mirror of
https://github.com/Relintai/gdnative_python.git
synced 2024-11-14 10:27:22 +01:00
105 lines
3.2 KiB
Python
105 lines
3.2 KiB
Python
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import zstandard
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import tarfile
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import json
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import shutil
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import subprocess
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from pathlib import Path
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Import("env")
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cpython_build = Dir("cpython_build")
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env["bits"] = "32"
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env["godot_binary_download_platform"] = "win32.exe"
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env["cpython_build"] = cpython_build
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env["cpython_build_dir"] = cpython_build
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env["DIST_SITE_PACKAGES"] = Dir(f"{env['DIST_PLATFORM']}/Lib/site-packages")
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### Build config for pythonscript ###
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# Cannot use CPPPATH&LIBPATH here given headers are within `cpython_build` target,
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# so Scons consider the headers are a missing target
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env.AppendUnique(CFLAGS=[f"-I{cpython_build.abspath}/include"])
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env.AppendUnique(LINKFLAGS=[f"/LIBPATH:{cpython_build.abspath}/libs"])
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env.AppendUnique(CYTHON_COMPILE_DEPS=[cpython_build])
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### Fetch Python prebuild ###
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CPYTHON_PREBUILD_URL = "https://github.com/indygreg/python-build-standalone/releases/download/20200830/cpython-3.8.5-i686-pc-windows-msvc-shared-pgo-20200830T2311.tar.zst"
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cpython_prebuild_archive = env.Download(
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target=File(CPYTHON_PREBUILD_URL.rsplit("/", 1)[1]), url=CPYTHON_PREBUILD_URL
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)
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env.NoClean(cpython_prebuild_archive)
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### Extract prebuild ###
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def extract_cpython_prebuild(target, source, env):
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archive_path = source[0].abspath
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target_path = target[0].abspath
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with open(archive_path, "rb") as fh:
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dctx = zstandard.ZstdDecompressor()
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with dctx.stream_reader(fh) as reader:
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with tarfile.open(mode="r|", fileobj=reader) as tf:
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tf.extractall(target_path)
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cpython_prebuild_src = env.Command(
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Dir("cpython_prebuild"), cpython_prebuild_archive, extract_cpython_prebuild
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)
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env.NoClean(cpython_prebuild_src)
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### Generate custom build from the prebuild ###
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def generate_cpython_build(target, source, env):
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build = Path(target[0].abspath)
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prebuild = Path(source[0].abspath) / "python"
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conf = json.loads((prebuild / "PYTHON.json").read_text())
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assert conf["version"] == "5"
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assert conf["libpython_link_mode"] == "shared"
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assert conf["target_triple"] == "i686-pc-windows-msvc"
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shutil.copytree(str(prebuild / "install"), str(build), symlinks=True)
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shutil.copytree(str(prebuild / "licenses"), str(build / "licenses"), symlinks=True)
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stdlib_path = build / "Lib"
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# Remove tests lib (pretty big and basically useless)
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shutil.rmtree(str(stdlib_path / "test"))
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# Remove .pdb debug symbols
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for pdbfile in (build / "DLLs").glob("*.pdb"):
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pdbfile.unlink()
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# Also remove __pycache__ & .pyc stuff
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for pycache in stdlib_path.glob("**/__pycache__"):
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shutil.rmtree(str(pycache))
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# Make sure site-packages is empty to avoid including pip (ensurepip should be used instead)
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shutil.rmtree(str(stdlib_path / "site-packages"))
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# Zip the stdlib to save plenty of space \o/
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if env["compressed_stdlib"]:
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shutil.make_archive(base_name=build / "python38", format="zip", root_dir=str(stdlib_path))
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shutil.rmtree(str(stdlib_path))
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stdlib_path.mkdir()
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# Oddly enough, os.py must be present (even if empty !) otherwise
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# Python failed to find it home...
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(stdlib_path / "os.py").touch()
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(stdlib_path / "site-packages").mkdir()
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env.Command(cpython_build, cpython_prebuild_src, generate_cpython_build)
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env.NoClean(cpython_build)
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