03f3db02c1
BUG=skia:2618 R=borenet@google.com, cmp@chromium.org Author: epoger@google.com Review URL: https://codereview.chromium.org/392353003
155 lines
5.9 KiB
Python
Executable File
155 lines
5.9 KiB
Python
Executable File
#!/usr/bin/python
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"""
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Copyright 2014 Google Inc.
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Use of this source code is governed by a BSD-style license that can be
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found in the LICENSE file.
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Download actual GM results for a particular builder.
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"""
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# System-level imports
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import optparse
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import os
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import posixpath
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import re
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import urllib2
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# Must fix up PYTHONPATH before importing from within Skia
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import fix_pythonpath # pylint: disable=W0611
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# Imports from within Skia
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from py.utils import gs_utils
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from py.utils import url_utils
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import buildbot_globals
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import gm_json
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GM_SUMMARIES_BUCKET = buildbot_globals.Get('gm_summaries_bucket')
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DEFAULT_ACTUALS_BASE_URL = (
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'http://storage.googleapis.com/%s' % GM_SUMMARIES_BUCKET)
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DEFAULT_JSON_FILENAME = 'actual-results.json'
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class Download(object):
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def __init__(self, actuals_base_url=DEFAULT_ACTUALS_BASE_URL,
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json_filename=DEFAULT_JSON_FILENAME,
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gm_actuals_root_url=gm_json.GM_ACTUALS_ROOT_HTTP_URL):
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"""
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Args:
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actuals_base_url: URL pointing at the root directory
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containing all actual-results.json files, e.g.,
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http://domain.name/path/to/dir OR
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file:///absolute/path/to/localdir
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json_filename: The JSON filename to read from within each directory.
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gm_actuals_root_url: Base URL under which the actually-generated-by-bots
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GM images are stored.
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"""
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self._actuals_base_url = actuals_base_url
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self._json_filename = json_filename
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self._gm_actuals_root_url = gm_actuals_root_url
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self._image_filename_re = re.compile(gm_json.IMAGE_FILENAME_PATTERN)
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def fetch(self, builder_name, dest_dir):
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""" Downloads actual GM results for a particular builder.
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Args:
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builder_name: which builder to download results of
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dest_dir: path to directory where the image files will be written;
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if the directory does not exist yet, it will be created
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TODO(epoger): Display progress info. Right now, it can take a long time
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to download all of the results, and there is no indication of progress.
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TODO(epoger): Download multiple images in parallel to speed things up.
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"""
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json_url = posixpath.join(self._actuals_base_url, builder_name,
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self._json_filename)
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json_contents = urllib2.urlopen(json_url).read()
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results_dict = gm_json.LoadFromString(json_contents)
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actual_results_dict = results_dict[gm_json.JSONKEY_ACTUALRESULTS]
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for result_type in sorted(actual_results_dict.keys()):
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results_of_this_type = actual_results_dict[result_type]
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if not results_of_this_type:
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continue
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for image_name in sorted(results_of_this_type.keys()):
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(test, config) = self._image_filename_re.match(image_name).groups()
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(hash_type, hash_digest) = results_of_this_type[image_name]
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source_url = gm_json.CreateGmActualUrl(
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test_name=test, hash_type=hash_type, hash_digest=hash_digest,
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gm_actuals_root_url=self._gm_actuals_root_url)
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dest_path = os.path.join(dest_dir, config, test + '.png')
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url_utils.copy_contents(source_url=source_url, dest_path=dest_path,
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create_subdirs_if_needed=True)
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def get_builders_list(summaries_bucket=GM_SUMMARIES_BUCKET):
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""" Returns the list of builders we have actual results for.
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Args:
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summaries_bucket: Google Cloud Storage bucket containing the summary
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JSON files
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"""
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dirs, _ = gs_utils.GSUtils().list_bucket_contents(bucket=GM_SUMMARIES_BUCKET)
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return dirs
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def main():
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parser = optparse.OptionParser()
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required_params = []
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parser.add_option('--actuals-base-url',
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action='store', type='string',
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default=DEFAULT_ACTUALS_BASE_URL,
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help=('Base URL from which to read files containing JSON '
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'summaries of actual GM results; defaults to '
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'"%default".'))
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required_params.append('builder')
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# TODO(epoger): Before https://codereview.chromium.org/309653005 , when this
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# tool downloaded the JSON summaries from skia-autogen, it had the ability
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# to get results as of a specific revision number. We should add similar
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# functionality when retrieving the summaries from Google Storage.
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parser.add_option('--builder',
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action='store', type='string',
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help=('REQUIRED: Which builder to download results for. '
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'To see a list of builders, run with the '
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'--list-builders option set.'))
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required_params.append('dest_dir')
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parser.add_option('--dest-dir',
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action='store', type='string',
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help=('REQUIRED: Directory where all images should be '
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'written. If this directory does not exist yet, it '
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'will be created.'))
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parser.add_option('--json-filename',
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action='store', type='string',
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default=DEFAULT_JSON_FILENAME,
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help=('JSON summary filename to read for each builder; '
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'defaults to "%default".'))
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parser.add_option('--list-builders', action='store_true',
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help=('List all available builders.'))
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(params, remaining_args) = parser.parse_args()
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if params.list_builders:
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print '\n'.join(get_builders_list())
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return
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# Make sure all required options were set,
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# and that there were no items left over in the command line.
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for required_param in required_params:
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if not getattr(params, required_param):
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raise Exception('required option \'%s\' was not set' % required_param)
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if len(remaining_args) is not 0:
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raise Exception('extra items specified in the command line: %s' %
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remaining_args)
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downloader = Download(actuals_base_url=params.actuals_base_url)
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downloader.fetch(builder_name=params.builder,
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dest_dir=params.dest_dir)
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if __name__ == '__main__':
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main()
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