Puller: it updates repository on the server after push to GitHub. Useful for example for CI via CIJoe. Just add your_server/puller to Post Receive URLS (in GH administration for the repo).

.gitignore

.rvmrc
.bundle
Gemfile.lock
*.log

README.textile

About

Puller is a simple hook which fetch changes from the GitHub repository after the repository was updated.

Setup

1. Simply start the app on your server.
2. And add you server URL to the Post-Receive URLs on GitHub in administration of the project you wish to mirror on your server.
3. There’s no step 3!

Links

• GitHub Post Receive Hooks

config.ru

#!/usr/bin/env rackup
# encoding: utf-8

# TODO: the logger doesn't work!

require "json"

class Puller
  def initialize
    @log = File.open(File.expand_path("../puller.log", __FILE__), "a")
    #@log = STDERR
    info("Puller initialised.")
    at_exit { @log.close }
  end

  def call(env)
    request = Rack::Request.new(env)
    if request.post?
      data = JSON.parse(request.params["payload"])
      if File.directory?("/repos/#{data["repository"]["name"]}")
        info("Updating #{data["repository"]} ... ")
        Dir.chdir("/repos/#{data["repository"]["name"]}") do
          sh "git fetch && git reset origin/master --hard"
        end
      else
        info("Cloning #{data["repository"]} ... ")
        Dir.chdir("/repos") do
          #sh "git clone #{data["repository"]["url"]}.git --recursive" # this needs newer Git than I have in my Debian
          sh "git clone #{data["repository"]["url"]}.git"
          Dir.chdir(data["repository"]["name"]) do
            sh "git submodule update --init; true"
          end
        end
      end
      return [204, Hash.new, Array.new]
    elsif request.get?
      body = <<-EOF
        This is <a href="https://gist.github.com/825958">Puller</a>.
      EOF
      return [200, {"Content-Length" => body.bytesize.to_s, "Content-Type" => "text/html"}, [body]]
    end
  rescue Exception => exception
    error("#{exception.class}: #{exception.message}\n-  #{exception.backtrace.join("\n-  ")}")
  end

  private
  def info(message)
    @log.puts("[INFO] #{message}")
  end

  def error(message)
    @log.puts("[ERROR] #{message}")
  end

  def sh(command)
    @log.puts(command)
    @log.puts(%x(#{command}))
    @log.puts("Exit status: #$?")
  end
end

map "/puller" do
  run Puller.new
end

Gemfile

# encoding: utf-8

source "http://gemcutter.org"

gem "rack"

puller

#!/bin/sh

ROOT=/webs/services/puller
PIDFILE=/var/run/puller.pid

start () {
  $ROOT/config.ru --port=1000 --env=production --daemonize --pid $PIDFILE
}

stop () {
  kill -9 $(cat $PIDFILE)
}

case "$1" in
  start|"")
    start ;;

  restart)
    stop && start ;;

  stop)
    stop ;;

  *)
    echo "Usage: $0 [start|restart|stop]" >&2
    exit 1
    ;;
esac