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#!/usr/bin/python2
#
# Copyright 2013 Google Inc. All Rights Reserved.
"""Script to find list of common images (first beta releases) in Chromeos.
Display information about stable ChromeOS/Chrome versions to be used
by the team developers. The purpose is to increase team productivity
by using stable (known and tested) ChromeOS/Chrome versions instead of
using randomly selected versions. Currently we define as a "stable"
version the first Beta release in a particular release cycle.
"""
from __future__ import print_function
__author__ = 'llozano@google.com (Luis Lozano)'
import argparse
import pickle
import re
import sys
import urllib
VERSIONS_HISTORY_URL = 'http://cros-omahaproxy.appspot.com/history'
def DisplayBetas(betas):
print('List of betas from %s' % VERSIONS_HISTORY_URL)
for beta in betas:
print(' Release', beta['chrome_major_version'], beta)
return
def FindAllBetas(all_versions):
"""Get ChromeOS first betas from History URL."""
all_betas = []
prev_beta = {}
for line in all_versions:
match_obj = re.match(
r'(?P<date>.*),(?P<chromeos_version>.*),'
r'(?P<chrome_major_version>\d*).(?P<chrome_minor_version>.*),'
r'(?P<chrome_appid>.*),beta-channel,,Samsung Chromebook Series 5 550',
line)
if match_obj:
if prev_beta:
if (prev_beta['chrome_major_version'] !=
match_obj.group('chrome_major_version')):
all_betas.append(prev_beta)
prev_beta = match_obj.groupdict()
if prev_beta:
all_betas.append(prev_beta)
return all_betas
def SerializeBetas(all_betas, serialize_file):
with open(serialize_file, 'wb') as f:
pickle.dump(all_betas, f)
print('Serialized list of betas into', serialize_file)
return
def Main(argv):
"""Get ChromeOS first betas list from history URL."""
parser = argparse.ArgumentParser()
parser.add_argument('--serialize',
dest='serialize',
default=None,
help='Save list of common images into the specified '
'file.')
options = parser.parse_args(argv)
try:
opener = urllib.URLopener()
all_versions = opener.open(VERSIONS_HISTORY_URL)
except IOError as ioe:
print('Cannot open', VERSIONS_HISTORY_URL)
print(ioe)
return 1
all_betas = FindAllBetas(all_versions)
DisplayBetas(all_betas)
if options.serialize:
SerializeBetas(all_betas, options.serialize)
all_versions.close()
return 0
if __name__ == '__main__':
retval = Main(sys.argv[1:])
sys.exit(retval)
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