Files
Iris/.github/release.py
T
2026-10-23 10:41:36 -04:00

328 lines
17 KiB
Python

import argparse
import hashlib
import json
import os
from pathlib import Path
import re
import sys
import tomllib
import urllib.error
import urllib.parse
import urllib.request
import zipfile
def read_config(root: Path) -> dict:
return json.loads((root / '.github/release.json').read_text())
def targets(root: Path, config: dict) -> list[dict[str, str]]:
if config['platform'] == 'bukkit':
return [{'id': 'bukkit', 'loader': 'bukkit', 'minecraft': ''}]
manifest: Path = root / config['targets']
if manifest.is_file():
versions: dict = json.loads(manifest.read_text())
entries: list[tuple[str, list[str]]] = [(version, ['fabric', 'forge', 'neoforge']) for version in versions]
else:
entries = []
for path in sorted(manifest.glob('*.json')):
target: dict = json.loads(path.read_text())
if path.stem != target['minecraft']:
raise ValueError(f'Minecraft manifest does not match {path.name}')
entries.append((target['minecraft'], list(target['loaders'])))
matrix: list[dict[str, str]] = []
for version, loaders in entries:
if not re.fullmatch(r'[0-9]+(?:\.[0-9]+)+', version):
raise ValueError(f'Invalid Minecraft version: {version}')
if set(loaders) != {'fabric', 'forge', 'neoforge'}:
raise ValueError(f'Incomplete loader matrix for {version}')
for loader in sorted(loaders):
matrix.append({'id': f'{loader}-{version}', 'loader': loader, 'minecraft': version})
if not matrix:
raise ValueError('Release matrix is empty')
return matrix
def plan(root: Path, config: dict, event: dict, environment: dict) -> dict:
branch: str = event.get('repository', {}).get('default_branch', '')
if (environment.get('GITHUB_EVENT_NAME') != 'push' or event.get('deleted')
or not branch or event.get('ref') != f'refs/heads/{branch}'):
return {'channel': 'none'}
commit: dict = event.get('head_commit') or {}
message: str = commit.get('message', '')
beta: bool = 'B+' in message
stable: bool = 'V+' in message
if beta and stable:
raise ValueError('Use exactly one release marker: B+ or V+')
if not beta and not stable:
return {'channel': 'none'}
sha: str = environment['GITHUB_SHA']
if event.get('after') != sha or commit.get('id') != sha or not re.fullmatch(r'[a-f0-9]{40}', sha):
raise ValueError('Release commit does not match the pushed HEAD')
key: str = config['versionProperty']
properties: str = (root / 'gradle.properties').read_text()
values: list[str] = re.findall(rf'^{re.escape(key)}\s*=\s*(\S+)\s*$', properties, re.MULTILINE)
if len(values) != 1 or not re.fullmatch(r'(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)', values[0]):
raise ValueError(f'{key} must declare one stable major.minor.patch version')
run: int = int(environment['GITHUB_RUN_NUMBER'])
attempt: int = int(environment['GITHUB_RUN_ATTEMPT'])
if run < 1 or attempt < 1:
raise ValueError('Invalid workflow run identity')
version: str = f'{values[0]}-beta.{run}.{attempt}' if beta else values[0]
return {
'channel': 'beta' if beta else 'stable',
'version': version,
'version_property': key,
'tag': config['betaTag'] if beta else f'v{version}',
'sha': sha,
'run': run,
'attempt': attempt,
'matrix': {'include': targets(root, config)},
'volmlib_ref': config['volmlibRef'],
'wormholes_ref': config.get('wormholesRef', ''),
}
def collect_artifacts(directory: Path, release: dict) -> dict[str, bytes]:
expected: dict[str, dict] = {f"release-{entry['id']}": entry for entry in release['matrix']['include']}
if {path.name for path in directory.iterdir()} != set(expected):
raise ValueError('Downloaded artifacts do not match the complete release matrix')
assets: dict[str, bytes] = {}
descriptors: dict[str, str] = {'bukkit': 'plugin.yml', 'fabric': 'fabric.mod.json',
'forge': 'META-INF/mods.toml', 'neoforge': 'META-INF/neoforge.mods.toml'}
