58af0c895f
BUG=skia:1920 R=epoger@google.com Author: borenet@google.com Review URL: https://codereview.chromium.org/213833017 git-svn-id: http://skia.googlecode.com/svn/trunk@14015 2bbb7eff-a529-9590-31e7-b0007b416f81
118 lines
4.1 KiB
Python
Executable File
118 lines
4.1 KiB
Python
Executable File
#!/usr/bin/python
|
|
# Copyright (c) 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.
|
|
|
|
|
|
"""Find and display recent changes in the given GM.
|
|
|
|
Example usage:
|
|
|
|
$ python gm/show_gm_changes.py Test-Mac10.7-MacMini4.1-GeForce320M-x86-Debug \
|
|
shadertext_gpu --autogen-path .gm-actuals
|
|
|
|
Rev Hash
|
|
15990 10904734222736193002
|
|
10729 10752292282035416719
|
|
8504 2915063876615374518
|
|
71 7546128203733045901
|
|
"""
|
|
|
|
|
|
import argparse
|
|
import json
|
|
import os
|
|
import re
|
|
import subprocess
|
|
import sys
|
|
|
|
|
|
def _get_hash_and_last_change(gm_name, filepath):
|
|
"""Find the current hash for the given GM and the last-changed revision.
|
|
|
|
This function runs "svn blame", which is slow.
|
|
|
|
Args:
|
|
gm_name: string; name of the GM in question.
|
|
filepath: string; path to the actual-results.json file.
|
|
Returns:
|
|
tuple of the form (last_changed_rev, hash), where last_changed_rev is an
|
|
int and hash is a string, or (None, None) if the file does not exist, the
|
|
GM is not found in the file, or some other problem occurs.
|
|
"""
|
|
if not os.path.isfile(filepath):
|
|
# If the file doesn't exist, we may have synced to before it was created.
|
|
return (None, None)
|
|
output = subprocess.check_output(['svn', 'blame', '--force', filepath])
|
|
pattern = (r'^\s+\d+\s+.+\s+"%s.png" : {\s*\n\s+\d+\s+.+\s+"allowed-digests" '
|
|
': \[\s*\n\s+(\d+)\s+.+\s+\[ "bitmap-64bitMD5",\s+\n*(\d+)')
|
|
match = re.search(pattern % gm_name, output, re.MULTILINE)
|
|
if match:
|
|
try:
|
|
return (int(match.groups()[0]), match.groups()[1])
|
|
except Exception:
|
|
# If there are any problems with the above (incorrect number of matches,
|
|
# inability to parse an integer), just return None.
|
|
return (None, None)
|
|
return (None, None)
|
|
|
|
|
|
def find_changes(builder_name, gm_name, autogen_path):
|
|
"""Find and return recent changes in the given GM.
|
|
|
|
This function runs "svn blame" and "svn update" numerous times and is
|
|
therefore very slow.
|
|
|
|
Args:
|
|
builder_name: string; name of the builder.
|
|
gm_name: string; name of the GM.
|
|
autogen_path: string; path to skia-autogen checkout.
|
|
Yields:
|
|
tuples of the form: (autogen_revision, hash)
|
|
"""
|
|
actuals_path = os.path.join(autogen_path, builder_name, 'actual-results.json')
|
|
|
|
# Capture the initial state of the skia-autogen checkout so that we can return
|
|
# to the same state later.
|
|
orig_rev = subprocess.check_output(['svnversion', '.'],
|
|
cwd=autogen_path).rstrip()
|
|
|
|
try:
|
|
last_change_rev, hash = _get_hash_and_last_change(gm_name, actuals_path)
|
|
while last_change_rev:
|
|
yield (str(last_change_rev), hash)
|
|
# Sync to the revision just *before* the last change
|
|
subprocess.check_call(['svn', 'update', '-r', str(last_change_rev - 1)],
|
|
cwd=autogen_path,
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE)
|
|
last_change_rev, hash = _get_hash_and_last_change(gm_name, actuals_path)
|
|
finally:
|
|
# Return the repository to its initial state.
|
|
subprocess.check_call(['svn', 'update', '-r', orig_rev],
|
|
cwd=autogen_path,
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE)
|
|
|
|
|
|
def main():
|
|
"""Find and display recent changes in the given GM."""
|
|
parser = argparse.ArgumentParser(description=sys.modules[__name__].__doc__)
|
|
parser.add_argument('builder_name', help='Name of the builder.')
|
|
parser.add_argument('gm_name', help='Name of the GM.')
|
|
parser.add_argument('--autogen-path', default=os.curdir,
|
|
help=('Path to a skia-autogen checkout. This checkout '
|
|
'will be modified but the script will attempt to '
|
|
'restore it to its original state. Default: '
|
|
'"%(default)s"'))
|
|
args = parser.parse_args()
|
|
|
|
print 'Rev\tHash'
|
|
for change in find_changes(args.builder_name, args.gm_name,
|
|
args.autogen_path):
|
|
print '\t'.join(change)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
sys.exit(main())
|