Automate the version number in setup.py and info.py (#684)

Co-authored-by: haasad <[email protected]>

activity_browser/info.py

@@ -1,3 +1,6 @@
-# -*- coding: utf-8 -*-
-__version__ = "2.6.3"
-__version_info__ = (2, 6, 3)
+from importlib.metadata import version, PackageNotFoundError
+
+try:
+    __version__ = version(__package__)
+except PackageNotFoundError:
+    __version__ = "0.0.0"

setup.py

@@ -17,9 +17,14 @@
             pkg = pkg.replace(os.path.altsep, '.')
         packages.append(pkg)
 
+if 'VERSION' in os.environ:
+    version = os.environ['VERSION']
+else:
+    version = os.environ.get('GIT_DESCRIBE_TAG', '0.0.0')
+
 setup(
     name='activity-browser',
-    version="2.6.3",
+    version=version,
     packages=packages,
     include_package_data=True,
     author="Bernhard Steubing",