mirror of
https://github.com/saphid/frame-control.git
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72 lines
2.5 KiB
Python
72 lines
2.5 KiB
Python
#!/usr/bin/env python3
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"""Print SHA256SUMS for the eight release installers from GitHub asset metadata.
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GitHub computes each asset digest from its uploaded bytes. The workflow runs
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this only after all platform builds finish; publish-release.sh checks that the
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uploaded SHA256SUMS bytes still match these digests before publishing.
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"""
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import argparse
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import json
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import re
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import sys
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INSTALLERS = (
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"Frame-Control-mac-arm64.dmg",
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"Frame-Control-mac-arm64.zip",
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"Frame-Control-Setup-x64.exe",
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"Frame-Control-win-x64.zip",
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"Frame-Control-linux-x86_64.AppImage",
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"Frame-Control-linux-arm64.AppImage",
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"Frame-Control-linux-amd64.deb",
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"Frame-Control-linux-arm64.deb",
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)
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def find_release(lines, tag):
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releases = [json.loads(line) for line in lines if line.strip()]
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hits = [r for r in releases if r.get("tag_name") == tag]
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if not hits:
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title = re.compile(r"Frame Control " + re.escape(tag.removeprefix("v")) + r"(: .*)?")
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hits = [r for r in releases if r.get("draft")
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and str(r.get("tag_name") or "").startswith("untagged-")
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and title.fullmatch(r.get("name") or "")]
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if len(hits) != 1:
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raise ValueError(f"expected one release for {tag}; found {len(hits)}")
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return hits[0]
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def checksums(release):
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assets = release.get("assets") or []
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lines = []
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for name in INSTALLERS:
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matches = [a for a in assets if a.get("name") == name]
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if len(matches) != 1:
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raise ValueError(f"expected one asset named {name}; found {len(matches)}")
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digest = matches[0].get("digest") or ""
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if not re.fullmatch(r"sha256:[0-9a-fA-F]{64}", digest):
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raise ValueError(f"missing SHA-256 digest for {name}")
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lines.append(f"{digest[7:].lower()} {name}")
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return "\n".join(lines) + "\n"
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument("--tag", help="find exact release in JSON-lines input")
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parser.add_argument("--id", action="store_true", help="print the selected release id")
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args = parser.parse_args()
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data = sys.stdin.read()
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release = find_release(data.splitlines(), args.tag) if args.tag else json.loads(data)
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if args.id:
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print(int(release["id"]))
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else:
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# Windows text stdout changes LF to CRLF. SHA256SUMS must have the same
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# bytes on every runner, including publish-release.sh's verification.
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sys.stdout.buffer.write(checksums(release).encode("ascii"))
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if __name__ == "__main__":
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try:
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main()
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except ValueError as exc:
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sys.exit(str(exc))
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