Build updated for upstream libaegis 0.9.0 simplified API with matching changes on Python side. Set lower MacOS build target (11.0). Build abi3 version for all supported Python versions, reducing the number of wheels. Other build cleanup.
This commit is contained in:
Leo Vasanko
+46
-78
@@ -1,100 +1,68 @@
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"""Custom build backend that builds libaegis with Zig before building the Python package."""
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import os
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import platform
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import shutil
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import subprocess
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import sys
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from pathlib import Path
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from setuptools import build_meta as _orig
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from setuptools import build_meta
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__all__ = [
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"build_sdist",
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"build_wheel",
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"build_editable",
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"get_requires_for_build_sdist",
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"get_requires_for_build_wheel",
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"prepare_metadata_for_build_wheel",
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]
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_MACOS_TARGET = "11.0"
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_prepared = False
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def _check_zig_available():
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"""Check if Zig is installed and available."""
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def _prepare():
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"""Prepare the build environment and build libaegis."""
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global _prepared
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if _prepared:
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return
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_prepared = True
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# Set macOS deployment target
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if sys.platform == "darwin" and "MACOSX_DEPLOYMENT_TARGET" not in os.environ:
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os.environ["MACOSX_DEPLOYMENT_TARGET"] = _MACOS_TARGET
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# Check Zig is available
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if shutil.which("zig") is None:
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raise RuntimeError(
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"\n" + "=" * 70 + "\n"
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"ERROR: Zig compiler not found!\n"
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"\n"
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"Building aeg requires the Zig compiler to build the libaegis\n"
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"static library. Please install Zig before building this package.\n"
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"\n"
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"Installation instructions:\n"
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" - Visit: https://ziglang.org/download/\n"
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" - Or use a package manager:\n"
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" * macOS: brew install zig\n"
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" * Linux: See https://github.com/ziglang/zig/wiki/Install-Zig-from-a-Package-Manager\n"
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" * Windows: choco install zig or scoop install zig\n"
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"\n"
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"After installing Zig, please try building again.\n" + "=" * 70 + "\n"
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"Zig compiler not found. Install from https://ziglang.org/download/"
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)
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def _build_libaegis():
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"""Build libaegis static library with Zig."""
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# Check Zig availability first
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_check_zig_available()
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# Build libaegis
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libaegis_dir = Path(__file__).parent.parent / "libaegis"
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if not libaegis_dir.exists():
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raise FileNotFoundError(
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f"libaegis directory not found at {libaegis_dir}. "
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"Cannot build static library."
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)
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print("Building libaegis static library with Zig...")
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try:
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subprocess.run(
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["zig", "build", "-Drelease"],
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cwd=libaegis_dir,
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check=True,
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capture_output=False,
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)
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print("Successfully built libaegis static library")
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except subprocess.CalledProcessError as e:
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print(
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f"\nError: Zig build failed with exit code {e.returncode}\n"
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f"Command: {' '.join(e.cmd)}\n",
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file=sys.stderr,
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)
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raise
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cmd = ["zig", "build", "-Drelease"]
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if sys.platform == "darwin":
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arch = {"arm64": "aarch64", "x86_64": "x86_64"}.get(platform.machine())
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if arch:
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cmd.append(f"-Dtarget={arch}-macos.{_MACOS_TARGET}")
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subprocess.run(cmd, cwd=libaegis_dir, check=True)
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# Expose all the standard build backend hooks
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def get_requires_for_build_wheel(config_settings=None):
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"""Return build requirements and ensure libaegis is built first."""
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_build_libaegis()
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return _orig.get_requires_for_build_wheel(config_settings)
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def get_requires_for_build_sdist(config_settings=None):
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"""Return build requirements for sdist and ensure libaegis is built first."""
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_build_libaegis()
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return _orig.get_requires_for_build_sdist(config_settings)
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_orig_prepare_metadata_for_build_wheel = _orig.prepare_metadata_for_build_wheel
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_orig_build_sdist = _orig.build_sdist
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def prepare_metadata_for_build_wheel(metadata_directory, config_settings=None):
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"""Prepare metadata and ensure libaegis is built (some frontends call this early)."""
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_build_libaegis()
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return _orig_prepare_metadata_for_build_wheel(metadata_directory, config_settings)
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def build_sdist(sdist_directory, config_settings=None):
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"""Build sdist, building libaegis first so the sdist can include built artifacts if needed."""
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_build_libaegis()
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return _orig_build_sdist(sdist_directory, config_settings)
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build_sdist = build_meta.build_sdist
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get_requires_for_build_sdist = build_meta.get_requires_for_build_sdist
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get_requires_for_build_wheel = build_meta.get_requires_for_build_wheel
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prepare_metadata_for_build_wheel = build_meta.prepare_metadata_for_build_wheel
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# Wheel build hooks - need libaegis built first
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def build_wheel(wheel_directory, config_settings=None, metadata_directory=None):
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"""Build wheel with libaegis built first."""
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_build_libaegis()
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return _orig.build_wheel(wheel_directory, config_settings, metadata_directory)
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_prepare()
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return build_meta.build_wheel(wheel_directory, config_settings, metadata_directory)
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def build_editable(wheel_directory, config_settings=None, metadata_directory=None):
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"""Build editable install with libaegis built first."""
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_build_libaegis()
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return _orig.build_editable(wheel_directory, config_settings, metadata_directory)
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_prepare()
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return build_meta.build_editable(
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wheel_directory, config_settings, metadata_directory
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)
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