0/go.mod h1:FiyG127CGDf3tlThmgyCl78X/SZQqEOJBCDaAfeWzPs=
github.com/grpc-ecosystem/go-grpc-middleware v1.0.1-0.20190118093823-f849b5445de4/go.mod h1:FiyG127CGDf3tlThmgyCl78X/SZQqEOJBCDaAfeWzPs=
github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0/go.mod h1:8NvIoxWQoOIhqOTXgfV/d3M/q6VIi02HzZEHgUlZvzk=
github.com/grpc-ecosystem/grpc-gateway v1.9.0/go.mod h1:vNeuVxBJEsws4ogUvrchl83t/GYV9WGTSLVdBhOQFDY=
github.com/grpc-ecosystem/grpc-gateway v1.9.5/go.mod h1:vNeuVxBJEsws4ogUvrchl83t/GYV9WGTSLVdBhOQFDY=
github.com/hashicorp/errwrap v0.0.0-20141028054710-7554cd9344ce/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
github.com/hashicorp/errwrap v1.0.0 h1:hLrqtEDnRye3+sgx6z4qVLNuviH3MR5aQ0ykNJa/UYA=
github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
github.com/hashicorp/go-multierror v0.0.0-20161216184304-ed905158d874/go.mod h1:JMRHfdO9jKNzS/+BTlxCjKNQHg/jZAft8U7LloJvN7I=
github.com/hashicorp/go-multierror v1.0.0/go.mod h1:dHtQlpGsu+cZNNAkkCN/P3hoUDHhCYQXV3UM06sGGrk=
github.com/hashicorp/go-multierror v1.1.1 h1:H5DkEtf6CXdFp0N0Em5UCwQpXMWke8IA0+lD48awMYo=
github.com/hashicorp/go-multierror v1.1.1/go.mod h1:iw975J/qwKPdAO1clOe2L8331t/9/fmwbPZ6JB6eMoM=
github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
github.com/imdario/mergo v0.3.5/go.mod h1:2EnlNZ0deacrJVfApfmtdGgDfMuh/nq6Ok1EcJh5FfA=
github.com/imdario/mergo v0.3.8/go.mod h1:2EnlNZ0deacrJVfApfmtdGgDfMuh/nq6Ok1EcJh5FfA=
github.com/imdario/mergo v0.3.10/go.mod h1:jmQim1M+e3UYxmgPu/WyfjB3N3VflVyUjjjwH0dnCYA=
github.com/imdario/mergo v0.3.11/go.mod h1:jmQim1M+e3UYxmgPu/WyfjB3N3VflVyUjjjwH0dnCYA=
github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
github.com/j-keck/arping v0.0.0-20160618110441-2cf9dc699c56/go.mod h1:ymszkNOg6tORTn+6F6j+Jc8TOr5osrynvN6ivFWZ2GA=
github.com/jmespath/go-jmespath v0.0.0-20160202185014-0b12d6b521d8/go.mod h1:Nht3zPeWKUH0NzdCt2Blrr5ys8VGpn0CEB0cQHVjt7k=
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github.com/jonboulle/clockwork v0.1.0/go.mod h1:Ii8DK3G1RaLaWxj9trq07+26W01tbo22gdxWY5EU2bo=
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golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
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golang.org/x/tools v0.0.0-20181030221726-6c7e314b6563/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
golang.org/x/tools v0.0.0-20190312151545-0bb0c0a6e846/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
golang.org/x/tools v0.0.0-20190312170243-e65039ee4138/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
golang.org/x/tools v0.0.0-20190425150028-36563e24a262/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
golang.org/x/tools v0.0.0-20190506145303-2d16b83fe98c/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
golang.org/x/tools v0.0.0-20190606124116-d0a3d012864b/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
golang.org/x/tools v0.0.0-20190614205625-5aca471b1d59/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
golang.org/x/tools v0.0.0-20190621195816-6e04913cbbac/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
golang.org/x/tools v0.0.0-20190624222133-a101b041ded4/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
golang.org/x/tools v0.0.0-20190628153133-6cdbf07be9d0/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
golang.org/x/tools v0.0.0-20190816200558-6889da9d5479/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20190911174233-4f2ddba30aff/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20191012152004-8de300cfc20a/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20191113191852-77e3bb0ad9e7/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20191115202509-3a792d9c32b2/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20191125144606-a911d9008d1f/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20191130070609-6e064ea0cf2d/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20191216173652-a0e659d51361/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
golang.org/x/tools v0.0.0-20191227053925-7b8e75db28f4/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
golang.org/x/tools v0.0.0-20200117161641-43d50277825c/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
golang.org/x/tools v0.0.0-20200122220014-bf1340f18c4a/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
golang.org/x/tools v0.0.0-20200204074204-1cc6d1ef6c74/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
golang.org/x/tools v0.0.0-20200207183749-b753a1ba74fa/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
golang.org/x/tools v0.0.0-20200212150539-ea181f53ac56/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
golang.org/x/tools v0.0.0-20200224181240-023911ca70b2/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
golang.org/x/tools v0.0.0-20200304193943-95d2e580d8eb/go.mod h1:o4KQGtdN14AW+yjsvvwRTJJuXz8XRtIHtEnmAXLyFUw=
golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@ -828,58 +309,20 @@ golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8T
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
google.golang.org/api v0.0.0-20160322025152-9bf6e6e569ff/go.mod h1:4mhQ8q/RsB7i+udVvVy5NUi08OU8ZlA0gRVgrF7VFY0=
google.golang.org/api v0.4.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEtwE=
google.golang.org/api v0.7.0/go.mod h1:WtwebWUNSVBH/HAw79HIFXZNqEvBhG+Ra+ax0hx3E3M=
google.golang.org/api v0.8.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg=
google.golang.org/api v0.9.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg=
google.golang.org/api v0.13.0/go.mod h1:iLdEw5Ide6rF15KTC1Kkl0iskquN2gFfn9o9XIsbkAI=
google.golang.org/api v0.14.0/go.mod h1:iLdEw5Ide6rF15KTC1Kkl0iskquN2gFfn9o9XIsbkAI=
google.golang.org/api v0.15.0/go.mod h1:iLdEw5Ide6rF15KTC1Kkl0iskquN2gFfn9o9XIsbkAI=
google.golang.org/api v0.17.0/go.mod h1:BwFmGc8tA3vsd7r/7kR8DY7iEEGSU04BFxCo5jP/sfE=
google.golang.org/api v0.18.0/go.mod h1:BwFmGc8tA3vsd7r/7kR8DY7iEEGSU04BFxCo5jP/sfE=
google.golang.org/api v0.20.0/go.mod h1:BwFmGc8tA3vsd7r/7kR8DY7iEEGSU04BFxCo5jP/sfE=
google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/appengine v1.5.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/appengine v1.6.1/go.mod h1:i06prIuMbXzDqacNJfV5OdTW448YApPu5ww/cMBSeb0=
google.golang.org/appengine v1.6.5/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
google.golang.org/cloud v0.0.0-20151119220103-975617b05ea8/go.mod h1:0H1ncTHf11KCFhTc/+EFRbzSCOZx+VUbRMk55Yv5MYk=
google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
google.golang.org/genproto v0.0.0-20190418145605-e7d98fc518a7/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
google.golang.org/genproto v0.0.0-20190425155659-357c62f0e4bb/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
google.golang.org/genproto v0.0.0-20190502173448-54afdca5d873/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
google.golang.org/genproto v0.0.0-20190522204451-c2c4e71fbf69/go.mod h1:z3L6/3dTEVtUr6QSP8miRzeRqwQOioJ9I66odjN4I7s=
google.golang.org/genproto v0.0.0-20190801165951-fa694d86fc64/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
google.golang.org/genproto v0.0.0-20190911173649-1774047e7e51/go.mod h1:IbNlFCBrqXvoKpeg0TB2l7cyZUmoaFKYIwrEpbDKLA8=
google.golang.org/genproto v0.0.0-20191108220845-16a3f7862a1a/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
google.golang.org/genproto v0.0.0-20191115194625-c23dd37a84c9/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
google.golang.org/genproto v0.0.0-20191216164720-4f79533eabd1/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
google.golang.org/genproto v0.0.0-20191230161307-f3c370f40bfb/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
google.golang.org/genproto v0.0.0-20200115191322-ca5a22157cba/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
google.golang.org/genproto v0.0.0-20200117163144-32f20d992d24/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
google.golang.org/genproto v0.0.0-20200122232147-0452cf42e150/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
google.golang.org/genproto v0.0.0-20200204135345-fa8e72b47b90/go.mod h1:GmwEX6Z4W5gMy59cAlVYjN9JhxgbQH6Gn+gFDQe2lzA=
google.golang.org/genproto v0.0.0-20200212174721-66ed5ce911ce/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
google.golang.org/genproto v0.0.0-20200224152610-e50cd9704f63/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
google.golang.org/genproto v0.0.0-20200305110556-506484158171/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
google.golang.org/genproto v0.0.0-20201110150050-8816d57aaa9a/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
google.golang.org/grpc v0.0.0-20160317175043-d3ddb4469d5a/go.mod h1:yo6s7OP7yaDglbqo1J04qKzAhqBH6lvTonzMVmEdcZw=
google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
google.golang.org/grpc v1.21.0/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
google.golang.org/grpc v1.23.1/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
google.golang.org/grpc v1.24.0/go.mod h1:XDChyiUovWa60DnaeDeZmSW86xtLtjtZbwvSiRnRtcA=
google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
google.golang.org/grpc v1.26.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
google.golang.org/grpc v1.27.1/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
google.golang.org/grpc v1.30.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
google.golang.org/grpc v1.33.2/go.mod h1:JMHMWHQWaTccqQQlmk3MJZS+GWXOdAesneDmEnv2fbc=
google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
@ -889,79 +332,22 @@ google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzi
google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.24.0/go.mod h1:r/3tXBNzIEhYS9I1OUVjXDlt8tc493IdKGjtUeSXeh4=
google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
gopkg.in/airbrake/gobrake.v2 v2.0.9/go.mod h1:/h5ZAUhDkGaJfjzjKLSjv6zCL6O0LLBxU4K+aSYdM/U=
gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20141024133853-64131543e789/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/cheggaaa/pb.v1 v1.0.25/go.mod h1:V/YB90LKu/1FcN3WVnfiiE5oMCibMjukxqG/qStrOgw=
gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2/go.mod h1:Xk6kEKp8OKb+X14hQBKWaSkCsqBpgog8nAV2xsGOxlo=
gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
gopkg.in/natefinch/lumberjack.v2 v2.0.0/go.mod h1:l0ndWWf7gzL7RNwBG7wST/UCcT4T24xpD6X8LsfU/+k=
gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
gopkg.in/square/go-jose.v2 v2.2.2/go.mod h1:M9dMgbHiYLoDGQrXy7OpJDJWiKiU//h+vD76mk0e1AI=
gopkg.in/square/go-jose.v2 v2.3.1/go.mod h1:M9dMgbHiYLoDGQrXy7OpJDJWiKiU//h+vD76mk0e1AI=
gopkg.in/square/go-jose.v2 v2.5.1/go.mod h1:M9dMgbHiYLoDGQrXy7OpJDJWiKiU//h+vD76mk0e1AI=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gotest.tools v2.2.0+incompatible h1:VsBPFP1AI068pPrMxtb/S8Zkgf9xEmTLJjfM+P5UIEo=
gotest.tools v2.2.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw=
gotest.tools/v3 v3.0.2/go.mod h1:3SzNCllyD9/Y+b5r9JIKQ474KzkZyqLqEfYqMsX94Bk=
gotest.tools/v3 v3.0.3/go.mod h1:Z7Lb0S5l+klDB31fvDQX8ss/FlKDxtlFlw3Oa8Ymbl8=
honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
k8s.io/api v0.20.1/go.mod h1:KqwcCVogGxQY3nBlRpwt+wpAMF/KjaCc7RpywacvqUo=
k8s.io/api v0.20.4/go.mod h1:++lNL1AJMkDymriNniQsWRkMDzRaX2Y/POTUi8yvqYQ=
k8s.io/api v0.20.6/go.mod h1:X9e8Qag6JV/bL5G6bU8sdVRltWKmdHsFUGS3eVndqE8=
k8s.io/apimachinery v0.20.1/go.mod h1:WlLqWAHZGg07AeltaI0MV5uk1Omp8xaN0JGLY6gkRpU=
k8s.io/apimachinery v0.20.4/go.mod h1:WlLqWAHZGg07AeltaI0MV5uk1Omp8xaN0JGLY6gkRpU=
k8s.io/apimachinery v0.20.6/go.mod h1:ejZXtW1Ra6V1O5H8xPBGz+T3+4gfkTCeExAHKU57MAc=
k8s.io/apiserver v0.20.1/go.mod h1:ro5QHeQkgMS7ZGpvf4tSMx6bBOgPfE+f52KwvXfScaU=
k8s.io/apiserver v0.20.4/go.mod h1:Mc80thBKOyy7tbvFtB4kJv1kbdD0eIH8k8vianJcbFM=
k8s.io/apiserver v0.20.6/go.mod h1:QIJXNt6i6JB+0YQRNcS0hdRHJlMhflFmsBDeSgT1r8Q=
k8s.io/client-go v0.20.1/go.mod h1:/zcHdt1TeWSd5HoUe6elJmHSQ6uLLgp4bIJHVEuy+/Y=
k8s.io/client-go v0.20.4/go.mod h1:LiMv25ND1gLUdBeYxBIwKpkSC5IsozMMmOOeSJboP+k=
k8s.io/client-go v0.20.6/go.mod h1:nNQMnOvEUEsOzRRFIIkdmYOjAZrC8bgq0ExboWSU1I0=
k8s.io/component-base v0.20.1/go.mod h1:guxkoJnNoh8LNrbtiQOlyp2Y2XFCZQmrcg2n/DeYNLk=
k8s.io/component-base v0.20.4/go.mod h1:t4p9EdiagbVCJKrQ1RsA5/V4rFQNDfRlevJajlGwgjI=
k8s.io/component-base v0.20.6/go.mod h1:6f1MPBAeI+mvuts3sIdtpjljHWBQ2cIy38oBIWMYnrM=
k8s.io/cri-api v0.17.3/go.mod h1:X1sbHmuXhwaHs9xxYffLqJogVsnI+f6cPRcgPel7ywM=
k8s.io/cri-api v0.20.1/go.mod h1:2JRbKt+BFLTjtrILYVqQK5jqhI+XNdF6UiGMgczeBCI=
k8s.io/cri-api v0.20.4/go.mod h1:2JRbKt+BFLTjtrILYVqQK5jqhI+XNdF6UiGMgczeBCI=
k8s.io/cri-api v0.20.6/go.mod h1:ew44AjNXwyn1s0U4xCKGodU7J1HzBeZ1MpGrpa5r8Yc=
k8s.io/gengo v0.0.0-20200413195148-3a45101e95ac/go.mod h1:ezvh/TsK7cY6rbqRK0oQQ8IAqLxYwwyPxAX1Pzy0ii0=
k8s.io/klog/v2 v2.0.0/go.mod h1:PBfzABfn139FHAV07az/IF9Wp1bkk3vpT2XSJ76fSDE=
k8s.io/klog/v2 v2.4.0/go.mod h1:Od+F08eJP+W3HUb4pSrPpgp9DGU4GzlpG/TmITuYh/Y=
k8s.io/kube-openapi v0.0.0-20201113171705-d219536bb9fd/go.mod h1:WOJ3KddDSol4tAGcJo0Tvi+dK12EcqSLqcWsryKMpfM=
k8s.io/kubernetes v1.13.0/go.mod h1:ocZa8+6APFNC2tX1DZASIbocyYT5jHzqFVsY5aoB7Jk=
k8s.io/utils v0.0.0-20201110183641-67b214c5f920/go.mod h1:jPW/WVKK9YHAvNhRxK0md/EJ228hCsBRufyofKtW8HA=
rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.14/go.mod h1:LEScyzhFmoF5pso/YSeBstl57mOzx9xlU9n85RGrDQg=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.15/go.mod h1:LEScyzhFmoF5pso/YSeBstl57mOzx9xlU9n85RGrDQg=
sigs.k8s.io/structured-merge-diff/v4 v4.0.2/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=
sigs.k8s.io/structured-merge-diff/v4 v4.0.3/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=
sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc=

