commit_hook.rb

require 'rubygems'
require 'cgi'
require 'net/smtp'
require 'sha1'

require 'diff_to_html'
require 'emailer'
require 'git'

class CommitHook

  def self.run(rev1, rev2, ref_name)
    project_path = Dir.getwd
    recipient = Git.mailing_list_address
    prefix = Git.repo_name
    branch_name = (ref_name =~ /master$/i) ? "" : "/#{ref_name.split("/").last}"

    diff2html = DiffToHtml.new
    diff2html.diff_between_revisions rev1, rev2, prefix, ref_name
    diff2html.result.reverse.each_with_index do |result, i|
      nr = number(diff2html.result.size, i)
      emailer = Emailer.new project_path, recipient, result[:commit_info][:email], result[:commit_info][:author],
                     "[#{prefix}#{branch_name}]#{nr} #{result[:commit_info][:message]}", result[:text_content], result[:html_content], rev1, rev2, ref_name
      emailer.send
    end
  end

  def self.number(total_entries, i)
    return '' if total_entries <= 1
    digits = total_entries < 10 ? 1 : 3
    '[' + sprintf("%0#{digits}d", i) + ']'
  end

end