Delete git-auto-svn and its docs

git_auto_svn.py

-#!/usr/bin/env python
-# Copyright 2014 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.
-
-"""Performs all git-svn setup steps necessary for 'git svn dcommit' to work.
-
-Assumes that trunk of the svn remote maps to master of the git remote.
-
-Example:
-git clone https://chromium.googlesource.com/chromium/tools/depot_tools
-cd depot_tools
-git auto-svn
-"""
-
-import argparse
-import os
-import sys
-import urlparse
-
-import subprocess2
-
-from git_common import run as run_git
-from git_common import run_stream_with_retcode as run_git_stream_with_retcode
-from git_common import set_config, root, ROOT, current_branch
-from git_common import upstream as get_upstream
-from git_footers import get_footer_svn_id
-
-
-SVN_EXE = ROOT+'\\svn.bat' if sys.platform.startswith('win') else 'svn'
-
-
-def run_svn(*cmd, **kwargs):
-  """Runs an svn command.
-
-  Returns (stdout, stderr) as a pair of strings.
-
-  Raises subprocess2.CalledProcessError on nonzero return code.
-  """
-  kwargs.setdefault('stdin', subprocess2.PIPE)
-  kwargs.setdefault('stdout', subprocess2.PIPE)
-  kwargs.setdefault('stderr', subprocess2.PIPE)
-
-  cmd = (SVN_EXE,) + cmd
-  proc = subprocess2.Popen(cmd, **kwargs)
-  ret, err = proc.communicate()
-  retcode = proc.wait()
-  if retcode != 0:
-    raise subprocess2.CalledProcessError(retcode, cmd, os.getcwd(), ret, err)
-
-  return ret, err
-
-
-def main(argv):
-  # No command line flags. Just use the parser to prevent people from trying
-  # to pass flags that don't do anything, and to provide 'usage'.
-  parser = argparse.ArgumentParser(
-      description='Automatically set up git-svn for a repo mirrored from svn.')
-  parser.parse_args(argv)
-
-  upstreams = []
-  # Always configure the upstream trunk.
-  upstreams.append(root())
-  # Optionally configure whatever upstream branch might be currently checked
-  # out. This is needed for work on svn-based branches, otherwise git-svn gets
-  # very confused and tries to relate branch commits back to trunk, making a big
-  # mess of the codereview patches, and generating all kinds of spurious errors
-  # about the repo being in some sort of bad state.
-  curr_upstream = get_upstream(current_branch())
-  # There will be no upstream if the checkout is in detached HEAD.
-  if curr_upstream:
-    upstreams.append(curr_upstream)
-  for upstream in upstreams:
-    config_svn(upstream)
-  return 0
-
-
-def config_svn(upstream):
-  svn_id = get_footer_svn_id(upstream)
-  assert svn_id, 'No valid git-svn-id footer found on %s.' % upstream
-  print 'Found git-svn-id footer %s on %s' % (svn_id, upstream)
-
-  parsed_svn = urlparse.urlparse(svn_id)
-  path_components = parsed_svn.path.split('/')
-  svn_repo = None
-  svn_path = None
-  for i in xrange(len(path_components)):
-    try:
-      maybe_repo = '%s://%s%s' % (
-          parsed_svn.scheme, parsed_svn.netloc, '/'.join(path_components[:i+1]))
-      print 'Checking ', maybe_repo
-      run_svn('info', maybe_repo)
-      svn_repo = maybe_repo
-      svn_path = '/'.join(path_components[i+1:])
-      break
-    except subprocess2.CalledProcessError, e:
-      if 'E170001' in str(e):
-        print 'Authentication failed:'
-        print e
-        print ('Try running "svn ls %s" with the password'
-               ' from https://chromium-access.appspot.com' % maybe_repo)
-        print
-      continue
-  assert svn_repo is not None, 'Unable to find svn repo for %s' % svn_id
-  print 'Found upstream svn repo %s and path %s' % (svn_repo, svn_path)
-
-  run_git('config', '--local', '--replace-all', 'svn-remote.svn.url', svn_repo)
-  run_git('config', '--local', '--replace-all', 'svn-remote.svn.fetch',
-          '%s:refs/remotes/%s' % (svn_path, upstream),
-          'refs/remotes/%s$' % upstream)
-  print 'Configured metadata, running "git svn fetch". This may take some time.'
-  with run_git_stream_with_retcode('svn', 'fetch') as stdout:
-    for line in stdout.xreadlines():
-      print line.strip()
-
-
-if __name__ == '__main__':
-  try:
-    sys.exit(main(sys.argv[1:]))
-  except KeyboardInterrupt:
-    sys.stderr.write('interrupted\n')
-    sys.exit(1)