add cmd completion

cmd/completion.go

@@ -0,0 +1,49 @@
+/*
+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 (
+	"github.com/spf13/cobra"
+	"os"
+)
+
+// completionCmd represents the completion command
+var completionCmd = &cobra.Command{
+	Use:   "completion",
+	Short: "Generates bash/zsh completion scripts",
+	Long: `To load completion run
+
+. <(bitbucket completion)
+
+To configure your bash shell to load completions for each session add to your bashrc
+
+# ~/.bashrc or ~/.profile
+. <(bitbucket completion)
+`,
+	Run: func(cmd *cobra.Command, args []string) {
+		complet := args[0]
+		if complet == "bash" {
+			rootCmd.GenBashCompletion(os.Stdout)
+		}else if complet == "zsh" {
+			rootCmd.GenZshCompletion(os.Stdout)
+		}
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(completionCmd)
+	completionCmd.SetArgs([]string{""})
+}