docs: update docs

README.md

@@ -8,6 +8,24 @@ install
 go get https://github.com/phodal/coca
 ```
 
+
+help:
+
+```
+Usage:
+  coca [command]
+
+Available Commands:
+  analysis    analysis package
+  api         scan api
+  call        call graph api
+  concept     concept api
+  help        Help about any command
+  refactor    auto refactor code
+
+```
+
+
 Analysis
 
 ```
@@ -53,3 +71,10 @@ go get github.com/onsi/gomega
 ### Refs
 
 [https://github.com/MontFerret/ferret](https://github.com/MontFerret/ferret)
+
+License
+---
+
+[![Phodal's Idea](http://brand.phodal.com/shields/idea-small.svg)](http://ideas.phodal.com/)
+
+@ 2019 A [Phodal Huang](https://www.phodal.com)'s [Idea](http://github.com/phodal/ideas).  This code is distributed under the MIT license. See `LICENSE` in this directory.

cmd/api.go

@@ -28,6 +28,6 @@ var apiCmd *cobra.Command = &cobra.Command{
 func init() {
 	rootCmd.AddCommand(apiCmd)
 
-	rootCmd.PersistentFlags().StringP("path", "p", "", "path")
-	rootCmd.PersistentFlags().StringP("dependence", "d", "", "get dependence file")
+	apiCmd.PersistentFlags().StringP("path", "p", "", "path")
+	apiCmd.PersistentFlags().StringP("dependence", "d", "", "get dependence file")
 }

cmd/root.go

@@ -5,9 +5,6 @@ import (
 )
 
 var (
-	// Used for flags.
-	cfgFile string
-
 	rootCmd = &cobra.Command{
 		Use:   "coca",
 		Short: "A generator for Cobra based Applications",
@@ -19,9 +16,3 @@ func Execute() error {
 	return rootCmd.Execute()
 }
 
-func init() {
-	rootCmd.AddCommand(analysisCmd)
-
-	rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.cobra.yaml)")
-}
-