pyproject: switch from Poetry to Hatchling

My experience with Poetry was poor, I've switched python packaging to
simpler Hatchling build system.

apkg/__init__.py

-# setuptools read this version through setup.py.
-# poetry updates this from git using poetry-dynamic-versioning / dunamai
-#   also works during `python -m build`.
+# hatchling uses this version when using python3 -m build
+# setuptools read this version through setup.py
 # scripts/make-archive.sh updates this using dunamai for `apkg make-archive`
-__version__ = "0.0.0"
+__version__ = '0.4.0'

distro/pkg/nix/default.nix

@@ -5,6 +5,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "apkg";
   version = "{{ version }}";
+  format = "pyproject";
 
   src = fetchFromGitLab {
     domain = "gitlab.nic.cz";
@@ -28,8 +29,7 @@ python3Packages.buildPythonApplication rec {
     toml             # config files
 
     # further deps?
-    poetry-core
-    poetry-dynamic-versioning
+    hatchling
   ];
 
   makeWrapperArgs = [ # deps for `srcpkg` operation for other distros; could be optional

pyproject.toml

-[tool.poetry]
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[project]
 name = "apkg"
-version = "0.0.0"
 description = "cross-distro upstream packaging automation tool"
-authors = ["Jakub Ružička <jakub.ruzicka@nic.cz>"]
 readme = "README.md"
-homepage = "https://gitlab.nic.cz/packaging/apkg"
-repository = "https://gitlab.nic.cz/packaging/apkg"
-documentation = "https://apkg.readthedocs.io/"
+requires-python = ">=3.7"
+license = {text = "MIT"}
 keywords = ["packaging", "devops", "CI", "cli"]
-packages = [
-    { include = "apkg" },
+authors = [
+  { name = "Jakub Ružička", email = "jakub.ruzicka@nic.cz" },
+]
+classifiers = [
+  "Development Status :: 4 - Beta",
+  "Programming Language :: Python",
+  "Programming Language :: Python :: 3.7",
+  "Programming Language :: Python :: 3.8",
+  "Programming Language :: Python :: 3.9",
+  "Programming Language :: Python :: 3.10",
+  "Programming Language :: Python :: 3.11",
+  "Programming Language :: Python :: Implementation :: CPython",
+  "Programming Language :: Python :: Implementation :: PyPy",
+]
+dependencies = [
+    "beautifulsoup4",
+    "blessed",
+    "click",
+    "distro",
+    "jinja2",
+    "packaging",
+    "requests",
+    "toml",
 ]
-exclude = ["docs"]
+dynamic = ["version"]
 
-[tool.poetry.urls]
+[project.urls]
+Documentation = "https://gitlab.nic.cz/packaging/apkg/-/blob/master/README.md"
 Issues = "https://gitlab.nic.cz/packaging/apkg/-/issues"
+Source = "https://gitlab.nic.cz/packaging/apkg"
 
-[tool.poetry.scripts]
-apkg = 'apkg.cli:main'
+[project.scripts]
+apkg = "apkg.cli:main"
 
-[tool.poetry.dependencies]
-python = "^3.7"
-beautifulsoup4 = "^4.11.2"
-blessings = "^1.7"
-click = "^8.1.3"
-distro = "^1.8.0"
-jinja2 = "^3.1.2"
-packaging = "^23.0"
-requests = "^2.28.2"
-toml = "^0.10.2"
+[tool.hatch.version]
+path = "apkg/__init__.py"
 
-[tool.poetry-dynamic-versioning]
-enable = true
-bump = true
-
-[tool.poetry-dynamic-versioning.substitution]
-files = ["apkg/__init__.py"]
-
-[build-system]
-requires = ["poetry-core>=1.0.0", "poetry-dynamic-versioning"]
-build-backend = "poetry_dynamic_versioning.backend"
+[tool.setuptools.packages.find]
+include = ["apkg"]

scripts/make-archive.sh

@@ -20,19 +20,17 @@ ARPATH=$OUTPATH/$ARCHIVE
 (git diff-index --quiet HEAD && git diff-index --cached --quiet HEAD) || \
     (echo "git index has uncommitted changes, can't commit version change :("; exit 1)
 
-# update version
-sed -i "s#0.0.0#$VERSION#" apkg/__init__.py
-sed -i "s#0.0.0#$VERSION#" pyproject.toml
-# TODO: more robust, possibly using toml editor
-#       lookg how poetry-dynamic-verisoning does it
-sed -i "s#enable = true#enable = false#" pyproject.toml
-git add apkg/__init__.py pyproject.toml
-if git commit -a -m "DROP: update __version__ = $VERSION"; then
-    # undo commit in the end
-    cleanup() {
-        git reset --hard HEAD^ >/dev/null
-    }
-    trap cleanup EXIT
+if [[ $VERSION = *"dev"* ]]; then
+    # update version
+    sed -i "s/\(__version__ *= *'\)[^']\+'/\1$VERSION'/" apkg/__init__.py 
+    git add apkg/__init__.py
+    if git commit -a -m "DROP: update __version__ = $VERSION"; then
+        # undo commit in the end
+        cleanup() {
+            git reset --hard HEAD^ >/dev/null
+        }
+        trap cleanup EXIT
+    fi
 fi
 
 mkdir -p "$OUTPATH"