feat: support pyproject.toml dynamic version from attribute

Author: mbdevpl

test/test_local_git_version.py

@@ -0,0 +1,21 @@
+"""Tests of local_git_version module."""
+
+import logging
+
+import unittest
+
+
+from version_query.local_git_version import QUERIED, PREDICTED
+
+_LOG = logging.getLogger(__name__)
+
+
+class Tests(unittest.TestCase):
+
+    def test_queried(self):
+        _LOG.debug('QUERIED: %s', QUERIED)
+        self.assertIsInstance(QUERIED, str)
+
+    def test_predicted(self):
+        _LOG.debug('PREDICTED: %s', PREDICTED)
+        self.assertIsInstance(PREDICTED, str)

version_query/local_git_version.py

@@ -0,0 +1,22 @@
+"""Use this module when reading the version from an attribute is needed without Python code.
+
+For example, when using setuptools in pyproject.toml,
+one can set the version dynamically as follows:
+
+[project]
+dynamic = ["version"]
+...
+
+[tool.setuptools.dynamic]
+version = {attr = "version_query.local_git_version.PREDICTED"}
+"""
+
+import os
+import pathlib
+
+from .git_query import query_git_repo, predict_git_repo
+
+_CURRENT_FOLDER: pathlib.Path = pathlib.Path()
+_PROJECT_FOLDER: pathlib.Path = pathlib.Path(os.environ.get('PROJECT_FOLDER', _CURRENT_FOLDER))
+QUERIED: str = query_git_repo(_PROJECT_FOLDER).to_str()
+PREDICTED: str = predict_git_repo(_PROJECT_FOLDER).to_str()