fix: use cargo lock for nix packaging

2 files changed, 0 insertions, 264 deletions

diff --git a/scripts/nix_cargo_hash.py b/scripts/nix_cargo_hash.py
deleted file mode 100644
index 1e9a28f6..00000000
--- a/scripts/nix_cargo_hash.py
+++ /dev/null
@@ -1,172 +0,0 @@
-#!/usr/bin/env python3
-from __future__ import annotations
-
-import argparse
-import re
-import shutil
-import subprocess
-import sys
-from pathlib import Path
-
-
-class NixCargoHashError(ValueError):
-    pass
-
-
-CARGO_HASH_RE = re.compile(
-    r"(?m)^(\s*cargoHash\s*=\s*)(\"sha256-[^\"]+\"|lib\.fakeHash)(;\s*)$"
-)
-GOT_HASH_RE = re.compile(r"\bgot:\s*(sha256-[A-Za-z0-9+/=]+)")
-
-
-def find_cargo_hash_assignment(package_text: str) -> str:
-    matches = list(CARGO_HASH_RE.finditer(package_text))
-    if len(matches) != 1:
-        raise NixCargoHashError(
-            f"expected exactly one cargoHash assignment, found {len(matches)}"
-        )
-    return matches[0].group(2)
-
-
-def replace_cargo_hash_assignment(package_text: str, replacement: str) -> str:
-    matches = list(CARGO_HASH_RE.finditer(package_text))
-    if len(matches) != 1:
-        raise NixCargoHashError(
-            f"expected exactly one cargoHash assignment, found {len(matches)}"
-        )
-    return CARGO_HASH_RE.sub(
-        lambda match: f"{match.group(1)}{replacement}{match.group(3)}",
-        package_text,
-    )
-
-
-def parse_got_hash(output: str) -> str:
-    hashes = GOT_HASH_RE.findall(output)
-    if len(hashes) != 1:
-        raise NixCargoHashError(
-            f"expected exactly one got: sha256-... hash, found {len(hashes)}"
-        )
-    return hashes[0]
-
-
-def run_capture(command: list[str]) -> subprocess.CompletedProcess[str]:
-    return subprocess.run(
-        command,
-        stdout=subprocess.PIPE,
-        stderr=subprocess.STDOUT,
-        text=True,
-        check=False,
-    )
-
-
-def run_checked(command: list[str]) -> None:
-    subprocess.run(command, check=True)
-
-
-def discover_cargo_hash(package_path: Path) -> tuple[str, str]:
-    if shutil.which("nix") is None:
-        raise NixCargoHashError("nix is required to refresh nix/package.nix cargoHash")
-    if not package_path.exists():
-        raise NixCargoHashError(f"{package_path} does not exist")
-
-    original_text = package_path.read_text(encoding="utf-8")
-    original_assignment = find_cargo_hash_assignment(original_text)
-    discovered_hash: str | None = None
-
-    try:
-        package_path.write_text(
-            replace_cargo_hash_assignment(original_text, "lib.fakeHash"),
-            encoding="utf-8",
-        )
-
-        system = run_capture(
-            ["nix", "eval", "--impure", "--raw", "--expr", "builtins.currentSystem"]
-        )
-        if system.returncode != 0:
-            raise NixCargoHashError(
-                system.stdout.strip() or "failed to read Nix currentSystem"
-            )
-
-        build_attr = f".#packages.{system.stdout.strip()}.herdr"
-        print(f"building {build_attr} with lib.fakeHash to discover cargoHash")
-        result = run_capture(["nix", "build", build_attr, "--no-link", "--print-build-logs"])
-        if result.returncode == 0:
-            raise NixCargoHashError(
-                "nix build succeeded with lib.fakeHash; could not discover cargoHash"
-            )
-
-        discovered_hash = parse_got_hash(result.stdout)
-    finally:
-        package_path.write_text(original_text, encoding="utf-8")
-
-    return discovered_hash, original_assignment
-
-
-def refresh_cargo_hash(package_path: Path) -> None:
-    discovered_hash, original_assignment = discover_cargo_hash(package_path)
-
-    new_assignment = f'"{discovered_hash}"'
-    if new_assignment == original_assignment:
-        print(f"nix/package.nix cargoHash is unchanged: {discovered_hash}")
-    else:
-        print(f"updating nix/package.nix cargoHash to {discovered_hash}")
-    package_path.write_text(
-        replace_cargo_hash_assignment(package_path.read_text(encoding="utf-8"), new_assignment),
-        encoding="utf-8",
-    )
-
-    print("verifying Nix flake checks")
-    run_checked(["nix", "flake", "check", "--print-build-logs"])
-    run_checked(["nix", "flake", "check", "--all-systems", "--no-build", "--print-build-logs"])
-    print("nix/package.nix cargoHash is ready")
-
-
-def check_cargo_hash(package_path: Path) -> None:
-    discovered_hash, current_assignment = discover_cargo_hash(package_path)
-    expected_assignment = f'"{discovered_hash}"'
-    if current_assignment != expected_assignment:
-        raise NixCargoHashError(
-            "nix/package.nix cargoHash is stale: "
-            f"expected {expected_assignment}, found {current_assignment}"
-        )
-    print(f"nix/package.nix cargoHash matches discovered hash: {discovered_hash}")
-
-
