Quick, hack-y script to add lolcommits hooks to all repos in a dir.

lolcommitify.rb

#!/usr/bin/env ruby
#
# lolcommitify.rb - adds the post-commit hook of https://github.com/mroth/lolcommits
#                   to every single git repository on a directory, recursively
#
# Copyright 2013 Chester (cd@pobox.com), BSD-style copyright and disclaimer apply
# (http://opensource.org/licenses/bsd-license.php)

require 'fileutils'

abort "Usage: #{__FILE__} dirname" if ARGV.count != 1

HASHBANG = "#!/bin/sh\n"
LOL_HOOK = "lolcommits -c\n"

Dir.chdir ARGV[0]
puts "Scanning directories under #{Dir.pwd}..."
Dir.glob('**/\.git').each do |gitdir|
  next unless Dir.exists? gitdir
  name = "#{gitdir}/hooks/post-commit"
  print "Checking #{ARGV[0]}/#{name}... "
  contents = File.exists?(name) ? File.readlines(name) : []
  before = contents.clone
  contents.unshift HASHBANG unless contents.any? && contents[0].start_with?('#!')
  contents << LOL_HOOK unless contents.grep(/lolcommits/).any?
  new_lines = contents - before
  if new_lines.any?
    puts "Adding lines:\n #{new_lines.join ' '}"
    FileUtils.makedirs File.dirname(name), :noop => true
    File.open(name, 'w') { |f| f.puts contents }
  else
    puts "no action needed."
  end
end