qzylinra
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 --packages python3 nix-prefetch-git
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import argparse
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import json
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import subprocess
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from pathlib import Path
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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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parser = argparse.ArgumentParser()
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parser.add_argument(
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"-i",
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"--input",
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type=Path,
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default=Path(__file__).parent.resolve() / "pubspec.lock.json",
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)
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parser.add_argument("-o", "--output", type=Path, default=None)
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args = parser.parse_args()
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output_file: Path | None = args.output
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output: dict[str, str] = {}
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for name, info in json.loads(args.input.read_text()).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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output[name] = fetch_git_hash(url, rev)
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output_json = json.dumps(output, indent=2, sort_keys=True) + "\n"
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if output_file:
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output_file.write_text(output_json)
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else:
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print(output_json, end="")
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if __name__ == "__main__":
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main()
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