lix/releng/create_release.xsh

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import json
import subprocess
import itertools
import textwrap
from pathlib import Path
import tempfile
import hashlib
import datetime
from . import environment
from . import keys
from .version import VERSION, RELEASE_NAME, MAJOR
$RAISE_SUBPROC_ERROR = True
$XONSH_SHOW_TRACEBACK = True
RELENG_ENV = environment.STAGING
RELEASES_BUCKET = RELENG_ENV.releases_bucket
CACHE_STORE = RELENG_ENV.cache_store_uri()
REPO = RELENG_ENV.git_repo
GCROOTS_DIR = Path('./release/gcroots')
BUILT_GCROOTS_DIR = Path('./release/gcroots-build')
DRVS_TXT = Path('./release/drvs.txt')
ARTIFACTS = Path('./release/artifacts')
RELENG_MSG = "Release created with releng/create_release.xsh"
BUILD_CORES = 16
MAX_JOBS = 2
# TODO
RELEASE_SYSTEMS = ["x86_64-linux"]
def setup_creds():
key = keys.get_ephemeral_key(RELENG_ENV)
$AWS_SECRET_ACCESS_KEY = key.secret_key
$AWS_ACCESS_KEY_ID = key.id
$AWS_DEFAULT_REGION = 'garage'
$AWS_ENDPOINT_URL = environment.S3_ENDPOINT
def git_preconditions():
# verify there is nothing in index ready to stage
proc = !(git diff-index --quiet --cached HEAD --)
assert proc.rtn == 0
# verify there is nothing *stageable* and tracked
proc = !(git diff-files --quiet)
assert proc.rtn == 0
def official_release_commit_tag(force_tag=False):
print('[+] Setting officialRelease in flake.nix and tagging')
prev_branch = $(git symbolic-ref --short HEAD).strip()
git switch --detach
sed -i 's/officialRelease = false/officialRelease = true/' flake.nix
git add flake.nix
message = f'release: {VERSION} "{RELEASE_NAME}"\n\nRelease produced with releng/create_release.xsh'
git commit -m @(message)
git tag @(['-f'] if force_tag else []) -a -m @(message) @(VERSION)
return prev_branch
def merge_to_release(prev_branch):
git switch @(prev_branch)
# Create a merge back into the release branch so that git tools understand
# that the release branch contains the tag, without the release commit
# actually influencing the tree.
merge_msg = textwrap.dedent("""\
release: merge release {VERSION} back to mainline
This merge commit returns to the previous state prior to the release but leaves the tag in the branch history.
{RELENG_MSG}
""").format(VERSION=VERSION, RELENG_MSG=RELENG_MSG)
git merge -m @(merge_msg) -s ours @(VERSION)
def realise(paths: list[str]):
args = [
'--realise',
'--max-jobs',
MAX_JOBS,
'--cores',
BUILD_CORES,
'--log-format',
'bar-with-logs',
'--add-root',
BUILT_GCROOTS_DIR
]
nix-store @(args) @(paths)
def eval_jobs():
nej_output = $(nix-eval-jobs --workers 4 --gc-roots-dir @(GCROOTS_DIR) --force-recurse --flake '.#release-jobs')
return [x for x in (json.loads(s) for s in nej_output.strip().split('\n'))
if x['system'] in RELEASE_SYSTEMS
]
def upload_drv_paths_and_outputs(paths: list[str]):
proc = subprocess.Popen([
'nix',
'copy',
'-v',
'--to',
CACHE_STORE,
'--stdin',
],
stdin=subprocess.PIPE,
env=__xonsh__.env.detype(),
)
proc.stdin.write('\n'.join(itertools.chain(paths, x + '^*' for x in paths)).encode())
proc.stdin.close()
rv = proc.wait()
if rv != 0:
raise subprocess.CalledProcessError(rv, proc.args)
def make_manifest(eval_result):
manifest = {vs['system']: vs['outputs']['out'] for vs in eval_result}
def manifest_line(system, out):
return f' {system} = "{out}";'
manifest_text = textwrap.dedent("""\
# This file was generated by releng/create_release.xsh in Lix
{{
{lines}
}}
""").format(lines='\n'.join(manifest_line(s, p) for (s, p) in manifest.items()))
return manifest_text
def make_git_tarball(to: Path):
git archive --verbose --prefix=lix-@(VERSION)/ --format=tar.gz -o @(to) @(VERSION)
def confirm(prompt, expected):
resp = input(prompt)
if resp != expected:
raise ValueError('Unconfirmed')
