Remove Skia's forked buildbot code

slave/skia_slave_scripts/utils/sync_bucket_subdir.py

-#!/usr/bin/env python
-# Copyright (c) 2012 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.
-
-"""Synchronize multiple files with a Google Storage Bucket and subdir.
-For a lack of a better word 'synchronization' was used, warnings:
-1) Downloads files that are not found locally
-2) Uploads files that are not found in the bucket
-3) Does NOT check version, date or content of the file. If the file is reported
-   to be present both locally and in the bucket, no upload nor download is
-   performed.
-4) If we find filenames that do not match our expectations, an exception
-   will be raised
-"""
-
-from slave import slave_utils
-from utils import download_from_bucket
-from utils import upload_to_bucket
-
-import os
-import posixpath
-import re
-
-
-DEFAULT_PERFDATA_GS_BASE = 'gs://chromium-skia-gm'
-KNOWN_FILENAMES = r'^bench_([0-9a-fr]*)_data.*'
-IGNORE_UPLOAD_FILENAMES = ('.DS_Store')
-
-
-def SyncBucketSubdir(directory, dest_gsbase=DEFAULT_PERFDATA_GS_BASE, subdir='',
-    do_upload=True, do_download=True, filenames_filter=KNOWN_FILENAMES,
-    exclude_json=False,
-    min_download_revision=0):
-  """ synchronizes a local directory with a cloud one
-
-  dir: directory to synchronize
-  dest_gsbase: gs:// bucket to synchronize
-  subdir: optional subdirectory within the bucket, multiple directory levels
-          are supported, using Unix relative path syntax ("outer/innner")
-  do_upload: True to perform upload, False otherwise
-  do_download: True to perform download, False otherwise
-  filenames_filter: is a regular expression used to match known file names,
-                    and re.search(filenames_filter, file_name).group(1)
-                    must return revision number.
-  min_download_revision: don't transfer files whose revision number
-                         (based on filenames_filter) is lower than this
-  """
-
-  local_files = set(os.listdir(directory))
-
-  status, output_gsutil_ls = slave_utils.GSUtilListBucket(
-      posixpath.join(dest_gsbase, subdir), [])
-
-  # If there is not at least one file in that subdir, gsutil reports error.
-  # Writing something like GsUtilExistsSubdir is a lot of pain.
-  # We assume that the subdir does not exists, and if there is a real
-  # issue, it will surface later.
-  if status != 0:
-    print 'ls failed'
-    output_gsutil_ls = ''
-
-  output_gsutil_ls = set(output_gsutil_ls.splitlines())
-  gsbase_subdir = posixpath.join(dest_gsbase, subdir, '')
-
-  cloud_files = set()
-  for line in output_gsutil_ls:
-    # Ignore lines with warnings and status messages.
-    if line.startswith(gsbase_subdir) and line != gsbase_subdir:
-      cloud_files.add(line.replace(gsbase_subdir, ''))
-
-  # Download only files not present on the local dir
-  if do_download:
-    to_download = cloud_files.difference(local_files)
-    for file_name in to_download:
-      match = re.search(filenames_filter, file_name)
-      if not match:
-        continue
-
-  # Uploads only files not present on the cloud storage
-  if do_upload:
-    to_upload = local_files.difference(cloud_files)
-    for file_name in to_upload:
-      if file_name not in IGNORE_UPLOAD_FILENAMES:
-        match = re.search(filenames_filter, file_name)
-        if not match or (exclude_json and file_name.endswith('.json')):
-          # Ignore other files, rather than raising an exception
-          continue
-       # Ignore force builds without a revision number.
-        if match.group(1) != '':
-          upload_to_bucket.upload_to_bucket(os.path.join(directory, file_name),
-                                            dest_gsbase,
-                                            subdir)
-  return 0