View File

@ -1,14 +1,18 @@
package chunked
import (
archivetar "archive/tar"
"bytes"
"encoding/binary"
"fmt"
"io"
"strconv"
"github.com/containerd/stargz-snapshotter/estargz"
"github.com/containers/storage/pkg/chunked/compressor"
"github.com/containers/storage/pkg/chunked/internal"
"github.com/klauspost/compress/zstd"
"github.com/klauspost/pgzip"
digest "github.com/opencontainers/go-digest"
"github.com/pkg/errors"
"github.com/vbatts/tar-split/archive/tar"
@ -50,25 +54,129 @@ func isZstdChunkedFrameMagic(data []byte) bool {
return bytes.Equal(internal.ZstdChunkedFrameMagic, data[:8])
}
func readEstargzChunkedManifest(blobStream ImageSourceSeekable, blobSize int64, annotations map[string]string) ([]byte, int64, error) {
// information on the format here https://github.com/containerd/stargz-snapshotter/blob/main/docs/stargz-estargz.md
footerSize := int64(51)
if blobSize <= footerSize {
return nil, 0, errors.New("blob too small")
}
chunk := ImageSourceChunk{
Offset: uint64(blobSize - footerSize),
Length: uint64(footerSize),
}
parts, errs, err := blobStream.GetBlobAt([]ImageSourceChunk{chunk})
if err != nil {
return nil, 0, err
}
var reader io.ReadCloser
select {
case r := <-parts:
reader = r
case err := <-errs:
return nil, 0, err
}
defer reader.Close()
footer := make([]byte, footerSize)
if _, err := io.ReadFull(reader, footer); err != nil {
return nil, 0, err
}
/* Read the ToC offset:
- 10 bytes gzip header
- 2 bytes XLEN (length of Extra field) = 26 (4 bytes header + 16 hex digits + len("STARGZ"))
- 2 bytes Extra: SI1 = 'S', SI2 = 'G'
- 2 bytes Extra: LEN = 22 (16 hex digits + len("STARGZ"))
- 22 bytes Extra: subfield = fmt.Sprintf("%016xSTARGZ", offsetOfTOC)
- 5 bytes flate header: BFINAL = 1(last block), BTYPE = 0(non-compressed block), LEN = 0
- 8 bytes gzip footer
*/
tocOffset, err := strconv.ParseInt(string(footer[16:16+22-6]), 16, 64)
if err != nil {
return nil, 0, errors.Wrap(err, "parse ToC offset")
}
size := int64(blobSize - footerSize - tocOffset)
// set a reasonable limit
if size > (1<<20)*50 {
return nil, 0, errors.New("manifest too big")
}
chunk = ImageSourceChunk{
Offset: uint64(tocOffset),
Length: uint64(size),
}
parts, errs, err = blobStream.GetBlobAt([]ImageSourceChunk{chunk})
if err != nil {
return nil, 0, err
}
var tocReader io.ReadCloser
select {
case r := <-parts:
tocReader = r
case err := <-errs:
return nil, 0, err
}
defer tocReader.Close()
r, err := pgzip.NewReader(tocReader)
if err != nil {
return nil, 0, err
}
defer r.Close()
aTar := archivetar.NewReader(r)
header, err := aTar.Next()
if err != nil {
return nil, 0, err
}
// set a reasonable limit
if header.Size > (1<<20)*50 {
return nil, 0, errors.New("manifest too big")
}
manifestUncompressed := make([]byte, header.Size)
if _, err := io.ReadFull(aTar, manifestUncompressed); err != nil {
return nil, 0, err
}
manifestDigester := digest.Canonical.Digester()
manifestChecksum := manifestDigester.Hash()
if _, err := manifestChecksum.Write(manifestUncompressed); err != nil {
return nil, 0, err
}
d, err := digest.Parse(annotations[estargz.TOCJSONDigestAnnotation])
if err != nil {
return nil, 0, err
}
if manifestDigester.Digest() != d {
return nil, 0, errors.New("invalid manifest checksum")
}
return manifestUncompressed, tocOffset, nil
}
// readZstdChunkedManifest reads the zstd:chunked manifest from the seekable stream blobStream. The blob total size must
// be specified.
// This function uses the io.containers.zstd-chunked. annotations when specified.
func readZstdChunkedManifest(blobStream ImageSourceSeekable, blobSize int64, annotations map[string]string) ([]byte, error) {
func readZstdChunkedManifest(blobStream ImageSourceSeekable, blobSize int64, annotations map[string]string) ([]byte, int64, error) {
footerSize := int64(internal.FooterSizeSupported)
if blobSize <= footerSize {
return nil, errors.New("blob too small")
return nil, 0, errors.New("blob too small")
}
manifestChecksumAnnotation := annotations[internal.ManifestChecksumKey]
if manifestChecksumAnnotation == "" {
return nil, fmt.Errorf("manifest checksum annotation %q not found", internal.ManifestChecksumKey)
return nil, 0, fmt.Errorf("manifest checksum annotation %q not found", internal.ManifestChecksumKey)
}
var offset, length, lengthUncompressed, manifestType uint64
if offsetMetadata := annotations[internal.ManifestInfoKey]; offsetMetadata != "" {
if _, err := fmt.Sscanf(offsetMetadata, "%d:%d:%d:%d", &offset, &length, &lengthUncompressed, &manifestType); err != nil {
return nil, err
return nil, 0, err
}
} else {
chunk := ImageSourceChunk{
@ -77,18 +185,18 @@ func readZstdChunkedManifest(blobStream ImageSourceSeekable, blobSize int64, ann
}
parts, errs, err := blobStream.GetBlobAt([]ImageSourceChunk{chunk})
if err != nil {
return nil, err
return nil, 0, err
}
var reader io.ReadCloser
select {
case r := <-parts:
reader = r
case err := <-errs:
return nil, err
return nil, 0, err
}
footer := make([]byte, footerSize)
if _, err := io.ReadFull(reader, footer); err != nil {
return nil, err
return nil, 0, err
}
offset = binary.LittleEndian.Uint64(footer[0:8])
@ -96,20 +204,20 @@ func readZstdChunkedManifest(blobStream ImageSourceSeekable, blobSize int64, ann
lengthUncompressed = binary.LittleEndian.Uint64(footer[16:24])
manifestType = binary.LittleEndian.Uint64(footer[24:32])
if !isZstdChunkedFrameMagic(footer[32:40]) {
return nil, errors.New("invalid magic number")
return nil, 0, errors.New("invalid magic number")
}
}
if manifestType != internal.ManifestTypeCRFS {
return nil, errors.New("invalid manifest type")
return nil, 0, errors.New("invalid manifest type")
}
// set a reasonable limit
if length > (1<<20)*50 {
return nil, errors.New("manifest too big")
return nil, 0, errors.New("manifest too big")
}
if lengthUncompressed > (1<<20)*50 {
return nil, errors.New("manifest too big")
return nil, 0, errors.New("manifest too big")
}
chunk := ImageSourceChunk{
@ -119,47 +227,47 @@ func readZstdChunkedManifest(blobStream ImageSourceSeekable, blobSize int64, ann
parts, errs, err := blobStream.GetBlobAt([]ImageSourceChunk{chunk})
if err != nil {
return nil, err
return nil, 0, err
}
var reader io.ReadCloser
select {
case r := <-parts:
reader = r
case err := <-errs:
return nil, err
return nil, 0, err
}
manifest := make([]byte, length)
if _, err := io.ReadFull(reader, manifest); err != nil {
return nil, err
return nil, 0, err
}
manifestDigester := digest.Canonical.Digester()
manifestChecksum := manifestDigester.Hash()
if _, err := manifestChecksum.Write(manifest); err != nil {
return nil, err
return nil, 0, err
}
d, err := digest.Parse(manifestChecksumAnnotation)
if err != nil {
return nil, err
return nil, 0, err
}
if manifestDigester.Digest() != d {
return nil, errors.New("invalid manifest checksum")
return nil, 0, errors.New("invalid manifest checksum")
}
decoder, err := zstd.NewReader(nil)
if err != nil {
return nil, err
return nil, 0, err
}
defer decoder.Close()
b := make([]byte, 0, lengthUncompressed)
if decoded, err := decoder.DecodeAll(manifest, b); err == nil {
return decoded, nil
return decoded, int64(offset), nil
}
return manifest, nil
return manifest, int64(offset), nil
}
// ZstdCompressor is a CompressorFunc for the zstd compression algorithm.

View File

@ -50,7 +50,7 @@ func writeZstdChunkedStream(destFile io.Writer, outMetadata map[string]string, r
return offset, nil
}
var metadata []internal.ZstdFileMetadata
var metadata []internal.FileMetadata
for {
hdr, err := tr.Next()
if err != nil {
@ -112,7 +112,7 @@ func writeZstdChunkedStream(destFile io.Writer, outMetadata map[string]string, r
for k, v := range hdr.Xattrs {
xattrs[k] = base64.StdEncoding.EncodeToString([]byte(v))
}
m := internal.ZstdFileMetadata{
m := internal.FileMetadata{
Type: typ,
Name: hdr.Name,
Linkname: hdr.Linkname,

View File

@ -17,12 +17,12 @@ import (
"github.com/opencontainers/go-digest"
)
type ZstdTOC struct {
Version int `json:"version"`
Entries []ZstdFileMetadata `json:"entries"`
type TOC struct {
Version int `json:"version"`
Entries []FileMetadata `json:"entries"`
}
type ZstdFileMetadata struct {
type FileMetadata struct {
Type string `json:"type"`
Name string `json:"name"`
Linkname string `json:"linkName,omitempty"`
@ -114,11 +114,11 @@ func appendZstdSkippableFrame(dest io.Writer, data []byte) error {
return nil
}
func WriteZstdChunkedManifest(dest io.Writer, outMetadata map[string]string, offset uint64, metadata []ZstdFileMetadata, level int) error {
func WriteZstdChunkedManifest(dest io.Writer, outMetadata map[string]string, offset uint64, metadata []FileMetadata, level int) error {
// 8 is the size of the zstd skippable frame header + the frame size
manifestOffset := offset + 8
toc := ZstdTOC{
toc := TOC{
Version: 1,
Entries: metadata,
}

