Migrate to pyproject.toml, remove setup.cfg, pyscaffold (#79)

Dockerfile

@@ -2,7 +2,7 @@ FROM python:3.9-bookworm AS build
 
 COPY . /src
 WORKDIR /src/python
-RUN python3 setup.py bdist_wheel
+RUN pip install --no-cache-dir build==1.2.2 && python3 -m build
 
 FROM python:3.9-slim-bookworm
 ARG TZ

python/pyproject.toml

@@ -0,0 +1,75 @@
+[build-system]
+requires = ["setuptools>=72", "wheel", "setuptools_scm[toml]>=8"]
+
+[project]
+name = "etos_api"
+dynamic = ["version"]
+description = "ETOS API"
+authors = [{name = "Tobias Persson", email = "[email protected]"}]
+license = { text  = "Apache License, Version 2.0" }
+readme = "README.rst"
+classifiers = [
+    "Development Status :: 4 - Beta",
+    "Programming Language :: Python :: 3",
+    "License :: OSI Approved :: Apache Software License"
+]
+dependencies = [
+    "etos_lib==4.3.1",
+    "etcd3gw~=2.3",
+    "uvicorn~=0.22",
+    "fastapi~=0.109.1",
+    "aiohttp[speedups]~=3.8",
+    "gql[requests]~=3.4",
+    "httpx~=0.24",
+    "kubernetes~=26.1",
+    "sse-starlette~=1.6",
+    "opentelemetry-api~=1.21",
+    "opentelemetry-exporter-otlp~=1.21",
+    "opentelemetry-instrumentation-fastapi==0.46b0",
+    "opentelemetry-sdk~=1.21",
+    "jsontas~=1.4",
+    "packageurl-python~=0.11",
+    "cryptography>=42.0.4,<43.0.0",
+    "setuptools_scm~=8.0"
+]
+
+[options]
+zip_safe = false
+include_package_data = true
+python_requires = ">=3.4"
+
+[options.packages.find]
+where = "src"
+exclude = ["tests"]
+
+[project.urls]
+Documentation = "https://etos.readthedocs.io/"
+Homepage = "https://github.com/eiffel-community/etos-api"
+Repository = "https://github.com/eiffel-community/etos-api"
+
+[project.scripts]
+
+[project.optional-dependencies]
+testing = ["pytest", "pytest-cov"]
+
+[test]
+extras = true
+
+[tool.build_sphinx]
+source_dir = "docs"
+build_dir = "build/sphinx"
+
+[tool.devpi.upload]
+no-vcs = 1
+formats = "bdist_wheel"
+
+[tool.flake8]
+exclude = [".tox", "build", "dist", ".eggs", "docs/conf.py"]
+
+[tool.pytest.ini_options]
+addopts = "--cov etos_api --cov-report term-missing --verbose"
+norecursedirs = ["dist", "build", ".tox"]
+testpaths = ["tests"]
+
+[tool.setuptools_scm]
+root = ".."

python/setup.py

@@ -1,23 +1,42 @@
 # -*- coding: utf-8 -*-
-"""Setup file for etos_api.
+"""Setup file for etos-api."""
+from setuptools import setup
+from setuptools_scm.version import get_local_dirty_tag
 
-Use setup.cfg to configure your project.
 
-This file was generated with PyScaffold 3.2.3.
-PyScaffold helps you to put up the scaffold of your new Python project.
-Learn more under: https://pyscaffold.org/
-"""
-import sys
+def version_scheme(version) -> str:
+    """Get version component for the current commit.
 
-from pkg_resources import VersionConflict, require
-from setuptools import setup
+    Used by setuptools_scm.
+    """
+    if version.tag and version.distance == 0:
+        # If the current commit has a tag, use the tag as version, regardless of branch.
+        # Note: Github CI creates releases from detached HEAD, not from a particular branch.
+        return f"{version.tag}"
+    elif version.branch == "main" and version.tag and version.distance > 0:
+        # For untagged commits on the release branch always add a distance like ".post3"
+        return f"{version.tag}.post{version.distance}"
+    else:
+        # For non-release branches, mark the version as dev and distance:
+        return f"{version.tag}.dev{version.distance}"
+
+
+def local_scheme(version) -> str:
+    """Get local version component for the current Git commit.
+
+    Used by setuptools_scm.
+    """
+    # If current version is dirty, always add dirty suffix, regardless of branch.
+    dirty_tag = get_local_dirty_tag(version) if version.dirty else ""
+    if dirty_tag:
+        return f"{dirty_tag}.{version.node}"
 
-try:
-    require("setuptools>=38.3")
-except VersionConflict:
-    print("Error: version of setuptools is too old (<38.3)!")
-    sys.exit(1)
+    if version.distance == 0:
+        # If the current commit has a tag, do not add a local component, regardless of branch.
+        return ""
+    # For all other cases, always add the git reference (like "g7839952")
+    return f"+{version.node}"
 
 
 if __name__ == "__main__":
-    setup(use_pyscaffold=True)
+    setup(use_scm_version={"local_scheme": local_scheme, "version_scheme": version_scheme})