Bazel extensions for pybind11
Provided rules:
pybind_extension
: Builds a python extension, automatically adding the required build flags and pybind11 dependencies. It also defines a .so target which can be manually built and copied. The arguments match apy_extension
.pybind_library
: Builds a C++ library, automatically adding the required build flags and pybind11 dependencies. This library can then be used as a dependency of apybind_extension
. The arguments match acc_library
.pybind_library_test
: Builds a C++ test for apybind_library
. The arguments match a cc_test.
To test a pybind_extension
, the most common approach is to write the test in
python and use the standard py_test
build rule.
Installation
In your WORKSPACE
file:
http_archive(
name = "pybind11_bazel",
strip_prefix = "pybind11_bazel-<stable-commit>",
urls = ["https://github.com/pybind/pybind11_bazel/archive/<stable-commit>.zip"],
)
# We still require the pybind library.
http_archive(
name = "pybind11",
build_file = "@pybind11_bazel//:pybind11.BUILD",
strip_prefix = "pybind11-<stable-version>",
urls = ["https://github.com/pybind/pybind11/archive/v<stable-version>.tar.gz"],
)
load("@pybind11_bazel//:python_configure.bzl", "python_configure")
python_configure(name = "local_config_python")
Then, in your BUILD
file:
load("@pybind11_bazel//:build_defs.bzl", "pybind_extension")