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admin-commands: move the chainsaw extension to the admin commands module...
admin-commands: move the chainsaw extension to the admin commands module Activating an extension is always a little bit of a chore and the long name, options and "chainsaw" bits are deterrent enough. This also allows us to help the discoverability for people looking for repo "administration" tools, with the widest semantic of "administration".

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hg-docker
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Gregory Szorc
packaging: replace dockerlib.sh with a Python script...
r38476 #!/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
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Gregory Szorc
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r38476 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:
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r44058 print(
'%s is the Docking System Tray; try installing docker.io'
% docker
)
Gregory Szorc
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r38476 sys.exit(1)
except subprocess.CalledProcessError as e:
print('error calling `%s -h`: %s' % (docker, e.output))
sys.exit(1)
Gregory Szorc
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r44058 out = subprocess.check_output([docker, 'version'], stderr=subprocess.STDOUT)
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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
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r38476 def get_dockerfile(path: pathlib.Path, args: list) -> bytes:
with path.open('rb') as fh:
df = fh.read()
for k, v in args:
Mathias De Mare
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r41270 df = df.replace(bytes('%%%s%%' % k.decode(), 'utf-8'), v)
Gregory Szorc
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return df
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Gregory Szorc
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r38476 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',
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r44058 '--build-arg',
'http_proxy',
'--build-arg',
'https_proxy',
'--tag',
tag,
Gregory Szorc
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r38476 '-',
]
print('executing: %r' % args)
Mathias De Mare
hg-docker: fix Python 3.4 compatibility (for CentOS 7)...
r41269 p = subprocess.Popen(args, stdin=subprocess.PIPE)
p.communicate(input=dockerfile)
if p.returncode:
raise subprocess.CalledProcessException(
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r44058 p.returncode,
'failed to build docker image: %s %s' % (p.stdout, p.stderr),
)
Gregory Szorc
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r38476
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')))
Gregory Szorc
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r44058 build_docker_image(pathlib.Path(args.dockerfile), build_args, args.tag)
Gregory Szorc
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def command_docker(args):
print(get_docker())
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Gregory Szorc
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r38476 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)
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r44058 build.add_argument(
'--build-arg',
action='append',
default=[],
help='Substitution to perform in Dockerfile; ' 'format: key=value',
)
Gregory Szorc
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r38476 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)
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r38476 if __name__ == '__main__':
sys.exit(main())