mirror of
https://github.com/xddxdd/nix-cachyos-kernel.git
synced 2026-07-03 19:18:07 +02:00
98 lines
2.8 KiB
Python
98 lines
2.8 KiB
Python
import json
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import subprocess
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import tempfile
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from pathlib import Path
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def get_srctag(variant: str = "latest") -> str:
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with tempfile.TemporaryDirectory(ignore_cleanup_errors=True) as dir:
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subprocess.run(
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["nix", "build", ".#cachyos-kernel-input-path", "-o", f"{dir}/result"],
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check=True,
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)
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pkgbuild_path = (
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f"linux-cachyos-{variant}" if variant != "latest" else "linux-cachyos"
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)
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with open(f"{dir}/result/{pkgbuild_path}/PKGBUILD") as f:
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pkgbuild = f.read()
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script = pkgbuild + "\necho $_srctag"
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result = subprocess.run(
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["bash"],
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input=script,
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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 result.stdout.strip()
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def nix_sha256_to_sri(hash: str) -> str:
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cmd = ["nix", "hash", "convert", "--hash-algo", "sha256", "--to", "sri", hash]
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print(f"Running command: {' '.join(cmd)}")
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result = subprocess.run(cmd, capture_output=True, text=True, timeout=300)
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if result.returncode != 0:
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raise RuntimeError(
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f"nix hash command failed with return code: {result.returncode}"
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)
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output = result.stdout.strip()
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if not output:
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raise RuntimeError("nix hash output is empty")
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return output
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def run_nix_prefetch_url(url: str) -> str:
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cmd = ["nix-prefetch-url", url]
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print(f"Running command: {' '.join(cmd)}")
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result = subprocess.run(cmd, capture_output=True, text=True, timeout=300)
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if result.returncode != 0:
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raise RuntimeError(
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f"nix-prefetch-url command failed with return code: {result.returncode}"
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)
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output = result.stdout.strip()
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if not output:
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raise RuntimeError("nix-prefetch-url output is empty")
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return output
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if __name__ == "__main__":
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versions = {}
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for variant in ["latest", "lts", "rc"]:
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print(f"{variant=}")
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srctag = get_srctag(variant)
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real_version = "-".join(srctag.split("-")[1:-1])
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print(f"{srctag=} {real_version=}")
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url = f"https://github.com/CachyOS/linux/releases/download/{srctag}/{srctag}.tar.gz"
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print(f"{url=}")
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hash = run_nix_prefetch_url(url)
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hash = nix_sha256_to_sri(hash)
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print(f"{hash=}")
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versions[variant] = {
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"version": real_version,
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"url": url,
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"hash": hash,
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}
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current = Path.cwd()
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while not (current / "flake.lock").exists():
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if current == current.parent:
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raise RuntimeError(
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"Could not find flake.lock in any parent directory, exiting"
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)
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current = current.parent
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output_file = current / "kernel-cachyos" / "version.json"
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with open(output_file, "w", encoding="utf-8") as f:
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json.dump(versions, f, indent=2)
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