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chromium: Improve update.py (documentation + linting fixes)

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This commit is contained in:
Michael Weiss 2020-12-18 17:52:21 +01:00
parent b1fc183639
commit 9b846b9600
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1 changed files with 30 additions and 9 deletions
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39
pkgs/applications/networking/browsers/chromium/update.py
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@ -1,6 +1,9 @@
#! /usr/bin/env nix-shell
#! nix-shell -i python -p python3 nix nix-prefetch-git
"""This script automatically updates chromium, google-chrome, chromedriver, and ungoogled-chromium
via upstream-info.json."""
import csv
import json
import re
@ -19,40 +22,53 @@ BUCKET_URL = 'https://commondatastorage.googleapis.com/chromium-browser-official
JSON_PATH = dirname(abspath(__file__)) + '/upstream-info.json'
def load_json(path):
"""Loads the given JSON file."""
with open(path, 'r') as f:
return json.load(f)
def nix_prefetch_url(url, algo='sha256'):
"""Prefetches the content of the given URL."""
print(f'nix-prefetch-url {url}')
out = subprocess.check_output(['nix-prefetch-url', '--type', algo, url])
return out.decode('utf-8').rstrip()
def nix_prefetch_git(url, rev):
"""Prefetches the requested Git revision of the given repository URL."""
print(f'nix-prefetch-git {url} {rev}')
out = subprocess.check_output(['nix-prefetch-git', '--quiet', '--url', url, '--rev', rev])
return json.loads(out)
def get_file_revision(revision, file_path):
"""Fetches the requested Git revision of the given Chromium file."""
url = f'https://raw.githubusercontent.com/chromium/chromium/{revision}/{file_path}'
with urlopen(url) as http_response:
return http_response.read()
def get_matching_chromedriver(version):
"""Gets the matching chromedriver version for the given Chromium version."""
# See https://chromedriver.chromium.org/downloads/version-selection
build = re.sub('.[0-9]+$', '', version)
chromedriver_version_url = f'https://chromedriver.storage.googleapis.com/LATEST_RELEASE_{build}'
with urlopen(chromedriver_version_url) as http_response:
chromedriver_version = http_response.read().decode()
def get_chromedriver_url(system):
return f'https://chromedriver.storage.googleapis.com/{chromedriver_version}/chromedriver_{system}.zip'
return ('https://chromedriver.storage.googleapis.com/' +
f'{chromedriver_version}/chromedriver_{system}.zip')
return {
'version': chromedriver_version,
'sha256_linux': nix_prefetch_url(get_chromedriver_url('linux64')),
'sha256_darwin': nix_prefetch_url(get_chromedriver_url('mac64'))
}
def get_channel_dependencies(channel):
"""Gets all dependencies for the given Chromium version."""
deps = get_file_revision(channel['version'], 'DEPS')
gn_pattern = b"'gn_version': 'git_revision:([0-9a-f]{40})'"
gn_commit = re.search(gn_pattern, deps).group(1).decode()
@ -69,6 +85,7 @@ def get_channel_dependencies(channel):
channels = {}
last_channels = load_json(JSON_PATH)
print(f'GET {HISTORY_URL}', file=sys.stderr)
with urlopen(HISTORY_URL) as resp:
builds = csv.DictReader(iterdecode(resp, 'utf-8'))
@ -92,7 +109,9 @@ with urlopen(HISTORY_URL) as resp:
try:
channel['sha256'] = nix_prefetch_url(f'{BUCKET_URL}/chromium-{build["version"]}.tar.xz')
channel['sha256bin64'] = nix_prefetch_url(f'{DEB_URL}/google-chrome-{suffix}/google-chrome-{suffix}_{build["version"]}-1_amd64.deb')
channel['sha256bin64'] = nix_prefetch_url(
f'{DEB_URL}/google-chrome-{suffix}/' +
f'google-chrome-{suffix}_{build["version"]}-1_amd64.deb')
except subprocess.CalledProcessError:
# This build isn't actually available yet. Continue to
# the next one.
@ -104,21 +123,23 @@ with urlopen(HISTORY_URL) as resp:
channels[channel_name] = channel
with open(JSON_PATH, 'w') as out:
def get_channel_key(item):
"""Orders Chromium channels by their name."""
channel_name = item[0]
if channel_name == 'stable':
return 0
elif channel_name == 'beta':
if channel_name == 'beta':
return 1
elif channel_name == 'dev':
if channel_name == 'dev':
return 2
elif channel_name == 'ungoogled-chromium':
if channel_name == 'ungoogled-chromium':
return 3
else:
print(f'Error: Unexpected channel: {channel_name}', file=sys.stderr)
sys.exit(1)
channels['ungoogled-chromium'] = last_channels['ungoogled-chromium'] # Keep ungoogled-chromium unchanged
print(f'Error: Unexpected channel: {channel_name}', file=sys.stderr)
sys.exit(1)
# Keep ungoogled-chromium unchanged:
channels['ungoogled-chromium'] = last_channels['ungoogled-chromium']
sorted_channels = OrderedDict(sorted(channels.items(), key=get_channel_key))
json.dump(sorted_channels, out, indent=2)
out.write('\n')