Merge pull request #125785 from primeos/llvm-git-auto-update

llvmPackages_git: Add update-git.py
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Michael Weiss 2021-06-05 13:59:52 +02:00 committed by GitHub
commit 141b2b111d
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2 changed files with 72 additions and 1 deletions

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@ -21,13 +21,14 @@ let
release_version = "12.0.0";
candidate = ""; # empty or "rcN"
dash-candidate = lib.optionalString (candidate != "") "-${candidate}";
rev = ""; # When using a Git commit
version = "${release_version}${dash-candidate}"; # differentiating these (variables) is important for RCs
targetConfig = stdenv.targetPlatform.config;
src = fetchFromGitHub {
owner = "llvm";
repo = "llvm-project";
rev = "llvmorg-${version}";
rev = if rev != "" then rev else "llvmorg-${version}";
sha256 = "07jz8pywc2qqa1srdnqg5p2y4lx3ki1inpigarzgxc3j20r4gb58";
};

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@ -0,0 +1,70 @@
#! /usr/bin/env nix-shell
#! nix-shell -i python3 -p python3 nix
import csv
import fileinput
import json
import os
import re
import subprocess
from codecs import iterdecode
from datetime import datetime
from urllib.request import urlopen, Request
def get_latest_chromium_build():
HISTORY_URL = 'https://omahaproxy.appspot.com/history?os=linux'
print(f'GET {HISTORY_URL}')
with urlopen(HISTORY_URL) as resp:
builds = csv.DictReader(iterdecode(resp, 'utf-8'))
for build in builds:
if build['channel'] != 'dev':
continue
return build
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().decode()
def get_commit(ref):
url = f'https://api.github.com/repos/llvm/llvm-project/commits/{ref}'
headers = {'Accept': 'application/vnd.github.v3+json'}
request = Request(url, headers=headers)
with urlopen(request) as http_response:
return json.loads(http_response.read().decode())
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, '--unpack', url])
return out.decode('utf-8').rstrip()
chromium_build = get_latest_chromium_build()
chromium_version = chromium_build['version']
print(f'chromiumDev version: {chromium_version}')
print('Getting LLVM commit...')
clang_update_script = get_file_revision(chromium_version, 'tools/clang/scripts/update.py')
clang_revision = re.search(r"^CLANG_REVISION = '(.+)'$", clang_update_script, re.MULTILINE).group(1)
clang_commit_short = re.search(r"llvmorg-[0-9]+-init-[0-9]+-g([0-9a-f]{8})", clang_revision).group(1)
release_version = re.search(r"^RELEASE_VERSION = '(.+)'$", clang_update_script, re.MULTILINE).group(1)
commit = get_commit(clang_commit_short)
date = datetime.fromisoformat(commit['commit']['committer']['date'].rstrip('Z')).date().isoformat()
version = f'unstable-{date}'
print('Prefetching source tarball...')
hash = nix_prefetch_url(f'https://github.com/llvm/llvm-project/archive/{commit["sha"]}.tar.gz')
print('Updating default.nix...')
default_nix = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'git/default.nix')
with fileinput.FileInput(default_nix, inplace=True) as f:
for line in f:
result = re.sub(r'^ release_version = ".+";', f' release_version = "{release_version}";', line)
result = re.sub(r'^ version = ".+";', f' version = "{version}";', line)
result = re.sub(r'^ rev = ".*";', f' rev = "{commit["sha"]}";', result)
result = re.sub(r'^ sha256 = ".+";', f' sha256 = "{hash}";', result)
print(result, end='')