290039f8cd
This was important when building crosvm required assembling our own build tree from lots of different repositories, but now that they've moved to submodules, it's overly complicated and needlessly inconsistent with the rest of Nixpkgs.
66 lines
2.8 KiB
Python
Executable file
66 lines
2.8 KiB
Python
Executable file
#! /usr/bin/env nix-shell
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#! nix-shell -p common-updater-scripts python3
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#! nix-shell -i python
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import csv
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import json
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import re
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import shlex
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import subprocess
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from os.path import abspath, dirname, splitext
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from urllib.request import urlopen
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# CrOS version numbers look like this:
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# [<chrome-major-version>.]<tip-build>.<branch-build>.<branch-branch-build>
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#
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# As far as I can tell, branches are where internal Google
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# modifications are added to turn Chromium OS into Chrome OS, and
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# branch branches are used for fixes for specific devices. So for
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# Chromium OS they will always be 0. This is a best guess, and is not
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# documented.
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with urlopen('https://chromiumdash.appspot.com/cros/download_serving_builds_csv?deviceCategory=ChromeOS') as resp:
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reader = csv.reader(map(bytes.decode, resp))
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header = reader.__next__()
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cr_stable_index = header.index('cr_stable')
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cros_stable_index = header.index('cros_stable')
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chrome_version = []
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platform_version = []
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for line in reader:
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this_chrome_version = list(map(int, line[cr_stable_index].split('.')))
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this_platform_version = list(map(int, line[cros_stable_index].split('.')))
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chrome_version = max(chrome_version, this_chrome_version)
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platform_version = max(platform_version, this_platform_version)
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chrome_major_version = chrome_version[0]
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chromeos_tip_build = platform_version[0]
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release_branch = f'release-R{chrome_major_version}-{chromeos_tip_build}.B-chromeos'
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# Determine the git revision.
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with urlopen(f'https://chromium.googlesource.com/chromiumos/platform/crosvm/+/refs/heads/{release_branch}?format=JSON') as resp:
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resp.readline() # Remove )]}' header
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rev = json.load(resp)['commit']
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# Determine the patch version by counting the commits that have been
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# added to the release branch since it forked off the chromeos branch.
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with urlopen(f'https://chromium.googlesource.com/chromiumos/platform/crosvm/+log/refs/heads/chromeos..{rev}?format=JSON') as resp:
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resp.readline() # Remove )]}' header
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branch_commits = json.load(resp)['log']
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version = f'{chrome_major_version}.{len(branch_commits)}'
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# Update the version, git revision, and hash in crosvm's default.nix.
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subprocess.run(['update-source-version', 'crosvm', f'--rev={rev}', version])
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# Find the path to crosvm's default.nix, so Cargo.lock can be written
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# into the same directory.
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argv = ['nix-instantiate', '--eval', '--json', '-A', 'crosvm.meta.position']
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position = json.loads(subprocess.check_output(argv).decode('utf-8'))
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filename = re.match(r'[^:]*', position)[0]
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# Generate a Cargo.lock
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run = ['.',
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dirname(abspath(__file__)) + '/generate-cargo.sh',
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dirname(filename) + '/Cargo.lock']
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expr = '(import ./. {}).crosvm.overrideAttrs (_: { dontCargoSetupPostUnpack = true; })'
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subprocess.run(['nix-shell', '-E', expr, '--run', shlex.join(run)])
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