52 lines
1.4 KiB
Python
Executable File
52 lines
1.4 KiB
Python
Executable File
#! /usr/bin/env nix-shell
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#! nix-shell -i python3 -p python3 nix-prefetch-git
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import json
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import subprocess
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import sys
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from pathlib import Path
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THIS_FOLDER = Path(__file__).parent.resolve()
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PUBSPEC_LOCK = THIS_FOLDER / "pubspec.lock.json"
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GIT_HASHES = THIS_FOLDER / "gitHashes.json"
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def fetch_git_hash(url: str, rev: str) -> str:
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result = subprocess.run(
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["nix-prefetch-git", "--url", url, "--rev", rev],
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capture_output=True,
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text=True,
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check=True,
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)
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return json.loads(result.stdout)["hash"]
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def main() -> None:
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if not PUBSPEC_LOCK.exists():
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sys.exit(1)
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try:
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data = json.loads(PUBSPEC_LOCK.read_text())
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except json.JSONDecodeError:
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sys.exit(1)
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output: dict[str, str] = {}
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for name, info in data.get("packages", {}).items():
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if info.get("source") != "git":
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continue
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desc = info.get("description")
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if not isinstance(desc, dict):
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continue
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url = desc.get("url")
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rev = desc.get("resolved-ref")
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if not (isinstance(url, str) and isinstance(rev, str)):
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continue
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try:
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package_hash = fetch_git_hash(url, rev)
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except subprocess.CalledProcessError:
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continue
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output[name] = package_hash
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GIT_HASHES.write_text(json.dumps(output, indent=2) + "\n")
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if __name__ == "__main__":
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main()
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