From 48d2f03ba551d8068ae660a2e434261ed0cde3af Mon Sep 17 00:00:00 2001
From: Anthonios Partheniou <partheniou@google.com>
Date: Tue, 21 Nov 2023 19:28:43 +0000
Subject: [PATCH] feat: add support for proto.__version__

---
 proto/__init__.py |  3 +++
 proto/version.py  | 15 +++++++++++++++
 setup.py          | 10 ++++++++--
 3 files changed, 26 insertions(+), 2 deletions(-)
 create mode 100644 proto/version.py

diff --git a/proto/__init__.py b/proto/__init__.py
index 80c7948b..7c2f9e74 100644
--- a/proto/__init__.py
+++ b/proto/__init__.py
@@ -21,6 +21,8 @@
 from .modules import define_module as module
 from .primitives import ProtoType
 
+from .version import __version__
+
 
 DOUBLE = ProtoType.DOUBLE
 FLOAT = ProtoType.FLOAT
@@ -42,6 +44,7 @@
 
 
 __all__ = (
+    "__version__",
     "Enum",
     "Field",
     "MapField",
diff --git a/proto/version.py b/proto/version.py
new file mode 100644
index 00000000..28b55af1
--- /dev/null
+++ b/proto/version.py
@@ -0,0 +1,15 @@
+# Copyright 2023 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+__version__ = "1.22.3"
diff --git a/setup.py b/setup.py
index 759494f4..3077fdf0 100644
--- a/setup.py
+++ b/setup.py
@@ -13,14 +13,20 @@
 # limitations under the License.
 
 import io
+import re
 import os
 
 from setuptools import find_packages, setup
 
-version = "1.22.3"
-
 PACKAGE_ROOT = os.path.abspath(os.path.dirname(__file__))
 
+version = None
+
+with open(os.path.join(PACKAGE_ROOT, 'proto/version.py')) as fp:
+    version_candidates = re.findall(r"(?<=\")\d+.\d+.\d+(?=\")", fp.read())
+    assert (len(version_candidates) == 1)
+    version = version_candidates[0]
+
 with io.open(os.path.join(PACKAGE_ROOT, "README.rst")) as file_obj:
     README = file_obj.read()