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add ability to export filesystem

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Signed-off-by: Avi Deitcher <avi@deitcher.net>
This commit is contained in:
Avi Deitcher 2022-08-29 18:23:43 +03:00
parent 1cf22ed0ac
commit 7e65df33be
1 changed files with 10 additions and 1 deletions
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11
src/cmd/linuxkit/cache_export.go
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@ -18,6 +18,7 @@ func cacheExport(args []string) {
cacheDir := fs.String("cache", defaultLinuxkitCache(), "Directory for caching and finding cached image")
arch := fs.String("arch", runtime.GOARCH, "Architecture to resolve an index to an image, if the provided image name is an index")
outfile := fs.String("outfile", "", "Path to file to save output, '-' for stdout")
format := fs.String("format", "oci", "export format, one of 'oci', 'filesystem'")
if err := fs.Parse(args); err != nil {
log.Fatal("Unable to parse args")
@ -45,7 +46,15 @@ func cacheExport(args []string) {
}
src := p.NewSource(&ref, *arch, desc)
reader, err := src.V1TarReader()
var reader io.ReadCloser
switch *format {
case "oci":
reader, err = src.V1TarReader()
case "filesystem":
reader, err = src.TarReader()
default:
log.Fatalf("requested unknown format %s: %v", name, err)
}
if err != nil {
log.Fatalf("error getting reader for image %s: %v", name, err)
}