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moby--moby/api/client/tag.go
David Calavera 8b15839ee8 Create interface that clients that talk to the api must fulfill.
Signed-off-by: David Calavera <david.calavera@gmail.com>
2015-12-09 12:04:58 -05:00

52 lines
1.3 KiB
Go

package client
import (
"errors"
"github.com/docker/distribution/reference"
"github.com/docker/docker/api/types"
Cli "github.com/docker/docker/cli"
flag "github.com/docker/docker/pkg/mflag"
"github.com/docker/docker/registry"
)
// CmdTag tags an image into a repository.
//
// Usage: docker tag [OPTIONS] IMAGE[:TAG] [REGISTRYHOST/][USERNAME/]NAME[:TAG]
func (cli *DockerCli) CmdTag(args ...string) error {
cmd := Cli.Subcmd("tag", []string{"IMAGE[:TAG] [REGISTRYHOST/][USERNAME/]NAME[:TAG]"}, Cli.DockerCommands["tag"].Description, true)
force := cmd.Bool([]string{"#f", "#-force"}, false, "Force the tagging even if there's a conflict")
cmd.Require(flag.Exact, 2)
cmd.ParseFlags(args, true)
ref, err := reference.ParseNamed(cmd.Arg(1))
if err != nil {
return err
}
_, isDigested := ref.(reference.Digested)
if isDigested {
return errors.New("refusing to create a tag with a digest reference")
}
tag := ""
tagged, isTagged := ref.(reference.Tagged)
if isTagged {
tag = tagged.Tag()
}
//Check if the given image name can be resolved
if err := registry.ValidateRepositoryName(ref); err != nil {
return err
}
options := types.ImageTagOptions{
ImageID: cmd.Arg(0),
RepositoryName: ref.Name(),
Tag: tag,
Force: *force,
}
return cli.client.ImageTag(options)
}