diff --git a/dockerd/dockerd.go b/dockerd/dockerd.go index 0f1eb63a87..68dab3a8f8 100644 --- a/dockerd/dockerd.go +++ b/dockerd/dockerd.go @@ -21,22 +21,31 @@ import ( "text/tabwriter" ) -func (docker *Docker) CmdUsage(stdin io.ReadCloser, stdout io.Writer, args ...string) error { - fmt.Fprintf(stdout, "Usage: docker COMMAND [arg...]\n\nCommands:\n") - for _, cmd := range [][]interface{}{ - {"run", "Run a command in a container"}, - {"list", "Display a list of containers"}, - {"layers", "Display a list of layers"}, - {"download", "Download a layer from a remote location"}, - {"upload", "Upload a layer"}, - {"wait", "Wait for the state of a container to change"}, - {"stop", "Stop a running container"}, - {"logs", "Fetch the logs of a container"}, - {"export", "Extract changes to a container's filesystem into a new layer"}, - {"attach", "Attach to the standard inputs and outputs of a running container"}, - {"info", "Display system-wide information"}, - } { - fmt.Fprintf(stdout, " %-10.10s%s\n", cmd...) +func (docker *Docker) CmdHelp(stdin io.ReadCloser, stdout io.Writer, args ...string) error { + log.Printf("Help %s\n", args) + if len(args) == 0 { + fmt.Fprintf(stdout, "Usage: docker COMMAND [arg...]\n\nA self-sufficient runtime for linux containers.\n\nCommands:\n") + for _, cmd := range [][]interface{}{ + {"run", "Run a command in a container"}, + {"clone", "Duplicate a container"}, + {"list", "Display a list of containers"}, + {"layers", "Display a list of layers"}, + {"get", "Download a layer from a remote location"}, + {"wait", "Wait for the state of a container to change"}, + {"stop", "Stop a running container"}, + {"logs", "Fetch the logs of a container"}, + {"export", "Extract changes to a container's filesystem into a new layer"}, + {"attach", "Attach to the standard inputs and outputs of a running container"}, + {"info", "Display system-wide information"}, + } { + fmt.Fprintf(stdout, " %-10.10s%s\n", cmd...) + } + } else { + if method := docker.getMethod(args[0]); method == nil { + return errors.New("No such command: " + args[0]) + } else { + method(stdin, stdout, "--help") + } } return nil }