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-22.04
     strategy:
       matrix:
-        python: [ '3.7', '3.8', '3.12' ]
+        python: [ '3.8', '3.12' ]
     steps:
       - uses: actions/checkout@v5
 

patch_ng.py

@@ -28,10 +28,8 @@
     ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     SOFTWARE.
 """
-__author__ = "Conan.io <[email protected]>"
-__version__ = "1.20.0-dev"
-__license__ = "MIT"
-__url__ = "https://github.com/conan-io/python-patch"
+from __future__ import print_function
+import importlib.metadata
 
 import codecs
 import copy
@@ -1389,7 +1387,7 @@ 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 = "[email protected]" }
+]
+
+# 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"]