hooks/pre-commit

   1 #!/usr/bin/ruby
   2
   3 ok = true
   4
   5 if IO.popen(["git", "ls-files", "--unmerged"]).read.empty?
   6   need_stash = IO.popen(%w(git diff)).read.length > 0
   7
   8   system("git", "stash", "save", "--keep-index", "--quiet") if need_stash
   9
  10   files = IO.popen(["git", "diff", "--staged", "--name-only"]).readlines.map(&:chomp)
  11
  12   ruby_files = files.select do |file|
  13     file =~ /\.rb$/ || `file --brief --mime-type #{file}` == "text/x-ruby\n"
  14   end
  15
  16   ok &&= system("rubocop", *ruby_files) unless ruby_files.empty?
  17
  18   system("git", "stash", "pop", "--quiet") if need_stash
  19 else
  20   puts "Unmerged files. Resolve before committing."
  21   ok = false
  22 end
  23
  24 exit ok