diff options
Diffstat (limited to 'cmd/podman/save.go')
| -rw-r--r-- | cmd/podman/save.go | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/cmd/podman/save.go b/cmd/podman/save.go index ba5209f34..ab421add6 100644 --- a/cmd/podman/save.go +++ b/cmd/podman/save.go @@ -1,20 +1,25 @@ package main import ( - "os" - "github.com/containers/libpod/cmd/podman/cliconfig" "github.com/containers/libpod/libpod/adapter" + "github.com/containers/libpod/pkg/util" "github.com/pkg/errors" "github.com/sirupsen/logrus" "github.com/spf13/cobra" + "os" + "strings" ) const ( ociManifestDir = "oci-dir" + ociArchive = "oci-archive" v2s2ManifestDir = "docker-dir" + v2s2Archive = "docker-archive" ) +var validFormats = []string{ociManifestDir, ociArchive, v2s2ManifestDir, v2s2Archive} + var ( saveCommand cliconfig.SaveValues saveDescription = ` @@ -30,6 +35,16 @@ var ( saveCommand.GlobalFlags = MainGlobalOpts return saveCmd(&saveCommand) }, + Args: func(cmd *cobra.Command, args []string) error { + format, err := cmd.Flags().GetString("format") + if err != nil { + return err + } + if !util.StringInSlice(format, validFormats) { + return errors.Errorf("format value must be one of %s", strings.Join(validFormats, " ")) + } + return nil + }, Example: `podman save --quiet -o myimage.tar imageID podman save --format docker-dir -o ubuntu-dir ubuntu podman save > alpine-all.tar alpine:latest`, @@ -41,7 +56,7 @@ func init() { saveCommand.SetUsageTemplate(UsageTemplate()) flags := saveCommand.Flags() flags.BoolVar(&saveCommand.Compress, "compress", false, "Compress tarball image layers when saving to a directory using the 'dir' transport. (default is same compression type as source)") - flags.StringVar(&saveCommand.Format, "format", "docker-archive", "Save image to oci-archive, oci-dir (directory with oci manifest type), docker-dir (directory with v2s2 manifest type)") + flags.StringVar(&saveCommand.Format, "format", v2s2Archive, "Save image to oci-archive, oci-dir (directory with oci manifest type), docker-archive, docker-dir (directory with v2s2 manifest type)") flags.StringVarP(&saveCommand.Output, "output", "o", "/dev/stdout", "Write to a file, default is STDOUT") flags.BoolVarP(&saveCommand.Quiet, "quiet", "q", false, "Suppress the output") } |