cef/tools/svn_util.py

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# Copyright (c) 2014 The Chromium Embedded Framework Authors. All rights
# reserved. Use of this source code is governed by a BSD-style license that
# can be found in the LICENSE file
from exec_util import exec_cmd
import os
import urllib
import xml.etree.ElementTree as ET
def is_checkout(path):
""" Returns true if the path represents an svn checkout. """
return os.path.exists(os.path.join(path, '.svn'))
def check_url(url):
""" Check the URL and raise an exception if invalid. """
if ':' in url[:7]:
parts = url.split(':', 1)
if (parts[0] == 'http' or parts[0] == 'https' or parts[0] == 'svn') and \
parts[1] == urllib.quote(parts[1]):
return url
raise Exception('Invalid URL: %s' % (url))
def get_svn_info(path = '.'):
""" Retrieves the URL and revision from svn info. """
url = 'None'
rev = 'None'
cmd = "svn info --xml %s" % (path)
is_http = path[0:4] == 'http'
if is_http or os.path.exists(path):
result = exec_cmd(cmd, path if not is_http else '.')
if result['err'] == '':
tree = ET.ElementTree(ET.fromstring(result['out']))
entry = tree.getroot().find('entry')
url = entry.find('url').text
rev = entry.attrib['revision']
else:
raise Exception("Failed to execute svn info: %s" % (result['err']))
return {'url': url, 'revision': rev}
def get_revision(path = '.'):
""" Retrieves the revision from svn info. """
info = get_svn_info(path)
if info['revision'] == 'None':
raise Exception('Unable to retrieve SVN revision for %s' % (path))
return info['revision']
def get_changed_files(path = '.'):
""" Retrieves the list of changed files from svn status. """
files = []
if os.path.exists(path):
try:
stream = os.popen('svn status '+path)
for line in stream:
status = line[0]
# Return paths with add, modify and switch status.
if status == 'A' or status == 'M' or status == 'S':
files.append(line[8:].strip())
except IOError, (errno, strerror):
raise
return files