used-tasks-tags

#!/usr/bin/python3

# SPDX-License-Identifier: LGPL-2.1-or-later

# Determine all tasks container tags that are used in our projects.
# Used for cleaning up obsolete tasks tags.

import asyncio
import re
import sys

from lib import testmap
from lib.aio.base import SubjectSpecification
from lib.aio.jobcontext import JobContext


async def main() -> None:
    used_tags = set()

    async with JobContext(None) as ctx:
        for repo, branches in testmap.REPO_BRANCH_CONTEXT.items():
            forge: str | None
            if ":" in repo:
                forge, _, repo = repo.partition(":")
            else:
                forge = None

            for branch in branches:
                if branch.startswith("_"):
                    continue

                subject = await ctx.resolve_subject(
                    SubjectSpecification({"forge": forge, "repo": repo, "branch": branch})
                )
                content = await subject.read_file(".cockpit-ci/container")
                if content is None:
                    print(f"Note: {repo}/{branch} has no .cockpit-ci/container", file=sys.stderr)
                    continue
                m = re.match(r"ghcr\.io/([^/]+)/([^:]+):([\w\-\.]+)", content.strip())
                if m:
                    tag = m.group(3)
                    print(f"Note: {repo}/{branch} uses tag {tag}", file=sys.stderr)
                    used_tags.add(tag)

    print(",".join(sorted(used_tags)))


if __name__ == '__main__':
    asyncio.run(main())