gistfile1.rb

#!/usr/bin/env ruby

require 'rubygems'
require 'restclient'
require 'nokogiri'
require 'active_support/core_ext'
require 'uri/http'

def get!(url)
  RestClient::Request.execute(:method => :get, :url => url)
end

BASE_URL = 'http://builds.hq.northscale.net/latestbuilds/'

def url_from_path(path)
  path_url = URI.parse(path)
  return path unless path_url.host.nil?
  unless path_url.absolute?
    return BASE_URL + path
  end
  base = URI.parse(BASE_URL)
  URI::HTTP.build(:scheme => base.scheme,
                  :userinfo => base.userinfo,
                  :host => base.host,
                  :port => base.port,
                  :path => path).to_s
end

def fetch_manifest(build_nr)
  body = get!(BASE_URL)

  doc = Nokogiri::HTML(body)

  el = doc.css("a").find do |cel|
    href = cel.attributes['href']
    next unless href
    href = href.value
    href.include?(build_nr) &&
      href =~ /manifest.xml$/
  end

  url = url_from_path(el.attributes['href'].value)
  manifest_body = get!(url)

  elements = Nokogiri::XML(manifest_body).css("project")
  Hash[elements.map {|e| a = e.attributes; [a['name'].value, a['revision'].value]}]
end

rev1 = ARGV[0] || (raise "want rev1 and rev2")
rev2 = ARGV[1] || (raise "want rev1 and rev2")

man1 = fetch_manifest(rev1)
man2 = fetch_manifest(rev2)

stuff = Dir['*']

different = {}

man2.each_key do |k|
  next unless stuff.include? k
  next unless man1.include? k
  m1r = man1[k]
  m2r = man2[k]
  next if m1r == m2r
  different[k] = (m1r..m2r)
end


different.to_a.sort.each do |(project, diff)|
  puts "project: #{project} https://github.com/couchbase/#{project}/compare/#{diff.first}...#{diff.last}"
  Dir.chdir(project) do
    lines = `git log --oneline #{diff.first}..#{diff.last}`.split("\n")
    lines.map! do |l|
      if l =~ /^([a-z0-9]+) /
        l + " https://github.com/couchbase/#{project}/commit/#{$1}"
      else
        l
      end
    end
    puts lines
  end
  puts
end