-def cmd_refresh(args: argparse.Namespace) -> int:
-    refresh_cargo_hash(Path(args.package))
-    return 0
-
-
-def cmd_check(args: argparse.Namespace) -> int:
-    check_cargo_hash(Path(args.package))
-    return 0
-
-
-def build_parser() -> argparse.ArgumentParser:
-    parser = argparse.ArgumentParser(description="Refresh nix/package.nix cargoHash")
-    subparsers = parser.add_subparsers(dest="command", required=True)
-
-    check = subparsers.add_parser("check", help="Check cargoHash without patching")
-    check.add_argument("--package", default="nix/package.nix")
-    check.set_defaults(func=cmd_check)
-
-    refresh = subparsers.add_parser("refresh", help="Refresh cargoHash using Nix")
-    refresh.add_argument("--package", default="nix/package.nix")
-    refresh.set_defaults(func=cmd_refresh)
-
-    return parser
-
-
-def main() -> int:
-    parser = build_parser()
-    args = parser.parse_args()
-
-    try:
-        return args.func(args)
-    except (NixCargoHashError, subprocess.CalledProcessError) as exc:
-        print(f"error: {exc}", file=sys.stderr)
-        return 1
-
-
-if __name__ == "__main__":
-    raise SystemExit(main())
diff --git a/scripts/test_nix_cargo_hash.py b/scripts/test_nix_cargo_hash.py
deleted file mode 100644
index c00b1a6c..00000000
--- a/scripts/test_nix_cargo_hash.py
+++ /dev/null
@@ -1,92 +0,0 @@
-from __future__ import annotations
-
-import unittest
-
-from scripts.nix_cargo_hash import (
-    NixCargoHashError,
-    check_cargo_hash,
-    find_cargo_hash_assignment,
-    parse_got_hash,
-    replace_cargo_hash_assignment,
-)
-
-
-PACKAGE_TEXT = """
-rustPlatform.buildRustPackage {
-  pname = "herdr";
-  cargoHash = "sha256-oldHash=";
-}
-"""
-
-
-class NixCargoHashTests(unittest.TestCase):
-    def test_find_cargo_hash_assignment_reads_single_hash(self) -> None:
-        self.assertEqual(find_cargo_hash_assignment(PACKAGE_TEXT), '"sha256-oldHash="')
-
-    def test_replace_cargo_hash_assignment_updates_single_hash(self) -> None:
-        updated = replace_cargo_hash_assignment(PACKAGE_TEXT, '"sha256-newHash="')
-
-        self.assertIn('cargoHash = "sha256-newHash=";', updated)
-        self.assertNotIn("sha256-oldHash", updated)
-
-    def test_replace_cargo_hash_assignment_accepts_fake_hash(self) -> None:
-        updated = replace_cargo_hash_assignment(PACKAGE_TEXT, "lib.fakeHash")
-
-        self.assertIn("cargoHash = lib.fakeHash;", updated)
-
-    def test_replace_cargo_hash_assignment_rejects_missing_hash(self) -> None:
-        with self.assertRaisesRegex(NixCargoHashError, "found 0"):
-            replace_cargo_hash_assignment('pname = "herdr";\n', "lib.fakeHash")
-
-    def test_replace_cargo_hash_assignment_rejects_multiple_hashes(self) -> None:
-        text = PACKAGE_TEXT + PACKAGE_TEXT
-
-        with self.assertRaisesRegex(NixCargoHashError, "found 2"):
-            replace_cargo_hash_assignment(text, "lib.fakeHash")
-
-    def test_parse_got_hash_reads_nix_hash_mismatch(self) -> None:
-        output = """
-        specified: sha256-oldHash=
-             got: sha256-newHash123+/=
-        """
-
-        self.assertEqual(parse_got_hash(output), "sha256-newHash123+/=")
-
-    def test_parse_got_hash_rejects_missing_hash(self) -> None:
-        with self.assertRaisesRegex(NixCargoHashError, "found 0"):
-            parse_got_hash("error: no hash here")
-
-    def test_parse_got_hash_rejects_multiple_hashes(self) -> None:
-        output = "got: sha256-one=\ngot: sha256-two=\n"
-
-        with self.assertRaisesRegex(NixCargoHashError, "found 2"):
-            parse_got_hash(output)
-
-    def test_check_cargo_hash_restores_file_on_failure(self) -> None:
-        import contextlib
-        import io
-        import tempfile
-        from pathlib import Path
-        from unittest import mock
-
-        with tempfile.TemporaryDirectory() as temp_dir:
-            package = Path(temp_dir) / "package.nix"
-            package.write_text(PACKAGE_TEXT, encoding="utf-8")
-
-            with mock.patch("scripts.nix_cargo_hash.shutil.which", return_value="/nix/bin/nix"):
-                with mock.patch("scripts.nix_cargo_hash.run_capture") as run_capture:
-                    run_capture.side_effect = [
-                        mock.Mock(returncode=0, stdout="x86_64-linux"),
-                        mock.Mock(returncode=1, stdout="error without got hash"),
-                    ]
-
-                    with contextlib.redirect_stdout(io.StringIO()):
-                        with self.assertRaisesRegex(NixCargoHashError, "found 0"):
-                            check_cargo_hash(package)
-
-            self.assertIn("--no-link", run_capture.call_args_list[1].args[0])
-            self.assertEqual(package.read_text(encoding="utf-8"), PACKAGE_TEXT)
-
-
-if __name__ == "__main__":
-    unittest.main()