105 lines
3.6 KiB
Python
Executable file
105 lines
3.6 KiB
Python
Executable file
#! /usr/bin/env nix-shell
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#! nix-shell -i python -p python3 nix nix-prefetch-git
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import csv
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import json
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import re
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import subprocess
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import sys
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from codecs import iterdecode
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from collections import OrderedDict
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from datetime import datetime
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from os.path import abspath, dirname
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from urllib.request import urlopen
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HISTORY_URL = 'https://omahaproxy.appspot.com/history?os=linux'
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DEB_URL = 'https://dl.google.com/linux/chrome/deb/pool/main/g'
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BUCKET_URL = 'https://commondatastorage.googleapis.com/chromium-browser-official'
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JSON_PATH = dirname(abspath(__file__)) + '/upstream-info.json'
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def load_json(path):
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with open(path, 'r') as f:
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return json.load(f)
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def nix_prefetch_url(url, algo='sha256'):
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print(f'nix-prefetch-url {url}')
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out = subprocess.check_output(['nix-prefetch-url', '--type', algo, url])
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return out.decode('utf-8').rstrip()
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def nix_prefetch_git(url, rev):
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print(f'nix-prefetch-git {url} {rev}')
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out = subprocess.check_output(['nix-prefetch-git', '--quiet', '--url', url, '--rev', rev])
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return json.loads(out)
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def get_file_revision(revision, file_path):
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url = f'https://raw.githubusercontent.com/chromium/chromium/{revision}/{file_path}'
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with urlopen(url) as http_response:
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return http_response.read()
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def get_channel_dependencies(channel):
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deps = get_file_revision(channel['version'], 'DEPS')
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gn_pattern = b"'gn_version': 'git_revision:([0-9a-f]{40})'"
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gn_commit = re.search(gn_pattern, deps).group(1).decode()
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gn = nix_prefetch_git('https://gn.googlesource.com/gn', gn_commit)
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return {
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'gn': {
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'version': datetime.fromisoformat(gn['date']).date().isoformat(),
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'url': gn['url'],
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'rev': gn['rev'],
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'sha256': gn['sha256']
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}
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}
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channels = {}
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last_channels = load_json(JSON_PATH)
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print(f'GET {HISTORY_URL}', file=sys.stderr)
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with urlopen(HISTORY_URL) as resp:
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builds = csv.DictReader(iterdecode(resp, 'utf-8'))
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for build in builds:
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channel_name = build['channel']
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# If we've already found a newer build for this channel, we're
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# no longer interested in it.
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if channel_name in channels:
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continue
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# If we're back at the last build we used, we don't need to
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# keep going -- there's no new version available, and we can
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# just reuse the info from last time.
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if build['version'] == last_channels[channel_name]['version']:
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channels[channel_name] = last_channels[channel_name]
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continue
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channel = {'version': build['version']}
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suffix = 'unstable' if channel_name == 'dev' else channel_name
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try:
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channel['sha256'] = nix_prefetch_url(f'{BUCKET_URL}/chromium-{build["version"]}.tar.xz')
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channel['sha256bin64'] = nix_prefetch_url(f'{DEB_URL}/google-chrome-{suffix}/google-chrome-{suffix}_{build["version"]}-1_amd64.deb')
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except subprocess.CalledProcessError:
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# This build isn't actually available yet. Continue to
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# the next one.
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continue
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channel['deps'] = get_channel_dependencies(channel)
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channels[channel_name] = channel
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with open(JSON_PATH, 'w') as out:
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def get_channel_key(item):
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channel_name = item[0]
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if channel_name == 'stable':
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return 0
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elif channel_name == 'beta':
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return 1
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elif channel_name == 'dev':
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return 2
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else:
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print(f'Error: Unexpected channel: {channel_name}', file=sys.stderr)
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sys.exit(1)
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sorted_channels = OrderedDict(sorted(channels.items(), key=get_channel_key))
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json.dump(sorted_channels, out, indent=2)
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out.write('\n')
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