git-update.rb

#!/usr/bin/env ruby
require 'pathname'
require 'logger'
require 'thread'
require 'open3'

class App
    def initialize args
        @logger = args[:logger] or raise "no logger"
        @is_check_push = args[:is_check_push]
        @ignore = args[:ignore] || []
    end

    def run base
        targets = Pathname.glob("#{base}/**/.git").sort
        threads = []
        targets.each do |dir|
            next if @ignore.any? {|i| i =~ dir.to_s }

            threads << Thread.new do |t|
                @logger.debug("start update #{dir}")
                git_update dir.parent.realpath
                @logger.debug("end update #{dir}")
            end

            sleep 1 # stop too many access to github.

            # for avoiding fork bomb
            if threads.length >= 10
                while th = threads.pop
                    th.join
                end
            end
        end

        threads.each {|th| th.join }
    end

    private

    def git_update dir
      git_cmd = "git --git-dir=#{dir}/.git"
      Open3.popen3 "#{git_cmd} remote update && #{git_cmd} config --get-regexp svn-remote > /dev/null && #{git_cmd} svn fetch" do |stdin, stdout, stderr|
        stdout.each_line do |line|
            if line =~ /^Updating / # 必ず出るので特別扱い。
                @logger.debug("update: #{dir}: #{line}")
            else
                @logger.info("update: #{dir}: #{line}")
            end
        end
        stderr.each_line do |line|
            @logger.error("update: #{dir}: #{line}")
        end
      end

      if @is_check_push
        pushable_remotes = `#{git_cmd} remote -v | grep @ | cut -f 1`.split(/\n/)
        pushable_remotes.each do |remote|
          # master固定なのに注意
          # TODO: git-svnでもチェックしたい
          check_cmd = "#{git_cmd} log --name-status --pretty=oneline --abbrev-commit #{remote}/master..HEAD"
          Open3.popen3 (check_cmd) do |stdin,stdout,stderr|
            counter = 0
            stdout.each_line do |line|
              counter += 1
              # 必要以上の情報が出てるので詳しく知りたかったらユーザーが実行する方がよさそう
              # @logger.info("push_check: #{dir}: #{line}")
            end
            if counter > 0
              @logger.info("push_check: #{dir}'s #{remote} is need to push!!! do \"#{check_cmd}\"")
            end
            stderr.each_line do |line|
              # ignore error
            end
          end
        end
      end
    end
end

def main
    logger = Logger.new($stderr)
    logger.level = Logger::INFO
    app = App.new(
        :logger => logger, 
        :is_check_push => true,
        :ignore => [ %r{ruby/(pathobserver|rubycocoa)} ]
    )
    app.run Pathname(__FILE__).parent.realpath
end

main()