gitStagedFiles.coffee

gitStagedFiles = (repo, stdout) ->
  files = []
  gitCmd
    args: ['diff-index', '--cached', 'HEAD', '--name-status', '-z']
    cwd: repo.getWorkingDirectory()
    stdout: (data) ->
      files = _prettify(data)
    stderr: (data) ->
      # edge case of no HEAD at initial commit
      if data.toString().includes "ambiguous argument 'HEAD'"
        files = [1]
      else
        notifier.addError data.toString()
        files = []
    exit: (code) -> stdout(files)