#!/usr/bin/python

import urllib2

import sgmllib

import string

import pickle

import os

class MyParser(sgmllib.SGMLParser):

  "A simple parser class."

  def parse(self, s):

    "Parse the given string 's'."

    self.feed(s)

    self.close()

  def __init__(self, verbose=0):

    "Initialise an object, passing 'verbose' to the superclass."

    sgmllib.SGMLParser.__init__(self, verbose)

    self.packages = {}

  def start_a(self, attributes):

    "Process a hyperlink and its 'attributes' and only add buildsymbols rpms to the list."

    for name, value in attributes:

      if name == "href":

	fn = value.rsplit('.', 1)

	if len(fn) > 1:

          if fn[1] == "rpm":

	    if fn[0].find("buildsymbols") != -1:

	      tmpstr = fn[0].rsplit(".", 1)[0]

	      tmpstr = tmpstr.rsplit("-", 2)

	      name = tmpstr[0].rsplit("-", 1)[0]

	      version = tmpstr[1] + "-" + tmpstr[2]

              if version.find("_") == -1:

	        self.packages[name] = version

  def get_buildsymbols(self):

    "Return the list of packages."

    return self.packages

def submit_package(baseuri, filename):

  uri = baseuri + filename

  # download

  print "fetching " + uri

  try:

    f = urllib2.urlopen(uri)

    lf = open(filename, "wb")

    lf.write(f.read())

    lf.close()

    print "HTTP Error:",e.code , uri

    print "URL Error:",e.reason , uri

  # extract

  command = "rpm2cpio " + filename + " | cpio -idm --quiet"

  print "extracting symbols from package"

  os.system(command)

  # save filename we just extracted (assume there is only one file)

  for root, dirs, files in os.walk("usr"):

    for file in files:

      zipfile = file

  # - upload to symbolstore

  print "uploading " + zipfile + " to mozilla"

  command = "scp ./usr/share/mozilla/" + zipfile + " " + SSHCONF + ":"

  os.system(command)

  # - unzip data on symbolstore

  print "unzipping " + zipfile + " on symbolstore"

  command = "ssh mozsymbols 'cd symbols; unzip -o /home/wr/" + zipfile + "'"

  os.system(command)

  # post-upload command

  print "executing post-upload command on server"

  command = "ssh mozsymbols '/usr/local/bin/post-symbol-upload.py'"

  # clean up working directory

  command = "rm -rf usr *.rpm"

  os.system(command)

def find_packages(repo, arch):

  updates = []

  s = f.read()

  parser = MyParser()

  parser.parse(s)

  datanew = parser.get_buildsymbols()

  fn = repo + ".pkl"

  fn = fn.replace("/", "_")

  dataold = None

  if os.path.isfile(fn):

    datafile = open(fn, 'rb')

    dataold = pickle.load(datafile)

    datafile.close()

  for k, v in datanew.iteritems():

    if dataold is not None:

      if dataold.has_key(k) and dataold[k] == v:

        continue

    # different version, save in updates list

    updates.append(k)

  # save new dataset for future use (only if anything changed at all)

  if len(updates) > 0:

    print "updating " + fn

    datafile = open(fn, 'wb')

    pickle.dump(datanew, datafile)

    datafile.close()

  else:

    print "nothing to do for " + repo

  for package in updates:

    baseuri = repo + "/"

    filename =  package + "-buildsymbols-" + datanew[package] + "." + arch + ".rpm"

    submit_package(baseuri, filename)

# MAIN

baseurl = "http://download.opensuse.org/"

archs = [ "i586", "x86_64"]

SSHCONF = "mozsymbols"

# product repos

for repo in repos:

  for arch in archs:

    uri = baseurl + repo + arch

    find_packages(uri, arch)

# OBS repos

for repo in bsrepos:

  for dist in bsdists:

    for arch in archs:

      uri = baseurl + repo + dist + "/" + arch

      find_packages(uri, arch)