electron/script/verify-mksnapshot.py

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#!/usr/bin/env python3
import argparse
import glob
import os
import platform
import shutil
import subprocess
import sys
from lib.util import get_electron_branding, rm_rf, scoped_cwd
PROJECT_NAME = get_electron_branding()['project_name']
PRODUCT_NAME = get_electron_branding()['product_name']
SOURCE_ROOT = os.path.abspath(os.path.dirname(os.path.dirname(__file__)))
SNAPSHOT_SOURCE = os.path.join(SOURCE_ROOT, 'spec', 'fixtures', 'testsnap.js')
def main():
args = parse_args()
source_root = os.path.abspath(args.source_root)
initial_app_path = os.path.join(source_root, args.build_dir)
app_path = create_app_copy(initial_app_path)
returncode = 0
try:
with scoped_cwd(app_path):
if args.snapshot_files_dir is None:
with open(os.path.join(app_path, 'mksnapshot_args')) as f:
mkargs = f.read().splitlines()
print('running: ' + ' '.join(mkargs + [ SNAPSHOT_SOURCE ]))
subprocess.check_call(mkargs + [ SNAPSHOT_SOURCE ], cwd=app_path)
print('ok mksnapshot successfully created snapshot_blob.bin.')
context_snapshot = 'v8_context_snapshot.bin'
if platform.system() == 'Darwin':
if os.environ.get('TARGET_ARCH') == 'arm64':
context_snapshot = 'v8_context_snapshot.arm64.bin'
else:
context_snapshot = 'v8_context_snapshot.x86_64.bin'
context_snapshot_path = os.path.join(app_path, context_snapshot)
gen_binary = get_binary_path('v8_context_snapshot_generator', \
app_path)
genargs = [ gen_binary, \
'--output_file={0}'.format(context_snapshot_path) ]
print('running: ' + ' '.join(genargs))
subprocess.check_call(genargs)
print('ok v8_context_snapshot_generator successfully created ' \
+ context_snapshot)
if args.create_snapshot_only:
return 0
else:
gen_bin_path = os.path.join(args.snapshot_files_dir, '*.bin')
generated_bin_files = glob.glob(gen_bin_path)
for bin_file in generated_bin_files:
shutil.copy2(bin_file, app_path)
test_path = os.path.join(SOURCE_ROOT, 'spec', 'fixtures', \
'snapshot-items-available')
if sys.platform == 'darwin':
bin_files = glob.glob(os.path.join(app_path, '*.bin'))
app_dir = os.path.join(app_path, '{0}.app'.format(PRODUCT_NAME))
electron = os.path.join(app_dir, 'Contents', 'MacOS', PRODUCT_NAME)
bin_out_path = os.path.join(app_dir, 'Contents', 'Frameworks',
'{0} Framework.framework'.format(PROJECT_NAME),
'Resources')
for bin_file in bin_files:
shutil.copy2(bin_file, bin_out_path)
elif sys.platform == 'win32':
electron = os.path.join(app_path, '{0}.exe'.format(PROJECT_NAME))
else:
electron = os.path.join(app_path, PROJECT_NAME)
print('running: ' + ' '.join([electron, test_path]))
subprocess.check_call([electron, test_path])
print('ok successfully used custom snapshot.')
except subprocess.CalledProcessError as e:
print('not ok an error was encountered while testing mksnapshot.')
print(e)
returncode = e.returncode
except KeyboardInterrupt:
print('Other error')
returncode = 0
print('Returning with error code: {0}'.format(returncode))
return returncode
# Create copy of app to install custom snapshot
def create_app_copy(initial_app_path):
print('Creating copy of app for testing')
app_path = os.path.join(os.path.dirname(initial_app_path),
os.path.basename(initial_app_path)
+ '-mksnapshot-test')
rm_rf(app_path)
shutil.copytree(initial_app_path, app_path, symlinks=True)
return app_path
def get_binary_path(binary_name, root_path):
if sys.platform == 'win32':
binary_path = os.path.join(root_path, '{0}.exe'.format(binary_name))
else:
binary_path = os.path.join(root_path, binary_name)
return binary_path
def parse_args():
parser = argparse.ArgumentParser(description='Test mksnapshot')
parser.add_argument('-b', '--build-dir',
help='Path to an Electron build folder. \
Relative to the --source-root.',
default=None,
required=True)
parser.add_argument('--create-snapshot-only',
help='Just create snapshot files, but do not run test',
action='store_true')
parser.add_argument('--snapshot-files-dir',
help='Directory containing snapshot files to use \
for testing',
default=None,
required=False)
parser.add_argument('--source-root',
default=SOURCE_ROOT,
required=False)
return parser.parse_args()
if __name__ == '__main__':
sys.exit(main())