for name, target in expected.items():
folder: Path = directory / name
paths: list[Path] = list(folder.iterdir()) if folder.is_dir() and not folder.is_symlink() else []
if len(paths) != 1 or paths[0].suffix != '.jar' or paths[0].is_symlink() or not paths[0].is_file():
raise ValueError(f'{name} must contain exactly one runtime jar')
path: Path = paths[0]
loader: str = target['loader']
suffix: str = re.escape(release['version']) + r'-bukkit\.jar'
if loader != 'bukkit':
display: str = {'fabric': 'Fabric', 'forge': 'Forge', 'neoforge': 'NeoForge'}[loader]
suffix = (r'v' + re.escape(release['version']) + r' \[' + display + r'\] '
+ re.escape(target['minecraft']) + r'\+[^/\s]+\.jar')
if not re.fullmatch(r'[A-Za-z][A-Za-z0-9]*' + ('-' if loader == 'bukkit' else ' ') + suffix, path.name):
raise ValueError(f'Artifact does not match the release target: {path.name}')
with zipfile.ZipFile(path) as archive:
entries: set[str] = set(archive.namelist())
descriptor: str = descriptors[target['loader']]
if descriptor not in entries:
raise ValueError(f'{path.name} is missing {descriptor}')
excluded: set[str] = set(descriptors.values()) - {descriptor}
if 'velocity-plugin.json' in entries or entries.intersection(excluded):
raise ValueError(f'{path.name} contains an excluded platform')
contents: str = archive.read(descriptor).decode()
if loader == 'bukkit':
match: re.Match | None = re.search(r'^version:\s*[\'\"]?([^\s\'\"]+)', contents, re.MULTILINE)
version: str | None = match[1] if match else None
elif loader == 'fabric':
metadata: dict = json.loads(contents)
version = metadata.get('version')
if metadata.get('depends', {}).get('minecraft') not in (target['minecraft'], '~' + target['minecraft']):
raise ValueError(f'{path.name} declares a different Minecraft target')
else:
metadata = tomllib.loads(contents)
mods: list[dict] = metadata.get('mods', [])
version = mods[0].get('version') if len(mods) == 1 else None
dependencies: list[dict] = metadata.get('dependencies', {}).get(mods[0].get('modId'), []) if len(mods) == 1 else []
minecraft: list[str] = [entry.get('versionRange') for entry in dependencies if entry.get('modId') == 'minecraft']
if minecraft != ['[' + target['minecraft'] + ']']:
raise ValueError(f'{path.name} declares a different Minecraft target')
if version != release['version']:
raise ValueError(f'{path.name} declares a different product version')
asset_name: str = re.sub(r'[^A-Za-z0-9._-]+', '-', path.name)
if asset_name in assets:
raise ValueError(f'Duplicate release asset: {asset_name}')
assets[asset_name] = path.read_bytes()
checksums: str = ''.join(f'{hashlib.sha256(data).hexdigest()} {name}\n' for name, data in sorted(assets.items()))
assets[f"SHA256SUMS-{release['version']}.txt"] = checksums.encode()
return assets
class GitHub:
def __init__(self, repository: str, token: str):
if not re.fullmatch(r'[A-Za-z0-9_.-]+/[A-Za-z0-9_.-]+', repository):
raise ValueError('Invalid GitHub repository')
self.repository = repository
self.token = token
def request(self, method: str, path: str, payload: dict | bytes | None = None, missing: bool = False) -> dict | list | None:
url: str = path if path.startswith('https://uploads.github.com/') else f'https://api.github.com/repos/{self.repository}/{path}'
binary: bool = isinstance(payload, bytes)
data: bytes | None = payload if binary else json.dumps(payload).encode() if payload is not None else None
request: urllib.request.Request = urllib.request.Request(url, data=data, method=method, headers={
'Authorization': f'Bearer {self.token}',
'Accept': 'application/vnd.github+json',
'X-GitHub-Api-Version': '2026-03-10',
'Content-Type': 'application/octet-stream' if binary else 'application/json',
'User-Agent': 'Volmit-release',
})
try:
with urllib.request.urlopen(request, timeout=120) as response:
body: bytes = response.read()
