check_applies

in lib/grit/git.rb [215:234]

• 17 lines of code
• 5 McCabe index (conditional complexity)

    def check_applies(options={}, head_sha=nil, applies_sha=nil)
      options, head_sha, applies_sha = {}, options, head_sha if !options.is_a?(Hash)
      options = options.dup
      options[:env] &&= options[:env].dup

      git_index = create_tempfile('index', true)
      (options[:env] ||= {}).merge!('GIT_INDEX_FILE' => git_index)
      options[:raise] = true

      status = 0
      begin
        native(:read_tree, options.dup, head_sha)
        stdin = native(:diff, options.dup, "#{applies_sha}^", applies_sha)
        native(:apply, options.merge(:check => true, :cached => true, :input => stdin))
      rescue CommandFailed => fail
        status += fail.exitstatus
      end
      status
    end