get a list of bzr branches from launchpad, then create an event.xml for ripary

build-event-xml.rb

#!/usr/bin/env ruby

require 'date'
require 'time'

$all_events = {}

class Event
  attr_reader :date, :branch, :filename

  def initialize(date, branch, filename)
    @date = date
    @branch = branch
    @filename = filename
  end

  def <=>(b)
    return @date <=> b.date
  end
  
  def to_s
    "#{@date}:#{@filename}"
  end

end

class Events < Hash

  def add(e)
    if self[e.to_s].nil?
      self[e.to_s] = e
    end
  end

  def to_a
    self.values
  end
  
end

def load_events(branch, path)
  input = IO.popen("bzr log --long -v #{path}")

  begin
    while true
      while true
        line = input.readline("\n")
      #  puts line
        # match = line.match("author: ([^ ]+).*") # author: Cerberus <matt.dietz@rackspace.com>, mdietz <mdietz@openstack>
        #author = match[1] if match
        match = line.match("timestamp: (.*)") # timestamp: Thu 2010-12-23 19:07:10 +0000
        date = ((DateTime.parse(match[1]) - DateTime.civil(1970))*86400) if match
        match = line.match("(added|modified|removed|renamed):.*")
        break if match
        #date = match[2]
      end
      while true
        break if line == "------------------------------------------------------------\n"
        if line.match("  .*")
          $events.add Event.new(date.to_i * 1000, branch, line.strip)
        end
        line = input.readline("\n")
      end
    end
  rescue EOFError
  end
end

$events = Events.new

load_events('trunk', 'trunk')
Dir['*'].each do |branch| 
  load_events(branch, branch) if File.directory? branch
end

@events = $events.to_a.sort!

puts "<?xml version=\"1.0\"?>"
puts "<file_events>"
@events.each do |e|
  puts "<event date=\"#{e.date}\" author=\"#{e.branch}\" filename=\"/#{e.filename}\"/>"
end
puts "</file_events>"

launchpad-bzr-branches.rb

require 'open-uri'

def url(repo, offset)
  "https://code.launchpad.net/#{repo}/+branches?field.lifecycle=ALL&field.lifecycle-empty-marker=1&field.sort_by=newest+first&field.sort_by-empty-marker=1&start=#{offset}"
end


def branches(repo)
  offset = 0
  results = []
  loop do
    puts "# grabbing offset #{offset}"
    html = open(url(repo,offset)).read
    new_branches = html.scan(/href="\/(~[^\/]+\/#{repo}\/[^\/]+)"/).flatten
    break if new_branches.empty?
    results += new_branches
    offset += 100
  end
  return results
end

def folder(repo, name)
  name.gsub("~", '').gsub("/#{repo}/", '_')
end

def init(repo)
  puts "mkdir #{repo}"
  puts "cd #{repo}"
  puts "bzr init-repo ."
  puts "bzr branch lp:#{repo} trunk"

  branches(repo).each do |name|
    puts "bzr branch lp:#{name} #{folder(repo, name)}"
  end
end