Version 0.2.

api/api.go

@@ -10,6 +10,7 @@ import (
 	"nanny/pkg/nanny"
 	"nanny/pkg/notifier"
 	"nanny/pkg/storage"
+	"nanny/pkg/version"
 
 	"github.com/gorilla/mux"
 	log "github.com/mgutz/logxi"
@@ -234,7 +235,7 @@ func depWrap(nanny *nanny.Nanny, notifiers notifiers, storage storage.Storage, h
 // versionHandler simply returns version of this nanny.
 func versionHandler(w http.ResponseWriter, req *http.Request) error {
 	w.WriteHeader(http.StatusOK)
-	_, err := io.WriteString(w, "Nanny v0.1")
+	_, err := io.WriteString(w, version.VersionString)
 	return errors.Wrap(err, "unable to reply with version")
 }
 

cmd/version.go

@@ -0,0 +1,22 @@
+package cmd
+
+import (
+	"fmt"
+
+	"nanny/pkg/version"
+
+	"github.com/spf13/cobra"
+)
+
+// versionCmd represents the version command
+var versionCmd = &cobra.Command{
+	Use:   "version",
+	Short: "Print Nanny version",
+	Run: func(cmd *cobra.Command, args []string) {
+		fmt.Println(version.VersionString)
+	},
+}
+
+func init() {
+	RootCmd.AddCommand(versionCmd)
+}

pkg/version/version.go

@@ -0,0 +1,7 @@
+package version
+
+// Version is, suprisingly nanny version.
+const Version = "0.2"
+
+// VersionString to have it nice.
+const VersionString = "Nanny v" + Version