From 8da3049f573ff025aaeb78f6326b57904f8c430c Mon Sep 17 00:00:00 2001
From: Nabil Freij <nabil.freij@gmail.com>
Date: Tue, 21 Mar 2023 09:24:24 -0700
Subject: [PATCH] Update version handling to remove use of pkg_resources (#211)

---
 .gitignore           |  1 +
 setup.cfg            |  3 +--
 setup.py             |  3 ++-
 src/ablog/version.py | 21 ++++++++++++++++-----
 tox.ini              |  4 ++++
 5 files changed, 24 insertions(+), 8 deletions(-)

diff --git a/.gitignore b/.gitignore
index fc6469d8..5b6c905b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -226,3 +226,4 @@ test/
 .history/
 pydata-sphinx-theme/
 _build
+_version.py
diff --git a/setup.cfg b/setup.cfg
index 2b45672e..e9e42006 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -22,6 +22,7 @@ install_requires =
   docutils>=0.18
   feedgen>=0.9.0
   invoke>=1.6.0
+  packaging>=19.0
   python-dateutil>=2.8.2
   sphinx>=5.0.0
   watchdog>=2.1.0
@@ -57,8 +58,6 @@ filterwarnings =
   always::pytest.PytestConfigWarning
   # Sphinx and other packages raise these
   ignore:'imghdr' is deprecated and slated for removal in Python 3.13:DeprecationWarning
-  ignore:.*pkg_resources.declare_namespace.*
-  ignore:The alias.*
 
 [pycodestyle]
 max_line_length = 120
diff --git a/setup.py b/setup.py
index 7c5d69c2..24662f37 100644
--- a/setup.py
+++ b/setup.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env python
 from setuptools import setup  # isort:skip
+import os
 from itertools import chain
 
 try:
@@ -25,5 +26,5 @@
 
 setup(
     extras_require=extras,
-    use_scm_version=True,
+    use_scm_version={"write_to": os.path.join("src", "ablog", "_version.py")},
 )
diff --git a/src/ablog/version.py b/src/ablog/version.py
index 9e3decdc..e86557ff 100644
--- a/src/ablog/version.py
+++ b/src/ablog/version.py
@@ -1,6 +1,17 @@
-from pkg_resources import DistributionNotFound, get_distribution
-
 try:
-    version = get_distribution("ablog").version
-except DistributionNotFound:
-    version = "unknown.dev"
+    from ._version import version
+except Exception:
+    import warnings
+
+    warnings.warn(f'could not determine {__name__.split(".")[0]} package version; this indicates a broken installation')
+    del warnings
+
+    version = "0.0.0"
+
+from packaging.version import parse as _parse
+
+_version = _parse(version)
+major, minor, bugfix = [*_version.release, 0][:3]
+release = not _version.is_devrelease
+
+__all__ = ["version", "major", "minor", "bugfix", "release"]
diff --git a/tox.ini b/tox.ini
index b099baac..144f5aa9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -63,9 +63,13 @@ conda_deps =
     make
     myst-parser
     nbsphinx
+    packaging
     pandoc
+    pip
     pytest
     python-dateutil
+    setuptools
+    setuptools-scm
     sphinx
     sphinx-automodapi
     watchdog