llvmPackages_git: Add update-git.py
Not that pretty but it should get the job done.
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2 changed files with 72 additions and 1 deletions
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@ -21,13 +21,14 @@ let
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release_version = "12.0.0";
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candidate = ""; # empty or "rcN"
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dash-candidate = lib.optionalString (candidate != "") "-${candidate}";
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rev = ""; # When using a Git commit
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version = "${release_version}${dash-candidate}"; # differentiating these (variables) is important for RCs
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targetConfig = stdenv.targetPlatform.config;
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src = fetchFromGitHub {
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owner = "llvm";
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repo = "llvm-project";
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rev = "llvmorg-${version}";
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rev = if rev != "" then rev else "llvmorg-${version}";
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sha256 = "07jz8pywc2qqa1srdnqg5p2y4lx3ki1inpigarzgxc3j20r4gb58";
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};
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70
pkgs/development/compilers/llvm/update-git.py
Executable file
70
pkgs/development/compilers/llvm/update-git.py
Executable file
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@ -0,0 +1,70 @@
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#! /usr/bin/env nix-shell
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#! nix-shell -i python3 -p python3 nix
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import csv
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import fileinput
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import json
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import os
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import re
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import subprocess
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from codecs import iterdecode
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from datetime import datetime
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from urllib.request import urlopen, Request
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def get_latest_chromium_build():
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HISTORY_URL = 'https://omahaproxy.appspot.com/history?os=linux'
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print(f'GET {HISTORY_URL}')
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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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if build['channel'] != 'dev':
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continue
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return build
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def get_file_revision(revision, file_path):
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"""Fetches the requested Git revision of the given Chromium file."""
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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().decode()
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def get_commit(ref):
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url = f'https://api.github.com/repos/llvm/llvm-project/commits/{ref}'
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headers = {'Accept': 'application/vnd.github.v3+json'}
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request = Request(url, headers=headers)
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with urlopen(request) as http_response:
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return json.loads(http_response.read().decode())
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def nix_prefetch_url(url, algo='sha256'):
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"""Prefetches the content of the given URL."""
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print(f'nix-prefetch-url {url}')
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out = subprocess.check_output(['nix-prefetch-url', '--type', algo, '--unpack', url])
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return out.decode('utf-8').rstrip()
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chromium_build = get_latest_chromium_build()
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chromium_version = chromium_build['version']
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print(f'chromiumDev version: {chromium_version}')
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print('Getting LLVM commit...')
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clang_update_script = get_file_revision(chromium_version, 'tools/clang/scripts/update.py')
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clang_revision = re.search(r"^CLANG_REVISION = '(.+)'$", clang_update_script, re.MULTILINE).group(1)
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clang_commit_short = re.search(r"llvmorg-[0-9]+-init-[0-9]+-g([0-9a-f]{8})", clang_revision).group(1)
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release_version = re.search(r"^RELEASE_VERSION = '(.+)'$", clang_update_script, re.MULTILINE).group(1)
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commit = get_commit(clang_commit_short)
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date = datetime.fromisoformat(commit['commit']['committer']['date'].rstrip('Z')).date().isoformat()
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version = f'unstable-{date}'
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print('Prefetching source tarball...')
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hash = nix_prefetch_url(f'https://github.com/llvm/llvm-project/archive/{commit["sha"]}.tar.gz')
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print('Updating default.nix...')
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default_nix = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'git/default.nix')
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with fileinput.FileInput(default_nix, inplace=True) as f:
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for line in f:
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result = re.sub(r'^ release_version = ".+";', f' release_version = "{release_version}";', line)
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result = re.sub(r'^ version = ".+";', f' version = "{version}";', line)
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result = re.sub(r'^ rev = ".*";', f' rev = "{commit["sha"]}";', result)
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result = re.sub(r'^ sha256 = ".+";', f' sha256 = "{hash}";', result)
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print(result, end='')
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