Migrate --dest-ostree-tmp-dir to imageDestOptions

Signed-off-by: Miloslav Trmač <mitr@redhat.com>

cmd/skopeo/copy.go

@@ -84,11 +84,6 @@ func copyCmd(global *globalOptions) cli.Command {
 				Usage:       "Sign the image using a GPG key with the specified `FINGERPRINT`",
 				Destination: &opts.signByFingerprint,
 			},
-			cli.StringFlag{
-				Name:  "dest-ostree-tmp-dir",
-				Value: "",
-				Usage: "`DIRECTORY` to use for OSTree temporary files",
-			},
 			cli.GenericFlag{
 				Name:  "format, f",
 				Usage: "`MANIFEST TYPE` (oci, v2s1, or v2s2) to use when saving image to directory using the 'dir:' transport (default is manifest type of source)",

cmd/skopeo/utils.go

@@ -65,13 +65,14 @@ func imageFlags(global *globalOptions, flagPrefix, credsOptionAlias string) ([]c
 	}, &opts
 }
 
+// contextFromImageOptions returns a *types.SystemContext corresponding to opts.
+// It is guaranteed to return a fresh instance, so it is safe to make additional updates to it.
 func contextFromImageOptions(c *cli.Context, opts *imageOptions) (*types.SystemContext, error) {
 	ctx := &types.SystemContext{
 		RegistriesDirPath:    opts.global.registriesDirPath,
 		ArchitectureChoice:   opts.global.overrideArch,
 		OSChoice:             opts.global.overrideOS,
 		DockerCertPath:       opts.dockerCertPath,
-		OSTreeTmpDirPath:     c.String(opts.flagPrefix + "ostree-tmp-dir"),
 		OCISharedBlobDirPath: opts.sharedBlobDir,
 		DirForceCompress:     c.Bool(opts.flagPrefix + "compress"),
 		AuthFilePath:         c.String("authfile"),
@@ -101,6 +102,7 @@ func contextFromImageOptions(c *cli.Context, opts *imageOptions) (*types.SystemC
 // imageDestOptions is a superset of imageOptions specialized for iamge destinations.
 type imageDestOptions struct {
 	*imageOptions
+	osTreeTmpDir string // A directory to use for OSTree temporary files
 }
 
 // imageDestFlags prepares a collection of CLI flags writing into imageDestOptions, and the managed imageDestOptions structure.
@@ -108,15 +110,24 @@ func imageDestFlags(global *globalOptions, flagPrefix, credsOptionAlias string)
 	genericFlags, genericOptions := imageFlags(global, flagPrefix, credsOptionAlias)
 	opts := imageDestOptions{imageOptions: genericOptions}
 
-	return append(genericFlags, []cli.Flag{}...), &opts
+	return append(genericFlags, []cli.Flag{
+		cli.StringFlag{
+			Name:        flagPrefix + "ostree-tmp-dir",
+			Usage:       "`DIRECTORY` to use for OSTree temporary files",
+			Destination: &opts.osTreeTmpDir,
+		},
+	}...), &opts
 }
 
+// contextFromImageDestOptions returns a *types.SystemContext corresponding to opts.
+// It is guaranteed to return a fresh instance, so it is safe to make additional updates to it.
 func contextFromImageDestOptions(c *cli.Context, opts *imageDestOptions) (*types.SystemContext, error) {
 	ctx, err := contextFromImageOptions(c, opts.imageOptions)
 	if err != nil {
 		return nil, err
 	}
 
+	ctx.OSTreeTmpDirPath = opts.osTreeTmpDir
 	return ctx, err
 }
 

cmd/skopeo/utils_test.go

@@ -87,7 +87,6 @@ func TestContextFromImageOptions(t *testing.T) {
 	}, []string{
 		"--authfile", "/srv/authfile",
 		"--dest-cert-dir", "/srv/cert-dir",
-		"--dest-ostree-tmp-dir", "/srv/ostree-tmp-dir",
 		"--dest-shared-blob-dir", "/srv/shared-blob-dir",
 		"--dest-compress=true",
 		"--dest-daemon-host", "daemon-host.example.com",
@@ -105,7 +104,6 @@ func TestContextFromImageOptions(t *testing.T) {
 		DockerCertPath:                    "/srv/cert-dir",
 		DockerInsecureSkipTLSVerify:       types.OptionalBoolTrue,
 		DockerAuthConfig:                  &types.DockerAuthConfig{Username: "creds-user", Password: "creds-password"},
-		OSTreeTmpDirPath:                  "/srv/ostree-tmp-dir",
 		DockerDaemonCertPath:              "/srv/cert-dir",
 		DockerDaemonHost:                  "daemon-host.example.com",
 		DockerDaemonInsecureSkipTLSVerify: true,