yuzu/externals/vcpkg/scripts/generatePortVersionsDb.py

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2022-07-23 05:01:36 +04:00
import os
import sys
import subprocess
import json
import time
import shutil
import multiprocessing
from pathlib import Path
MAX_PROCESSES = multiprocessing.cpu_count()
SCRIPT_DIRECTORY = os.path.dirname(os.path.abspath(__file__))
PORTS_DIRECTORY = os.path.join(SCRIPT_DIRECTORY, '../ports')
VERSIONS_DB_DIRECTORY = os.path.join(SCRIPT_DIRECTORY, '../versions')
def get_current_git_ref():
output = subprocess.run(['git', '-C', SCRIPT_DIRECTORY, 'rev-parse', '--verify', 'HEAD'],
capture_output=True,
encoding='utf-8')
if output.returncode == 0:
return output.stdout.strip()
print(f"Failed to get git ref:", output.stderr.strip(), file=sys.stderr)
return None
def generate_versions_file(port_name):
containing_dir = os.path.join(VERSIONS_DB_DIRECTORY, f'{port_name[0]}-')
os.makedirs(containing_dir, exist_ok=True)
output_file_path = os.path.join(containing_dir, f'{port_name}.json')
if not os.path.exists(output_file_path):
env = os.environ.copy()
env['GIT_OPTIONAL_LOCKS'] = '0'
output = subprocess.run(
[os.path.join(SCRIPT_DIRECTORY, '../vcpkg'),
'x-history', port_name, '--x-json', f'--output={output_file_path}'],
capture_output=True, encoding='utf-8', env=env)
if output.returncode != 0:
print(f'x-history {port_name} failed: ',
output.stdout.strip(), file=sys.stderr)
def generate_versions_db(revision):
start_time = time.time()
# Assume each directory in ${VCPKG_ROOT}/ports is a different port
port_names = [item for item in os.listdir(
PORTS_DIRECTORY) if os.path.isdir(os.path.join(PORTS_DIRECTORY, item))]
total_count = len(port_names)
concurrency = MAX_PROCESSES / 2
print(f'Running {concurrency:.0f} parallel processes')
process_pool = multiprocessing.Pool(MAX_PROCESSES)
for i, _ in enumerate(process_pool.imap_unordered(generate_versions_file, port_names), 1):
sys.stderr.write(
f'\rProcessed: {i}/{total_count} ({(i / total_count):.2%})')
process_pool.close()
process_pool.join()
# Generate timestamp
rev_file = os.path.join(VERSIONS_DB_DIRECTORY, revision)
Path(rev_file).touch()
elapsed_time = time.time() - start_time
print(
f'\nElapsed time: {elapsed_time:.2f} seconds')
def main():
revision = get_current_git_ref()
if not revision:
print('Couldn\'t fetch current Git revision', file=sys.stderr)
sys.exit(1)
rev_file = os.path.join(VERSIONS_DB_DIRECTORY, revision)
if os.path.exists(rev_file):
print(f'Database files already exist for commit {revision}')
sys.exit(0)
generate_versions_db(revision)
if __name__ == "__main__":
main()