Adding bash completion generation.

cmd/completion.go

@@ -0,0 +1,27 @@
+package cmd
+
+import (
+	"github.com/spf13/cobra"
+)
+
+var completionCmd = &cobra.Command{
+	Use:   "completion",
+	Short: "Create auto completion for bash.",
+	Long: `Create auto completion bash file for australis. Auto completion file must be placed in the correct
+directory in order for bash to pick up the definitions.
+
+Copy australis.completion.sh into the correct folder and rename to australis
+
+In Linux, this directory is usually /etc/bash_completion.d/
+In MacOS this directory is $(brew --prefix)/etc/bash_completion.d if auto completion was install through brew.
+`,
+	PersistentPreRun:  func(cmd *cobra.Command, args []string) {}, //We don't need a realis client for this cmd
+	PersistentPostRun: func(cmd *cobra.Command, args []string) {}, //We don't need a realis client for this cmd
+	Run: func(cmd *cobra.Command, args []string) {
+		rootCmd.GenBashCompletionFile("australis.completion.sh")
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(completionCmd)
+}