Move fully to pyproject.toml

This change also removes compatiblity with EOL'ed python 3.6 and 3.7

This removes the need for custom logic in setup.py and reduces
duplication of project metadata.

Author: lunacd

.github/workflows/workflow.yml

@@ -24,7 +24,7 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        python: [ '3.6', '3.8', '3.12' ]
+        python: [ '3.8', '3.12' ]
     steps:
       - uses: actions/checkout@v4
 

patch_ng.py

@@ -29,11 +29,7 @@
     SOFTWARE.
 """
 from __future__ import print_function
-
-__author__ = "Conan.io <info@conan.io>"
-__version__ = "1.18.0"
-__license__ = "MIT"
-__url__ = "https://github.com/conan-io/python-patch"
+import importlib.metadata
 
 import copy
 import logging
@@ -1304,7 +1300,7 @@ def main():
   opt = OptionParser(usage="1. %prog [options] unified.diff\n"
                     "       2. %prog [options] http://host/patch\n"
                     "       3. %prog [options] -- < unified.diff",
-                     version="python-patch %s" % __version__)
+                     version="python-patch %s" % importlib.metadata.version('patch_ng'))
   opt.add_option("-q", "--quiet", action="store_const", dest="verbosity",
                                   const=0, help="print only warnings and errors", default=1)
   opt.add_option("-v", "--verbose", action="store_const", dest="verbosity",

pyproject.toml

@@ -1,3 +1,32 @@
+[project]
+name = "patch-ng"
+version = "1.19.0"
+requires-python = ">=3.8"
+
+description = "Library to parse and apply unified diffs."
+readme = "README.md"
+license = "MIT"
+authors = [
+    { name = "Conan.io", email = "info@conan.io" }
+]
+
+# See https://pypi.python.org/pypi?%3Aaction=list_classifiers
+classifiers = [
+    'Development Status :: 5 - Production/Stable',
+    'Intended Audience :: Developers',
+    'Topic :: Software Development :: Build Tools',
+    'Programming Language :: Python :: 3',
+    'Programming Language :: Python :: 3.8'
+]
+
+keywords = ['patch', 'parse', 'diff', 'strip', 'diffstat']
+
+[project.urls]
+Repository = "https://github.com/conan-io/python-patch-ng/"
+
 [build-system]
 requires = ["setuptools", "wheel"]
 build-backend = "setuptools.build_meta"
+
+[tool.setuptools.package-data]
+patch_ng = ["LICENSE", "README.md"]