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skia2/tools/rebaseline.py
epoger@google.com cc2e1cf13c rebaseline.py: improve readability of dry-run output 
Split off of already-reviewed https://codereview.chromium.org/15789010/ ('rebaseline.py: --tests and --configs are now FILTERS within json results')

Review URL: https://codereview.chromium.org/16509006

git-svn-id: http://skia.googlecode.com/svn/trunk@9507 2bbb7eff-a529-9590-31e7-b0007b416f81
2013-06-11 16:24:37 +00:00

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Python
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#!/usr/bin/python
'''
Copyright 2012 Google Inc.
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
'''
'''
Rebaselines the given GM tests, on all bots and all configurations.
Must be run from the gm-expected directory. If run from a git or SVN
checkout, the files will be added to the staging area for commit.
'''
# System-level imports
import argparse
import os
import subprocess
import sys
import urllib2
# Imports from within Skia
#
# Make sure that they are in the PYTHONPATH, but add them at the *end*
# so any that are already in the PYTHONPATH will be preferred.
GM_DIRECTORY = os.path.realpath(
os.path.join(os.path.dirname(os.path.dirname(__file__)), 'gm'))
if GM_DIRECTORY not in sys.path:
sys.path.append(GM_DIRECTORY)
import gm_json
# Mapping of gm-expectations subdir (under
# https://skia.googlecode.com/svn/gm-expected/ )
# to builder name (see list at http://108.170.217.252:10117/builders )
SUBDIR_MAPPING = {
'base-shuttle-win7-intel-float':
'Test-Win7-ShuttleA-HD2000-x86-Release',
'base-shuttle-win7-intel-angle':
'Test-Win7-ShuttleA-HD2000-x86-Release-ANGLE',
'base-shuttle-win7-intel-directwrite':
'Test-Win7-ShuttleA-HD2000-x86-Release-DirectWrite',
'base-shuttle_ubuntu12_ati5770':
'Test-Ubuntu12-ShuttleA-ATI5770-x86_64-Release',
'base-macmini':
'Test-Mac10.6-MacMini4.1-GeForce320M-x86-Release',
'base-macmini-lion-float':
'Test-Mac10.7-MacMini4.1-GeForce320M-x86-Release',
'base-android-galaxy-nexus':
'Test-Android-GalaxyNexus-SGX540-Arm7-Debug',
'base-android-nexus-7':
'Test-Android-Nexus7-Tegra3-Arm7-Release',
'base-android-nexus-s':
'Test-Android-NexusS-SGX540-Arm7-Release',
'base-android-xoom':
'Test-Android-Xoom-Tegra2-Arm7-Release',
'base-android-nexus-10':
'Test-Android-Nexus10-MaliT604-Arm7-Release',
}
class CommandFailedException(Exception):
pass
class Rebaseliner(object):
# params:
# json_base_url: base URL from which to read json_filename
# json_filename: filename (under json_base_url) from which to read a
# summary of results; typically "actual-results.json"
# subdirs: which platform subdirectories to rebaseline; if not specified,
# rebaseline all platform subdirectories
# tests: list of tests to rebaseline, or None if we should rebaseline
# whatever files the JSON results summary file tells us to
# configs: which configs to run for each test; this should only be
# specified if the list of tests was also specified (otherwise,
# the JSON file will give us test names and configs)
# dry_run: if True, instead of actually downloading files or adding
# files to checkout, display a list of operations that
# we would normally perform
def __init__(self, json_base_url, json_filename,
subdirs=None, tests=None, configs=None, dry_run=False):
if configs and not tests:
raise ValueError('configs should only be specified if tests ' +
'were specified also')
self._tests = tests
self._configs = configs
if not subdirs:
self._subdirs = sorted(SUBDIR_MAPPING.keys())
self._missing_json_is_fatal = False
else:
self._subdirs = subdirs
self._missing_json_is_fatal = True
self._json_base_url = json_base_url
self._json_filename = json_filename
self._dry_run = dry_run
self._is_svn_checkout = (
os.path.exists('.svn') or
os.path.exists(os.path.join(os.pardir, '.svn')))
self._is_git_checkout = (
os.path.exists('.git') or
os.path.exists(os.path.join(os.pardir, '.git')))
