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.empty?
   7
   8   system("git", "stash", "save", "--keep-index", "--quiet") if need_stash
   9
  10   files = IO.popen(["git", "diff", "--staged", "--name-status"]).map do |line|
  11     Regexp.last_match(1) if line =~ /^[AM]\s+(.*)$/
  12   end.compact
  13
  14   ruby_files = files.select do |file|
  15     file =~ /\.rb$/ || (file !~ /\.erb$/ && `file --brief --mime-type #{file}` == "text/x-ruby\n")
  16   end
  17
  18   ok &&= system("bundle", "exec", "rubocop", *ruby_files) unless ruby_files.empty?
  19
  20   cookbooks = files.grep(%r{(cookbooks/[^/]+)/}) { Regexp.last_match(1) }.uniq
  21
  22   ok &&= system("bundle", "exec", "foodcritic", *cookbooks) unless cookbooks.empty?
  23
  24   system("git", "stash", "pop", "--quiet") if need_stash
  25 else
  26   puts "Unmerged files. Resolve before committing."
  27   ok = false
  28 end
  29
  30 exit ok