return json.loads(body) if body else None
except urllib.error.HTTPError as error:
if missing and error.code == 404:
return None
raise RuntimeError(f'GitHub {method} {urllib.parse.urlsplit(url).path}: HTTP {error.code}') from error
def tag_commit(self, tag: str) -> str | None:
reference: dict | None = self.request('GET', f'git/ref/tags/{tag}', missing=True)
if reference is None:
return None
target: dict = reference['object']
for _ in range(8):
if target['type'] == 'commit':
return target['sha']
if target['type'] != 'tag':
break
target = self.request('GET', f"git/tags/{target['sha']}")['object']
raise ValueError(f'{tag} does not resolve to a commit')
def assets(self, release_id: int) -> list[dict]:
result: list[dict] = []
page: int = 1
while True:
batch: list[dict] = self.request('GET', f'releases/{release_id}/assets?per_page=100&page={page}')
result.extend(batch)
if len(batch) < 100:
return result
page += 1
def resolve_dependency(repository: str, reference: str, token: str) -> str:
commit: dict = GitHub(repository, token).request('GET', f'commits/{urllib.parse.quote(reference, safe="")}')
sha: str = commit['sha']
if not re.fullmatch(r'[a-f0-9]{40}', sha):
raise ValueError(f'{repository} did not resolve to a commit')
return sha
def release_metadata(existing: dict) -> dict:
match: re.Match | None = re.search(r'<!-- release: (.+) -->', existing.get('body') or '')
if match is None:
raise ValueError('Existing release has no publication identity; refusing to overwrite it')
return json.loads(match[1])
def verify_assets(existing: list[dict], assets: dict[str, bytes]) -> bool:
return {entry['name']: entry.get('digest') for entry in existing} == {
name: 'sha256:' + hashlib.sha256(data).hexdigest() for name, data in assets.items()}
def publish(github: GitHub, config: dict, release: dict, assets: dict[str, bytes]) -> str:
tag: str = release['tag']
beta: bool = release['channel'] == 'beta'
existing: dict | None = github.request('GET', f'releases/tags/{tag}', missing=True)
commit: str | None = github.tag_commit(tag)
if not beta and commit is not None and commit != release['sha']:
raise ValueError(f'{tag} already points to another commit')
if existing is not None:
metadata: dict = release_metadata(existing)
if bool(existing['prerelease']) != beta:
raise ValueError('Existing release belongs to a different release channel')
if beta and (metadata['run'], metadata['attempt']) > (release['run'], release['attempt']):
return 'Skipped older beta run'
if not beta and metadata['sha'] != release['sha']:
raise ValueError('Stable release belongs to another commit')
if not existing['draft'] and commit == release['sha'] and metadata['version'] == release['version']:
if verify_assets(github.assets(existing['id']), assets):
return 'Release already published with identical artifacts'
if not beta:
raise ValueError('Published release artifacts differ; refusing to overwrite them')
if existing.get('immutable'):
raise ValueError('Rolling beta requires mutable releases in repository settings')
if not beta and not existing['draft']:
raise ValueError('Stable release is already published')
elif beta and commit is not None:
raise ValueError('Beta tag exists without a release; refusing to move it')
identity: dict = {key: release[key] for key in ('version', 'sha', 'run', 'attempt', 'volmlib_ref', 'wormholes_ref') if key in release}
platform: str = 'Modded' if config['platform'] == 'modded' else 'CraftBukkit'
body: str = (f"{platform} jars for {config['name']} {release['version']}.\n\n"
f"Commit: `{release['sha']}`\n\n"
f"<!-- release: {json.dumps(identity, sort_keys=True)} -->")
attributes: dict = {
'tag_name': tag, 'target_commitish': release['sha'],
'name': f"{config['name']} {platform} {'Beta' if beta else release['version']}",
'body': body, 'prerelease': beta, 'make_latest': 'false',
