Update package metadata

.gitignore

@@ -58,13 +58,13 @@ target/
 
 tools/emoji.md
 
-site/*
+site/
 
-tools/tags/*
+tools/tags/
 
 tmp*
 
-node_modules/*
+node_modules/
 
 manifest*.json
 *.dic

hatch_build.py

@@ -0,0 +1,52 @@
+"""Dynamically define some metadata."""
+import os
+
+from hatchling.metadata.plugin.interface import MetadataHookInterface
+
+
+def get_version_dev_status(root):
+    """Get version_info without importing the entire module."""
+
+    import importlib.util
+
+    path = os.path.join(root, "pymdownx", "__meta__.py")
+    spec = importlib.util.spec_from_file_location("__meta__", path)
+    module = importlib.util.module_from_spec(spec)
+    spec.loader.exec_module(module)
+    return module.__version_info__._get_dev_status()
+
+
+def get_requirements(root):
+    """Load list of dependencies."""
+
+    install_requires = []
+    with open(os.path.join(root, "requirements", "project.txt")) as f:
+        for line in f:
+            if not line.startswith("#"):
+                install_requires.append(line.strip())
+    return install_requires
+
+
+class CustomMetadataHook(MetadataHookInterface):
+    """Our metadata hook."""
+
+    def update(self, metadata):
+        """See https://ofek.dev/hatch/latest/plugins/metadata-hook/ for more information."""
+
+        metadata["dependencies"] = get_requirements(self.root)
+        metadata["classifiers"] = [
+            f"Development Status :: {get_version_dev_status(self.root)}",
+            "Environment :: Console",
+            "Intended Audience :: Developers",
+            "License :: OSI Approved :: MIT License",
+            "Operating System :: OS Independent",
+            "Programming Language :: Python :: 3",
+            "Programming Language :: Python :: 3.7",
+            "Programming Language :: Python :: 3.8",
+            "Programming Language :: Python :: 3.9",
+            "Programming Language :: Python :: 3.10",
+            "Topic :: Internet :: WWW/HTTP :: Dynamic Content",
+            "Topic :: Software Development :: Libraries :: Python Modules",
+            "Topic :: Text Processing :: Filters",
+            "Topic :: Text Processing :: Markup :: HTML",
+        ]

pyproject.toml

@@ -1,7 +1,52 @@
 [build-system]
 requires = [
-    "setuptools>=42",
-    "wheel"
+    "hatchling>=0.21.0",
 ]
+build-backend = "hatchling.build"
 
-build-backend = "setuptools.build_meta"
+[project]
+name = "pymdown-extensions"
+description = "Extension pack for Python Markdown."
+readme = "README.md"
+license = "MIT"
+requires-python = ">=3.7"
+authors = [
+    { name = "Isaac Muse", email = "Isaac.Muse@gmail.com" },
+]
+keywords = [
+    "extensions",
+    "markdown",
+]
+dynamic = [
+    "classifiers",
+    "dependencies",
+    "version",
+]
+
+[project.urls]
+Homepage = "https://github.com/facelessuser/pymdown-extensions"
+
+[tool.hatch.version]
+source = "code"
+path = "pymdownx/__meta__.py"
+
+[tool.hatch.build.targets.sdist]
+include = [
+    "/docs/src/markdown",
+    "/docs/theme",
+    "/requirements/*.txt",
+    "/pymdownx",
+    "/tests",
+    "/.coveragerc",
+    "/.dictionary",
+    "/mkdocs.yml",
+    "/run_tests.py",
+    "/tox.ini",
+]
+
+[tool.hatch.build.targets.wheel]
+include = [
+    "/pymdownx",
+]
+
+[tool.hatch.metadata.hooks.custom]

tox.ini

@@ -1,4 +1,5 @@
 [tox]
+isolated_build = true
 envlist =
     {py37,py38,py39,py310}, lint, documents