fix: Update version to 2.2.0a1 (#506)

Add version file, replace some hardcoded version strings. Still more to
go. Also update setup.py.

Supersedes #502.

django_spanner/base.py

@@ -5,7 +5,7 @@
 # https://developers.google.com/open-source/licenses/bsd
 
 from django.db.backends.base.base import BaseDatabaseWrapper
-from google.cloud import spanner_v1 as spanner, spanner_dbapi as Database
+from google.cloud import spanner_dbapi as Database, spanner_v1 as spanner
 
 from .client import DatabaseClient
 from .creation import DatabaseCreation
@@ -116,7 +116,7 @@ def get_connection_params(self):
             "project": self.settings_dict["PROJECT"],
             "instance_id": self.settings_dict["INSTANCE"],
             "database_id": self.settings_dict["NAME"],
-            "user_agent": "django_spanner/0.0.1",
+            "user_agent": "django_spanner/2.2.0a1",
             **self.settings_dict["OPTIONS"],
         }
 

docs/conf.py

@@ -19,6 +19,8 @@
 import sys
 import os
 
+from version import __version__
+
 # If extensions (or modules to document with autodoc) are in another directory,
 # add this directory to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.
@@ -28,8 +30,6 @@
 # See also: https://github.com/docascode/sphinx-docfx-yaml/issues/85
 sys.path.insert(0, os.path.abspath("."))
 
-__version__ = "alpha"
-
 # -- General configuration ------------------------------------------------
 
 # If your documentation needs a minimal Sphinx version, state it here.

google/cloud/spanner_dbapi/version.py

@@ -8,7 +8,7 @@
 
 from google.api_core.gapic_v1.client_info import ClientInfo
 
-VERSION = "0.0.1"
+VERSION = "2.2.0a1"
 DEFAULT_USER_AGENT = "django_spanner/" + VERSION
 
 vers = sys.version_info

setup.py

@@ -10,10 +10,8 @@
 from setuptools import find_packages, setup
 
 # Package metadata.
-
 name = "django-google-spanner"
 description = "Bridge to enable using Django with Spanner."
-version = "2.2a0"
 # Should be one of:
 # 'Development Status :: 3 - Alpha'
 # 'Development Status :: 4 - Beta'
@@ -22,23 +20,28 @@
 dependencies = ["sqlparse >= 0.3.0", "google-cloud-spanner >= 1.8.0"]
 extras = {}
 
+BASE_DIR = os.path.dirname(__file__)
+VERSION_FILENAME = os.path.join(BASE_DIR, "version.py")
+PACKAGE_INFO = {}
+with open(VERSION_FILENAME) as f:
+    exec(f.read(), PACKAGE_INFO)
+version = PACKAGE_INFO["__version__"]
 
 # Setup boilerplate below this line.
 
-package_root = os.path.abspath(os.path.dirname(__file__))
+package_root = os.path.abspath(BASE_DIR)
 
 readme_filename = os.path.join(package_root, "README.rst")
 with io.open(readme_filename, encoding="utf-8") as readme_file:
     readme = readme_file.read()
 
-
 setup(
     name=name,
     version=version,
     description=description,
     long_description=readme,
     author="Google LLC",
-    author_email="cloud-spanner-developers@googlegroups.com",
+    author_email="googleapis-packages@google.com",
     license="BSD",
     packages=find_packages(exclude=["tests"]),
     install_requires=dependencies,

version.py

@@ -0,0 +1,7 @@
+# Copyright 2020 Google LLC
+#
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+__version__ = "2.2.0a1"