require 'shellwords'

class RuboCop::Git::Commit
  # ref. https://github.com/thoughtbot/hound/blob/d2f3933/app/models/commit.rb
  def initialize(options)
    @options = options
  end

  def file_content(filename)
    if @options.cached
      `git show :#{filename.shellescape}`
    elsif @options.commit_last
      `git show #{@options.commit_last.shellescape}:#{filename.shellescape}`
    else
      File.read(filename)
    end
  end
end