/hooks/prepare-commit-msg

 1#!/usr/bin/env ruby
 2#
 3# I use this to track performance regressions in my commit messages.  To
 4# use, copy or symlink into .git/hooks.
 5#
 6message = File.read(ARGV[0]).strip
 7require "benchmark"
 8File.open(ARGV[0], "w") do |file|
 9  ROOT = File.dirname(__FILE__) + "/../../"
10  system "cd #{ROOT} && make check"
11  status = $?.success? ? "passing" : "failing"
12  time = Benchmark.measure {
13    system "cd #{ROOT} && make bench && make bench && make bench"
14  }.real
15  file.printf "%s (%s) [%4f]", message, status, time
16end