U: upgrade command-line tool

cmd/energy/energy.go

@@ -25,6 +25,7 @@ var commands = []*internal.Command{
 	internal.CmdSetenv,
 	internal.CmdEnv,
 	internal.CmdCreate,
+	internal.CmdBuild,
 }
 
 func main() {
@@ -52,6 +53,8 @@ func main() {
 			cc.Index = 5
 		case "create":
 			cc.Index = 6
+		case "build":
+			cc.Index = 7
 		}
 		command := commands[cc.Index]
 		if len(extraArgs) < 1 || extraArgs[len(extraArgs)-1] != "." {

cmd/internal/build.go

@@ -11,3 +11,20 @@
 // 构建编译 energy 项目
 
 package internal
+
+var CmdBuild = &Command{
+	UsageLine: "build",
+	Short:     "build energy project",
+	Long: `
+	Building energy project
+	.  Execute default command
+`,
+}
+
+func init() {
+	CmdBuild.Run = runBuild
+}
+
+func runBuild(c *CommandConfig) error {
+	return nil
+}

cmd/internal/command.go

@@ -19,6 +19,12 @@ type CommandConfig struct {
 	Setenv  Setenv  `command:"setenv"`
 	Env     Env     `command:"env"`
 	Create  Create  `command:"create"`
+	Build   Build   `command:"build"`
+}
+
+type Command struct {
+	Run                    func(c *CommandConfig) error
+	UsageLine, Short, Long string
 }
 
 type Install struct {
@@ -46,10 +52,8 @@ type Version struct {
 	All bool `short:"a" long:"all" description:"show all"`
 }
 
-type Command struct {
-	Run                    func(c *CommandConfig) error
-	UsageLine, Short, Long string
-}
-
 type Create struct {
 }
+
+type Build struct {
+}