View File

@ -10,19 +10,23 @@ import (
"io/ioutil"
"os"
"path/filepath"
"reflect"
"sort"
"strings"
"syscall"
"time"
"github.com/containerd/stargz-snapshotter/estargz"
storage "github.com/containers/storage"
graphdriver "github.com/containers/storage/drivers"
driversCopy "github.com/containers/storage/drivers/copy"
"github.com/containers/storage/pkg/archive"
"github.com/containers/storage/pkg/chunked/internal"
"github.com/containers/storage/pkg/idtools"
"github.com/containers/storage/pkg/system"
"github.com/containers/storage/types"
"github.com/klauspost/compress/zstd"
"github.com/klauspost/pgzip"
digest "github.com/opencontainers/go-digest"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
@ -35,13 +39,22 @@ const (
newFileFlags = (unix.O_CREAT | unix.O_TRUNC | unix.O_EXCL | unix.O_WRONLY)
containersOverrideXattr = "user.containers.override_stat"
bigDataKey = "zstd-chunked-manifest"
fileTypeZstdChunked = iota
fileTypeEstargz = iota
)
type chunkedZstdDiffer struct {
type compressedFileType int
type chunkedDiffer struct {
stream ImageSourceSeekable
manifest []byte
layersMetadata map[string][]internal.ZstdFileMetadata
layersMetadata map[string][]internal.FileMetadata
layersTarget map[string]string
tocOffset int64
fileType compressedFileType
gzipReader *pgzip.Reader
}
func timeToTimespec(time time.Time) (ts unix.Timespec) {
@ -71,7 +84,10 @@ func copyFileContent(srcFd int, destFile string, dirfd int, mode os.FileMode, us
defer destDir.Close()
doLink := func() error {
return unix.Linkat(srcFd, "", int(destDir.Fd()), destBase, unix.AT_EMPTY_PATH)
// Using unix.AT_EMPTY_PATH requires CAP_DAC_READ_SEARCH while this variant that uses
// /proc/self/fd doesn't and can be used with rootless.
srcPath := fmt.Sprintf("/proc/self/fd/%d", srcFd)
return unix.Linkat(unix.AT_FDCWD, srcPath, int(destDir.Fd()), destBase, unix.AT_SYMLINK_FOLLOW)
}
err := doLink()
@ -101,26 +117,28 @@ func copyFileContent(srcFd int, destFile string, dirfd int, mode os.FileMode, us
return dstFile, st.Size(), err
}
func prepareOtherLayersCache(layersMetadata map[string][]internal.ZstdFileMetadata) map[string]map[string]*internal.ZstdFileMetadata {
maps := make(map[string]map[string]*internal.ZstdFileMetadata)
func prepareOtherLayersCache(layersMetadata map[string][]internal.FileMetadata) map[string]map[string][]*internal.FileMetadata {
maps := make(map[string]map[string][]*internal.FileMetadata)
for layerID, v := range layersMetadata {
r := make(map[string]*internal.ZstdFileMetadata)
r := make(map[string][]*internal.FileMetadata)
for i := range v {
r[v[i].Digest] = &v[i]
if v[i].Digest != "" {
r[v[i].Digest] = append(r[v[i].Digest], &v[i])
}
}
maps[layerID] = r
}
return maps
}
func getLayersCache(store storage.Store) (map[string][]internal.ZstdFileMetadata, map[string]string, error) {
func getLayersCache(store storage.Store) (map[string][]internal.FileMetadata, map[string]string, error) {
allLayers, err := store.Layers()
if err != nil {
return nil, nil, err
}
layersMetadata := make(map[string][]internal.ZstdFileMetadata)
layersMetadata := make(map[string][]internal.FileMetadata)
layersTarget := make(map[string]string)
for _, r := range allLayers {
manifestReader, err := store.LayerBigData(r.ID, bigDataKey)
@ -132,7 +150,7 @@ func getLayersCache(store storage.Store) (map[string][]internal.ZstdFileMetadata
if err != nil {
return nil, nil, err
}
var toc internal.ZstdTOC
var toc internal.TOC
if err := json.Unmarshal(manifest, &toc); err != nil {
continue
}
@ -152,11 +170,14 @@ func GetDiffer(ctx context.Context, store storage.Store, blobSize int64, annotat
if _, ok := annotations[internal.ManifestChecksumKey]; ok {
return makeZstdChunkedDiffer(ctx, store, blobSize, annotations, iss)
}
if _, ok := annotations[estargz.TOCJSONDigestAnnotation]; ok {
return makeEstargzChunkedDiffer(ctx, store, blobSize, annotations, iss)
}
return nil, errors.New("blob type not supported for partial retrieval")
}
func makeZstdChunkedDiffer(ctx context.Context, store storage.Store, blobSize int64, annotations map[string]string, iss ImageSourceSeekable) (*chunkedZstdDiffer, error) {
manifest, err := readZstdChunkedManifest(iss, blobSize, annotations)
func makeZstdChunkedDiffer(ctx context.Context, store storage.Store, blobSize int64, annotations map[string]string, iss ImageSourceSeekable) (*chunkedDiffer, error) {
manifest, tocOffset, err := readZstdChunkedManifest(iss, blobSize, annotations)
if err != nil {
return nil, err
}
@ -165,11 +186,33 @@ func makeZstdChunkedDiffer(ctx context.Context, store storage.Store, blobSize in
return nil, err
}
return &chunkedZstdDiffer{
return &chunkedDiffer{
stream: iss,
manifest: manifest,
layersMetadata: layersMetadata,
layersTarget: layersTarget,
tocOffset: tocOffset,
fileType: fileTypeZstdChunked,
}, nil
}
func makeEstargzChunkedDiffer(ctx context.Context, store storage.Store, blobSize int64, annotations map[string]string, iss ImageSourceSeekable) (*chunkedDiffer, error) {
manifest, tocOffset, err := readEstargzChunkedManifest(iss, blobSize, annotations)
if err != nil {
return nil, err
}
layersMetadata, layersTarget, err := getLayersCache(store)
if err != nil {
return nil, err
}
return &chunkedDiffer{
stream: iss,
manifest: manifest,
layersMetadata: layersMetadata,
layersTarget: layersTarget,
tocOffset: tocOffset,
fileType: fileTypeEstargz,
}, nil
}
@ -179,7 +222,7 @@ func makeZstdChunkedDiffer(ctx context.Context, store storage.Store, blobSize in
// otherFile contains the metadata for the file.
// dirfd is an open file descriptor to the destination root directory.
// useHardLinks defines whether the deduplication can be performed using hard links.
func copyFileFromOtherLayer(file internal.ZstdFileMetadata, source string, otherFile *internal.ZstdFileMetadata, dirfd int, useHardLinks bool) (bool, *os.File, int64, error) {
func copyFileFromOtherLayer(file *internal.FileMetadata, source string, otherFile *internal.FileMetadata, dirfd int, useHardLinks bool) (bool, *os.File, int64, error) {
srcDirfd, err := unix.Open(source, unix.O_RDONLY, 0)
if err != nil {
return false, nil, 0, err
@ -199,29 +242,97 @@ func copyFileFromOtherLayer(file internal.ZstdFileMetadata, source string, other
return true, dstFile, written, err
}
// canDedupMetadataWithHardLink says whether it is possible to deduplicate file with otherFile.
// It checks that the two files have the same UID, GID, file mode and xattrs.
func canDedupMetadataWithHardLink(file *internal.FileMetadata, otherFile *internal.FileMetadata) bool {
if file.UID != otherFile.UID {
return false
}
if file.GID != otherFile.GID {
return false
}
if file.Mode != otherFile.Mode {
return false
}
if !reflect.DeepEqual(file.Xattrs, otherFile.Xattrs) {
return false
}
return true
}
// canDedupFileWithHardLink checks if the specified file can be deduplicated by an
// open file, given its descriptor and stat data.
func canDedupFileWithHardLink(file *internal.FileMetadata, fd int, s os.FileInfo) bool {
st, ok := s.Sys().(*syscall.Stat_t)
if !ok {
return false
}
path := fmt.Sprintf("/proc/self/fd/%d", fd)
listXattrs, err := system.Llistxattr(path)
if err != nil {
return false
}
xattrsToIgnore := map[string]interface{}{
"security.selinux": true,
}
xattrs := make(map[string]string)
for _, x := range listXattrs {
v, err := system.Lgetxattr(path, x)
if err != nil {
return false
}
if _, found := xattrsToIgnore[x]; found {
continue
}
xattrs[x] = string(v)
}
// fill only the attributes used by canDedupMetadataWithHardLink.
otherFile := internal.FileMetadata{
UID: int(st.Uid),
GID: int(st.Gid),
Mode: int64(st.Mode),
Xattrs: xattrs,
}
return canDedupMetadataWithHardLink(file, &otherFile)
}
// findFileInOtherLayers finds the specified file in other layers.
// file is the file to look for.
// dirfd is an open file descriptor to the checkout root directory.
// layersMetadata contains the metadata for each layer in the storage.
// layersTarget maps each layer to its checkout on disk.
// useHardLinks defines whether the deduplication can be performed using hard links.
func findFileInOtherLayers(file internal.ZstdFileMetadata, dirfd int, layersMetadata map[string]map[string]*internal.ZstdFileMetadata, layersTarget map[string]string, useHardLinks bool) (bool, *os.File, int64, error) {
func findFileInOtherLayers(file *internal.FileMetadata, dirfd int, layersMetadata map[string]map[string][]*internal.FileMetadata, layersTarget map[string]string, useHardLinks bool) (bool, *os.File, int64, error) {
// this is ugly, needs to be indexed
for layerID, checksums := range layersMetadata {
m, found := checksums[file.Digest]
if !found {
continue
}
source, ok := layersTarget[layerID]
if !ok {
continue
}
found, dstFile, written, err := copyFileFromOtherLayer(file, source, m, dirfd, useHardLinks)
if found && err == nil {
return found, dstFile, written, err
files, found := checksums[file.Digest]
if !found {
continue
}
for _, candidate := range files {
// check if it is a valid candidate to dedup file
if useHardLinks && !canDedupMetadataWithHardLink(file, candidate) {
continue
}
found, dstFile, written, err := copyFileFromOtherLayer(file, source, candidate, dirfd, useHardLinks)
if found && err == nil {
return found, dstFile, written, err
}
}
}
// If hard links deduplication was used and it has failed, try again without hard links.
if useHardLinks {
return findFileInOtherLayers(file, dirfd, layersMetadata, layersTarget, false)
}
return false, nil, 0, nil
}
@ -240,7 +351,7 @@ func getFileDigest(f *os.File) (digest.Digest, error) {
// file is the file to look for.
// dirfd is an open fd to the destination checkout.
// useHardLinks defines whether the deduplication can be performed using hard links.
func findFileOnTheHost(file internal.ZstdFileMetadata, dirfd int, useHardLinks bool) (bool, *os.File, int64, error) {
func findFileOnTheHost(file *internal.FileMetadata, dirfd int, useHardLinks bool) (bool, *os.File, int64, error) {
sourceFile := filepath.Clean(filepath.Join("/", file.Name))
if !strings.HasPrefix(sourceFile, "/usr/") {
// limit host deduplication to files under /usr.
@ -278,6 +389,9 @@ func findFileOnTheHost(file internal.ZstdFileMetadata, dirfd int, useHardLinks b
return false, nil, 0, nil
}
// check if the open file can be deduplicated with hard links
useHardLinks = useHardLinks && canDedupFileWithHardLink(file, fd, st)
dstFile, written, err := copyFileContent(fd, file.Name, dirfd, 0, useHardLinks)
if err != nil {
return false, nil, 0, nil
@ -300,7 +414,7 @@ func findFileOnTheHost(file internal.ZstdFileMetadata, dirfd int, useHardLinks b
return true, dstFile, written, nil
}
func maybeDoIDRemap(manifest []internal.ZstdFileMetadata, options *archive.TarOptions) error {
func maybeDoIDRemap(manifest []internal.FileMetadata, options *archive.TarOptions) error {
if options.ChownOpts == nil && len(options.UIDMaps) == 0 || len(options.GIDMaps) == 0 {
return nil
}
@ -327,7 +441,7 @@ func maybeDoIDRemap(manifest []internal.ZstdFileMetadata, options *archive.TarOp
}
type missingFile struct {
File *internal.ZstdFileMetadata
File *internal.FileMetadata
Gap int64
}
@ -341,7 +455,7 @@ type missingChunk struct {
}
// setFileAttrs sets the file attributes for file given metadata
func setFileAttrs(file *os.File, mode os.FileMode, metadata *internal.ZstdFileMetadata, options *archive.TarOptions) error {
func setFileAttrs(file *os.File, mode os.FileMode, metadata *internal.FileMetadata, options *archive.TarOptions) error {
if file == nil || file.Fd() < 0 {
return errors.Errorf("invalid file")
}
@ -401,7 +515,7 @@ func openFileUnderRoot(name string, dirfd int, flags uint64, mode os.FileMode) (
return os.NewFile(uintptr(fd), name), nil
}
func createFileFromZstdStream(dest string, dirfd int, reader io.Reader, mode os.FileMode, metadata *internal.ZstdFileMetadata, options *archive.TarOptions) (err error) {
func (c *chunkedDiffer) createFileFromCompressedStream(dest string, dirfd int, reader io.Reader, mode os.FileMode, metadata *internal.FileMetadata, options *archive.TarOptions) (err error) {
file, err := openFileUnderRoot(metadata.Name, dirfd, newFileFlags, 0)
if err != nil {
return err
@ -413,18 +527,48 @@ func createFileFromZstdStream(dest string, dirfd int, reader io.Reader, mode os.
}
}()
z, err := zstd.NewReader(reader)
if err != nil {
return err
}
defer z.Close()
digester := digest.Canonical.Digester()
checksum := digester.Hash()
_, err = z.WriteTo(io.MultiWriter(file, checksum))
if err != nil {
return err
to := io.MultiWriter(file, checksum)
switch c.fileType {
case fileTypeZstdChunked:
z, err := zstd.NewReader(reader)
if err != nil {
return err
}
defer z.Close()
if _, err := io.Copy(to, io.LimitReader(z, metadata.Size)); err != nil {
return err
}
if _, err := io.Copy(ioutil.Discard, reader); err != nil {
return err
}
case fileTypeEstargz:
if c.gzipReader == nil {
r, err := pgzip.NewReader(reader)
if err != nil {
return err
}
c.gzipReader = r
} else {
if err := c.gzipReader.Reset(reader); err != nil {
return err
}
}
defer c.gzipReader.Close()
if _, err := io.Copy(to, io.LimitReader(c.gzipReader, metadata.Size)); err != nil {
return err
}
if _, err := io.Copy(ioutil.Discard, reader); err != nil {
return err
}
default:
return fmt.Errorf("unknown file type %q", c.fileType)
}
manifestChecksum, err := digest.Parse(metadata.Digest)
if err != nil {
return err
@ -435,7 +579,7 @@ func createFileFromZstdStream(dest string, dirfd int, reader io.Reader, mode os.
return setFileAttrs(file, mode, metadata, options)
}
func storeMissingFiles(streams chan io.ReadCloser, errs chan error, dest string, dirfd int, missingChunks []missingChunk, options *archive.TarOptions) error {
func (c *chunkedDiffer) storeMissingFiles(streams chan io.ReadCloser, errs chan error, dest string, dirfd int, missingChunks []missingChunk, options *archive.TarOptions) error {
for mc := 0; ; mc++ {
var part io.ReadCloser
select {
@ -448,9 +592,10 @@ func storeMissingFiles(streams chan io.ReadCloser, errs chan error, dest string,
if mc == len(missingChunks) {
break
}
return errors.Errorf("invalid stream returned %d %d", mc, len(missingChunks))
return errors.Errorf("invalid stream returned")
}
if mc == len(missingChunks) {
part.Close()
return errors.Errorf("too many chunks returned")
}
@ -459,6 +604,7 @@ func storeMissingFiles(streams chan io.ReadCloser, errs chan error, dest string,
limitReader := io.LimitReader(part, mf.Gap)
_, err := io.Copy(ioutil.Discard, limitReader)
if err != nil {
part.Close()
return err
}
continue
@ -466,7 +612,7 @@ func storeMissingFiles(streams chan io.ReadCloser, errs chan error, dest string,
limitReader := io.LimitReader(part, mf.Length())
if err := createFileFromZstdStream(dest, dirfd, limitReader, os.FileMode(mf.File.Mode), mf.File, options); err != nil {
if err := c.createFileFromCompressedStream(dest, dirfd, limitReader, os.FileMode(mf.File.Mode), mf.File, options); err != nil {
part.Close()
return err
}
@ -505,18 +651,20 @@ func mergeMissingChunks(missingChunks []missingChunk, target int) []missingChunk
newMissingChunks = append(newMissingChunks, missingChunks[i])
} else {
prev := &newMissingChunks[len(newMissingChunks)-1]
gapFile := missingFile{
Gap: int64(gap),
}
prev.RawChunk.Length += uint64(gap) + missingChunks[i].RawChunk.Length
prev.Files = append(append(prev.Files, gapFile), missingChunks[i].Files...)
if gap > 0 {
gapFile := missingFile{
Gap: int64(gap),
}
prev.Files = append(prev.Files, gapFile)
}
prev.Files = append(prev.Files, missingChunks[i].Files...)
}
}
return newMissingChunks
}
func retrieveMissingFiles(input *chunkedZstdDiffer, dest string, dirfd int, missingChunks []missingChunk, options *archive.TarOptions) error {
func (c *chunkedDiffer) retrieveMissingFiles(dest string, dirfd int, missingChunks []missingChunk, options *archive.TarOptions) error {
var chunksToRequest []ImageSourceChunk
for _, c := range missingChunks {
chunksToRequest = append(chunksToRequest, c.RawChunk)
@ -527,7 +675,7 @@ func retrieveMissingFiles(input *chunkedZstdDiffer, dest string, dirfd int, miss
var err error
var errs chan error
for {
streams, errs, err = input.stream.GetBlobAt(chunksToRequest)
streams, errs, err = c.stream.GetBlobAt(chunksToRequest)
if err == nil {
break
}
@ -546,13 +694,13 @@ func retrieveMissingFiles(input *chunkedZstdDiffer, dest string, dirfd int, miss
return err
}
if err := storeMissingFiles(streams, errs, dest, dirfd, missingChunks, options); err != nil {
if err := c.storeMissingFiles(streams, errs, dest, dirfd, missingChunks, options); err != nil {
return err
}
return nil
}
func safeMkdir(dirfd int, mode os.FileMode, metadata *internal.ZstdFileMetadata, options *archive.TarOptions) error {
func safeMkdir(dirfd int, mode os.FileMode, metadata *internal.FileMetadata, options *archive.TarOptions) error {
parent := filepath.Dir(metadata.Name)
base := filepath.Base(metadata.Name)
@ -581,7 +729,7 @@ func safeMkdir(dirfd int, mode os.FileMode, metadata *internal.ZstdFileMetadata,
return setFileAttrs(file, mode, metadata, options)
}
func safeLink(dirfd int, mode os.FileMode, metadata *internal.ZstdFileMetadata, options *archive.TarOptions) error {
func safeLink(dirfd int, mode os.FileMode, metadata *internal.FileMetadata, options *archive.TarOptions) error {
sourceFile, err := openFileUnderRoot(metadata.Linkname, dirfd, unix.O_RDONLY, 0)
if err != nil {
return err
@ -613,7 +761,7 @@ func safeLink(dirfd int, mode os.FileMode, metadata *internal.ZstdFileMetadata,
return setFileAttrs(newFile, mode, metadata, options)
}
func safeSymlink(dirfd int, mode os.FileMode, metadata *internal.ZstdFileMetadata, options *archive.TarOptions) error {
func safeSymlink(dirfd int, mode os.FileMode, metadata *internal.FileMetadata, options *archive.TarOptions) error {
destDir, destBase := filepath.Dir(metadata.Name), filepath.Base(metadata.Name)
destDirFd := dirfd
if destDir != "." {
@ -691,7 +839,7 @@ type hardLinkToCreate struct {
dest string
dirfd int
mode os.FileMode
metadata *internal.ZstdFileMetadata
metadata *internal.FileMetadata
}
func parseBooleanPullOption(storeOpts *storage.StoreOptions, name string, def bool) bool {
@ -701,12 +849,12 @@ func parseBooleanPullOption(storeOpts *storage.StoreOptions, name string, def bo
return def
}
func (d *chunkedZstdDiffer) ApplyDiff(dest string, options *archive.TarOptions) (graphdriver.DriverWithDifferOutput, error) {
func (c *chunkedDiffer) ApplyDiff(dest string, options *archive.TarOptions) (graphdriver.DriverWithDifferOutput, error) {
bigData := map[string][]byte{
bigDataKey: d.manifest,
bigDataKey: c.manifest,
}
output := graphdriver.DriverWithDifferOutput{
Differ: d,
Differ: c,
BigData: bigData,
}
@ -726,30 +874,21 @@ func (d *chunkedZstdDiffer) ApplyDiff(dest string, options *archive.TarOptions)
useHardLinks := parseBooleanPullOption(&storeOpts, "use_hard_links", false)
// Generate the manifest
var toc internal.ZstdTOC
if err := json.Unmarshal(d.manifest, &toc); err != nil {
var toc internal.TOC
if err := json.Unmarshal(c.manifest, &toc); err != nil {
return output, err
}
whiteoutConverter := archive.GetWhiteoutConverter(options.WhiteoutFormat, options.WhiteoutData)
var missingChunks []missingChunk
var mergedEntries []internal.ZstdFileMetadata
if err := maybeDoIDRemap(toc.Entries, options); err != nil {
mergedEntries, err := c.mergeTocEntries(c.fileType, toc.Entries)
if err != nil {
return output, err
}
for _, e := range toc.Entries {
if e.Type == TypeChunk {
l := len(mergedEntries)
if l == 0 || mergedEntries[l-1].Type != TypeReg {
return output, errors.New("chunk type without a regular file")
}
mergedEntries[l-1].EndOffset = e.EndOffset
continue
}
mergedEntries = append(mergedEntries, e)
if err := maybeDoIDRemap(mergedEntries, options); err != nil {
return output, err
}
if options.ForceMask != nil {
@ -768,7 +907,7 @@ func (d *chunkedZstdDiffer) ApplyDiff(dest string, options *archive.TarOptions)
}
defer unix.Close(dirfd)
otherLayersCache := prepareOtherLayersCache(d.layersMetadata)
otherLayersCache := prepareOtherLayersCache(c.layersMetadata)
// hardlinks can point to missing files. So create them after all files
// are retrieved
@ -870,7 +1009,7 @@ func (d *chunkedZstdDiffer) ApplyDiff(dest string, options *archive.TarOptions)
totalChunksSize += r.Size
found, dstFile, _, err := findFileInOtherLayers(r, dirfd, otherLayersCache, d.layersTarget, useHardLinks)
found, dstFile, _, err := findFileInOtherLayers(&r, dirfd, otherLayersCache, c.layersTarget, useHardLinks)
if err != nil {
return output, err
}
@ -886,7 +1025,7 @@ func (d *chunkedZstdDiffer) ApplyDiff(dest string, options *archive.TarOptions)
}
if enableHostDedup {
found, dstFile, _, err = findFileOnTheHost(r, dirfd, useHardLinks)
found, dstFile, _, err = findFileOnTheHost(&r, dirfd, useHardLinks)
if err != nil {
return output, err
}
@ -908,9 +1047,11 @@ func (d *chunkedZstdDiffer) ApplyDiff(dest string, options *archive.TarOptions)
Offset: uint64(r.Offset),
Length: uint64(r.EndOffset - r.Offset),
}
file := missingFile{
File: &toc.Entries[i],
File: &mergedEntries[i],
}
missingChunks = append(missingChunks, missingChunk{
RawChunk: rawChunk,
Files: []missingFile{
@ -922,7 +1063,7 @@ func (d *chunkedZstdDiffer) ApplyDiff(dest string, options *archive.TarOptions)
// There are some missing files. Prepare a multirange request for the missing chunks.
if len(missingChunks) > 0 {
missingChunks = mergeMissingChunks(missingChunks, maxNumberMissingChunks)
if err := retrieveMissingFiles(d, dest, dirfd, missingChunks, options); err != nil {
if err := c.retrieveMissingFiles(dest, dirfd, missingChunks, options); err != nil {
return output, err
}
}
@ -938,3 +1079,37 @@ func (d *chunkedZstdDiffer) ApplyDiff(dest string, options *archive.TarOptions)
}
return output, nil
}
func (c *chunkedDiffer) mergeTocEntries(fileType compressedFileType, entries []internal.FileMetadata) ([]internal.FileMetadata, error) {
var mergedEntries []internal.FileMetadata
var prevEntry *internal.FileMetadata
for _, entry := range entries {
e := entry
// ignore the metadata files for the estargz format.
if fileType == fileTypeEstargz && (e.Name == estargz.PrefetchLandmark || e.Name == estargz.NoPrefetchLandmark || e.Name == estargz.TOCTarName) {
continue
}
if e.Type == TypeChunk {
if prevEntry == nil || prevEntry.Type != TypeReg {
return nil, errors.New("chunk type without a regular file")
}
prevEntry.EndOffset = e.EndOffset
continue
}
mergedEntries = append(mergedEntries, e)
prevEntry = &e
}
// stargz/estargz doesn't store EndOffset so let's calculate it here
lastOffset := c.tocOffset
for i := len(mergedEntries) - 1; i >= 0; i-- {
if mergedEntries[i].EndOffset == 0 {
mergedEntries[i].EndOffset = lastOffset
}
if mergedEntries[i].Offset != 0 {
lastOffset = mergedEntries[i].Offset
}
}
return mergedEntries, nil
}

View File

@ -93,6 +93,8 @@ type OverlayOptionsConfig struct {
MountProgram string `toml:"mount_program"`
// Size
Size string `toml:"size"`
// Inodes is used to set a maximum inodes of the container image.
Inodes string `toml:"inodes"`
// Do not create a bind mount on the storage home
SkipMountHome string `toml:"skip_mount_home"`
// ForceMask indicates the permissions mask (e.g. "0755") to use for new
@ -296,6 +298,9 @@ func GetGraphDriverOptions(driverName string, options OptionsConfig) []string {
} else if options.Size != "" {
doptions = append(doptions, fmt.Sprintf("%s.size=%s", driverName, options.Size))
}
if options.Overlay.Inodes != "" {
doptions = append(doptions, fmt.Sprintf("%s.inodes=%s", driverName, options.Overlay.Inodes))
}
if options.Overlay.SkipMountHome != "" {
doptions = append(doptions, fmt.Sprintf("%s.skip_mount_home=%s", driverName, options.Overlay.SkipMountHome))
} else if options.SkipMountHome != "" {

View File

@ -3054,10 +3054,15 @@ func (s *store) Layers() ([]Layer, error) {
if err != nil {
return nil, err
}
if err := lstore.LoadLocked(); err != nil {
return nil, err
}
layers, err := lstore.Layers()
layers, err := func() ([]Layer, error) {
lstore.Lock()
defer lstore.Unlock()
if err := lstore.Load(); err != nil {
return nil, err
}
return lstore.Layers()
}()
if err != nil {
return nil, err
}

View File

@ -1,16 +0,0 @@
cmd/snappytool/snappytool
testdata/bench
# These explicitly listed benchmark data files are for an obsolete version of
# snappy_test.go.
testdata/alice29.txt
testdata/asyoulik.txt
testdata/fireworks.jpeg
testdata/geo.protodata
testdata/html
testdata/html_x_4
testdata/kppkn.gtb
testdata/lcet10.txt
testdata/paper-100k.pdf
testdata/plrabn12.txt
testdata/urls.10K

View File

@ -1,17 +0,0 @@
# This is the official list of Snappy-Go authors for copyright purposes.
# This file is distinct from the CONTRIBUTORS files.
# See the latter for an explanation.
# Names should be added to this file as
# Name or Organization <email address>
# The email address is not required for organizations.
# Please keep the list sorted.
Amazon.com, Inc
Damian Gryski <dgryski@gmail.com>
Google Inc.
Jan Mercl <0xjnml@gmail.com>
Klaus Post <klauspost@gmail.com>
Rodolfo Carvalho <rhcarvalho@gmail.com>
Sebastien Binet <seb.binet@gmail.com>

View File

@ -1,39 +0,0 @@
# This is the official list of people who can contribute
# (and typically have contributed) code to the Snappy-Go repository.
# The AUTHORS file lists the copyright holders; this file
# lists people. For example, Google employees are listed here
# but not in AUTHORS, because Google holds the copyright.
#
# The submission process automatically checks to make sure
# that people submitting code are listed in this file (by email address).
#
# Names should be added to this file only after verifying that
# the individual or the individual's organization has agreed to
# the appropriate Contributor License Agreement, found here:
#
# http://code.google.com/legal/individual-cla-v1.0.html
# http://code.google.com/legal/corporate-cla-v1.0.html
#
# The agreement for individuals can be filled out on the web.
#
# When adding J Random Contributor's name to this file,
# either J's name or J's organization's name should be
# added to the AUTHORS file, depending on whether the
# individual or corporate CLA was used.
# Names should be added to this file like so:
# Name <email address>
# Please keep the list sorted.
Damian Gryski <dgryski@gmail.com>
Jan Mercl <0xjnml@gmail.com>
Jonathan Swinney <jswinney@amazon.com>
Kai Backman <kaib@golang.org>
Klaus Post <klauspost@gmail.com>
Marc-Antoine Ruel <maruel@chromium.org>
Nigel Tao <nigeltao@golang.org>
Rob Pike <r@golang.org>
Rodolfo Carvalho <rhcarvalho@gmail.com>
Russ Cox <rsc@golang.org>
Sebastien Binet <seb.binet@gmail.com>

