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4cb0c93f92
Subcommands can provide multiple usage synopses. Docker-DCO-1.1-Signed-off-by: Josh Hawn <josh.hawn@docker.com> (github: jlhawn)
41 lines
1 KiB
Go
41 lines
1 KiB
Go
package client
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import (
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"net/url"
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flag "github.com/docker/docker/pkg/mflag"
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"github.com/docker/docker/pkg/parsers"
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"github.com/docker/docker/registry"
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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]"}, "Tag an image into a repository", true)
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force := cmd.Bool([]string{"f", "#force", "-force"}, false, "Force")
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cmd.Require(flag.Exact, 2)
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cmd.ParseFlags(args, true)
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var (
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repository, tag = parsers.ParseRepositoryTag(cmd.Arg(1))
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v = url.Values{}
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)
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//Check if the given image name can be resolved
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if err := registry.ValidateRepositoryName(repository); err != nil {
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return err
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}
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v.Set("repo", repository)
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v.Set("tag", tag)
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if *force {
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v.Set("force", "1")
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}
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if _, _, err := readBody(cli.call("POST", "/images/"+cmd.Arg(0)+"/tag?"+v.Encode(), nil, nil)); err != nil {
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return err
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}
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return nil
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}
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