xref: /aosp_15_r20/external/bazelbuild-rules_python/python/py_binary.bzl (revision 60517a1edbc8ecf509223e9af94a7adec7d736b8)
1# Copyright 2023 The Bazel Authors. All rights reserved.
2#
3# Licensed under the Apache License, Version 2.0 (the "License");
4# you may not use this file except in compliance with the License.
5# You may obtain a copy of the License at
6#
7#     http://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
14
15"""Public entry point for py_binary."""
16
17load("@rules_python_internal//:rules_python_config.bzl", "config")
18load("//python/private:register_extension_info.bzl", "register_extension_info")
19load("//python/private:util.bzl", "add_migration_tag")
20load("//python/private/common:py_binary_macro_bazel.bzl", _starlark_py_binary = "py_binary")
21
22# buildifier: disable=native-python
23_py_binary_impl = _starlark_py_binary if config.enable_pystar else native.py_binary
24
25def py_binary(**attrs):
26    """Creates an executable Python program.
27
28    This is the public macro wrapping the underlying rule. Args are forwarded
29    on as-is unless otherwise specified. See
30    the underlying {bzl:obj}`py_binary rule<//python/private/common:py_binary_rule_bazel.bzl%py_binary>`
31    for detailed attribute documentation.
32
33    This macro affects the following args:
34    * `python_version`: cannot be `PY2`
35    * `srcs_version`: cannot be `PY2` or `PY2ONLY`
36    * `tags`: May have special marker values added, if not already present.
37
38    Args:
39      **attrs: Rule attributes forwarded onto the underlying
40          {bzl:obj}`py_binary rule<//python/private/common:py_binary_rule_bazel.bzl%py_binary>`
41    """
42    if attrs.get("python_version") == "PY2":
43        fail("Python 2 is no longer supported: https://github.com/bazelbuild/rules_python/issues/886")
44    if attrs.get("srcs_version") in ("PY2", "PY2ONLY"):
45        fail("Python 2 is no longer supported: https://github.com/bazelbuild/rules_python/issues/886")
46
47    _py_binary_impl(**add_migration_tag(attrs))
48
49register_extension_info(
50    extension = py_binary,
51    label_regex_for_dep = "{extension_name}",
52)
53