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#!/usr/bin/env python
#
# Copyright 2015 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.
'''Generate buildbot specs for all buildbots.'''
import datetime
import imp
import json
import os
import re
import subprocess
import sys
import tempfile
SKIA_DIR = os.path.abspath(os.path.join(
os.path.dirname(os.path.realpath(__file__)),
os.pardir, os.pardir))
BUILDBOT_SPEC_FILE = os.path.join(SKIA_DIR, 'tools', 'buildbot_spec.py')
SKIA_RECIPES = [
'swarm_compile.py',
'swarm_housekeeper.py',
'swarm_perf.py',
'swarm_RecreateSKPs.py',
'swarm_test.py',
'swarm_trigger.py'
]
def prettier_print(obj, indent, stream=sys.stdout, max_line_length=80):
"""Pretty-print the object, in a nicer format than pprint."""
def _breakline(line):
"""Break the line to fit under N characters."""
# If we're under the limit, just return.
if len(line) <= max_line_length:
return [line]
# Dict entries.
m = re.match(r'^(\s+)(.+): (.+)$', line)
if m:
return (_breakline(m.groups()[0] + m.groups()[1] + ':') +
_breakline(m.groups()[0] + ' ' + m.groups()[2]))
# List entries and dict keys.
m = re.match(r"^(\s+)'(.+)'([:,])$", line)
if m:
prefix = m.groups()[0]
content = m.groups()[1]
max_len = max_line_length - len(prefix) - len("(''):")
parts = []
while len(content) > max_len:
parts.append(content[:max_len])
content = content[max_len:]
parts.append(content)
lines = _breakline(prefix + "('" + parts[0] + "'")
for p in parts[1:-1]:
lines.extend(_breakline(prefix + " '" + p + "'"))
lines.extend(_breakline(prefix + " '" + parts[-1] + "')" + m.groups()[2]))
return lines
class LineBreakingStream(object):
"""Stream wrapper which writes line-by-line, breaking them as needed."""
def __init__(self, backing_stream):
self._backing_stream = backing_stream
self._current_line = ''
def _writeline(self, line):
for l in _breakline(line):
self._backing_stream.write(l + '\n')
def write(self, s):
self._current_line += s
split = self._current_line.split('\n')
for w in split[:-1]:
self._writeline(w)
self._current_line = split[len(split)-1]
def flush(self):
self._writeline(self._current_line)
def _pprint(obj, indent, stream):
indent_str = ' ' * indent
if isinstance(obj, dict):
stream.write('{\n')
for k in sorted(obj.iterkeys()):
stream.write(indent_str + '\'%s\': ' % k)
_pprint(obj[k], indent + 2, stream=stream)
stream.write(',\n')
stream.write(' ' * (indent-2) + '}')
elif isinstance(obj, list):
stream.write('[\n')
for v in obj:
stream.write(indent_str)
_pprint(v, indent + 2, stream=stream)
stream.write(',\n')
stream.write(' ' * (indent-2) + ']')
elif isinstance(obj, basestring):
stream.write('\'%s\'' % obj)
elif isinstance(obj, bool):
if obj:
stream.write('True')
else:
stream.write('False')
else:
stream.write(obj)
s = LineBreakingStream(stream)
_pprint(obj, indent, stream=s)
s.flush()
def get_bots():
"""Find all of the bots referenced in Skia recipes."""
recipes = os.path.join(SKIA_DIR, 'infra', 'bots', 'recipes')
bots = []
for skia_recipe in SKIA_RECIPES:
skia_recipe = os.path.join(recipes, skia_recipe)
skia = imp.load_source('skia', skia_recipe)
for _, slaves in skia.TEST_BUILDERS.iteritems():
for _, builders in slaves.iteritems():
bots.extend(builders)
bots.sort()
return bots
def main():
"""Generate a spec for each of the above bots. Dump them all to a file."""
# Get the list of bots.
bots = get_bots()
# Create the fake specs.
specs = {}
tmp_spec_file = tempfile.NamedTemporaryFile(delete=False)
tmp_spec_file.close()
try:
for bot in bots:
subprocess.check_call(['python', BUILDBOT_SPEC_FILE,
tmp_spec_file.name, bot])
with open(tmp_spec_file.name) as f:
spec = json.load(f)
spec['dm_flags'] = ['--dummy-flags']
spec['nanobench_flags'] = ['--dummy-flags']
specs[bot] = spec
finally:
os.remove(tmp_spec_file.name)
out = os.path.join(
SKIA_DIR, 'infra', 'bots', 'recipe_modules', 'skia', 'fake_specs.py')
with open(out, 'w') as f:
f.write('''# Copyright 2016 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.
# This file is generated by the %s script.
FAKE_SPECS = ''' % sys.argv[0])
prettier_print(specs, indent=2, stream=f)
print 'Wrote output to %s' % out
if __name__ == '__main__':
main()
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