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