View File

@ -1,107 +0,0 @@
The Snappy compression format in the Go programming language.
To download and install from source:
$ go get github.com/golang/snappy
Unless otherwise noted, the Snappy-Go source files are distributed
under the BSD-style license found in the LICENSE file.
Benchmarks.
The golang/snappy benchmarks include compressing (Z) and decompressing (U) ten
or so files, the same set used by the C++ Snappy code (github.com/google/snappy
and note the "google", not "golang"). On an "Intel(R) Core(TM) i7-3770 CPU @
3.40GHz", Go's GOARCH=amd64 numbers as of 2016-05-29:
"go test -test.bench=."
_UFlat0-8 2.19GB/s ± 0% html
_UFlat1-8 1.41GB/s ± 0% urls
_UFlat2-8 23.5GB/s ± 2% jpg
_UFlat3-8 1.91GB/s ± 0% jpg_200
_UFlat4-8 14.0GB/s ± 1% pdf
_UFlat5-8 1.97GB/s ± 0% html4
_UFlat6-8 814MB/s ± 0% txt1
_UFlat7-8 785MB/s ± 0% txt2
_UFlat8-8 857MB/s ± 0% txt3
_UFlat9-8 719MB/s ± 1% txt4
_UFlat10-8 2.84GB/s ± 0% pb
_UFlat11-8 1.05GB/s ± 0% gaviota
_ZFlat0-8 1.04GB/s ± 0% html
_ZFlat1-8 534MB/s ± 0% urls
_ZFlat2-8 15.7GB/s ± 1% jpg
_ZFlat3-8 740MB/s ± 3% jpg_200
_ZFlat4-8 9.20GB/s ± 1% pdf
_ZFlat5-8 991MB/s ± 0% html4
_ZFlat6-8 379MB/s ± 0% txt1
_ZFlat7-8 352MB/s ± 0% txt2
_ZFlat8-8 396MB/s ± 1% txt3
_ZFlat9-8 327MB/s ± 1% txt4
_ZFlat10-8 1.33GB/s ± 1% pb
_ZFlat11-8 605MB/s ± 1% gaviota
"go test -test.bench=. -tags=noasm"
_UFlat0-8 621MB/s ± 2% html
_UFlat1-8 494MB/s ± 1% urls
_UFlat2-8 23.2GB/s ± 1% jpg
_UFlat3-8 1.12GB/s ± 1% jpg_200
_UFlat4-8 4.35GB/s ± 1% pdf
_UFlat5-8 609MB/s ± 0% html4
_UFlat6-8 296MB/s ± 0% txt1
_UFlat7-8 288MB/s ± 0% txt2
_UFlat8-8 309MB/s ± 1% txt3
_UFlat9-8 280MB/s ± 1% txt4
_UFlat10-8 753MB/s ± 0% pb
_UFlat11-8 400MB/s ± 0% gaviota
_ZFlat0-8 409MB/s ± 1% html
_ZFlat1-8 250MB/s ± 1% urls
_ZFlat2-8 12.3GB/s ± 1% jpg
_ZFlat3-8 132MB/s ± 0% jpg_200
_ZFlat4-8 2.92GB/s ± 0% pdf
_ZFlat5-8 405MB/s ± 1% html4
_ZFlat6-8 179MB/s ± 1% txt1
_ZFlat7-8 170MB/s ± 1% txt2
_ZFlat8-8 189MB/s ± 1% txt3
_ZFlat9-8 164MB/s ± 1% txt4
_ZFlat10-8 479MB/s ± 1% pb
_ZFlat11-8 270MB/s ± 1% gaviota
For comparison (Go's encoded output is byte-for-byte identical to C++'s), here
are the numbers from C++ Snappy's
make CXXFLAGS="-O2 -DNDEBUG -g" clean snappy_unittest.log && cat snappy_unittest.log
BM_UFlat/0 2.4GB/s html
BM_UFlat/1 1.4GB/s urls
BM_UFlat/2 21.8GB/s jpg
BM_UFlat/3 1.5GB/s jpg_200
BM_UFlat/4 13.3GB/s pdf
BM_UFlat/5 2.1GB/s html4
BM_UFlat/6 1.0GB/s txt1
BM_UFlat/7 959.4MB/s txt2
BM_UFlat/8 1.0GB/s txt3
BM_UFlat/9 864.5MB/s txt4
BM_UFlat/10 2.9GB/s pb
BM_UFlat/11 1.2GB/s gaviota
BM_ZFlat/0 944.3MB/s html (22.31 %)
BM_ZFlat/1 501.6MB/s urls (47.78 %)
BM_ZFlat/2 14.3GB/s jpg (99.95 %)
BM_ZFlat/3 538.3MB/s jpg_200 (73.00 %)
BM_ZFlat/4 8.3GB/s pdf (83.30 %)
BM_ZFlat/5 903.5MB/s html4 (22.52 %)
BM_ZFlat/6 336.0MB/s txt1 (57.88 %)
BM_ZFlat/7 312.3MB/s txt2 (61.91 %)
BM_ZFlat/8 353.1MB/s txt3 (54.99 %)
BM_ZFlat/9 289.9MB/s txt4 (66.26 %)
BM_ZFlat/10 1.2GB/s pb (19.68 %)
BM_ZFlat/11 527.4MB/s gaviota (37.72 %)

View File

@ -1,490 +0,0 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !appengine
// +build gc
// +build !noasm
#include "textflag.h"
// The asm code generally follows the pure Go code in decode_other.go, except
// where marked with a "!!!".
// func decode(dst, src []byte) int
//
// All local variables fit into registers. The non-zero stack size is only to
// spill registers and push args when issuing a CALL. The register allocation:
// - AX scratch
// - BX scratch
// - CX length or x
// - DX offset
// - SI &src[s]
// - DI &dst[d]
// + R8 dst_base
// + R9 dst_len
// + R10 dst_base + dst_len
// + R11 src_base
// + R12 src_len
// + R13 src_base + src_len
// - R14 used by doCopy
// - R15 used by doCopy
//
// The registers R8-R13 (marked with a "+") are set at the start of the
// function, and after a CALL returns, and are not otherwise modified.
//
// The d variable is implicitly DI - R8, and len(dst)-d is R10 - DI.
// The s variable is implicitly SI - R11, and len(src)-s is R13 - SI.
TEXT ·decode(SB), NOSPLIT, $48-56
// Initialize SI, DI and R8-R13.
MOVQ dst_base+0(FP), R8
MOVQ dst_len+8(FP), R9
MOVQ R8, DI
MOVQ R8, R10
ADDQ R9, R10
MOVQ src_base+24(FP), R11
MOVQ src_len+32(FP), R12
MOVQ R11, SI
MOVQ R11, R13
ADDQ R12, R13
loop:
// for s < len(src)
CMPQ SI, R13
JEQ end
// CX = uint32(src[s])
//
// switch src[s] & 0x03
MOVBLZX (SI), CX
MOVL CX, BX
ANDL $3, BX
CMPL BX, $1
JAE tagCopy
// ----------------------------------------
// The code below handles literal tags.
// case tagLiteral:
// x := uint32(src[s] >> 2)
// switch
SHRL $2, CX
CMPL CX, $60
JAE tagLit60Plus
// case x < 60:
// s++
INCQ SI
doLit:
// This is the end of the inner "switch", when we have a literal tag.
//
// We assume that CX == x and x fits in a uint32, where x is the variable
// used in the pure Go decode_other.go code.
// length = int(x) + 1
//
// Unlike the pure Go code, we don't need to check if length <= 0 because
// CX can hold 64 bits, so the increment cannot overflow.
INCQ CX
// Prepare to check if copying length bytes will run past the end of dst or
// src.
//
// AX = len(dst) - d
// BX = len(src) - s
MOVQ R10, AX
SUBQ DI, AX
MOVQ R13, BX
SUBQ SI, BX
// !!! Try a faster technique for short (16 or fewer bytes) copies.
//
// if length > 16 || len(dst)-d < 16 || len(src)-s < 16 {
// goto callMemmove // Fall back on calling runtime·memmove.
// }
//
// The C++ snappy code calls this TryFastAppend. It also checks len(src)-s
// against 21 instead of 16, because it cannot assume that all of its input
// is contiguous in memory and so it needs to leave enough source bytes to
// read the next tag without refilling buffers, but Go's Decode assumes
// contiguousness (the src argument is a []byte).
CMPQ CX, $16
JGT callMemmove
CMPQ AX, $16
JLT callMemmove
CMPQ BX, $16
JLT callMemmove
// !!! Implement the copy from src to dst as a 16-byte load and store.
// (Decode's documentation says that dst and src must not overlap.)
//
// This always copies 16 bytes, instead of only length bytes, but that's
// OK. If the input is a valid Snappy encoding then subsequent iterations
// will fix up the overrun. Otherwise, Decode returns a nil []byte (and a
// non-nil error), so the overrun will be ignored.
//
// Note that on amd64, it is legal and cheap to issue unaligned 8-byte or
// 16-byte loads and stores. This technique probably wouldn't be as
// effective on architectures that are fussier about alignment.
MOVOU 0(SI), X0
MOVOU X0, 0(DI)
// d += length
// s += length
ADDQ CX, DI
ADDQ CX, SI
JMP loop
callMemmove:
// if length > len(dst)-d || length > len(src)-s { etc }
CMPQ CX, AX
JGT errCorrupt
CMPQ CX, BX
JGT errCorrupt
// copy(dst[d:], src[s:s+length])
//
// This means calling runtime·memmove(&dst[d], &src[s], length), so we push
// DI, SI and CX as arguments. Coincidentally, we also need to spill those
// three registers to the stack, to save local variables across the CALL.
MOVQ DI, 0(SP)
MOVQ SI, 8(SP)
MOVQ CX, 16(SP)
MOVQ DI, 24(SP)
MOVQ SI, 32(SP)
MOVQ CX, 40(SP)
CALL runtime·memmove(SB)
// Restore local variables: unspill registers from the stack and
// re-calculate R8-R13.
MOVQ 24(SP), DI
MOVQ 32(SP), SI
MOVQ 40(SP), CX
MOVQ dst_base+0(FP), R8
MOVQ dst_len+8(FP), R9
MOVQ R8, R10
ADDQ R9, R10
MOVQ src_base+24(FP), R11
MOVQ src_len+32(FP), R12
MOVQ R11, R13
ADDQ R12, R13
// d += length
// s += length
ADDQ CX, DI
ADDQ CX, SI
JMP loop
tagLit60Plus:
// !!! This fragment does the
//
// s += x - 58; if uint(s) > uint(len(src)) { etc }
//
// checks. In the asm version, we code it once instead of once per switch case.
ADDQ CX, SI
SUBQ $58, SI
MOVQ SI, BX
SUBQ R11, BX
CMPQ BX, R12
JA errCorrupt
// case x == 60:
CMPL CX, $61
JEQ tagLit61
JA tagLit62Plus
// x = uint32(src[s-1])
MOVBLZX -1(SI), CX
JMP doLit
tagLit61:
// case x == 61:
// x = uint32(src[s-2]) | uint32(src[s-1])<<8
MOVWLZX -2(SI), CX
JMP doLit
tagLit62Plus:
CMPL CX, $62
JA tagLit63
// case x == 62:
// x = uint32(src[s-3]) | uint32(src[s-2])<<8 | uint32(src[s-1])<<16
MOVWLZX -3(SI), CX
MOVBLZX -1(SI), BX
SHLL $16, BX
ORL BX, CX
JMP doLit
tagLit63:
// case x == 63:
// x = uint32(src[s-4]) | uint32(src[s-3])<<8 | uint32(src[s-2])<<16 | uint32(src[s-1])<<24
MOVL -4(SI), CX
JMP doLit
// The code above handles literal tags.
// ----------------------------------------
// The code below handles copy tags.
tagCopy4:
// case tagCopy4:
// s += 5
ADDQ $5, SI
// if uint(s) > uint(len(src)) { etc }
MOVQ SI, BX
SUBQ R11, BX
CMPQ BX, R12
JA errCorrupt
// length = 1 + int(src[s-5])>>2
SHRQ $2, CX
INCQ CX
// offset = int(uint32(src[s-4]) | uint32(src[s-3])<<8 | uint32(src[s-2])<<16 | uint32(src[s-1])<<24)
MOVLQZX -4(SI), DX
JMP doCopy
tagCopy2:
// case tagCopy2:
// s += 3
ADDQ $3, SI
// if uint(s) > uint(len(src)) { etc }
MOVQ SI, BX
SUBQ R11, BX
CMPQ BX, R12
JA errCorrupt
// length = 1 + int(src[s-3])>>2
SHRQ $2, CX
INCQ CX
// offset = int(uint32(src[s-2]) | uint32(src[s-1])<<8)
MOVWQZX -2(SI), DX
JMP doCopy
tagCopy:
// We have a copy tag. We assume that:
// - BX == src[s] & 0x03
// - CX == src[s]
CMPQ BX, $2
JEQ tagCopy2
JA tagCopy4
// case tagCopy1:
// s += 2
ADDQ $2, SI
// if uint(s) > uint(len(src)) { etc }
MOVQ SI, BX
SUBQ R11, BX
CMPQ BX, R12
JA errCorrupt
// offset = int(uint32(src[s-2])&0xe0<<3 | uint32(src[s-1]))
MOVQ CX, DX
ANDQ $0xe0, DX
SHLQ $3, DX
MOVBQZX -1(SI), BX
ORQ BX, DX
// length = 4 + int(src[s-2])>>2&0x7
SHRQ $2, CX
ANDQ $7, CX
ADDQ $4, CX
doCopy:
// This is the end of the outer "switch", when we have a copy tag.
//
// We assume that:
// - CX == length && CX > 0
// - DX == offset
// if offset <= 0 { etc }
CMPQ DX, $0
JLE errCorrupt
// if d < offset { etc }
MOVQ DI, BX
SUBQ R8, BX
CMPQ BX, DX
JLT errCorrupt
// if length > len(dst)-d { etc }
MOVQ R10, BX
SUBQ DI, BX
CMPQ CX, BX
JGT errCorrupt
// forwardCopy(dst[d:d+length], dst[d-offset:]); d += length
//
// Set:
// - R14 = len(dst)-d
// - R15 = &dst[d-offset]
MOVQ R10, R14
SUBQ DI, R14
MOVQ DI, R15
SUBQ DX, R15
// !!! Try a faster technique for short (16 or fewer bytes) forward copies.
//
// First, try using two 8-byte load/stores, similar to the doLit technique
// above. Even if dst[d:d+length] and dst[d-offset:] can overlap, this is
// still OK if offset >= 8. Note that this has to be two 8-byte load/stores
// and not one 16-byte load/store, and the first store has to be before the
// second load, due to the overlap if offset is in the range [8, 16).
//
// if length > 16 || offset < 8 || len(dst)-d < 16 {
// goto slowForwardCopy
// }
// copy 16 bytes
// d += length
CMPQ CX, $16
JGT slowForwardCopy
CMPQ DX, $8
JLT slowForwardCopy
CMPQ R14, $16
JLT slowForwardCopy
MOVQ 0(R15), AX
MOVQ AX, 0(DI)
MOVQ 8(R15), BX
MOVQ BX, 8(DI)
ADDQ CX, DI
JMP loop
slowForwardCopy:
// !!! If the forward copy is longer than 16 bytes, or if offset < 8, we
// can still try 8-byte load stores, provided we can overrun up to 10 extra
// bytes. As above, the overrun will be fixed up by subsequent iterations
// of the outermost loop.
//
// The C++ snappy code calls this technique IncrementalCopyFastPath. Its
// commentary says:
//
// ----
//
// The main part of this loop is a simple copy of eight bytes at a time
// until we've copied (at least) the requested amount of bytes. However,
// if d and d-offset are less than eight bytes apart (indicating a
// repeating pattern of length < 8), we first need to expand the pattern in
// order to get the correct results. For instance, if the buffer looks like
// this, with the eight-byte <d-offset> and <d> patterns marked as
// intervals:
//
// abxxxxxxxxxxxx
// [------] d-offset
// [------] d
//
// a single eight-byte copy from <d-offset> to <d> will repeat the pattern
// once, after which we can move <d> two bytes without moving <d-offset>:
//
// ababxxxxxxxxxx
// [------] d-offset
// [------] d
//
// and repeat the exercise until the two no longer overlap.
//
// This allows us to do very well in the special case of one single byte
// repeated many times, without taking a big hit for more general cases.
//
// The worst case of extra writing past the end of the match occurs when
// offset == 1 and length == 1; the last copy will read from byte positions
// [0..7] and write to [4..11], whereas it was only supposed to write to
// position 1. Thus, ten excess bytes.
//
// ----
//
// That "10 byte overrun" worst case is confirmed by Go's
// TestSlowForwardCopyOverrun, which also tests the fixUpSlowForwardCopy
// and finishSlowForwardCopy algorithm.
//
// if length > len(dst)-d-10 {
// goto verySlowForwardCopy
// }
SUBQ $10, R14
CMPQ CX, R14
JGT verySlowForwardCopy
makeOffsetAtLeast8:
// !!! As above, expand the pattern so that offset >= 8 and we can use
// 8-byte load/stores.
//
// for offset < 8 {
// copy 8 bytes from dst[d-offset:] to dst[d:]
// length -= offset
// d += offset
// offset += offset
// // The two previous lines together means that d-offset, and therefore
// // R15, is unchanged.
// }
CMPQ DX, $8
JGE fixUpSlowForwardCopy
MOVQ (R15), BX
MOVQ BX, (DI)
SUBQ DX, CX
ADDQ DX, DI
ADDQ DX, DX
JMP makeOffsetAtLeast8
fixUpSlowForwardCopy:
// !!! Add length (which might be negative now) to d (implied by DI being
// &dst[d]) so that d ends up at the right place when we jump back to the
// top of the loop. Before we do that, though, we save DI to AX so that, if
// length is positive, copying the remaining length bytes will write to the
// right place.
MOVQ DI, AX
ADDQ CX, DI
finishSlowForwardCopy:
// !!! Repeat 8-byte load/stores until length <= 0. Ending with a negative
// length means that we overrun, but as above, that will be fixed up by
// subsequent iterations of the outermost loop.
CMPQ CX, $0
JLE loop
MOVQ (R15), BX
MOVQ BX, (AX)
ADDQ $8, R15
ADDQ $8, AX
SUBQ $8, CX
JMP finishSlowForwardCopy
verySlowForwardCopy:
// verySlowForwardCopy is a simple implementation of forward copy. In C
// parlance, this is a do/while loop instead of a while loop, since we know
// that length > 0. In Go syntax:
//
// for {
// dst[d] = dst[d - offset]
// d++
// length--
// if length == 0 {
// break
// }
// }
MOVB (R15), BX
MOVB BX, (DI)
INCQ R15
INCQ DI
DECQ CX
JNZ verySlowForwardCopy
JMP loop
// The code above handles copy tags.
// ----------------------------------------
end:
// This is the end of the "for s < len(src)".
//
// if d != len(dst) { etc }
CMPQ DI, R10
JNE errCorrupt
// return 0
MOVQ $0, ret+48(FP)
RET
errCorrupt:
// return decodeErrCodeCorrupt
MOVQ $1, ret+48(FP)
RET

