feat: migrate build system to hatchling

pyproject.toml

@@ -1,10 +1,10 @@
 [build-system]
-requires = ["setuptools>=61", "pbr>=2.0"]
-build-backend = "setuptools.build_meta"
+requires = ["hatchling", "hatch-vcs", "hatch-requirements-txt"]
+build-backend = "hatchling.build"
 
 [project]
 name = "seive_cache"
-dynamic = ["version"]
+dynamic = ["version", "dependencies"]
 description = "A simple implementation of SEIVE caching algorithm"
 readme = "README.md"
 requires-python = ">=3.10"
@@ -19,23 +19,21 @@ classifiers = [
   "Programming Language :: Python :: 3 :: Only",
   "Programming Language :: Python :: 3.10",
 ]
-dependencies = [
-  "stevedore>=5.1.0",
-  "dogpile.cache>=1.3.0",
-  "iso8601>=2.1.0",
-]
 
 [project.optional-dependencies]
 redis = ["redis"]
 
 [project.entry-points."dogpile.cache"]
 "sieve_cache.memory" = "sieve_cache.backends.memory:InMemoryDriver"
 
-[tool.setuptools.dynamic]
-version = { attr = "sieve_cache.version.version_string" }
+[tool.hatch.build.targets.wheel]
+packages = ["sieve_cache"]
+
+[tool.hatch.version]
+source = "vcs"
 
-[tool.setuptools.packages.find]
-include = ["sieve_cache*"]
+[tool.hatch.metadata.hooks.requirements_txt]
+files = ["requirements.txt"]
 
 [tool.ruff]
 line-length = 79

requirements.txt

@@ -10,7 +10,6 @@
 #  License for the specific language governing permissions and limitations
 #  under the License.
 
-pbr>=6.0.0
 stevedore>=5.1.0
 dogpile.cache>=1.3.0
 iso8601>=2.1.0

sieve_cache/version.py

@@ -10,7 +10,21 @@
 #  License for the specific language governing permissions and limitations
 #  under the License.
 
-import pbr.version
+from importlib import metadata
 
-version_info = pbr.version.VersionInfo("seive_cache")
+
+class _VersionInfo:
+    def __init__(self, package_name):
+        self.package_name = package_name
+
+    def version_string(self):
+        for package_name in (self.package_name, "sieve_cache"):
+            try:
+                return metadata.version(package_name)
+            except metadata.PackageNotFoundError:
+                continue
+        return "0.0.0"
+
+
+version_info = _VersionInfo("seive_cache")
 version_string = version_info.version_string

tox.ini

@@ -52,3 +52,22 @@ commands =
     coverage html -d cover
     coverage xml -o cover/coverage.xml
     coverage report --fail-under=70 --skip-covered
+
+[flake8]
+# [H104]: Empty file with only comments
+# [W504]: Line break after binary operator
+# [W503]: Line break before binary operator
+# [H306]: Alphabetically order your imports by the full module path
+# [H405]: Multi line docstring summary not separated with an empty line
+# [I202]: Additional newline in a group of imports.
+ignore = H104,W504,H306,H405,W503,I202
+show-source = true
+builtins = _
+exclude = .venv,.git,.tox,dist,doc,*lib/python*,*egg,build
+import-order-style = pep8
+# [H106]: Don't put vim configuration in source files
+# [H203]: Use assertIs(Not)None to check for None
+# [H204]: Use assert(Not)Equal to check for equality
+# [H205]: Use assert(Greater|Less)(Equal) for comparison
+# [H904]: Delay string interpolations at logging calls
+enable-extensions = H106,H203,H204,H205,H904