Destroy svn_utils.py.

svn_utils.py

-# Copyright (c) 2010 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-"""Utility functions to call subversion, apply and revert patches."""
-
-import logging
-import os
-
-import gclient_utils
-import scm
-import subprocess2
-
-
-def svn(args, **kwargs):
-  """Runs svn and throws an exception if the command failed."""
-  return subprocess2.check_call(
-      ['svn'] + args + ['--no-auth-cache', '--non-interactive'], **kwargs)
-
-
-def capture_svn(args, **kwargs):
-  """Runs svn and throws an exception if the command failed. Returns the output.
-  """
-  cmd = ['svn'] + args + ['--no-auth-cache', '--non-interactive']
-  return subprocess2.check_capture(cmd, **kwargs)
-
-
-def parse_svn_info(output, key):
-  """Returns value for key from svn info output.
-
-  Case insensitive.
-  """
-  values = {}
-  for line in output.splitlines(False):
-    if not line:
-      continue
-    k, v = line.split(':', 1)
-    k = k.strip().lower()
-    v = v.strip()
-    assert not k in values
-    values[k] = v
-  return values.get(key, None)
-
-
-def revert(url, directory, user, pwd):
-  """Reverts local modifications or checks out if the directory is not present.
-  """
-  assert url
-  assert bool(user) == bool(pwd)
-  flags = ['--ignore-externals']
-  if user:
-    flags.extend(['--username', user, '--password', pwd])
-
-  if not os.path.isdir(directory):
-    logging.info('Directory %s is not present, checking it out.' % directory)
-    svn(['checkout', url, directory] + flags)
-  else:
-    for file_status in scm.SVN.CaptureStatus(directory):
-      file_path = os.path.join(directory, file_status[1])
-      if file_status[0][0] == 'X':
-        # Ignore externals.
-        logging.info('Ignoring external %s' % file_path)
-        continue
-
-      logging.info('%s%s' % (file_status[0], file_status[1]))
-
-      if file_status[0].isspace():
-        raise EnvironmentError(
-            'No idea what is the status of %s.\n'
-            'You just found a bug in gclient, please ping '
-            'maruel@chromium.org ASAP!' % file_path)
-
-      # svn revert is really stupid. It fails on inconsistent line-endings,
-      # on switched directories, etc. So take no chance and delete everything!
-      try:
-        if not os.path.exists(file_path):
-          pass
-        elif os.path.isfile(file_path) or os.path.islink(file_path):
-          logging.info('os.remove(%s)' % file_path)
-          os.remove(file_path)
-        elif os.path.isdir(file_path):
-          logging.info('gclient_utils.RemoveDirectory(%s)' % file_path)
-          gclient_utils.RemoveDirectory(file_path)
-        else:
-          logging.error('no idea what is %s.\nYou just found a bug in gclient'
-                        ', please ping maruel@chromium.org ASAP!' % file_path)
-      except EnvironmentError:
-        logging.error('Failed to remove %s.' % file_path)
-
-    # Revive files that were deleted above.
-    svn(['update', '--force'] + flags, cwd=directory)
-
-  out = subprocess2.check_capture(['svn', 'info', '.'], cwd=directory)
-  return int(parse_svn_info(out, 'revision'))
-
-
-def update_committer(url, revision, committer, password, new_author, cwd):
-  """Changes the author of a commit a posteriori.
-
-  This is necessary since the actual commit is done with a "commit-bot"
-  credential but the original patch author needs to be assigned authorship
-  of the revision.
-  """
-  svn(['propset', '--revprop', 'svn:author',
-       '-r', revision,
-       new_author,
-       '--username', committer,
-       '--password', password,
-       url],
-      cwd=cwd)