Files
aegis-python/tools/build_hook.py
T

71 lines
2.6 KiB
Python

"""Hatch build hook for building dynamic libaegis library using Zig."""
import shutil
import subprocess
from pathlib import Path
from hatchling.builders.hooks.plugin.interface import BuildHookInterface
class BuildHook(BuildHookInterface):
"""Build dynamic library with Zig and include in wheel."""
def initialize(self, version: str, build_data: dict) -> None:
"""Build library with Zig and add it to the wheel."""
if self.target_name != "wheel":
return
if not shutil.which("zig"):
raise RuntimeError("Zig compiler not found in PATH")
libaegis_dir = Path(self.root) / "libaegis"
original_build_zig = libaegis_dir / "build.zig"
if not original_build_zig.exists():
raise RuntimeError(f"libaegis source not found at {libaegis_dir}")
# Prepare a temporary build directory (avoid touching original files)
build_dir = Path.cwd() / "libaegis-build"
build_dir.mkdir(exist_ok=True)
build_zig = build_dir / "build.zig"
build_zig.write_text(
original_build_zig.read_text(encoding="utf-8").replace(
".linkage = .static,", ".linkage = .dynamic,"
),
encoding="utf-8",
)
for res in "build.zig.zon", "src":
(build_dir / res).symlink_to(libaegis_dir / res)
self.app.display_info("[aegis] Building libaegis dynamic library with Zig...")
try:
subprocess.run(
["zig", "build", "-Drelease"],
check=True,
cwd=str(build_dir),
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
)
except subprocess.CalledProcessError as e:
output = e.stdout.decode(errors="replace") if e.stdout else ""
raise RuntimeError(f"Zig build failed:\n{output}") from e
lib_dir = build_dir / "zig-out" / "lib"
dynamic_lib = None
for lib_file in lib_dir.iterdir():
if lib_file.name.startswith("libaegis") and lib_file.suffix in (
".so",
".dylib",
".dll",
):
dynamic_lib = lib_file
break
if not dynamic_lib or not dynamic_lib.exists():
raise RuntimeError(f"Built dynamic library not found in {lib_dir}")
if "force_include" not in build_data:
build_data["force_include"] = {}
dest_rel = str(Path("build") / dynamic_lib.name)
build_data["force_include"][str(dynamic_lib)] = dest_rel
self.app.display_info(f"[aegis] Added dynamic library to wheel: {dest_rel}")