Adding bash completion

Fixes #5

cmd/ci.go

@@ -30,9 +30,9 @@ var environmentSuffix string
 var ciCmd = &cobra.Command{
 	Use:   "ci",
 	Short: "Build tools for the CI system",
-	// Run: func(cmd *cobra.Command, args []string) {
-	// 	fmt.Println("config called")
-	// },
+	Run: func(cmd *cobra.Command, args []string) {
+		cmd.HelpFunc()(cmd, args)
+	},
 }
 
 func init() {

cmd/completion.go

+// Copyright © 2019 NAME HERE <EMAIL ADDRESS>
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cmd
+
+import (
+	"os"
+
+	"github.com/spf13/cobra"
+)
+
+// completionCmd represents the completion command
+var completionCmd = &cobra.Command{
+	Use:   "completion",
+	Short: "Generates bash completion scripts",
+	Long: `To load completion run
+
+	source <(devtool completion)
+	
+	To configure your bash shell to load completions for each session add to your bashrc
+	
+	# ~/.bashrc or ~/.profile
+	source <(devtool completion)
+	`,
+	PersistentPreRun: func(cmd *cobra.Command, args []string) {
+		// Do Nothing
+	},
+	Run: func(cmd *cobra.Command, args []string) {
+		rootCmd.GenBashCompletion(os.Stdout)
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(completionCmd)
+
+	// Here you will define your flags and configuration settings.
+
+	// Cobra supports Persistent Flags which will work for this command
+	// and all subcommands, e.g.:
+	// completionCmd.PersistentFlags().String("foo", "", "A help for foo")
+
+	// Cobra supports local flags which will only run when this command
+	// is called directly, e.g.:
+	// completionCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
+}

cmd/config.go

@@ -22,9 +22,9 @@ import (
 var configCmd = &cobra.Command{
 	Use:   "config",
 	Short: "Manage the projects build configuration",
-	// Run: func(cmd *cobra.Command, args []string) {
-	// 	fmt.Println("config called")
-	// },
+	Run: func(cmd *cobra.Command, args []string) {
+		cmd.HelpFunc()(cmd, args)
+	},
 }
 
 func init() {

cmd/root.go

@@ -38,7 +38,12 @@ var rootCmd = &cobra.Command{
 	Long:  `A tool used by software engineering to build applications.`,
 	// Uncomment the following line if your bare application
 	// has an action associated with it:
-	//	Run: func(cmd *cobra.Command, args []string) { },
+	Run: func(cmd *cobra.Command, args []string) {
+		cmd.HelpFunc()(cmd, args)
+	},
+	PersistentPreRun: func(cmd *cobra.Command, args []string) {
+		PrintLogo()
+	},
 }
 
 // Execute adds all child commands to the root command and sets flags appropriately.
@@ -86,11 +91,11 @@ func initConfig() {
 	viper.SetEnvKeyReplacer(replacer)
 
 	// If a config file is found, read it in.
-	if err := viper.ReadInConfig(); err == nil {
-		fmt.Println("Using config file:", viper.ConfigFileUsed())
-	} else {
-		color.Red(err.Error())
-	}
+	// if err := viper.ReadInConfig(); err == nil {
+	// 	fmt.Println("Using config file:", viper.ConfigFileUsed())
+	// } else {
+	// 	color.Red(err.Error())
+	// }
 }
 
 func PrintLogo() {

devtool.go

@@ -3,6 +3,5 @@ package main
 import "git.psu.edu/k8s/devtool/cmd"
 
 func main() {
-	cmd.PrintLogo()
 	cmd.Execute()
 }