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@ -1,494 +0,0 @@
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !appengine
// +build gc
// +build !noasm
#include "textflag.h"
// The asm code generally follows the pure Go code in decode_other.go, except
// where marked with a "!!!".
// func decode(dst, src []byte) int
//
// All local variables fit into registers. The non-zero stack size is only to
// spill registers and push args when issuing a CALL. The register allocation:
// - R2 scratch
// - R3 scratch
// - R4 length or x
// - R5 offset
// - R6 &src[s]
// - R7 &dst[d]
// + R8 dst_base
// + R9 dst_len
// + R10 dst_base + dst_len
// + R11 src_base
// + R12 src_len
// + R13 src_base + src_len
// - R14 used by doCopy
// - R15 used by doCopy
//
// The registers R8-R13 (marked with a "+") are set at the start of the
// function, and after a CALL returns, and are not otherwise modified.
//
// The d variable is implicitly R7 - R8, and len(dst)-d is R10 - R7.
// The s variable is implicitly R6 - R11, and len(src)-s is R13 - R6.
TEXT ·decode(SB), NOSPLIT, $56-56
// Initialize R6, R7 and R8-R13.
MOVD dst_base+0(FP), R8
MOVD dst_len+8(FP), R9
MOVD R8, R7
MOVD R8, R10
ADD R9, R10, R10
MOVD src_base+24(FP), R11
MOVD src_len+32(FP), R12
MOVD R11, R6
MOVD R11, R13
ADD R12, R13, R13
loop:
// for s < len(src)
CMP R13, R6
BEQ end
// R4 = uint32(src[s])
//
// switch src[s] & 0x03
MOVBU (R6), R4
MOVW R4, R3
ANDW $3, R3
MOVW $1, R1
CMPW R1, R3
BGE tagCopy
// ----------------------------------------
// The code below handles literal tags.
// case tagLiteral:
// x := uint32(src[s] >> 2)
// switch
MOVW $60, R1
LSRW $2, R4, R4
CMPW R4, R1
BLS tagLit60Plus
// case x < 60:
// s++
ADD $1, R6, R6
doLit:
// This is the end of the inner "switch", when we have a literal tag.
//
// We assume that R4 == x and x fits in a uint32, where x is the variable
// used in the pure Go decode_other.go code.
// length = int(x) + 1
//
// Unlike the pure Go code, we don't need to check if length <= 0 because
// R4 can hold 64 bits, so the increment cannot overflow.
ADD $1, R4, R4
// Prepare to check if copying length bytes will run past the end of dst or
// src.
//
// R2 = len(dst) - d
// R3 = len(src) - s
MOVD R10, R2
SUB R7, R2, R2
MOVD R13, R3
SUB R6, R3, R3
// !!! Try a faster technique for short (16 or fewer bytes) copies.
//
// if length > 16 || len(dst)-d < 16 || len(src)-s < 16 {
// goto callMemmove // Fall back on calling runtime·memmove.
// }
//
// The C++ snappy code calls this TryFastAppend. It also checks len(src)-s
// against 21 instead of 16, because it cannot assume that all of its input
// is contiguous in memory and so it needs to leave enough source bytes to
// read the next tag without refilling buffers, but Go's Decode assumes
// contiguousness (the src argument is a []byte).
CMP $16, R4
BGT callMemmove
CMP $16, R2
BLT callMemmove
CMP $16, R3
BLT callMemmove
// !!! Implement the copy from src to dst as a 16-byte load and store.
// (Decode's documentation says that dst and src must not overlap.)
//
// This always copies 16 bytes, instead of only length bytes, but that's
// OK. If the input is a valid Snappy encoding then subsequent iterations
// will fix up the overrun. Otherwise, Decode returns a nil []byte (and a
// non-nil error), so the overrun will be ignored.
//
// Note that on arm64, it is legal and cheap to issue unaligned 8-byte or
// 16-byte loads and stores. This technique probably wouldn't be as
// effective on architectures that are fussier about alignment.
LDP 0(R6), (R14, R15)
STP (R14, R15), 0(R7)
// d += length
// s += length
ADD R4, R7, R7
ADD R4, R6, R6
B loop
callMemmove:
// if length > len(dst)-d || length > len(src)-s { etc }
CMP R2, R4
BGT errCorrupt
CMP R3, R4
BGT errCorrupt
// copy(dst[d:], src[s:s+length])
//
// This means calling runtime·memmove(&dst[d], &src[s], length), so we push
// R7, R6 and R4 as arguments. Coincidentally, we also need to spill those
// three registers to the stack, to save local variables across the CALL.
MOVD R7, 8(RSP)
MOVD R6, 16(RSP)
MOVD R4, 24(RSP)
MOVD R7, 32(RSP)
MOVD R6, 40(RSP)
MOVD R4, 48(RSP)
CALL runtime·memmove(SB)
// Restore local variables: unspill registers from the stack and
// re-calculate R8-R13.
MOVD 32(RSP), R7
MOVD 40(RSP), R6
MOVD 48(RSP), R4
MOVD dst_base+0(FP), R8
MOVD dst_len+8(FP), R9
MOVD R8, R10
ADD R9, R10, R10
MOVD src_base+24(FP), R11
MOVD src_len+32(FP), R12
MOVD R11, R13
ADD R12, R13, R13
// d += length
// s += length
ADD R4, R7, R7
ADD R4, R6, R6
B loop
tagLit60Plus:
// !!! This fragment does the
//
// s += x - 58; if uint(s) > uint(len(src)) { etc }
//
// checks. In the asm version, we code it once instead of once per switch case.
ADD R4, R6, R6
SUB $58, R6, R6
MOVD R6, R3
SUB R11, R3, R3
CMP R12, R3
BGT errCorrupt
// case x == 60:
MOVW $61, R1
CMPW R1, R4
BEQ tagLit61
BGT tagLit62Plus
// x = uint32(src[s-1])
MOVBU -1(R6), R4
B doLit
tagLit61:
// case x == 61:
// x = uint32(src[s-2]) | uint32(src[s-1])<<8
MOVHU -2(R6), R4
B doLit
tagLit62Plus:
CMPW $62, R4
BHI tagLit63
// case x == 62:
// x = uint32(src[s-3]) | uint32(src[s-2])<<8 | uint32(src[s-1])<<16
MOVHU -3(R6), R4
MOVBU -1(R6), R3
ORR R3<<16, R4
B doLit
tagLit63:
// case x == 63:
// x = uint32(src[s-4]) | uint32(src[s-3])<<8 | uint32(src[s-2])<<16 | uint32(src[s-1])<<24
MOVWU -4(R6), R4
B doLit
// The code above handles literal tags.
// ----------------------------------------
// The code below handles copy tags.
tagCopy4:
// case tagCopy4:
// s += 5
ADD $5, R6, R6
// if uint(s) > uint(len(src)) { etc }
MOVD R6, R3
SUB R11, R3, R3
CMP R12, R3
BGT errCorrupt
// length = 1 + int(src[s-5])>>2
MOVD $1, R1
ADD R4>>2, R1, R4
// offset = int(uint32(src[s-4]) | uint32(src[s-3])<<8 | uint32(src[s-2])<<16 | uint32(src[s-1])<<24)
MOVWU -4(R6), R5
B doCopy
tagCopy2:
// case tagCopy2:
// s += 3
ADD $3, R6, R6
// if uint(s) > uint(len(src)) { etc }
MOVD R6, R3
SUB R11, R3, R3
CMP R12, R3
BGT errCorrupt
// length = 1 + int(src[s-3])>>2
MOVD $1, R1
ADD R4>>2, R1, R4
// offset = int(uint32(src[s-2]) | uint32(src[s-1])<<8)
MOVHU -2(R6), R5
B doCopy
tagCopy:
// We have a copy tag. We assume that:
// - R3 == src[s] & 0x03
// - R4 == src[s]
CMP $2, R3
BEQ tagCopy2
BGT tagCopy4
// case tagCopy1:
// s += 2
ADD $2, R6, R6
// if uint(s) > uint(len(src)) { etc }
MOVD R6, R3
SUB R11, R3, R3
CMP R12, R3
BGT errCorrupt
// offset = int(uint32(src[s-2])&0xe0<<3 | uint32(src[s-1]))
MOVD R4, R5
AND $0xe0, R5
MOVBU -1(R6), R3
ORR R5<<3, R3, R5
// length = 4 + int(src[s-2])>>2&0x7
MOVD $7, R1
AND R4>>2, R1, R4
ADD $4, R4, R4
doCopy:
// This is the end of the outer "switch", when we have a copy tag.
//
// We assume that:
// - R4 == length && R4 > 0
// - R5 == offset
// if offset <= 0 { etc }
MOVD $0, R1
CMP R1, R5
BLE errCorrupt
// if d < offset { etc }
MOVD R7, R3
SUB R8, R3, R3
CMP R5, R3
BLT errCorrupt
// if length > len(dst)-d { etc }
MOVD R10, R3
SUB R7, R3, R3
CMP R3, R4
BGT errCorrupt
// forwardCopy(dst[d:d+length], dst[d-offset:]); d += length
//
// Set:
// - R14 = len(dst)-d
// - R15 = &dst[d-offset]
MOVD R10, R14
SUB R7, R14, R14
MOVD R7, R15
SUB R5, R15, R15
// !!! Try a faster technique for short (16 or fewer bytes) forward copies.
//
// First, try using two 8-byte load/stores, similar to the doLit technique
// above. Even if dst[d:d+length] and dst[d-offset:] can overlap, this is
// still OK if offset >= 8. Note that this has to be two 8-byte load/stores
// and not one 16-byte load/store, and the first store has to be before the
// second load, due to the overlap if offset is in the range [8, 16).
//
// if length > 16 || offset < 8 || len(dst)-d < 16 {
// goto slowForwardCopy
// }
// copy 16 bytes
// d += length
CMP $16, R4
BGT slowForwardCopy
CMP $8, R5
BLT slowForwardCopy
CMP $16, R14
BLT slowForwardCopy
MOVD 0(R15), R2
MOVD R2, 0(R7)
MOVD 8(R15), R3
MOVD R3, 8(R7)
ADD R4, R7, R7
B loop
slowForwardCopy:
// !!! If the forward copy is longer than 16 bytes, or if offset < 8, we
// can still try 8-byte load stores, provided we can overrun up to 10 extra
// bytes. As above, the overrun will be fixed up by subsequent iterations
// of the outermost loop.
//
// The C++ snappy code calls this technique IncrementalCopyFastPath. Its
// commentary says:
//
// ----
//
// The main part of this loop is a simple copy of eight bytes at a time
// until we've copied (at least) the requested amount of bytes. However,
// if d and d-offset are less than eight bytes apart (indicating a
// repeating pattern of length < 8), we first need to expand the pattern in
// order to get the correct results. For instance, if the buffer looks like
// this, with the eight-byte <d-offset> and <d> patterns marked as
// intervals:
//
// abxxxxxxxxxxxx
// [------] d-offset
// [------] d
//
// a single eight-byte copy from <d-offset> to <d> will repeat the pattern
// once, after which we can move <d> two bytes without moving <d-offset>:
//
// ababxxxxxxxxxx
// [------] d-offset
// [------] d
//
// and repeat the exercise until the two no longer overlap.
//
// This allows us to do very well in the special case of one single byte
// repeated many times, without taking a big hit for more general cases.
//
// The worst case of extra writing past the end of the match occurs when
// offset == 1 and length == 1; the last copy will read from byte positions
// [0..7] and write to [4..11], whereas it was only supposed to write to
// position 1. Thus, ten excess bytes.
//
// ----
//
// That "10 byte overrun" worst case is confirmed by Go's
// TestSlowForwardCopyOverrun, which also tests the fixUpSlowForwardCopy
// and finishSlowForwardCopy algorithm.
//
// if length > len(dst)-d-10 {
// goto verySlowForwardCopy
// }
SUB $10, R14, R14
CMP R14, R4
BGT verySlowForwardCopy
makeOffsetAtLeast8:
// !!! As above, expand the pattern so that offset >= 8 and we can use
// 8-byte load/stores.
//
// for offset < 8 {
// copy 8 bytes from dst[d-offset:] to dst[d:]
// length -= offset
// d += offset
// offset += offset
// // The two previous lines together means that d-offset, and therefore
// // R15, is unchanged.
// }
CMP $8, R5
BGE fixUpSlowForwardCopy
MOVD (R15), R3
MOVD R3, (R7)
SUB R5, R4, R4
ADD R5, R7, R7
ADD R5, R5, R5
B makeOffsetAtLeast8
fixUpSlowForwardCopy:
// !!! Add length (which might be negative now) to d (implied by R7 being
// &dst[d]) so that d ends up at the right place when we jump back to the
// top of the loop. Before we do that, though, we save R7 to R2 so that, if
// length is positive, copying the remaining length bytes will write to the
// right place.
MOVD R7, R2
ADD R4, R7, R7
finishSlowForwardCopy:
// !!! Repeat 8-byte load/stores until length <= 0. Ending with a negative
// length means that we overrun, but as above, that will be fixed up by
// subsequent iterations of the outermost loop.
MOVD $0, R1
CMP R1, R4
BLE loop
MOVD (R15), R3
MOVD R3, (R2)
ADD $8, R15, R15
ADD $8, R2, R2
SUB $8, R4, R4
B finishSlowForwardCopy
verySlowForwardCopy:
// verySlowForwardCopy is a simple implementation of forward copy. In C
// parlance, this is a do/while loop instead of a while loop, since we know
// that length > 0. In Go syntax:
//
// for {
// dst[d] = dst[d - offset]
// d++
// length--
// if length == 0 {
// break
// }
// }
MOVB (R15), R3
MOVB R3, (R7)
ADD $1, R15, R15
ADD $1, R7, R7
SUB $1, R4, R4
CBNZ R4, verySlowForwardCopy
B loop
// The code above handles copy tags.
// ----------------------------------------
end:
// This is the end of the "for s < len(src)".
//
// if d != len(dst) { etc }
CMP R10, R7
BNE errCorrupt
// return 0
MOVD $0, ret+48(FP)
RET
errCorrupt:
// return decodeErrCodeCorrupt
MOVD $1, R2
MOVD R2, ret+48(FP)
RET

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@ -1,15 +0,0 @@
// Copyright 2016 The Snappy-Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !appengine
// +build gc
// +build !noasm
// +build amd64 arm64
package snappy
// decode has the same semantics as in decode_other.go.
//
//go:noescape
func decode(dst, src []byte) int

