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#!/usr/bin/python
#
# 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.
"""
__author__ = "llozano@google.com (Luis Lozano)"
import optparse
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", 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 = optparse.OptionParser()
parser.add_option("--serialize", dest="serialize", default=None,
help="Save list of common images into the specified file.")
options = parser.parse_args(argv)[0]
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)
sys.exit(retval)
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