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moby--moby/api/client/rename.go

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package client
import (
"fmt"
"strings"
"golang.org/x/net/context"
Cli "github.com/docker/docker/cli"
flag "github.com/docker/docker/pkg/mflag"
)
// CmdRename renames a container.
//
// Usage: docker rename OLD_NAME NEW_NAME
func (cli *DockerCli) CmdRename(args ...string) error {
cmd := Cli.Subcmd("rename", []string{"OLD_NAME NEW_NAME"}, Cli.DockerCommands["rename"].Description, true)
cmd.Require(flag.Exact, 2)
cmd.ParseFlags(args, true)
oldName := strings.TrimSpace(cmd.Arg(0))
newName := strings.TrimSpace(cmd.Arg(1))
if oldName == "" || newName == "" {
return fmt.Errorf("Error: Neither old nor new names may be empty")
}
if err := cli.client.ContainerRename(context.Background(), oldName, newName); err != nil {
fmt.Fprintf(cli.err, "%s\n", err)
return fmt.Errorf("Error: failed to rename container named %s", oldName)
}
return nil
}