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@ -1,730 +0,0 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !appengine
// +build gc
// +build !noasm
#include "textflag.h"
// The XXX lines assemble on Go 1.4, 1.5 and 1.7, but not 1.6, due to a
// Go toolchain regression. See https://github.com/golang/go/issues/15426 and
// https://github.com/golang/snappy/issues/29
//
// As a workaround, the package was built with a known good assembler, and
// those instructions were disassembled by "objdump -d" to yield the
// 4e 0f b7 7c 5c 78 movzwq 0x78(%rsp,%r11,2),%r15
// style comments, in AT&T asm syntax. Note that rsp here is a physical
// register, not Go/asm's SP pseudo-register (see https://golang.org/doc/asm).
// The instructions were then encoded as "BYTE $0x.." sequences, which assemble
// fine on Go 1.6.
// The asm code generally follows the pure Go code in encode_other.go, except
// where marked with a "!!!".
// ----------------------------------------------------------------------------
// func emitLiteral(dst, lit []byte) int
//
// All local variables fit into registers. The register allocation:
// - AX len(lit)
// - BX n
// - DX return value
// - DI &dst[i]
// - R10 &lit[0]
//
// The 24 bytes of stack space is to call runtime·memmove.
//
// The unusual register allocation of local variables, such as R10 for the
// source pointer, matches the allocation used at the call site in encodeBlock,
// which makes it easier to manually inline this function.
TEXT ·emitLiteral(SB), NOSPLIT, $24-56
MOVQ dst_base+0(FP), DI
MOVQ lit_base+24(FP), R10
MOVQ lit_len+32(FP), AX
MOVQ AX, DX
MOVL AX, BX
SUBL $1, BX
CMPL BX, $60
JLT oneByte
CMPL BX, $256
JLT twoBytes
threeBytes:
MOVB $0xf4, 0(DI)
MOVW BX, 1(DI)
ADDQ $3, DI
ADDQ $3, DX
JMP memmove
twoBytes:
MOVB $0xf0, 0(DI)
MOVB BX, 1(DI)
ADDQ $2, DI
ADDQ $2, DX
JMP memmove
oneByte:
SHLB $2, BX
MOVB BX, 0(DI)
ADDQ $1, DI
ADDQ $1, DX
memmove:
MOVQ DX, ret+48(FP)
// copy(dst[i:], lit)
//
// This means calling runtime·memmove(&dst[i], &lit[0], len(lit)), so we push
// DI, R10 and AX as arguments.
MOVQ DI, 0(SP)
MOVQ R10, 8(SP)
MOVQ AX, 16(SP)
CALL runtime·memmove(SB)
RET
// ----------------------------------------------------------------------------
// func emitCopy(dst []byte, offset, length int) int
//
// All local variables fit into registers. The register allocation:
// - AX length
// - SI &dst[0]
// - DI &dst[i]
// - R11 offset
//
// The unusual register allocation of local variables, such as R11 for the
// offset, matches the allocation used at the call site in encodeBlock, which
// makes it easier to manually inline this function.
TEXT ·emitCopy(SB), NOSPLIT, $0-48
MOVQ dst_base+0(FP), DI
MOVQ DI, SI
MOVQ offset+24(FP), R11
MOVQ length+32(FP), AX
loop0:
// for length >= 68 { etc }
CMPL AX, $68
JLT step1
// Emit a length 64 copy, encoded as 3 bytes.
MOVB $0xfe, 0(DI)
MOVW R11, 1(DI)
ADDQ $3, DI
SUBL $64, AX
JMP loop0
step1:
// if length > 64 { etc }
CMPL AX, $64
JLE step2
// Emit a length 60 copy, encoded as 3 bytes.
MOVB $0xee, 0(DI)
MOVW R11, 1(DI)
ADDQ $3, DI
SUBL $60, AX
step2:
// if length >= 12 || offset >= 2048 { goto step3 }
CMPL AX, $12
JGE step3
CMPL R11, $2048
JGE step3
// Emit the remaining copy, encoded as 2 bytes.
MOVB R11, 1(DI)
SHRL $8, R11
SHLB $5, R11
SUBB $4, AX
SHLB $2, AX
ORB AX, R11
ORB $1, R11
MOVB R11, 0(DI)
ADDQ $2, DI
// Return the number of bytes written.
SUBQ SI, DI
MOVQ DI, ret+40(FP)
RET
step3:
// Emit the remaining copy, encoded as 3 bytes.
SUBL $1, AX
SHLB $2, AX
ORB $2, AX
MOVB AX, 0(DI)
MOVW R11, 1(DI)
ADDQ $3, DI
// Return the number of bytes written.
SUBQ SI, DI
MOVQ DI, ret+40(FP)
RET
// ----------------------------------------------------------------------------
// func extendMatch(src []byte, i, j int) int
//
// All local variables fit into registers. The register allocation:
// - DX &src[0]
// - SI &src[j]
// - R13 &src[len(src) - 8]
// - R14 &src[len(src)]
// - R15 &src[i]
//
// The unusual register allocation of local variables, such as R15 for a source
// pointer, matches the allocation used at the call site in encodeBlock, which
// makes it easier to manually inline this function.
TEXT ·extendMatch(SB), NOSPLIT, $0-48
MOVQ src_base+0(FP), DX
MOVQ src_len+8(FP), R14
MOVQ i+24(FP), R15
MOVQ j+32(FP), SI
ADDQ DX, R14
ADDQ DX, R15
ADDQ DX, SI
MOVQ R14, R13
SUBQ $8, R13
cmp8:
// As long as we are 8 or more bytes before the end of src, we can load and
// compare 8 bytes at a time. If those 8 bytes are equal, repeat.
CMPQ SI, R13
JA cmp1
MOVQ (R15), AX
MOVQ (SI), BX
CMPQ AX, BX
JNE bsf
ADDQ $8, R15
ADDQ $8, SI
JMP cmp8
bsf:
// If those 8 bytes were not equal, XOR the two 8 byte values, and return
// the index of the first byte that differs. The BSF instruction finds the
// least significant 1 bit, the amd64 architecture is little-endian, and
// the shift by 3 converts a bit index to a byte index.
XORQ AX, BX
BSFQ BX, BX
SHRQ $3, BX
ADDQ BX, SI
// Convert from &src[ret] to ret.
SUBQ DX, SI
MOVQ SI, ret+40(FP)
RET
cmp1:
// In src's tail, compare 1 byte at a time.
CMPQ SI, R14
JAE extendMatchEnd
MOVB (R15), AX
MOVB (SI), BX
CMPB AX, BX
JNE extendMatchEnd
ADDQ $1, R15
ADDQ $1, SI
JMP cmp1
extendMatchEnd:
// Convert from &src[ret] to ret.
SUBQ DX, SI
MOVQ SI, ret+40(FP)
RET
// ----------------------------------------------------------------------------
// func encodeBlock(dst, src []byte) (d int)
//
// All local variables fit into registers, other than "var table". The register
// allocation:
// - AX . .
// - BX . .
// - CX 56 shift (note that amd64 shifts by non-immediates must use CX).
// - DX 64 &src[0], tableSize
// - SI 72 &src[s]
// - DI 80 &dst[d]
// - R9 88 sLimit
// - R10 . &src[nextEmit]
// - R11 96 prevHash, currHash, nextHash, offset
// - R12 104 &src[base], skip
// - R13 . &src[nextS], &src[len(src) - 8]
// - R14 . len(src), bytesBetweenHashLookups, &src[len(src)], x
// - R15 112 candidate
//
// The second column (56, 64, etc) is the stack offset to spill the registers
// when calling other functions. We could pack this slightly tighter, but it's
// simpler to have a dedicated spill map independent of the function called.
//
// "var table [maxTableSize]uint16" takes up 32768 bytes of stack space. An
// extra 56 bytes, to call other functions, and an extra 64 bytes, to spill
// local variables (registers) during calls gives 32768 + 56 + 64 = 32888.
TEXT ·encodeBlock(SB), 0, $32888-56
MOVQ dst_base+0(FP), DI
MOVQ src_base+24(FP), SI
MOVQ src_len+32(FP), R14
// shift, tableSize := uint32(32-8), 1<<8
MOVQ $24, CX
MOVQ $256, DX
calcShift:
// for ; tableSize < maxTableSize && tableSize < len(src); tableSize *= 2 {
// shift--
// }
CMPQ DX, $16384
JGE varTable
CMPQ DX, R14
JGE varTable
SUBQ $1, CX
SHLQ $1, DX
JMP calcShift
varTable:
// var table [maxTableSize]uint16
//
// In the asm code, unlike the Go code, we can zero-initialize only the
// first tableSize elements. Each uint16 element is 2 bytes and each MOVOU
// writes 16 bytes, so we can do only tableSize/8 writes instead of the
// 2048 writes that would zero-initialize all of table's 32768 bytes.
SHRQ $3, DX
LEAQ table-32768(SP), BX
PXOR X0, X0
memclr:
MOVOU X0, 0(BX)
ADDQ $16, BX
SUBQ $1, DX
JNZ memclr
// !!! DX = &src[0]
MOVQ SI, DX
// sLimit := len(src) - inputMargin
MOVQ R14, R9
SUBQ $15, R9
// !!! Pre-emptively spill CX, DX and R9 to the stack. Their values don't
// change for the rest of the function.
MOVQ CX, 56(SP)
MOVQ DX, 64(SP)
MOVQ R9, 88(SP)
// nextEmit := 0
MOVQ DX, R10
// s := 1
ADDQ $1, SI
// nextHash := hash(load32(src, s), shift)
MOVL 0(SI), R11
IMULL $0x1e35a7bd, R11
SHRL CX, R11
outer:
// for { etc }
// skip := 32
MOVQ $32, R12
// nextS := s
MOVQ SI, R13
// candidate := 0
MOVQ $0, R15
inner0:
// for { etc }
// s := nextS
MOVQ R13, SI
// bytesBetweenHashLookups := skip >> 5
MOVQ R12, R14
SHRQ $5, R14
// nextS = s + bytesBetweenHashLookups
ADDQ R14, R13
// skip += bytesBetweenHashLookups
ADDQ R14, R12
// if nextS > sLimit { goto emitRemainder }
MOVQ R13, AX
SUBQ DX, AX
CMPQ AX, R9
JA emitRemainder
// candidate = int(table[nextHash])
// XXX: MOVWQZX table-32768(SP)(R11*2), R15
// XXX: 4e 0f b7 7c 5c 78 movzwq 0x78(%rsp,%r11,2),%r15
BYTE $0x4e
BYTE $0x0f
BYTE $0xb7
BYTE $0x7c
BYTE $0x5c
BYTE $0x78
// table[nextHash] = uint16(s)
MOVQ SI, AX
SUBQ DX, AX
// XXX: MOVW AX, table-32768(SP)(R11*2)
// XXX: 66 42 89 44 5c 78 mov %ax,0x78(%rsp,%r11,2)
BYTE $0x66
BYTE $0x42
BYTE $0x89
BYTE $0x44
BYTE $0x5c
BYTE $0x78
// nextHash = hash(load32(src, nextS), shift)
MOVL 0(R13), R11
IMULL $0x1e35a7bd, R11
SHRL CX, R11
// if load32(src, s) != load32(src, candidate) { continue } break
MOVL 0(SI), AX
MOVL (DX)(R15*1), BX
CMPL AX, BX
JNE inner0
fourByteMatch:
// As per the encode_other.go code:
//
// A 4-byte match has been found. We'll later see etc.
// !!! Jump to a fast path for short (<= 16 byte) literals. See the comment
// on inputMargin in encode.go.
MOVQ SI, AX
SUBQ R10, AX
CMPQ AX, $16
JLE emitLiteralFastPath
// ----------------------------------------
// Begin inline of the emitLiteral call.
//
// d += emitLiteral(dst[d:], src[nextEmit:s])
MOVL AX, BX
SUBL $1, BX
CMPL BX, $60
JLT inlineEmitLiteralOneByte
CMPL BX, $256
JLT inlineEmitLiteralTwoBytes
inlineEmitLiteralThreeBytes:
MOVB $0xf4, 0(DI)
MOVW BX, 1(DI)
ADDQ $3, DI
JMP inlineEmitLiteralMemmove
inlineEmitLiteralTwoBytes:
MOVB $0xf0, 0(DI)
MOVB BX, 1(DI)
ADDQ $2, DI
JMP inlineEmitLiteralMemmove
inlineEmitLiteralOneByte:
SHLB $2, BX
MOVB BX, 0(DI)
ADDQ $1, DI
inlineEmitLiteralMemmove:
// Spill local variables (registers) onto the stack; call; unspill.
//
// copy(dst[i:], lit)
//
// This means calling runtime·memmove(&dst[i], &lit[0], len(lit)), so we push
// DI, R10 and AX as arguments.
MOVQ DI, 0(SP)
MOVQ R10, 8(SP)
MOVQ AX, 16(SP)
ADDQ AX, DI // Finish the "d +=" part of "d += emitLiteral(etc)".
MOVQ SI, 72(SP)
MOVQ DI, 80(SP)
MOVQ R15, 112(SP)
CALL runtime·memmove(SB)
MOVQ 56(SP), CX
MOVQ 64(SP), DX
MOVQ 72(SP), SI
MOVQ 80(SP), DI
MOVQ 88(SP), R9
MOVQ 112(SP), R15
JMP inner1
inlineEmitLiteralEnd:
// End inline of the emitLiteral call.
// ----------------------------------------
emitLiteralFastPath:
// !!! Emit the 1-byte encoding "uint8(len(lit)-1)<<2".
MOVB AX, BX
SUBB $1, BX
SHLB $2, BX
MOVB BX, (DI)
ADDQ $1, DI
// !!! Implement the copy from lit to dst as a 16-byte load and store.
// (Encode's documentation says that dst and src must not overlap.)
//
// This always copies 16 bytes, instead of only len(lit) bytes, but that's
// OK. Subsequent iterations will fix up the overrun.
//
// Note that on amd64, it is legal and cheap to issue unaligned 8-byte or
// 16-byte loads and stores. This technique probably wouldn't be as
// effective on architectures that are fussier about alignment.
MOVOU 0(R10), X0
MOVOU X0, 0(DI)
ADDQ AX, DI
inner1:
// for { etc }
// base := s
MOVQ SI, R12
// !!! offset := base - candidate
MOVQ R12, R11
SUBQ R15, R11
SUBQ DX, R11
// ----------------------------------------
// Begin inline of the extendMatch call.
//
// s = extendMatch(src, candidate+4, s+4)
// !!! R14 = &src[len(src)]
MOVQ src_len+32(FP), R14
ADDQ DX, R14
// !!! R13 = &src[len(src) - 8]
MOVQ R14, R13
SUBQ $8, R13
// !!! R15 = &src[candidate + 4]
ADDQ $4, R15
ADDQ DX, R15
// !!! s += 4
ADDQ $4, SI
inlineExtendMatchCmp8:
// As long as we are 8 or more bytes before the end of src, we can load and
// compare 8 bytes at a time. If those 8 bytes are equal, repeat.
CMPQ SI, R13
JA inlineExtendMatchCmp1
MOVQ (R15), AX
MOVQ (SI), BX
CMPQ AX, BX
JNE inlineExtendMatchBSF
ADDQ $8, R15
ADDQ $8, SI
JMP inlineExtendMatchCmp8
inlineExtendMatchBSF:
// If those 8 bytes were not equal, XOR the two 8 byte values, and return
// the index of the first byte that differs. The BSF instruction finds the
// least significant 1 bit, the amd64 architecture is little-endian, and
// the shift by 3 converts a bit index to a byte index.
XORQ AX, BX
BSFQ BX, BX
SHRQ $3, BX
ADDQ BX, SI
JMP inlineExtendMatchEnd
inlineExtendMatchCmp1:
// In src's tail, compare 1 byte at a time.
CMPQ SI, R14
JAE inlineExtendMatchEnd
MOVB (R15), AX
MOVB (SI), BX
CMPB AX, BX
JNE inlineExtendMatchEnd
ADDQ $1, R15
ADDQ $1, SI
JMP inlineExtendMatchCmp1
inlineExtendMatchEnd:
// End inline of the extendMatch call.
// ----------------------------------------
// ----------------------------------------
// Begin inline of the emitCopy call.
//
// d += emitCopy(dst[d:], base-candidate, s-base)
// !!! length := s - base
MOVQ SI, AX
SUBQ R12, AX
inlineEmitCopyLoop0:
// for length >= 68 { etc }
CMPL AX, $68
JLT inlineEmitCopyStep1
// Emit a length 64 copy, encoded as 3 bytes.
MOVB $0xfe, 0(DI)
MOVW R11, 1(DI)
ADDQ $3, DI
SUBL $64, AX
JMP inlineEmitCopyLoop0
inlineEmitCopyStep1:
// if length > 64 { etc }
CMPL AX, $64
JLE inlineEmitCopyStep2
// Emit a length 60 copy, encoded as 3 bytes.
MOVB $0xee, 0(DI)
MOVW R11, 1(DI)
ADDQ $3, DI
SUBL $60, AX
inlineEmitCopyStep2:
// if length >= 12 || offset >= 2048 { goto inlineEmitCopyStep3 }
CMPL AX, $12
JGE inlineEmitCopyStep3
CMPL R11, $2048
JGE inlineEmitCopyStep3
// Emit the remaining copy, encoded as 2 bytes.
MOVB R11, 1(DI)
SHRL $8, R11
SHLB $5, R11
SUBB $4, AX
SHLB $2, AX
ORB AX, R11
ORB $1, R11
MOVB R11, 0(DI)
ADDQ $2, DI
JMP inlineEmitCopyEnd
inlineEmitCopyStep3:
// Emit the remaining copy, encoded as 3 bytes.
SUBL $1, AX
SHLB $2, AX
ORB $2, AX
MOVB AX, 0(DI)
MOVW R11, 1(DI)
ADDQ $3, DI
inlineEmitCopyEnd:
// End inline of the emitCopy call.
// ----------------------------------------
// nextEmit = s
MOVQ SI, R10
// if s >= sLimit { goto emitRemainder }
MOVQ SI, AX
SUBQ DX, AX
CMPQ AX, R9
JAE emitRemainder
// As per the encode_other.go code:
//
// We could immediately etc.
// x := load64(src, s-1)
MOVQ -1(SI), R14
// prevHash := hash(uint32(x>>0), shift)
MOVL R14, R11
IMULL $0x1e35a7bd, R11
SHRL CX, R11
// table[prevHash] = uint16(s-1)
MOVQ SI, AX
SUBQ DX, AX
SUBQ $1, AX
// XXX: MOVW AX, table-32768(SP)(R11*2)
// XXX: 66 42 89 44 5c 78 mov %ax,0x78(%rsp,%r11,2)
BYTE $0x66
BYTE $0x42
BYTE $0x89
BYTE $0x44
BYTE $0x5c
BYTE $0x78
// currHash := hash(uint32(x>>8), shift)
SHRQ $8, R14
MOVL R14, R11
IMULL $0x1e35a7bd, R11
SHRL CX, R11
// candidate = int(table[currHash])
// XXX: MOVWQZX table-32768(SP)(R11*2), R15
// XXX: 4e 0f b7 7c 5c 78 movzwq 0x78(%rsp,%r11,2),%r15
BYTE $0x4e
BYTE $0x0f
BYTE $0xb7
BYTE $0x7c
BYTE $0x5c
BYTE $0x78
// table[currHash] = uint16(s)
ADDQ $1, AX
// XXX: MOVW AX, table-32768(SP)(R11*2)
// XXX: 66 42 89 44 5c 78 mov %ax,0x78(%rsp,%r11,2)
BYTE $0x66
BYTE $0x42
BYTE $0x89
BYTE $0x44
BYTE $0x5c
BYTE $0x78
// if uint32(x>>8) == load32(src, candidate) { continue }
MOVL (DX)(R15*1), BX
CMPL R14, BX
JEQ inner1
// nextHash = hash(uint32(x>>16), shift)
SHRQ $8, R14
MOVL R14, R11
IMULL $0x1e35a7bd, R11
SHRL CX, R11
// s++
ADDQ $1, SI
// break out of the inner1 for loop, i.e. continue the outer loop.
JMP outer
emitRemainder:
// if nextEmit < len(src) { etc }
MOVQ src_len+32(FP), AX
ADDQ DX, AX
CMPQ R10, AX
JEQ encodeBlockEnd
// d += emitLiteral(dst[d:], src[nextEmit:])
//
// Push args.
MOVQ DI, 0(SP)
MOVQ $0, 8(SP) // Unnecessary, as the callee ignores it, but conservative.
MOVQ $0, 16(SP) // Unnecessary, as the callee ignores it, but conservative.
MOVQ R10, 24(SP)
SUBQ R10, AX
MOVQ AX, 32(SP)
MOVQ AX, 40(SP) // Unnecessary, as the callee ignores it, but conservative.
// Spill local variables (registers) onto the stack; call; unspill.
MOVQ DI, 80(SP)
CALL ·emitLiteral(SB)
MOVQ 80(SP), DI
// Finish the "d +=" part of "d += emitLiteral(etc)".
ADDQ 48(SP), DI
encodeBlockEnd:
MOVQ dst_base+0(FP), AX
SUBQ AX, DI
MOVQ DI, d+48(FP)
RET