# If dry_run is False, execute subprocess.call(cmd).
# If dry_run is True, print the command we would have otherwise run.
# Raises a CommandFailedException if the command fails.
def _Call(self, cmd):
if self._dry_run:
print '%s' % ' '.join(cmd)
return
if subprocess.call(cmd) != 0:
raise CommandFailedException('error running command: ' +
' '.join(cmd))
# Download a single file, raising a CommandFailedException if it fails.
def _DownloadFile(self, source_url, dest_filename):
# Download into a temporary file and then rename it afterwards,
# so that we don't corrupt the existing file if it fails midway thru.
temp_filename = os.path.join(os.path.dirname(dest_filename),
'.temp-' + os.path.basename(dest_filename))
# TODO(epoger): Replace calls to "curl"/"mv" (which will only work on
# Unix) with a Python HTTP library (which should work cross-platform)
self._Call([ 'curl', '--fail', '--silent', source_url,
'--output', temp_filename ])
self._Call([ 'mv', temp_filename, dest_filename ])
# Returns the full contents of a URL, as a single string.
#
# Unlike standard URL handling, we allow relative "file:" URLs;
# for example, "file:one/two" resolves to the file ./one/two
# (relative to current working dir)
def _GetContentsOfUrl(self, url):
file_prefix = 'file:'
if url.startswith(file_prefix):
filename = url[len(file_prefix):]
return open(filename, 'r').read()
else:
return urllib2.urlopen(url).read()
# Returns a list of files that require rebaselining.
#
# Note that this returns a list of FILES, like this:
# ['imageblur_565.png', 'xfermodes_pdf.png']
# rather than a list of TESTS, like this:
# ['imageblur', 'xfermodes']
#
# If the JSON actual result summary file cannot be loaded, the behavior
# depends on self._missing_json_is_fatal:
# - if true: execution will halt with an exception
# - if false: we will log an error message but return an empty list so we
# go on to the next platform
#
# params:
# json_url: URL pointing to a JSON actual result summary file
#
# TODO(epoger): add a parameter indicating whether "no-comparison"
# results (those for which we don't have any expectations yet)
# should be rebaselined. For now, we only return failed expectations.
def _GetFilesToRebaseline(self, json_url):
if self._dry_run:
print ''
print '#'
print ('# Getting files to rebaseline from JSON summary URL %s ...'
% json_url)
try:
json_contents = self._GetContentsOfUrl(json_url)
except urllib2.HTTPError:
message = 'unable to load JSON summary URL %s' % json_url
if self._missing_json_is_fatal:
raise ValueError(message)
else:
print '# %s' % message
return []
json_dict = gm_json.LoadFromString(json_contents)
actual_results = json_dict[gm_json.JSONKEY_ACTUALRESULTS]
files_to_rebaseline = []
failed_results = actual_results[gm_json.JSONKEY_ACTUALRESULTS_FAILED]
if failed_results:
files_to_rebaseline.extend(failed_results.keys())
print '# ... found files_to_rebaseline %s' % files_to_rebaseline
if self._dry_run:
print '#'
return files_to_rebaseline
# Rebaseline a single file.
def _RebaselineOneFile(self, expectations_subdir, builder_name,
infilename, outfilename):
if self._dry_run:
print ''
print '# ' + infilename
url = ('http://skia-autogen.googlecode.com/svn/gm-actual/' +
expectations_subdir + '/' + builder_name + '/' +
expectations_subdir + '/' + infilename)
