mirror of
https://github.com/block/buzz.git
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86 lines
2.8 KiB
Python
86 lines
2.8 KiB
Python
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#!/usr/bin/env python3
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"""Compute an exact, version-agnostic Cargo release cache key."""
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from __future__ import annotations
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import argparse
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import hashlib
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import pathlib
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import re
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import subprocess
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import sys
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ROOT = pathlib.Path(__file__).resolve().parents[1]
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DESKTOP_MANIFEST = pathlib.Path("desktop/src-tauri/Cargo.toml")
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DESKTOP_LOCK = pathlib.Path("desktop/src-tauri/Cargo.lock")
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def normalized(path: pathlib.Path, data: bytes) -> bytes:
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text = data.decode()
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if path == DESKTOP_MANIFEST:
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text, count = re.subn(
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r'(?ms)(^\[package\].*?^version\s*=\s*)"[^"]+"',
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r'\1"<desktop-version>"',
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text,
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count=1,
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)
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if count != 1:
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raise ValueError(f"could not normalize package version in {path}")
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elif path == DESKTOP_LOCK:
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text, count = re.subn(
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r'(?ms)(^name = "buzz-desktop"\nversion = )"[^"]+"',
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r'\1"<desktop-version>"',
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text,
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count=1,
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)
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if count != 1:
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raise ValueError(f"could not normalize package version in {path}")
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return text.encode()
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def main() -> int:
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parser = argparse.ArgumentParser()
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parser.add_argument("--platform", required=True)
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parser.add_argument("--target", required=True)
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parser.add_argument("--features", default="default")
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parser.add_argument("--native-inputs", required=True)
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args = parser.parse_args()
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manifest_output = subprocess.check_output(
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["git", "ls-files", "*Cargo.toml"], cwd=ROOT, text=True
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)
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paths = [ROOT / path for path in manifest_output.splitlines()]
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paths += [ROOT / "Cargo.lock", ROOT / DESKTOP_LOCK, ROOT / "rust-toolchain.toml"]
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cargo_config = ROOT / ".cargo/config.toml"
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if cargo_config.exists():
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paths.append(cargo_config)
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digest = hashlib.sha256()
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descriptors = {
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"schema": "desktop-rust-release-v1",
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"platform": args.platform,
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"target": args.target,
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"profile": "release",
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"features": args.features,
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"native-inputs": args.native_inputs,
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"rustc": subprocess.check_output(["rustc", "-Vv"], text=True).strip(),
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}
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for name, value in sorted(descriptors.items()):
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digest.update(f"{name}\0{value}\0".encode())
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for absolute in sorted(set(paths)):
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relative = absolute.relative_to(ROOT)
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digest.update(str(relative).encode() + b"\0")
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digest.update(normalized(relative, absolute.read_bytes()) + b"\0")
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print(f"desktop-rust-release-v1-{args.platform}-{args.target}-{digest.hexdigest()}")
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return 0
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if __name__ == "__main__":
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try:
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raise SystemExit(main())
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except (OSError, ValueError, subprocess.CalledProcessError) as error:
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print(f"error: {error}", file=sys.stderr)
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raise SystemExit(1)
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