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@ -1,722 +0,0 @@
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !appengine
// +build gc
// +build !noasm
#include "textflag.h"
// The asm code generally follows the pure Go code in encode_other.go, except
// where marked with a "!!!".
// ----------------------------------------------------------------------------
// func emitLiteral(dst, lit []byte) int
//
// All local variables fit into registers. The register allocation:
// - R3 len(lit)
// - R4 n
// - R6 return value
// - R8 &dst[i]
// - R10 &lit[0]
//
// The 32 bytes of stack space is to call runtime·memmove.
//
// The unusual register allocation of local variables, such as R10 for the
// source pointer, matches the allocation used at the call site in encodeBlock,
// which makes it easier to manually inline this function.
TEXT ·emitLiteral(SB), NOSPLIT, $32-56
MOVD dst_base+0(FP), R8
MOVD lit_base+24(FP), R10
MOVD lit_len+32(FP), R3
MOVD R3, R6
MOVW R3, R4
SUBW $1, R4, R4
CMPW $60, R4
BLT oneByte
CMPW $256, R4
BLT twoBytes
threeBytes:
MOVD $0xf4, R2
MOVB R2, 0(R8)
MOVW R4, 1(R8)
ADD $3, R8, R8
ADD $3, R6, R6
B memmove
twoBytes:
MOVD $0xf0, R2
MOVB R2, 0(R8)
MOVB R4, 1(R8)
ADD $2, R8, R8
ADD $2, R6, R6
B memmove
oneByte:
LSLW $2, R4, R4
MOVB R4, 0(R8)
ADD $1, R8, R8
ADD $1, R6, R6
memmove:
MOVD R6, ret+48(FP)
// copy(dst[i:], lit)
//
// This means calling runtime·memmove(&dst[i], &lit[0], len(lit)), so we push
// R8, R10 and R3 as arguments.
MOVD R8, 8(RSP)
MOVD R10, 16(RSP)
MOVD R3, 24(RSP)
CALL runtime·memmove(SB)
RET
// ----------------------------------------------------------------------------
// func emitCopy(dst []byte, offset, length int) int
//
// All local variables fit into registers. The register allocation:
// - R3 length
// - R7 &dst[0]
// - R8 &dst[i]
// - R11 offset
//
// The unusual register allocation of local variables, such as R11 for the
// offset, matches the allocation used at the call site in encodeBlock, which
// makes it easier to manually inline this function.
TEXT ·emitCopy(SB), NOSPLIT, $0-48
MOVD dst_base+0(FP), R8
MOVD R8, R7
MOVD offset+24(FP), R11
MOVD length+32(FP), R3
loop0:
// for length >= 68 { etc }
CMPW $68, R3
BLT step1
// Emit a length 64 copy, encoded as 3 bytes.
MOVD $0xfe, R2
MOVB R2, 0(R8)
MOVW R11, 1(R8)
ADD $3, R8, R8
SUB $64, R3, R3
B loop0
step1:
// if length > 64 { etc }
CMP $64, R3
BLE step2
// Emit a length 60 copy, encoded as 3 bytes.
MOVD $0xee, R2
MOVB R2, 0(R8)
MOVW R11, 1(R8)
ADD $3, R8, R8
SUB $60, R3, R3
step2:
// if length >= 12 || offset >= 2048 { goto step3 }
CMP $12, R3
BGE step3
CMPW $2048, R11
BGE step3
// Emit the remaining copy, encoded as 2 bytes.
MOVB R11, 1(R8)
LSRW $3, R11, R11
AND $0xe0, R11, R11
SUB $4, R3, R3
LSLW $2, R3
AND $0xff, R3, R3
ORRW R3, R11, R11
ORRW $1, R11, R11
MOVB R11, 0(R8)
ADD $2, R8, R8
// Return the number of bytes written.
SUB R7, R8, R8
MOVD R8, ret+40(FP)
RET
step3:
// Emit the remaining copy, encoded as 3 bytes.
SUB $1, R3, R3
AND $0xff, R3, R3
LSLW $2, R3, R3
ORRW $2, R3, R3
MOVB R3, 0(R8)
MOVW R11, 1(R8)
ADD $3, R8, R8
// Return the number of bytes written.
SUB R7, R8, R8
MOVD R8, ret+40(FP)
RET
// ----------------------------------------------------------------------------
// func extendMatch(src []byte, i, j int) int
//
// All local variables fit into registers. The register allocation:
// - R6 &src[0]
// - R7 &src[j]
// - R13 &src[len(src) - 8]
// - R14 &src[len(src)]
// - R15 &src[i]
//
// The unusual register allocation of local variables, such as R15 for a source
// pointer, matches the allocation used at the call site in encodeBlock, which
// makes it easier to manually inline this function.
TEXT ·extendMatch(SB), NOSPLIT, $0-48
MOVD src_base+0(FP), R6
MOVD src_len+8(FP), R14
MOVD i+24(FP), R15
MOVD j+32(FP), R7
ADD R6, R14, R14
ADD R6, R15, R15
ADD R6, R7, R7
MOVD R14, R13
SUB $8, R13, R13
cmp8:
// As long as we are 8 or more bytes before the end of src, we can load and
// compare 8 bytes at a time. If those 8 bytes are equal, repeat.
CMP R13, R7
BHI cmp1
MOVD (R15), R3
MOVD (R7), R4
CMP R4, R3
BNE bsf
ADD $8, R15, R15
ADD $8, R7, R7
B cmp8
bsf:
// If those 8 bytes were not equal, XOR the two 8 byte values, and return
// the index of the first byte that differs.
// RBIT reverses the bit order, then CLZ counts the leading zeros, the
// combination of which finds the least significant bit which is set.
// The arm64 architecture is little-endian, and the shift by 3 converts
// a bit index to a byte index.
EOR R3, R4, R4
RBIT R4, R4
CLZ R4, R4
ADD R4>>3, R7, R7
// Convert from &src[ret] to ret.
SUB R6, R7, R7
MOVD R7, ret+40(FP)
RET
cmp1:
// In src's tail, compare 1 byte at a time.
CMP R7, R14
BLS extendMatchEnd
MOVB (R15), R3
MOVB (R7), R4
CMP R4, R3
BNE extendMatchEnd
ADD $1, R15, R15
ADD $1, R7, R7
B cmp1
extendMatchEnd:
// Convert from &src[ret] to ret.
SUB R6, R7, R7
MOVD R7, ret+40(FP)
RET
// ----------------------------------------------------------------------------
// func encodeBlock(dst, src []byte) (d int)
//
// All local variables fit into registers, other than "var table". The register
// allocation:
// - R3 . .
// - R4 . .
// - R5 64 shift
// - R6 72 &src[0], tableSize
// - R7 80 &src[s]
// - R8 88 &dst[d]
// - R9 96 sLimit
// - R10 . &src[nextEmit]
// - R11 104 prevHash, currHash, nextHash, offset
// - R12 112 &src[base], skip
// - R13 . &src[nextS], &src[len(src) - 8]
// - R14 . len(src), bytesBetweenHashLookups, &src[len(src)], x
// - R15 120 candidate
// - R16 . hash constant, 0x1e35a7bd
// - R17 . &table
// - . 128 table
//
// The second column (64, 72, etc) is the stack offset to spill the registers
// when calling other functions. We could pack this slightly tighter, but it's
// simpler to have a dedicated spill map independent of the function called.
//
// "var table [maxTableSize]uint16" takes up 32768 bytes of stack space. An
// extra 64 bytes, to call other functions, and an extra 64 bytes, to spill
// local variables (registers) during calls gives 32768 + 64 + 64 = 32896.
TEXT ·encodeBlock(SB), 0, $32896-56
MOVD dst_base+0(FP), R8
MOVD src_base+24(FP), R7
MOVD src_len+32(FP), R14
// shift, tableSize := uint32(32-8), 1<<8
MOVD $24, R5
MOVD $256, R6
MOVW $0xa7bd, R16
MOVKW $(0x1e35<<16), R16
calcShift:
// for ; tableSize < maxTableSize && tableSize < len(src); tableSize *= 2 {
// shift--
// }
MOVD $16384, R2
CMP R2, R6
BGE varTable
CMP R14, R6
BGE varTable
SUB $1, R5, R5
LSL $1, R6, R6
B calcShift
varTable:
// var table [maxTableSize]uint16
//
// In the asm code, unlike the Go code, we can zero-initialize only the
// first tableSize elements. Each uint16 element is 2 bytes and each
// iterations writes 64 bytes, so we can do only tableSize/32 writes
// instead of the 2048 writes that would zero-initialize all of table's
// 32768 bytes. This clear could overrun the first tableSize elements, but
// it won't overrun the allocated stack size.
ADD $128, RSP, R17
MOVD R17, R4
// !!! R6 = &src[tableSize]
ADD R6<<1, R17, R6
memclr:
STP.P (ZR, ZR), 64(R4)
STP (ZR, ZR), -48(R4)
STP (ZR, ZR), -32(R4)
STP (ZR, ZR), -16(R4)
CMP R4, R6
BHI memclr
// !!! R6 = &src[0]
MOVD R7, R6
// sLimit := len(src) - inputMargin
MOVD R14, R9
SUB $15, R9, R9
// !!! Pre-emptively spill R5, R6 and R9 to the stack. Their values don't
// change for the rest of the function.
MOVD R5, 64(RSP)
MOVD R6, 72(RSP)
MOVD R9, 96(RSP)
// nextEmit := 0
MOVD R6, R10
// s := 1
ADD $1, R7, R7
// nextHash := hash(load32(src, s), shift)
MOVW 0(R7), R11
MULW R16, R11, R11
LSRW R5, R11, R11
outer:
// for { etc }
// skip := 32
MOVD $32, R12
// nextS := s
MOVD R7, R13
// candidate := 0
MOVD $0, R15
inner0:
// for { etc }
// s := nextS
MOVD R13, R7
// bytesBetweenHashLookups := skip >> 5
MOVD R12, R14
LSR $5, R14, R14
// nextS = s + bytesBetweenHashLookups
ADD R14, R13, R13
// skip += bytesBetweenHashLookups
ADD R14, R12, R12
// if nextS > sLimit { goto emitRemainder }
MOVD R13, R3
SUB R6, R3, R3
CMP R9, R3
BHI emitRemainder
// candidate = int(table[nextHash])
MOVHU 0(R17)(R11<<1), R15
// table[nextHash] = uint16(s)
MOVD R7, R3
SUB R6, R3, R3
MOVH R3, 0(R17)(R11<<1)
// nextHash = hash(load32(src, nextS), shift)
MOVW 0(R13), R11
MULW R16, R11
LSRW R5, R11, R11
// if load32(src, s) != load32(src, candidate) { continue } break
MOVW 0(R7), R3
MOVW (R6)(R15*1), R4
CMPW R4, R3
BNE inner0
fourByteMatch:
// As per the encode_other.go code:
//
// A 4-byte match has been found. We'll later see etc.
// !!! Jump to a fast path for short (<= 16 byte) literals. See the comment
// on inputMargin in encode.go.
MOVD R7, R3
SUB R10, R3, R3
CMP $16, R3
BLE emitLiteralFastPath
// ----------------------------------------
// Begin inline of the emitLiteral call.
//
// d += emitLiteral(dst[d:], src[nextEmit:s])
MOVW R3, R4
SUBW $1, R4, R4
MOVW $60, R2
CMPW R2, R4
BLT inlineEmitLiteralOneByte
MOVW $256, R2
CMPW R2, R4
BLT inlineEmitLiteralTwoBytes
inlineEmitLiteralThreeBytes:
MOVD $0xf4, R1
MOVB R1, 0(R8)
MOVW R4, 1(R8)
ADD $3, R8, R8
B inlineEmitLiteralMemmove
inlineEmitLiteralTwoBytes:
MOVD $0xf0, R1
MOVB R1, 0(R8)
MOVB R4, 1(R8)
ADD $2, R8, R8
B inlineEmitLiteralMemmove
inlineEmitLiteralOneByte:
LSLW $2, R4, R4
MOVB R4, 0(R8)
ADD $1, R8, R8
inlineEmitLiteralMemmove:
// Spill local variables (registers) onto the stack; call; unspill.
//
// copy(dst[i:], lit)
//
// This means calling runtime·memmove(&dst[i], &lit[0], len(lit)), so we push
// R8, R10 and R3 as arguments.
MOVD R8, 8(RSP)
MOVD R10, 16(RSP)
MOVD R3, 24(RSP)
// Finish the "d +=" part of "d += emitLiteral(etc)".
ADD R3, R8, R8
MOVD R7, 80(RSP)
MOVD R8, 88(RSP)
MOVD R15, 120(RSP)
CALL runtime·memmove(SB)
MOVD 64(RSP), R5
MOVD 72(RSP), R6
MOVD 80(RSP), R7
MOVD 88(RSP), R8
MOVD 96(RSP), R9
MOVD 120(RSP), R15
ADD $128, RSP, R17
MOVW $0xa7bd, R16
MOVKW $(0x1e35<<16), R16
B inner1
inlineEmitLiteralEnd:
// End inline of the emitLiteral call.
// ----------------------------------------
emitLiteralFastPath:
// !!! Emit the 1-byte encoding "uint8(len(lit)-1)<<2".
MOVB R3, R4
SUBW $1, R4, R4
AND $0xff, R4, R4
LSLW $2, R4, R4
MOVB R4, (R8)
ADD $1, R8, R8
// !!! Implement the copy from lit to dst as a 16-byte load and store.
// (Encode's documentation says that dst and src must not overlap.)
//
// This always copies 16 bytes, instead of only len(lit) bytes, but that's
// OK. Subsequent iterations will fix up the overrun.
//
// Note that on arm64, it is legal and cheap to issue unaligned 8-byte or
// 16-byte loads and stores. This technique probably wouldn't be as
// effective on architectures that are fussier about alignment.
LDP 0(R10), (R0, R1)
STP (R0, R1), 0(R8)
ADD R3, R8, R8
inner1:
// for { etc }
// base := s
MOVD R7, R12
// !!! offset := base - candidate
MOVD R12, R11
SUB R15, R11, R11
SUB R6, R11, R11
// ----------------------------------------
// Begin inline of the extendMatch call.
//
// s = extendMatch(src, candidate+4, s+4)
// !!! R14 = &src[len(src)]
MOVD src_len+32(FP), R14
ADD R6, R14, R14
// !!! R13 = &src[len(src) - 8]
MOVD R14, R13
SUB $8, R13, R13
// !!! R15 = &src[candidate + 4]
ADD $4, R15, R15
ADD R6, R15, R15
// !!! s += 4
ADD $4, R7, R7
inlineExtendMatchCmp8:
// As long as we are 8 or more bytes before the end of src, we can load and
// compare 8 bytes at a time. If those 8 bytes are equal, repeat.
CMP R13, R7
BHI inlineExtendMatchCmp1
MOVD (R15), R3
MOVD (R7), R4
CMP R4, R3
BNE inlineExtendMatchBSF
ADD $8, R15, R15
ADD $8, R7, R7
B inlineExtendMatchCmp8
inlineExtendMatchBSF:
// If those 8 bytes were not equal, XOR the two 8 byte values, and return
// the index of the first byte that differs.
// RBIT reverses the bit order, then CLZ counts the leading zeros, the
// combination of which finds the least significant bit which is set.
// The arm64 architecture is little-endian, and the shift by 3 converts
// a bit index to a byte index.
EOR R3, R4, R4
RBIT R4, R4
CLZ R4, R4
ADD R4>>3, R7, R7
B inlineExtendMatchEnd
inlineExtendMatchCmp1:
// In src's tail, compare 1 byte at a time.
CMP R7, R14
BLS inlineExtendMatchEnd
MOVB (R15), R3
MOVB (R7), R4
CMP R4, R3
BNE inlineExtendMatchEnd
ADD $1, R15, R15
ADD $1, R7, R7
B inlineExtendMatchCmp1
inlineExtendMatchEnd:
// End inline of the extendMatch call.
// ----------------------------------------
// ----------------------------------------
// Begin inline of the emitCopy call.
//
// d += emitCopy(dst[d:], base-candidate, s-base)
// !!! length := s - base
MOVD R7, R3
SUB R12, R3, R3
inlineEmitCopyLoop0:
// for length >= 68 { etc }
MOVW $68, R2
CMPW R2, R3
BLT inlineEmitCopyStep1
// Emit a length 64 copy, encoded as 3 bytes.
MOVD $0xfe, R1
MOVB R1, 0(R8)
MOVW R11, 1(R8)
ADD $3, R8, R8
SUBW $64, R3, R3
B inlineEmitCopyLoop0
inlineEmitCopyStep1:
// if length > 64 { etc }
MOVW $64, R2
CMPW R2, R3
BLE inlineEmitCopyStep2
// Emit a length 60 copy, encoded as 3 bytes.
MOVD $0xee, R1
MOVB R1, 0(R8)
MOVW R11, 1(R8)
ADD $3, R8, R8
SUBW $60, R3, R3
inlineEmitCopyStep2:
// if length >= 12 || offset >= 2048 { goto inlineEmitCopyStep3 }
MOVW $12, R2
CMPW R2, R3
BGE inlineEmitCopyStep3
MOVW $2048, R2
CMPW R2, R11
BGE inlineEmitCopyStep3
// Emit the remaining copy, encoded as 2 bytes.
MOVB R11, 1(R8)
LSRW $8, R11, R11
LSLW $5, R11, R11
SUBW $4, R3, R3
AND $0xff, R3, R3
LSLW $2, R3, R3
ORRW R3, R11, R11
ORRW $1, R11, R11
MOVB R11, 0(R8)
ADD $2, R8, R8
B inlineEmitCopyEnd
inlineEmitCopyStep3:
// Emit the remaining copy, encoded as 3 bytes.
SUBW $1, R3, R3
LSLW $2, R3, R3
ORRW $2, R3, R3
MOVB R3, 0(R8)
MOVW R11, 1(R8)
ADD $3, R8, R8
inlineEmitCopyEnd:
// End inline of the emitCopy call.
// ----------------------------------------
// nextEmit = s
MOVD R7, R10
// if s >= sLimit { goto emitRemainder }
MOVD R7, R3
SUB R6, R3, R3
CMP R3, R9
BLS emitRemainder
// As per the encode_other.go code:
//
// We could immediately etc.
// x := load64(src, s-1)
MOVD -1(R7), R14
// prevHash := hash(uint32(x>>0), shift)
MOVW R14, R11
MULW R16, R11, R11
LSRW R5, R11, R11
// table[prevHash] = uint16(s-1)
MOVD R7, R3
SUB R6, R3, R3
SUB $1, R3, R3
MOVHU R3, 0(R17)(R11<<1)
// currHash := hash(uint32(x>>8), shift)
LSR $8, R14, R14
MOVW R14, R11
MULW R16, R11, R11
LSRW R5, R11, R11
// candidate = int(table[currHash])
MOVHU 0(R17)(R11<<1), R15
// table[currHash] = uint16(s)
ADD $1, R3, R3
MOVHU R3, 0(R17)(R11<<1)
// if uint32(x>>8) == load32(src, candidate) { continue }
MOVW (R6)(R15*1), R4
CMPW R4, R14
BEQ inner1
// nextHash = hash(uint32(x>>16), shift)
LSR $8, R14, R14
MOVW R14, R11
MULW R16, R11, R11
LSRW R5, R11, R11
// s++
ADD $1, R7, R7
// break out of the inner1 for loop, i.e. continue the outer loop.
B outer
emitRemainder:
// if nextEmit < len(src) { etc }
MOVD src_len+32(FP), R3
ADD R6, R3, R3
CMP R3, R10
BEQ encodeBlockEnd
// d += emitLiteral(dst[d:], src[nextEmit:])
//
// Push args.
MOVD R8, 8(RSP)
MOVD $0, 16(RSP) // Unnecessary, as the callee ignores it, but conservative.
MOVD $0, 24(RSP) // Unnecessary, as the callee ignores it, but conservative.
MOVD R10, 32(RSP)
SUB R10, R3, R3
MOVD R3, 40(RSP)
MOVD R3, 48(RSP) // Unnecessary, as the callee ignores it, but conservative.
// Spill local variables (registers) onto the stack; call; unspill.
MOVD R8, 88(RSP)
CALL ·emitLiteral(SB)
MOVD 88(RSP), R8
// Finish the "d +=" part of "d += emitLiteral(etc)".
MOVD 56(RSP), R1
ADD R1, R8, R8
encodeBlockEnd:
MOVD dst_base+0(FP), R3
SUB R3, R8, R8
MOVD R8, d+48(FP)
RET

View File

@ -1,30 +0,0 @@
// Copyright 2016 The Snappy-Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !appengine
// +build gc
// +build !noasm
// +build amd64 arm64
package snappy
// emitLiteral has the same semantics as in encode_other.go.
//
//go:noescape
func emitLiteral(dst, lit []byte) int
// emitCopy has the same semantics as in encode_other.go.
//
//go:noescape
func emitCopy(dst []byte, offset, length int) int
// extendMatch has the same semantics as in encode_other.go.
//
//go:noescape
func extendMatch(src []byte, i, j int) int
// encodeBlock has the same semantics as in encode_other.go.
//
//go:noescape
func encodeBlock(dst, src []byte) (d int)

View File

@ -1 +0,0 @@
module github.com/golang/snappy

View File

@ -26,3 +26,267 @@ DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
------------------
Files: gzhttp/*
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------------------
Files: s2/cmd/internal/readahead/*
The MIT License (MIT)
Copyright (c) 2015 Klaus Post
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
---------------------
Files: snappy/*
Files: internal/snapref/*
Copyright (c) 2011 The Snappy-Go Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

View File

@ -17,6 +17,10 @@ This package provides various compression algorithms.
# changelog
* Aug 12, 2021 (v1.13.4)
* Add [snappy replacement package](https://github.com/klauspost/compress/tree/master/snappy).
* zstd: Fix incorrect encoding in "best" mode [#415](https://github.com/klauspost/compress/pull/415)
* Aug 3, 2021 (v1.13.3)
* zstd: Improve Best compression [#404](https://github.com/klauspost/compress/pull/404)

View File

@ -9,10 +9,10 @@ package flate
import (
"bufio"
"compress/flate"
"fmt"
"io"
"math/bits"
"strconv"
"sync"
)
@ -41,11 +41,7 @@ var fixedOnce sync.Once
var fixedHuffmanDecoder huffmanDecoder
// A CorruptInputError reports the presence of corrupt input at a given offset.
type CorruptInputError int64
func (e CorruptInputError) Error() string {
return "flate: corrupt input before offset " + strconv.FormatInt(int64(e), 10)
}
type CorruptInputError = flate.CorruptInputError
// An InternalError reports an error in the flate code itself.
type InternalError string
@ -55,26 +51,12 @@ func (e InternalError) Error() string { return "flate: internal error: " + strin
// A ReadError reports an error encountered while reading input.
//
// Deprecated: No longer returned.
type ReadError struct {
Offset int64 // byte offset where error occurred
Err error // error returned by underlying Read
}
func (e *ReadError) Error() string {
return "flate: read error at offset " + strconv.FormatInt(e.Offset, 10) + ": " + e.Err.Error()
}
type ReadError = flate.ReadError
// A WriteError reports an error encountered while writing output.
//
// Deprecated: No longer returned.
type WriteError struct {
Offset int64 // byte offset where error occurred
Err error // error returned by underlying Write
}
func (e *WriteError) Error() string {
return "flate: write error at offset " + strconv.FormatInt(e.Offset, 10) + ": " + e.Err.Error()
}
type WriteError = flate.WriteError
// Resetter resets a ReadCloser returned by NewReader or NewReaderDict to
// to switch to a new underlying Reader. This permits reusing a ReadCloser

View File

@ -1,4 +1,5 @@
//+build !amd64
//go:build !amd64
// +build !amd64
package flate

View File

@ -1,5 +1,3 @@
module github.com/klauspost/compress
go 1.13
require github.com/golang/snappy v0.0.3 // indirect
go 1.15

View File

@ -1,2 +0,0 @@
github.com/golang/snappy v0.0.3 h1:fHPg5GQYlCeLIPB9BZqMVR5nR9A+IM5zcgeTdjMYmLA=
github.com/golang/snappy v0.0.3/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=

