Merge pull request #157 from archite/simple-bash-completion

Adding simple bash completion

Homebrew/mas.rb

@@ -19,6 +19,8 @@ class Mas < Formula
                "-configuration", "Release",
                "SYMROOT=build"
     bin.install "build/mas"
+
+    bash_completion.install "contrib/completion/mas-completion.bash" => "mas"
   end
 
   test do

contrib/completion/mas-completion.bash

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+_mas()
+{
+    local cur prev words cword;
+    if declare -F _init_completions >/dev/null 2>&1; then
+        _init_completion
+    else
+        COMPREPLY=()
+        _get_comp_words_by_ref cur prev words cword
+    fi
+    if [[ $cword -eq 1 ]]; then
+        COMPREPLY=($( compgen -W "$(mas help | tail +3 | awk '{print $1}')" -- "$cur" ));
+        return 0
+    fi
+}
+
+complete -F _mas mas