gistfile1.rb

#!/usr/bin/ruby

# update_version.rb
#
# Created by Piet Jaspers on 23/07/10.
# Copyright 2010 10to1. All rights reserved.


require "rubygems"
require "Plist"

# Change this to your git path
GIT_PATH = '/usr/local/bin/git'

plist_filename = "#{ENV['PROJECT_DIR']}/#{ENV['INFOPLIST_FILE']}"
pl = Plist::parse_xml(plist_filename)

def check_if_git_installed
  File.exists?(GIT_PATH)
end

if check_if_git_installed
  old_hash = pl["CFBundleVersion"].strip()
  git_hash = `#{GIT_PATH} rev-parse HEAD`.to_s[0..7].strip()

  if git_hash && git_hash != old_hash
    # Updating the long version number
    pl["CFBundleVersion"] = git_hash

    # If git-describe is available, use it to fill in the short
    # version number
    git_described_version = `#{GIT_PATH} describe`.gsub(/\n/,"")
    pl["CFBundleShortVersionString"] = git_described_version unless git_described_version.empty?

    # Some info for the Build Results window
    if git_described_version.empty?
      puts "Updating version: (long) #{pl["CFBundleVersion"]}"
    else
      puts "Updating version: (short) #{pl["CFBundleShortVersionString"]} (long) #{pl["CFBundleVersion"]}"
    end
    pl.save_plist(plist_filename)
  end
else
  puts "Git not found, skipping versioning."
end