From: Scott Worley Date: Fri, 10 Apr 2020 23:40:01 +0000 (-0700) Subject: Update channels from pins X-Git-Tag: 1.0~1 X-Git-Url: http://git.scottworley.com/pinch/commitdiff_plain/736c25ebc1f9814c84429ed9dd16cd23104576f5?ds=sidebyside Update channels from pins --- diff --git a/pinch.py b/pinch.py index 0f8f00a..5bb4e95 100644 --- a/pinch.py +++ b/pinch.py @@ -2,6 +2,7 @@ import argparse import configparser import filecmp import functools +import getpass import hashlib import operator import os @@ -362,6 +363,33 @@ def git_checkout(v: Verification, channel: Channel, dest: str) -> None: v.result(git.returncode == 0 and tar.returncode == 0) +def git_get_tarball(v: Verification, channel: Channel) -> str: + with tempfile.TemporaryDirectory() as output_dir: + output_filename = os.path.join( + output_dir, channel.release_name + '.tar.xz') + with open(output_filename, 'w') as output_file: + v.status( + 'Generating tarball for git revision %s' % + channel.git_revision) + git = subprocess.Popen(['git', + '-C', + git_cachedir(channel.git_repo), + 'archive', + '--prefix=%s/' % channel.release_name, + channel.git_revision], + stdout=subprocess.PIPE) + xz = subprocess.Popen(['xz'], stdin=git.stdout, stdout=output_file) + xz.wait() + git.wait() + v.result(git.returncode == 0 and xz.returncode == 0) + + v.status('Putting tarball in Nix store') + process = subprocess.run( + ['nix-store', '--add', output_filename], capture_output=True) + v.result(process.returncode == 0) + return process.stdout.decode().strip() + + def check_channel_metadata( v: Verification, channel: Channel, @@ -425,40 +453,73 @@ def git_revision_name(v: Verification, channel: Channel) -> str: process.stdout.decode().strip()) -def make_channel(conf: configparser.SectionProxy) -> Channel: - channel = Channel(**dict(conf.items())) - if hasattr(channel, 'git_revision'): - channel.old_git_revision = channel.git_revision - del channel.git_revision - return channel - - def pin(args: argparse.Namespace) -> None: v = Verification() config = configparser.ConfigParser() config.read_file(open(args.channels_file), args.channels_file) for section in config.sections(): - channel = make_channel(config[section]) + + channel = Channel(**dict(config[section].items())) + if hasattr(channel, 'git_revision'): + channel.old_git_revision = channel.git_revision + del channel.git_revision + if 'channel_url' in config[section]: pin_channel(v, channel) - config[section]['name'] = channel.release_name + config[section]['release_name'] = channel.release_name config[section]['tarball_url'] = channel.table['nixexprs.tar.xz'].absolute_url config[section]['tarball_sha256'] = channel.table['nixexprs.tar.xz'].digest else: git_fetch(v, channel) - config[section]['name'] = git_revision_name(v, channel) + config[section]['release_name'] = git_revision_name(v, channel) config[section]['git_revision'] = channel.git_revision with open(args.channels_file, 'w') as configfile: config.write(configfile) +def update(args: argparse.Namespace) -> None: + v = Verification() + config = configparser.ConfigParser() + config.read_file(open(args.channels_file), args.channels_file) + exprs = [] + for section in config.sections(): + if 'channel_url' in config[section]: + tarball = fetch_with_nix_prefetch_url( + v, config[section]['tarball_url'], Digest16( + config[section]['tarball_sha256'])) + else: + channel = Channel(**dict(config[section].items())) + ensure_git_rev_available(v, channel) + tarball = git_get_tarball(v, channel) + exprs.append( + 'f: f { name = "%s"; channelName = "%s"; src = builtins.storePath "%s"; }' % + (config[section]['release_name'], section, tarball)) + v.status('Installing channels with nix-env') + process = subprocess.run( + [ + 'nix-env', + '--profile', + '/nix/var/nix/profiles/per-user/%s/channels' % + getpass.getuser(), + '--show-trace', + '--file', + '', + '--install', + '--from-expression'] + + exprs) + v.result(process.returncode == 0) + + def main() -> None: parser = argparse.ArgumentParser(prog='pinch') subparsers = parser.add_subparsers(dest='mode', required=True) parser_pin = subparsers.add_parser('pin') parser_pin.add_argument('channels_file', type=str) parser_pin.set_defaults(func=pin) + parser_update = subparsers.add_parser('update') + parser_update.add_argument('channels_file', type=str) + parser_update.set_defaults(func=update) args = parser.parse_args() args.func(args)