View File

@ -2,7 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package snappy
package snapref
import (
"encoding/binary"
@ -118,32 +118,23 @@ func (r *Reader) readFull(p []byte, allowEOF bool) (ok bool) {
return true
}
// Read satisfies the io.Reader interface.
func (r *Reader) Read(p []byte) (int, error) {
if r.err != nil {
return 0, r.err
}
for {
if r.i < r.j {
n := copy(p, r.decoded[r.i:r.j])
r.i += n
return n, nil
}
func (r *Reader) fill() error {
for r.i >= r.j {
if !r.readFull(r.buf[:4], true) {
return 0, r.err
return r.err
}
chunkType := r.buf[0]
if !r.readHeader {
if chunkType != chunkTypeStreamIdentifier {
r.err = ErrCorrupt
return 0, r.err
return r.err
}
r.readHeader = true
}
chunkLen := int(r.buf[1]) | int(r.buf[2])<<8 | int(r.buf[3])<<16
if chunkLen > len(r.buf) {
r.err = ErrUnsupported
return 0, r.err
return r.err
}
// The chunk types are specified at
@ -153,11 +144,11 @@ func (r *Reader) Read(p []byte) (int, error) {
// Section 4.2. Compressed data (chunk type 0x00).
if chunkLen < checksumSize {
r.err = ErrCorrupt
return 0, r.err
return r.err
}
buf := r.buf[:chunkLen]
if !r.readFull(buf, false) {
return 0, r.err
return r.err
}
checksum := uint32(buf[0]) | uint32(buf[1])<<8 | uint32(buf[2])<<16 | uint32(buf[3])<<24
buf = buf[checksumSize:]
@ -165,19 +156,19 @@ func (r *Reader) Read(p []byte) (int, error) {
n, err := DecodedLen(buf)
if err != nil {
r.err = err
return 0, r.err
return r.err
}
if n > len(r.decoded) {
r.err = ErrCorrupt
return 0, r.err
return r.err
}
if _, err := Decode(r.decoded, buf); err != nil {
r.err = err
return 0, r.err
return r.err
}
if crc(r.decoded[:n]) != checksum {
r.err = ErrCorrupt
return 0, r.err
return r.err
}
r.i, r.j = 0, n
continue
@ -186,25 +177,25 @@ func (r *Reader) Read(p []byte) (int, error) {
// Section 4.3. Uncompressed data (chunk type 0x01).
if chunkLen < checksumSize {
r.err = ErrCorrupt
return 0, r.err
return r.err
}
buf := r.buf[:checksumSize]
if !r.readFull(buf, false) {
return 0, r.err
return r.err
}
checksum := uint32(buf[0]) | uint32(buf[1])<<8 | uint32(buf[2])<<16 | uint32(buf[3])<<24
// Read directly into r.decoded instead of via r.buf.
n := chunkLen - checksumSize
if n > len(r.decoded) {
r.err = ErrCorrupt
return 0, r.err
return r.err
}
if !r.readFull(r.decoded[:n], false) {
return 0, r.err
return r.err
}
if crc(r.decoded[:n]) != checksum {
r.err = ErrCorrupt
return 0, r.err
return r.err
}
r.i, r.j = 0, n
continue
@ -213,15 +204,15 @@ func (r *Reader) Read(p []byte) (int, error) {
// Section 4.1. Stream identifier (chunk type 0xff).
if chunkLen != len(magicBody) {
r.err = ErrCorrupt
return 0, r.err
return r.err
}
if !r.readFull(r.buf[:len(magicBody)], false) {
return 0, r.err
return r.err
}
for i := 0; i < len(magicBody); i++ {
if r.buf[i] != magicBody[i] {
r.err = ErrCorrupt
return 0, r.err
return r.err
}
}
continue
@ -230,12 +221,44 @@ func (r *Reader) Read(p []byte) (int, error) {
if chunkType <= 0x7f {
// Section 4.5. Reserved unskippable chunks (chunk types 0x02-0x7f).
r.err = ErrUnsupported
return 0, r.err
return r.err
}
// Section 4.4 Padding (chunk type 0xfe).
// Section 4.6. Reserved skippable chunks (chunk types 0x80-0xfd).
if !r.readFull(r.buf[:chunkLen], false) {
return 0, r.err
return r.err
}
}
return nil
}
// Read satisfies the io.Reader interface.
func (r *Reader) Read(p []byte) (int, error) {
if r.err != nil {
return 0, r.err
}
if err := r.fill(); err != nil {
return 0, err
}
n := copy(p, r.decoded[r.i:r.j])
r.i += n
return n, nil
}
// ReadByte satisfies the io.ByteReader interface.
func (r *Reader) ReadByte() (byte, error) {
if r.err != nil {
return 0, r.err
}
if err := r.fill(); err != nil {
return 0, err
}
c := r.decoded[r.i]
r.i++
return c, nil
}

View File

@ -2,9 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !amd64,!arm64 appengine !gc noasm
package snappy
package snapref
// decode writes the decoding of src to dst. It assumes that the varint-encoded
// length of the decompressed bytes has already been read, and that len(dst)

View File

@ -2,7 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package snappy
package snapref
import (
"encoding/binary"

View File

@ -2,9 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !amd64,!arm64 appengine !gc noasm
package snappy
package snapref
func load32(b []byte, i int) uint32 {
b = b[i : i+4 : len(b)] // Help the compiler eliminate bounds checks on the next line.

View File

@ -2,7 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package snappy implements the Snappy compression format. It aims for very
// Package snapref implements the Snappy compression format. It aims for very
// high speeds and reasonable compression.
//
// There are actually two Snappy formats: block and stream. They are related,
@ -17,7 +17,7 @@
//
// The canonical, C++ implementation is at https://github.com/google/snappy and
// it only implements the block format.
package snappy // import "github.com/golang/snappy"
package snapref
import (
"hash/crc32"

View File

@ -2,4 +2,3 @@ module github.com/klauspost/compress
go 1.16
require github.com/golang/snappy v0.0.3 // indirect

View File

@ -1,2 +0,0 @@
github.com/golang/snappy v0.0.3 h1:fHPg5GQYlCeLIPB9BZqMVR5nR9A+IM5zcgeTdjMYmLA=
github.com/golang/snappy v0.0.3/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=

View File

@ -1,6 +1,5 @@
// +build !appengine
// +build gc
// +build !purego
//go:build !appengine && gc && !purego
// +build !appengine,gc,!purego
package xxhash

View File

@ -1,3 +1,4 @@
//go:build !amd64 || appengine || !gc || purego
// +build !amd64 appengine !gc purego
package xxhash

View File

@ -10,8 +10,8 @@ import (
"hash/crc32"
"io"
"github.com/golang/snappy"
"github.com/klauspost/compress/huff0"
snappy "github.com/klauspost/compress/internal/snapref"
)
const (

View File

@ -64,8 +64,9 @@ func (r *pooledZipReader) Close() error {
}
type pooledZipWriter struct {
mu sync.Mutex // guards Close and Read
enc *Encoder
mu sync.Mutex // guards Close and Read
enc *Encoder
pool *sync.Pool
}
func (w *pooledZipWriter) Write(p []byte) (n int, err error) {
@ -83,7 +84,7 @@ func (w *pooledZipWriter) Close() error {
var err error
if w.enc != nil {
err = w.enc.Close()
zipReaderPool.Put(w.enc)
w.pool.Put(w.enc)
w.enc = nil
}
return err
@ -104,7 +105,7 @@ func ZipCompressor(opts ...EOption) func(w io.Writer) (io.WriteCloser, error) {
return nil, err
}
}
return &pooledZipWriter{enc: enc}, nil
return &pooledZipWriter{enc: enc, pool: &pool}, nil
}
}

View File

@ -38,6 +38,8 @@ var (
// CategoryRange allows the upper bound on the category range to be adjusted
CategoryRange = DefaultCategoryRange
privContainerMountLabel string
)
// Context is a representation of the SELinux label broken into 4 parts
@ -280,5 +282,7 @@ func GetDefaultContextWithLevel(user, level, scon string) (string, error) {
// PrivContainerMountLabel returns mount label for privileged containers
func PrivContainerMountLabel() string {
// Make sure label is initialized.
_ = label("")
return privContainerMountLabel
}

View File

@ -12,7 +12,6 @@ import (
"os"
"path"
"path/filepath"
"regexp"
"strconv"
"strings"
"sync"
@ -34,8 +33,6 @@ const (
xattrNameSelinux = "security.selinux"
)
var policyRoot = filepath.Join(selinuxDir, readConfig(selinuxTypeTag))
type selinuxState struct {
enabledSet bool
enabled bool
@ -70,7 +67,6 @@ const (
)
var (
assignRegex = regexp.MustCompile(`^([^=]+)=(.*)$`)
readOnlyFileLabel string
state = selinuxState{
mcsList: make(map[string]bool),
@ -79,8 +75,24 @@ var (
// for attrPath()
attrPathOnce sync.Once
haveThreadSelf bool
// for policyRoot()
policyRootOnce sync.Once
policyRootVal string
// for label()
loadLabelsOnce sync.Once
labels map[string]string
)
func policyRoot() string {
policyRootOnce.Do(func() {
policyRootVal = filepath.Join(selinuxDir, readConfig(selinuxTypeTag))
})
return policyRootVal
}
func (s *selinuxState) setEnable(enabled bool) bool {
s.Lock()
defer s.Unlock()
@ -222,7 +234,7 @@ func readConfig(target string) string {
scanner := bufio.NewScanner(in)
for scanner.Scan() {
line := strings.TrimSpace(scanner.Text())
line := bytes.TrimSpace(scanner.Bytes())
if len(line) == 0 {
// Skip blank lines
continue
@ -231,11 +243,12 @@ func readConfig(target string) string {
// Skip comments
continue
}
if groups := assignRegex.FindStringSubmatch(line); groups != nil {
key, val := strings.TrimSpace(groups[1]), strings.TrimSpace(groups[2])
if key == target {
return strings.Trim(val, "\"")
}
fields := bytes.SplitN(line, []byte{'='}, 2)
if len(fields) != 2 {
continue
}
if bytes.Equal(fields[0], []byte(target)) {
return string(bytes.Trim(fields[1], `"`))
}
}
return ""
@ -274,12 +287,15 @@ func readCon(fpath string) (string, error) {
if err := isProcHandle(in); err != nil {
return "", err
}
return readConFd(in)
}
var retval string
if _, err := fmt.Fscanf(in, "%s", &retval); err != nil {
func readConFd(in *os.File) (string, error) {
data, err := ioutil.ReadAll(in)
if err != nil {
return "", err
}
return strings.Trim(retval, "\x00"), nil
return string(bytes.TrimSuffix(data, []byte{0})), nil
}
// classIndex returns the int index for an object class in the loaded policy,
@ -389,7 +405,7 @@ func writeCon(fpath, val string) error {
_, err = out.Write(nil)
}
if err != nil {
return &os.PathError{Op: "write", Path: fpath, Err: err}
return err
}
return nil
}
@ -664,11 +680,7 @@ func readWriteCon(fpath string, val string) (string, error) {
return "", err
}
var retval string
if _, err := fmt.Fscanf(f, "%s", &retval); err != nil {
return "", err
}
return strings.Trim(retval, "\x00"), nil
return readConFd(f)
}
// setExecLabel sets the SELinux label that the kernel will use for any programs
@ -723,10 +735,10 @@ func keyLabel() (string, error) {
// get returns the Context as a string
func (c Context) get() string {
if c["level"] != "" {
return fmt.Sprintf("%s:%s:%s:%s", c["user"], c["role"], c["type"], c["level"])
if level := c["level"]; level != "" {
return c["user"] + ":" + c["role"] + ":" + c["type"] + ":" + level
}
return fmt.Sprintf("%s:%s:%s", c["user"], c["role"], c["type"])
return c["user"] + ":" + c["role"] + ":" + c["type"]
}
// newContext creates a new Context struct from the specified label
@ -891,24 +903,21 @@ func openContextFile() (*os.File, error) {
if f, err := os.Open(contextFile); err == nil {
return f, nil
}
lxcPath := filepath.Join(policyRoot, "/contexts/lxc_contexts")
return os.Open(lxcPath)
return os.Open(filepath.Join(policyRoot(), "/contexts/lxc_contexts"))
}
var labels, privContainerMountLabel = loadLabels()
func loadLabels() (map[string]string, string) {
labels := make(map[string]string)
func loadLabels() {
labels = make(map[string]string)
in, err := openContextFile()
if err != nil {
return labels, ""
return
}
defer in.Close()
scanner := bufio.NewScanner(in)
for scanner.Scan() {
line := strings.TrimSpace(scanner.Text())
line := bytes.TrimSpace(scanner.Bytes())
if len(line) == 0 {
// Skip blank lines
continue
@ -917,38 +926,47 @@ func loadLabels() (map[string]string, string) {
// Skip comments
continue
}
if groups := assignRegex.FindStringSubmatch(line); groups != nil {
key, val := strings.TrimSpace(groups[1]), strings.TrimSpace(groups[2])
labels[key] = strings.Trim(val, "\"")
fields := bytes.SplitN(line, []byte{'='}, 2)
if len(fields) != 2 {
continue
}
key, val := bytes.TrimSpace(fields[0]), bytes.TrimSpace(fields[1])
labels[string(key)] = string(bytes.Trim(val, `"`))
}
con, _ := NewContext(labels["file"])
con["level"] = fmt.Sprintf("s0:c%d,c%d", maxCategory-2, maxCategory-1)
reserveLabel(con.get())
return labels, con.get()
privContainerMountLabel = con.get()
reserveLabel(privContainerMountLabel)
}
func label(key string) string {
loadLabelsOnce.Do(func() {
loadLabels()
})
return labels[key]
}
// kvmContainerLabels returns the default processLabel and mountLabel to be used
// for kvm containers by the calling process.
func kvmContainerLabels() (string, string) {
processLabel := labels["kvm_process"]
processLabel := label("kvm_process")
if processLabel == "" {
processLabel = labels["process"]
processLabel = label("process")
}
return addMcs(processLabel, labels["file"])
return addMcs(processLabel, label("file"))
}
// initContainerLabels returns the default processLabel and file labels to be
// used for containers running an init system like systemd by the calling process.
func initContainerLabels() (string, string) {
processLabel := labels["init_process"]
processLabel := label("init_process")
if processLabel == "" {
processLabel = labels["process"]
processLabel = label("process")
}
return addMcs(processLabel, labels["file"])
return addMcs(processLabel, label("file"))
}
// containerLabels returns an allocated processLabel and fileLabel to be used for
@ -958,9 +976,9 @@ func containerLabels() (processLabel string, fileLabel string) {
return "", ""
}
processLabel = labels["process"]
fileLabel = labels["file"]
readOnlyFileLabel = labels["ro_file"]
processLabel = label("process")
fileLabel = label("file")
readOnlyFileLabel = label("ro_file")
if processLabel == "" || fileLabel == "" {
return "", fileLabel
@ -1180,15 +1198,14 @@ func getDefaultContextFromReaders(c *defaultSECtx) (string, error) {
}
func getDefaultContextWithLevel(user, level, scon string) (string, error) {
userPath := filepath.Join(policyRoot, selinuxUsersDir, user)
defaultPath := filepath.Join(policyRoot, defaultContexts)
userPath := filepath.Join(policyRoot(), selinuxUsersDir, user)
fu, err := os.Open(userPath)
if err != nil {
return "", err
}
defer fu.Close()
defaultPath := filepath.Join(policyRoot(), defaultContexts)
fd, err := os.Open(defaultPath)
if err != nil {
return "", err

View File

@ -2,8 +2,6 @@
package selinux
const privContainerMountLabel = ""
func setDisabled() {
}
@ -152,3 +150,7 @@ func disableSecOpt() []string {
func getDefaultContextWithLevel(user, level, scon string) (string, error) {
return "", nil
}
func label(_ string) string {
return ""
}

66
vendor/golang.org/x/sync/errgroup/errgroup.go generated vendored Normal file
View File

@ -0,0 +1,66 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package errgroup provides synchronization, error propagation, and Context
// cancelation for groups of goroutines working on subtasks of a common task.
package errgroup
import (
"context"
"sync"
)
// A Group is a collection of goroutines working on subtasks that are part of
// the same overall task.
//
// A zero Group is valid and does not cancel on error.
type Group struct {
cancel func()
wg sync.WaitGroup
errOnce sync.Once
err error
}
// WithContext returns a new Group and an associated Context derived from ctx.
//
// The derived Context is canceled the first time a function passed to Go
// returns a non-nil error or the first time Wait returns, whichever occurs
// first.
func WithContext(ctx context.Context) (*Group, context.Context) {
ctx, cancel := context.WithCancel(ctx)
return &Group{cancel: cancel}, ctx
}
// Wait blocks until all function calls from the Go method have returned, then
// returns the first non-nil error (if any) from them.
func (g *Group) Wait() error {
g.wg.Wait()
if g.cancel != nil {
g.cancel()
}
return g.err
}
// Go calls the given function in a new goroutine.
//
// The first call to return a non-nil error cancels the group; its error will be
// returned by Wait.
func (g *Group) Go(f func() error) {
g.wg.Add(1)
go func() {
defer g.wg.Done()
if err := f(); err != nil {
g.errOnce.Do(func() {
g.err = err
if g.cancel != nil {
g.cancel()
}
})
}
}()
}

15
vendor/modules.txt vendored
View File

@ -7,7 +7,7 @@ github.com/Microsoft/go-winio/backuptar
github.com/Microsoft/go-winio/pkg/guid
github.com/Microsoft/go-winio/pkg/security
github.com/Microsoft/go-winio/vhd
# github.com/Microsoft/hcsshim v0.8.20
# github.com/Microsoft/hcsshim v0.8.22
github.com/Microsoft/hcsshim
github.com/Microsoft/hcsshim/computestorage
github.com/Microsoft/hcsshim/internal/cow
@ -44,6 +44,9 @@ github.com/containerd/cgroups/stats/v1
github.com/containerd/containerd/errdefs
github.com/containerd/containerd/log
github.com/containerd/containerd/platforms
# github.com/containerd/stargz-snapshotter/estargz v0.8.0
github.com/containerd/stargz-snapshotter/estargz
github.com/containerd/stargz-snapshotter/estargz/errorutil
# github.com/containers/common v0.43.2
github.com/containers/common/pkg/auth
github.com/containers/common/pkg/capabilities
@ -115,7 +118,7 @@ github.com/containers/ocicrypt/keywrap/pkcs7
github.com/containers/ocicrypt/spec
github.com/containers/ocicrypt/utils
github.com/containers/ocicrypt/utils/keyprovider
# github.com/containers/storage v1.35.0
# github.com/containers/storage v1.36.0
github.com/containers/storage
github.com/containers/storage/drivers
github.com/containers/storage/drivers/aufs
@ -219,8 +222,6 @@ github.com/golang/protobuf/ptypes
github.com/golang/protobuf/ptypes/any
github.com/golang/protobuf/ptypes/duration
github.com/golang/protobuf/ptypes/timestamp
# github.com/golang/snappy v0.0.3
github.com/golang/snappy
# github.com/google/go-intervals v0.0.2
github.com/google/go-intervals/intervalset
# github.com/google/uuid v1.2.0
@ -237,11 +238,12 @@ github.com/imdario/mergo
github.com/inconshreveable/mousetrap
# github.com/json-iterator/go v1.1.11
github.com/json-iterator/go
# github.com/klauspost/compress v1.13.4
# github.com/klauspost/compress v1.13.5
github.com/klauspost/compress
github.com/klauspost/compress/flate
github.com/klauspost/compress/fse
github.com/klauspost/compress/huff0
github.com/klauspost/compress/internal/snapref
github.com/klauspost/compress/zstd
github.com/klauspost/compress/zstd/internal/xxhash
# github.com/klauspost/pgzip v1.2.5
@ -281,7 +283,7 @@ github.com/opencontainers/runc/libcontainer/user
github.com/opencontainers/runc/libcontainer/userns
# github.com/opencontainers/runtime-spec v1.0.3-0.20210326190908-1c3f411f0417
github.com/opencontainers/runtime-spec/specs-go
# github.com/opencontainers/selinux v1.8.4
# github.com/opencontainers/selinux v1.8.5
github.com/opencontainers/selinux/go-selinux
github.com/opencontainers/selinux/go-selinux/label
github.com/opencontainers/selinux/pkg/pwalk
@ -376,6 +378,7 @@ golang.org/x/net/internal/timeseries
golang.org/x/net/proxy
golang.org/x/net/trace
# golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
golang.org/x/sync/errgroup
golang.org/x/sync/semaphore
# golang.org/x/sys v0.0.0-20210820121016-41cdb8703e55
golang.org/x/sys/execabs