Mercurial > hg
view contrib/packaging/hg-docker @ 43442:625e7d1ffd1c
repoview: wrap changelog class when filtering
The class doesn't yet do anything. I'll move the filter-aware
overrides from the changelog class over one by one to this class in
coming patches. That will leave the changelog class simpler and will
centralize more of the filtering logic to repoview. I could not
measure any performance difference.
Differential Revision: https://phab.mercurial-scm.org/D7236
author | Martin von Zweigbergk <martinvonz@google.com> |
---|---|
date | Tue, 05 Nov 2019 14:06:11 -0800 |
parents | aaad36b88298 |
children | 99e231afc29c |
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#!/usr/bin/env python3 # # Copyright 2018 Gregory Szorc <gregory.szorc@gmail.com> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. import argparse import pathlib import shutil import subprocess import sys def get_docker() -> str: docker = shutil.which('docker.io') or shutil.which('docker') if not docker: print('could not find docker executable') return 1 try: out = subprocess.check_output([docker, '-h'], stderr=subprocess.STDOUT) if b'Jansens' in out: print('%s is the Docking System Tray; try installing docker.io' % docker) sys.exit(1) except subprocess.CalledProcessError as e: print('error calling `%s -h`: %s' % (docker, e.output)) sys.exit(1) out = subprocess.check_output([docker, 'version'], stderr=subprocess.STDOUT) lines = out.splitlines() if not any(l.startswith((b'Client:', b'Client version:')) for l in lines): print('`%s version` does not look like Docker' % docker) sys.exit(1) if not any(l.startswith((b'Server:', b'Server version:')) for l in lines): print('`%s version` does not look like Docker' % docker) sys.exit(1) return docker def get_dockerfile(path: pathlib.Path, args: list) -> bytes: with path.open('rb') as fh: df = fh.read() for k, v in args: df = df.replace(bytes('%%%s%%' % k.decode(), 'utf-8'), v) return df def build_docker_image(dockerfile: pathlib.Path, params: list, tag: str): """Build a Docker image from a templatized Dockerfile.""" docker = get_docker() dockerfile_path = pathlib.Path(dockerfile) dockerfile = get_dockerfile(dockerfile_path, params) print('building Dockerfile:') print(dockerfile.decode('utf-8', 'replace')) args = [ docker, 'build', '--build-arg', 'http_proxy', '--build-arg', 'https_proxy', '--tag', tag, '-', ] print('executing: %r' % args) p = subprocess.Popen(args, stdin=subprocess.PIPE) p.communicate(input=dockerfile) if p.returncode: raise subprocess.CalledProcessException( p.returncode, 'failed to build docker image: %s %s' % (p.stdout, p.stderr)) def command_build(args): build_args = [] for arg in args.build_arg: k, v = arg.split('=', 1) build_args.append((k.encode('utf-8'), v.encode('utf-8'))) build_docker_image(pathlib.Path(args.dockerfile), build_args, args.tag) def command_docker(args): print(get_docker()) def main() -> int: parser = argparse.ArgumentParser() subparsers = parser.add_subparsers(title='subcommands') build = subparsers.add_parser('build', help='Build a Docker image') build.set_defaults(func=command_build) build.add_argument('--build-arg', action='append', default=[], help='Substitution to perform in Dockerfile; ' 'format: key=value') build.add_argument('dockerfile', help='path to Dockerfile to use') build.add_argument('tag', help='Tag to apply to created image') docker = subparsers.add_parser('docker-path', help='Resolve path to Docker') docker.set_defaults(func=command_docker) args = parser.parse_args() return args.func(args) if __name__ == '__main__': sys.exit(main())