Add license file to pypi wheels.

Addresses https://github.com/protocolbuffers/protobuf/issues/10936.

This requires updating to the newest version of rules_python to use the new py_wheel API that includes a parameter for extra distinfo files

PiperOrigin-RevId: 493060514

WORKSPACE

@@ -80,11 +80,17 @@ system_python(
 load("@system_python//:register.bzl", "register_system_python")
 register_system_python()
 
-load("@system_python//:pip.bzl", "pip_install")
+load("@system_python//:pip.bzl", "pip_parse", "fuzzing_py_install_deps")
-pip_install(
+
+pip_parse(
     name="pip_deps",
     requirements = "//python:requirements.txt",
     requirements_overrides = {
         "3.11": "//python:requirements_311.txt",
     },
 )
+
+load("@pip_deps//:requirements.bzl", "install_deps")
+install_deps()
+
+fuzzing_py_install_deps()

bazel/system_python.bzl

@@ -27,6 +27,9 @@
 
 # Mock out rules_python's pip.bzl for cases where no system python is found.
 _mock_pip = """
+def fuzzing_py_install_deps():
+    print("WARNING: could not install fuzzing_py dependencies")
+
 def _pip_install_impl(repository_ctx):
     repository_ctx.file("BUILD.bazel", '''
 py_library(
@@ -52,9 +55,11 @@ pip_install = repository_rule(
 pip_parse = pip_install
 """
 
-# Alias rules_python's pip.bzl for cases where a system pythong is found.
+# Alias rules_python's pip.bzl for cases where a system python is found.
 _alias_pip = """
 load("@rules_python//python:pip.bzl", _pip_install = "pip_install", _pip_parse = "pip_parse")
+load("@fuzzing_py_deps//:requirements.bzl", _fuzzing_py_install_deps = "install_deps")
+
 def _get_requirements(requirements, requirements_overrides):
     for version, override in requirements_overrides.items():
         if version in "{python_version}":
@@ -74,6 +79,9 @@ def pip_parse(requirements, requirements_overrides={{}}, **kwargs):
         requirements = _get_requirements(requirements, requirements_overrides),
         **kwargs,
     )
+
+def fuzzing_py_install_deps():
+    _fuzzing_py_install_deps()
 """
 
 _build_file = """

bazel/workspace_deps.bzl

@@ -36,14 +36,14 @@ def upb_deps():
         sha256 = "5da960e5e5d92394c809629a03af3c7709d2d3d0ca731dacb3a9fb4bf28f7702",
     )
 
-    rules_python_version = "0.12.0"  # Latest @ August 31, 2022
+    rules_python_version = "0.14.0"  # Latest @ November 20, 2022
 
     maybe(
         http_archive,
         name = "rules_python",
         strip_prefix = "rules_python-{}".format(rules_python_version),
         url = "https://github.com/bazelbuild/rules_python/archive/refs/tags/{}.tar.gz".format(rules_python_version),
-        sha256 = "b593d13bb43c94ce94b483c2858e53a9b811f6f10e1e0eedc61073bd90e58d9c",
+        sha256 = "a868059c8c6dd6ad45a205cca04084c652cfe1852e6df2d5aca036f6e5438380",
     )
 
     maybe(

cmake/make_cmakelists.py

@@ -202,7 +202,7 @@ class WorkspaceFileFunctions(object):
   def __init__(self, converter):
     self.converter = converter
 
-  def load(self, *args):
+  def load(self, *args, **kwargs):
     pass
 
   def workspace(self, **kwargs):
@@ -232,7 +232,7 @@ class WorkspaceFileFunctions(object):
   def utf8_range_deps(self):
     pass
 
-  def pip_install(self, **kwargs):
+  def pip_parse(self, **kwargs):
     pass
 
   def rules_fuzzing_dependencies(self):
@@ -256,6 +256,12 @@ class WorkspaceFileFunctions(object):
   def python_nuget_package(self, **kwargs):
     pass
 
+  def install_deps(self):
+    pass
+
+  def fuzzing_py_install_deps(self):
+    pass
+
 
 class Converter(object):
   def __init__(self):

python/dist/BUILD.bazel

@@ -206,6 +206,9 @@ py_wheel(
         "Programming Language :: Python :: 3.10",
     ],
     distribution = "protobuf",
+    extra_distinfo_files = {
+        "//:LICENSE": "LICENSE",
+    },
     homepage = "https://developers.google.com/protocol-buffers/",
     license = "3-Clause BSD License",
     platform = select({
@@ -256,6 +259,9 @@ py_wheel(
         "Programming Language :: Python :: 3.10",
     ],
     distribution = "protobuf",
+    extra_distinfo_files = {
+        "//:LICENSE": "LICENSE",
+    },
     homepage = "https://developers.google.com/protocol-buffers/",
     license = "3-Clause BSD License",
     platform = "any",
@@ -281,6 +287,9 @@ py_wheel(
     testonly = True,
     abi = "none",
     distribution = "protobuftests",
+    extra_distinfo_files = {
+        "//:LICENSE": "LICENSE",
+    },
     platform = "any",
     python_tag = "py3",
     strip_path_prefixes = [