Create 2062 release branch for CEF3.

git-svn-id: https://chromiumembedded.googlecode.com/svn/branches/2062@1783 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

tools/svn_util.py

@@ -0,0 +1,60 @@
+# 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