Use spf13/cobra for docker search

- Move image command search to `api/client/image/search.go`
- Use cobra :)

Signed-off-by: Vincent Demeester <vincent@sbr.pm>

cobraadaptor/adaptor.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 
 	"github.com/docker/docker/api/client"
+	"github.com/docker/docker/api/client/image"
 	"github.com/docker/docker/api/client/volume"
 	"github.com/docker/docker/cli"
 	cliflags "github.com/docker/docker/cli/flags"
@@ -34,6 +35,7 @@ func NewCobraAdaptor(clientFlags *cliflags.ClientFlags) CobraAdaptor {
 	rootCmd.SetOutput(stdout)
 	rootCmd.AddCommand(
 		volume.NewVolumeCommand(dockerCli),
+		image.NewSearchCommand(dockerCli),
 	)
 
 	rootCmd.PersistentFlags().BoolP("help", "h", false, "Print usage")

required.go

@@ -40,3 +40,19 @@ func RequiresMinArgs(min int) cobra.PositionalArgs {
 		)
 	}
 }
+
+// ExactArgs returns an error if there is not the exact number of args
+func ExactArgs(number int) cobra.PositionalArgs {
+	return func(cmd *cobra.Command, args []string) error {
+		if len(args) == number {
+			return nil
+		}
+		return fmt.Errorf(
+			"\"%s\" requires exactly %d argument(s).\n\nUsage:  %s\n\n%s",
+			cmd.CommandPath(),
+			number,
+			cmd.UseLine(),
+			cmd.Short,
+		)
+	}
+}

usage.go

@@ -39,7 +39,6 @@ var DockerCommandUsage = []Command{
 	{"rmi", "Remove one or more images"},
 	{"run", "Run a command in a new container"},
 	{"save", "Save one or more images to a tar archive"},
-	{"search", "Search the Docker Hub for images"},
 	{"start", "Start one or more stopped containers"},
 	{"stats", "Display a live stream of container(s) resource usage statistics"},
 	{"stop", "Stop a running container"},