# Try to download this file, but if that fails, keep going...
#
# This not treated as a fatal failure because not all
# platforms generate all configs (e.g., Android does not
# generate PDF).
#
# We could tweak the list of configs within this tool to
# reflect which combinations the bots actually generate, and
# then fail if any of those expected combinations are
# missing... but then this tool would become useless every
# time someone tweaked the configs on the bots without
# updating this script.
try:
self._DownloadFile(source_url=url, dest_filename=outfilename)
except CommandFailedException:
print '# Couldn\'t fetch ' + url
return
# Add this file to version control (if it isn't already).
if self._is_svn_checkout:
cmd = [ 'svn', 'add', '--quiet', outfilename ]
self._Call(cmd)
cmd = [ 'svn', 'propset', '--quiet', 'svn:mime-type', 'image/png',
outfilename ];
self._Call(cmd)
elif self._is_git_checkout:
cmd = [ 'git', 'add', outfilename ]
self._Call(cmd)
# Rebaseline the given configs for a single test.
#
# params:
# expectations_subdir
# builder_name
# test: a single test to rebaseline
def _RebaselineOneTest(self, expectations_subdir, builder_name, test):
if self._configs:
configs = self._configs
else:
if (expectations_subdir == 'base-shuttle-win7-intel-angle'):
configs = [ 'angle', 'anglemsaa16' ]
else:
configs = [ '565', '8888', 'gpu', 'pdf', 'mesa', 'msaa16',
'msaa4' ]
if self._dry_run:
print ''
print '# ' + expectations_subdir + ':'
for config in configs:
infilename = test + '_' + config + '.png'
outfilename = os.path.join(expectations_subdir, infilename);
self._RebaselineOneFile(expectations_subdir=expectations_subdir,
builder_name=builder_name,
infilename=infilename,
outfilename=outfilename)
# Rebaseline all platforms/tests/types we specified in the constructor.
def RebaselineAll(self):
for subdir in self._subdirs:
if not subdir in SUBDIR_MAPPING.keys():
raise Exception(('unrecognized platform subdir "%s"; ' +
'should be one of %s') % (
subdir, SUBDIR_MAPPING.keys()))
builder_name = SUBDIR_MAPPING[subdir]
if self._tests:
for test in self._tests:
self._RebaselineOneTest(expectations_subdir=subdir,
builder_name=builder_name,
test=test)
else: # get the raw list of files that need rebaselining from JSON
json_url = '/'.join([self._json_base_url,
subdir, builder_name, subdir,
self._json_filename])
filenames = self._GetFilesToRebaseline(json_url=json_url)
for filename in filenames:
outfilename = os.path.join(subdir, filename);
self._RebaselineOneFile(expectations_subdir=subdir,
builder_name=builder_name,
infilename=filename,
outfilename=outfilename)
# main...
parser = argparse.ArgumentParser()
parser.add_argument('--configs', metavar='CONFIG', nargs='+',
help='which configurations to rebaseline, e.g. ' +
'"--configs 565 8888"; if unspecified, run a default ' +
'set of configs. This should ONLY be specified if ' +
'--tests has also been specified.')
parser.add_argument('--dry-run', action='store_true',
help='instead of actually downloading files or adding ' +
'files to checkout, display a list of operations that ' +
'we would normally perform')
parser.add_argument('--json-base-url',
help='base URL from which to read JSON_FILENAME ' +
'files; defaults to %(default)s',
default='http://skia-autogen.googlecode.com/svn/gm-actual')
parser.add_argument('--json-filename',
help='filename (under JSON_BASE_URL) to read a summary ' +
'of results from; defaults to %(default)s',
default='actual-results.json')
parser.add_argument('--subdirs', metavar='SUBDIR', nargs='+',
help='which platform subdirectories to rebaseline; ' +
'if unspecified, rebaseline all subdirs, same as ' +
'"--subdirs %s"' % ' '.join(sorted(SUBDIR_MAPPING.keys())))
parser.add_argument('--tests', metavar='TEST', nargs='+',
help='which tests to rebaseline, e.g. ' +
'"--tests aaclip bigmatrix"; if unspecified, then all ' +
'failing tests (according to the actual-results.json ' +
'file) will be rebaselined.')
args = parser.parse_args()
rebaseliner = Rebaseliner(tests=args.tests, configs=args.configs,
subdirs=args.subdirs, dry_run=args.dry_run,
json_base_url=args.json_base_url,
json_filename=args.json_filename)
rebaseliner.RebaselineAll()
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