Trac Subversion Repository Scraper

Ruby script to pull code from a Trac repo browser.  Useful if you are behind a firewall/proxy and the server has no http access to the subversion repo. (I'm sure its not the prettiest/best/rubiest way to do it, but it worked for me)


#!/usr/bin/env ruby

require 'rubygems'
require 'hpricot'
require 'open-uri'


#a Trac repo scraper. pass the url to scrape (the root of a repo)
#  and optionally the local path to write to.  defaults to .

class TracRepoScraper

  def initialize(trac_url, local_path='.')
    @trac_url = trac_url

    trac_url =~ /(http:\/\/.*?)\//
    @trac_server = $1
    @local_path =  local_path
  end

  def getallfiles(url,cur_localpath)
    if cur_localpath != '.'
      Dir.mkdir(cur_localpath)
    end
    doc = Hpricot(open(url).read)
    doc.search("//tbody//tr//td//a[@class='file']").each do |file_anchor|
      #get the file as curpath+/file_name

      #following gives us absolute path (excluding domain)
      actual_file_url = @trac_server + file_anchor['href']+'?format=raw'
      #temp
      puts "Saving #{actual_file_url} to #{cur_localpath}/#{file_anchor.inner_html}"
      #read the file and write to a file in the correct directory
      File.open(cur_localpath+"/"+file_anchor.inner_html, 'w') do |f|
        remote_file = open(actual_file_url)
        remote_file.each { |line|
          f.puts(line)
        }
      end
    end

    doc.search("//tbody//tr//td//a[@class='dir']").each do |dir_anchor|
      #go into the directory
      dir_url = @trac_server + dir_anchor['href']
      puts "*** stepping into #{dir_url}"
      #dir_anchor.inner_html is the name of the subdirectory (relative)
      getallfiles(dir_url, cur_localpath+"/"+dir_anchor.inner_html)
    end
  end

  def start
    getallfiles(@trac_url, @local_path)
  end
end


#### main

trac_url = ARGV[0]
localpath = '.'
if ARGV[1]
  if !ARGV[1].strip.empty?
    localpath = ARGV[1].strip
  end
end

TracRepoScraper.new(trac_url, localpath).start