Rename module to pyaegis, implement build with zig.

tools/build_hook.py

@@ -0,0 +1,70 @@
+"""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}")