149 строки
4.9 KiB
Python
Executable File
149 строки
4.9 KiB
Python
Executable File
#!/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.
|
|
|
|
"""
|
|
This script runs every build as the first hook (See DEPS). If it detects that
|
|
the build should be clobbered, it will delete the contents of the build
|
|
directory.
|
|
|
|
A landmine is tripped when a builder checks out a different revision, and the
|
|
diff between the new landmines and the old ones is non-null. At this point, the
|
|
build is clobbered.
|
|
"""
|
|
|
|
import difflib
|
|
import errno
|
|
import gyp_environment
|
|
import logging
|
|
import optparse
|
|
import os
|
|
import sys
|
|
import subprocess
|
|
import time
|
|
|
|
import clobber
|
|
import landmine_utils
|
|
|
|
|
|
def get_build_dir(build_tool, src_dir, is_iphone=False):
|
|
"""
|
|
Returns output directory absolute path dependent on build and targets.
|
|
Examples:
|
|
r'c:\b\build\slave\win\build\src\out'
|
|
'/mnt/data/b/build/slave/linux/build/src/out'
|
|
'/b/build/slave/ios_rel_device/build/src/xcodebuild'
|
|
|
|
Keep this function in sync with tools/build/scripts/slave/compile.py
|
|
"""
|
|
ret = None
|
|
if build_tool == 'xcode':
|
|
ret = os.path.join(src_dir, 'xcodebuild')
|
|
elif build_tool in ['make', 'ninja', 'ninja-ios']: # TODO: Remove ninja-ios.
|
|
if 'CHROMIUM_OUT_DIR' in os.environ:
|
|
output_dir = os.environ.get('CHROMIUM_OUT_DIR').strip()
|
|
if not output_dir:
|
|
raise Error('CHROMIUM_OUT_DIR environment variable is set but blank!')
|
|
else:
|
|
output_dir = landmine_utils.gyp_generator_flags().get('output_dir', 'out')
|
|
ret = os.path.join(src_dir, output_dir)
|
|
else:
|
|
raise NotImplementedError('Unexpected GYP_GENERATORS (%s)' % build_tool)
|
|
return os.path.abspath(ret)
|
|
|
|
|
|
def clobber_if_necessary(new_landmines, src_dir):
|
|
"""Does the work of setting, planting, and triggering landmines."""
|
|
out_dir = get_build_dir(landmine_utils.builder(), src_dir)
|
|
landmines_path = os.path.normpath(os.path.join(src_dir, '.landmines'))
|
|
try:
|
|
os.makedirs(out_dir)
|
|
except OSError as e:
|
|
if e.errno == errno.EEXIST:
|
|
pass
|
|
|
|
if os.path.exists(landmines_path):
|
|
with open(landmines_path, 'r') as f:
|
|
old_landmines = f.readlines()
|
|
if old_landmines != new_landmines:
|
|
old_date = time.ctime(os.stat(landmines_path).st_ctime)
|
|
diff = difflib.unified_diff(old_landmines, new_landmines,
|
|
fromfile='old_landmines', tofile='new_landmines',
|
|
fromfiledate=old_date, tofiledate=time.ctime(), n=0)
|
|
sys.stdout.write('Clobbering due to:\n')
|
|
sys.stdout.writelines(diff)
|
|
sys.stdout.flush()
|
|
|
|
clobber.clobber(out_dir)
|
|
|
|
# Save current set of landmines for next time.
|
|
with open(landmines_path, 'w') as f:
|
|
f.writelines(new_landmines)
|
|
|
|
|
|
def process_options():
|
|
"""Returns an options object containing the configuration for this script."""
|
|
parser = optparse.OptionParser()
|
|
parser.add_option(
|
|
'-s', '--landmine-scripts', action='append',
|
|
help='Path to the script which emits landmines to stdout. The target '
|
|
'is passed to this script via option -t. Note that an extra '
|
|
'script can be specified via an env var EXTRA_LANDMINES_SCRIPT.')
|
|
parser.add_option('-d', '--src-dir',
|
|
help='Path of the source root dir. Overrides the default location of the '
|
|
'source root dir when calculating the build directory.')
|
|
parser.add_option('-v', '--verbose', action='store_true',
|
|
default=('LANDMINES_VERBOSE' in os.environ),
|
|
help=('Emit some extra debugging information (default off). This option '
|
|
'is also enabled by the presence of a LANDMINES_VERBOSE environment '
|
|
'variable.'))
|
|
|
|
options, args = parser.parse_args()
|
|
|
|
if args:
|
|
parser.error('Unknown arguments %s' % args)
|
|
|
|
logging.basicConfig(
|
|
level=logging.DEBUG if options.verbose else logging.ERROR)
|
|
|
|
if options.src_dir:
|
|
if not os.path.isdir(options.src_dir):
|
|
parser.error('Cannot find source root dir at %s' % options.src_dir)
|
|
logging.debug('Overriding source root dir. Using: %s', options.src_dir)
|
|
else:
|
|
options.src_dir = \
|
|
os.path.dirname(os.path.dirname(os.path.realpath(__file__)))
|
|
|
|
if not options.landmine_scripts:
|
|
options.landmine_scripts = [os.path.join(options.src_dir, 'build',
|
|
'get_landmines.py')]
|
|
|
|
extra_script = os.environ.get('EXTRA_LANDMINES_SCRIPT')
|
|
if extra_script:
|
|
options.landmine_scripts += [extra_script]
|
|
|
|
return options
|
|
|
|
|
|
def main():
|
|
options = process_options()
|
|
|
|
if landmine_utils.builder() in ('dump_dependency_json', 'eclipse'):
|
|
return 0
|
|
|
|
gyp_environment.SetEnvironment()
|
|
|
|
landmines = []
|
|
for s in options.landmine_scripts:
|
|
proc = subprocess.Popen([sys.executable, s], stdout=subprocess.PIPE)
|
|
output, _ = proc.communicate()
|
|
landmines.extend([('%s\n' % l.strip()) for l in output.splitlines()])
|
|
clobber_if_necessary(landmines, options.src_dir)
|
|
|
|
return 0
|
|
|
|
|
|
if __name__ == '__main__':
|
|
sys.exit(main())
|