cli: refactor to allow definition of subcommands next to their implementation

client/signal.go

@@ -2,11 +2,20 @@ package client
 
 import (
 	"github.com/pkg/errors"
+	"github.com/zrepl/zrepl/cli"
 	"github.com/zrepl/zrepl/config"
 	"github.com/zrepl/zrepl/daemon"
 )
 
-func RunSignal(config *config.Config, args []string) error {
+var SignalCmd = &cli.Subcommand{
+	Use:   "signal [wakeup|reset] JOB",
+	Short: "wake up a job from wait state or abort its current invocation",
+	Run: func(subcommand *cli.Subcommand, args []string) error {
+		return runSignalCmd(subcommand.Config(), args)
+	},
+}
+
+func runSignalCmd(config *config.Config, args []string) error {
 	if len(args) != 2 {
 		return errors.Errorf("Expected 2 arguments: [wakeup|reset] JOB")
 	}