}
if existing is None:
existing = github.request('POST', 'releases', {**attributes, 'draft': True})
elif beta:
existing = github.request('PATCH', f"releases/{existing['id']}", {**attributes, 'draft': True})
uploaded: list[dict] = github.assets(existing['id'])
by_name: dict[str, dict] = {entry['name']: entry for entry in uploaded}
for name, data in assets.items():
digest: str = 'sha256:' + hashlib.sha256(data).hexdigest()
if name in by_name:
if by_name[name].get('state') == 'starter':
github.request('DELETE', f"releases/assets/{by_name[name]['id']}")
elif by_name[name].get('digest') != digest:
raise ValueError(f'Existing asset differs: {name}')
else:
continue
upload_url: str = existing['upload_url'].split('{')[0] + '?' + urllib.parse.urlencode({'name': name})
receipt: dict = github.request('POST', upload_url, data)
if receipt.get('digest') != digest or receipt['name'] != name:
raise ValueError(f'Upload verification failed: {name}')
for entry in uploaded:
if entry['name'] not in assets:
github.request('DELETE', f"releases/assets/{entry['id']}")
commit = github.tag_commit(tag)
if commit is None:
github.request('POST', 'git/refs', {'ref': f'refs/tags/{tag}', 'sha': release['sha']})
elif commit != release['sha']:
if not beta:
raise ValueError('Stable tag changed during publication')
github.request('PATCH', f'git/refs/tags/{tag}', {'sha': release['sha'], 'force': True})
if not beta and config['platform'] == 'bukkit':
latest: dict | None = github.request('GET', 'releases/latest', missing=True)
match: re.Match | None = re.match(r'^v?(\d+)\.(\d+)\.(\d+)(?:$|-)', latest['tag_name']) if latest else None
if latest is None or (match and tuple(map(int, release['version'].split('.'))) > tuple(map(int, match.groups()))):
attributes['make_latest'] = 'true'
github.request('PATCH', f"releases/{existing['id']}", {**attributes, 'draft': False})
return f"Published {tag} at {release['sha']}"
def main() -> None:
parser: argparse.ArgumentParser = argparse.ArgumentParser()
parser.add_argument('command', choices=['plan', 'publish'])
parser.add_argument('--artifacts', type=Path)
arguments: argparse.Namespace = parser.parse_args()
root: Path = Path(__file__).resolve().parent.parent
config: dict = read_config(root)
event: dict = json.loads(Path(os.environ['GITHUB_EVENT_PATH']).read_text())
environment: dict = dict(os.environ)
if arguments.command == 'publish':
environment['GITHUB_RUN_ATTEMPT'] = environment['RELEASE_ATTEMPT']
release: dict = plan(root, config, event, environment)
if arguments.command == 'plan':
if release['channel'] != 'none':
release['volmlib_ref'] = resolve_dependency('VolmitSoftware/VolmLib', config['volmlibRef'], environment['GH_TOKEN'])
if release['wormholes_ref']:
release['wormholes_ref'] = resolve_dependency('VolmitSoftware/Wormholes', config['wormholesRef'], environment['GH_TOKEN'])
with Path(os.environ['GITHUB_OUTPUT']).open('a') as output:
for key, value in release.items():
output.write(f'{key}={json.dumps(value, separators=(",", ":")) if isinstance(value, dict) else value}\n')
print(f"Release channel: {release['channel']}")
elif release['channel'] != 'none':
if arguments.artifacts is None:
raise ValueError('Publication requires the complete artifact directory')
for key in ('volmlib_ref', 'wormholes_ref'):
if release[key]:
resolved: str = environment[f'RELEASE_{key.upper()}']
if not re.fullmatch(r'[a-f0-9]{40}', resolved):
raise ValueError(f'{key} is not a resolved dependency commit')
release[key] = resolved
github: GitHub = GitHub(os.environ['GITHUB_REPOSITORY'], os.environ['GH_TOKEN'])
print(publish(github, config, release, collect_artifacts(arguments.artifacts, release)))
if __name__ == '__main__':
try:
main()
except (ValueError, RuntimeError) as error:
print(f'::error::{error}', file=sys.stderr)
sys.exit(1)