pre-commit-hook.rb

#!/usr/bin/env ruby
require 'yaml'

common_git_paths = "which git"
git_path = `#{common_git_paths}`.chomp
filename = File.join(File.dirname(File.expand_path(__FILE__)), '../app/config/parameters.yml')

abort('File not found') unless File.exists?(filename)
abort('Path not found') if (git_path.empty?)

command_line = git_path + " rev-parse --short HEAD"
sha = 'rev. ' + `#{command_line}`.chomp + " " + DateTime.now.strftime('%d/%m/%Y %H:%M:%S')

params = YAML::load_file(filename)
params['parameters']['version'] = sha


File.open(filename, 'w') {|f| f.puts params.to_yaml }