def sha256_file(f: Path):
hasher = hashlib.sha256()
with open(f, 'rb') as h:
while data := h.read(1024 * 1024):
hasher.update(data)
return hasher.hexdigest()
def make_artifacts_dir(eval_result, d: Path):
d.mkdir(exist_ok=True, parents=True)
version_dir = d / 'lix' / f'lix-{VERSION}'
version_dir.mkdir(exist_ok=True, parents=True)
tarballs_drv = next(p for p in eval_result if p['attr'] == 'tarballs')
cp --no-preserve=mode -r @(tarballs_drv['outputs']['out'])/* @(version_dir)
# FIXME: upgrade-nix searches for manifest.nix at root, which is rather annoying
with open(d / 'manifest.nix', 'w') as h:
h.write(make_manifest(eval_result))
with open(version_dir / 'manifest.nix', 'w') as h:
h.write(make_manifest(eval_result))
print('[+] Make sources tarball')
filename = f'lix-{VERSION}.tar.gz'
git_tarball = version_dir / filename
make_git_tarball(git_tarball)
file_hash = sha256_file(git_tarball)
print(f'Hash: {file_hash}')
with open(version_dir / f'{filename}.sha256', 'w') as h:
h.write(file_hash)
def prepare_release_notes():
print('[+] Preparing release notes')
RELEASE_NOTES_PATH = Path('doc/manual/rl-next')
if RELEASE_NOTES_PATH.isdir():
notes_body = subprocess.check_output(['build-release-notes', '--change-authors', 'doc/manual/change-authors.yml', 'doc/manual/rl-next']).decode()
else:
# I guess nobody put release notes on their changes?
print('[-] Warning: seemingly missing any release notes, not worrying about it')
notes_body = ''
rl_path = Path(f'doc/manual/src/release-notes/rl-{MAJOR}.md')
existing_rl = ''
try:
with open(rl_path, 'r') as fh:
existing_rl = fh.read()
except FileNotFoundError:
pass
date = datetime.datetime.now().strftime('%Y-%m-%d')
minor_header = f'# Lix {VERSION} ({date})'
header = f'# Lix {MAJOR} "{RELEASE_NAME}"'
if existing_rl.startswith(header):
# strip the header off for minor releases
lines = existing_rl.splitlines()
header = lines[0]
existing_rl = '\n'.join(lines[1:])
else:
header += f' ({date})\n\n'
header += '\n' + minor_header + '\n'
notes = header
notes += notes_body
notes += "\n\n"
notes += existing_rl
# make pre-commit happy about one newline
notes = notes.rstrip()
notes += "\n"
with open(rl_path, 'w') as fh:
fh.write(notes)
commit_msg = textwrap.dedent("""\
release: release notes for {VERSION}
{RELENG_MSG}
""").format(VERSION=VERSION, RELENG_MSG=RELENG_MSG)
git add @(rl_path)
git rm doc/manual/rl-next/*.md
git commit -m @(commit_msg)
def verify_are_on_tag():
current_tag = $(git describe --tag).strip()
assert current_tag == VERSION
def upload_artifacts(noconfirm=False, force_push_tag=False):
assert 'AWS_SECRET_ACCESS_KEY' in __xonsh__.env
tree @(ARTIFACTS)
not noconfirm and confirm(
f'Would you like to release {ARTIFACTS} as {VERSION}? Type "I want to release this" to confirm\n',
'I want to release this'
)
print('[+] Upload to cache')
with open(DRVS_TXT) as fh:
upload_drv_paths_and_outputs([x.strip() for x in fh.readlines() if x])
print('[+] Upload to release bucket')
aws s3 cp --recursive @(ARTIFACTS)/ @(RELEASES_BUCKET)/
print('[+] git push tag')
git push @(['-f'] if force_push_tag else []) @(REPO) f'{VERSION}:refs/tags/{VERSION}'
def do_tag_merge(force_tag=False, no_check_git=False):
if not no_check_git:
git_preconditions()
prev_branch = official_release_commit_tag(force_tag=force_tag)
merge_to_release(prev_branch)
git switch --detach @(VERSION)
def build_artifacts(no_check_git=False):
if not no_check_git:
verify_are_on_tag()
git_preconditions()
print('[+] Evaluating')
eval_result = eval_jobs()
drv_paths = [x['drvPath'] for x in eval_result]
print('[+] Building')
realise(drv_paths)
with open(DRVS_TXT, 'w') as fh:
fh.write('\n'.join(drv_paths))
make_artifacts_dir(eval_result, ARTIFACTS)
print(f'[+] Done! See {ARTIFACTS}')