162 lines
6.2 KiB
YAML
162 lines
6.2 KiB
YAML
name: Sync GitHub mirror metadata
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on:
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push:
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branches: [ main ]
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workflow_dispatch:
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schedule:
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- cron: "17 3 * * *"
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jobs:
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sync-metadata:
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permissions:
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contents: read
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runs-on: ubuntu-latest
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steps:
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- name: Sync description and topics
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env:
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GITEA_API_URL: ${{ gitea.api_url }}
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GITEA_CREDENTIALS: ${{ secrets.TOKEN_FOR_GITEA }}
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SOURCE_REPOSITORY: ${{ gitea.repository }}
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GITHUB_CREDENTIALS: ${{ secrets.CREDENTIALS_FOR_GITHUB }}
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run: |
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python3 - <<'PY'
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import json
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import os
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import urllib.error
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import urllib.parse
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import urllib.request
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def request_json(url, method="GET", headers=None, body=None):
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request = urllib.request.Request(
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url,
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data=json.dumps(body).encode("utf-8") if body is not None else None,
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headers=headers or {},
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method=method,
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)
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try:
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with urllib.request.urlopen(request, timeout=30) as response:
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content = response.read()
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return json.loads(content) if content else None
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except urllib.error.HTTPError as error:
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raise RuntimeError(
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f"API request failed with HTTP {error.code} ({error.reason})"
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) from None
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raw_credentials = os.environ.get("GITHUB_CREDENTIALS", "").strip()
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if not raw_credentials:
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raise RuntimeError("CREDENTIALS_FOR_GITHUB is missing or empty.")
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try:
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credentials = json.loads(raw_credentials)
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except json.JSONDecodeError:
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raise RuntimeError(
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"CREDENTIALS_FOR_GITHUB must contain valid JSON."
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) from None
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if not isinstance(credentials, dict):
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raise RuntimeError(
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"CREDENTIALS_FOR_GITHUB must be a JSON object."
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)
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github_token = credentials.get("GITHUB_PAT")
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if not isinstance(github_token, str) or not github_token.strip():
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raise RuntimeError(
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"CREDENTIALS_FOR_GITHUB must contain a non-empty GITHUB_PAT."
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)
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raw_gitea_credentials = os.environ.get("GITEA_CREDENTIALS", "").strip()
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if not raw_gitea_credentials:
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raise RuntimeError("TOKEN_FOR_GITEA is missing or empty.")
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try:
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gitea_credentials = json.loads(raw_gitea_credentials)
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except json.JSONDecodeError:
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gitea_token = raw_gitea_credentials
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else:
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if isinstance(gitea_credentials, dict):
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gitea_token = gitea_credentials.get("GITEA_TOKEN")
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elif isinstance(gitea_credentials, str):
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gitea_token = gitea_credentials
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else:
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gitea_token = None
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if not isinstance(gitea_token, str) or not gitea_token.strip():
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raise RuntimeError(
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"TOKEN_FOR_GITEA must contain a non-empty GITEA_TOKEN."
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)
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source_owner, separator, source_repo = os.environ[
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"SOURCE_REPOSITORY"
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].partition("/")
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if not separator or not source_owner or not source_repo:
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raise RuntimeError("Could not determine the Gitea source repository.")
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gitea_api_url = os.environ["GITEA_API_URL"].rstrip("/")
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source_url = f"{gitea_api_url}/repos/{source_owner}/{source_repo}"
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gitea_headers = {
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"Authorization": f"token {gitea_token.strip()}",
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"Accept": "application/json",
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}
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source = request_json(source_url, headers=gitea_headers)
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mirrors = request_json(
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f"{source_url}/push_mirrors",
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headers=gitea_headers,
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)
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if not isinstance(mirrors, list):
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raise RuntimeError("Gitea returned an invalid push mirror list.")
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github_targets = []
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for mirror in mirrors:
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remote_address = mirror.get("remote_address", "")
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if remote_address.startswith("git@github.com:"):
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mirror_path = remote_address.split(":", 1)[1]
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else:
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parsed_remote = urllib.parse.urlsplit(remote_address)
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if parsed_remote.hostname != "github.com":
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continue
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mirror_path = parsed_remote.path.lstrip("/")
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mirror_path = mirror_path.removesuffix(".git").strip("/")
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path_parts = mirror_path.split("/")
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if len(path_parts) != 2 or not all(path_parts):
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raise RuntimeError(
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"Could not determine the GitHub owner and repository "
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"from a configured push mirror."
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)
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github_targets.append(tuple(path_parts))
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if len(github_targets) != 1:
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raise RuntimeError(
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"Expected exactly one GitHub push mirror for this repository; "
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f"found {len(github_targets)}."
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)
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github_owner, github_repo = github_targets[0]
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github_api_url = (
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"https://api.github.com/repos/"
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f"{urllib.parse.quote(github_owner, safe='')}/"
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f"{urllib.parse.quote(github_repo, safe='')}"
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)
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github_headers = {
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"Authorization": f"Bearer {github_token.strip()}",
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"Accept": "application/vnd.github+json",
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"X-GitHub-Api-Version": "2022-11-28",
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"Content-Type": "application/json",
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}
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request_json(
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github_api_url,
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method="PATCH",
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headers=github_headers,
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body={"description": source.get("description") or ""},
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)
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request_json(
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f"{github_api_url}/topics",
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method="PUT",
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headers=github_headers,
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body={"names": source.get("topics") or []},
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)
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print(f"Synced description and topics to {github_owner}/{github_repo}.")
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PY
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