commit_hook.rb

require 'rubygems'
require 'cgi'
require 'net/smtp'
require 'sha1'
require File.dirname(__FILE__) + '/diff_to_html'
require File.dirname(__FILE__) + '/emailer'
require File.dirname(__FILE__) + '/git'

class CommitHook

  def self.run(rev1, rev2, ref_name, config_file = nil)

    config = YAML.load_file(config_file || '/usr/local/share/git_commit_notifier/config/config.yml')
    project_path = Dir.getwd

    project_config = config['projects'] && config['projects'][project_path] ? config['projects'][project_path] : nil

    recipient = project_config ? project_config['recipient_address'] : ''
    recipient = Git.mailing_list_address if recipient.empty?

    repo = project_config ? project_config['application_name'] : ''
    repo = Git.prefix if repo.empty?
    repo = 'scm' if repo.empty?
    prefix = "[#{repo}][#{short_ref_name(ref_name)}]"

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

  def self.short_ref_name(ref_name)
    ref_name.strip.split('/').last
  end

end