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"""Macro to support py_extension """
load("@bazel_skylib//lib:selects.bzl", "selects")
load("@rules_python//python:py_library.bzl", "py_library")
def py_extension(name, srcs, copts, deps = [], **kwargs):
"""Creates a C++ library to extend python
Args:
name: Name of the target
srcs: List of source files to create the target
copts: List of C++ compile options to use
deps: Libraries that the target depends on
"""
native.cc_binary(
name = name + "_binary",
srcs = srcs,
copts = copts + ["-fvisibility=hidden"],
linkopts = selects.with_or({
(
"//python/dist:osx_x86_64",
"//python/dist:osx_aarch64",
): ["-Wl,-undefined,dynamic_lookup"],
"//python/dist:windows_x86_32": ["-static-libgcc"],
"//conditions:default": [],
}),
linkshared = True,
linkstatic = True,
deps = deps + select({
"//python:limited_api_3.9": ["@python-3.9.0//:python_headers"],
"//python:full_api_3.9_win32": ["@nuget_python_i686_3.9.0//:python_full_api"],
"//python:full_api_3.9_win64": ["@nuget_python_x86-64_3.9.0//:python_full_api"],
"//python:limited_api_3.10_win32": ["@nuget_python_i686_3.10.0//:python_limited_api"],
"//python:limited_api_3.10_win64": ["@nuget_python_x86-64_3.10.0//:python_limited_api"],
"//conditions:default": ["@system_python//:python_headers"],
}),
**kwargs
)
EXT_SUFFIX = ".abi3.so"
output_file = "google/_upb/" + name + EXT_SUFFIX
native.genrule(
name = "copy" + name,
srcs = [":" + name + "_binary"],
outs = [output_file],
cmd = "cp $< $@",
visibility = ["//python:__subpackages__"],
)
py_library(
name = name,
data = [output_file],
imports = ["."],
visibility = [
"//python:__subpackages__",
"//conformance:__pkg__",
],
)
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