Replace optional dependencies with dependency groups in template

Kept extra in setup.cfg

Author: sverhoeven

template/pyproject.toml.jinja

@@ -41,7 +41,7 @@ readme = {file = "README.md", content-type = "text/markdown"}
 requires-python = ">=3.10"
 version = "{{ version }}"
 
-[project.optional-dependencies]
+[dependency-groups]
 dev = [
     "build",  # build is not only used in publishing (below), but also in the template's test suite
     "bump-my-version",
@@ -111,7 +111,10 @@ skip_missing_interpreters = true
 {% if AddLocalTests -%}
 [testenv]
 commands = pytest
-extras = dev
+[tool.tox.env_run_base]
+dependency_groups = [
+  "dev",
+]
 {%- endif %}
 """
 

template/{% if AddDevDoc %}README.dev.md{% endif %}.jinja

@@ -18,9 +18,9 @@ python -m pip install --upgrade pip setuptools
 # install {{ package_name }} as an editable package
 python -m pip install --no-cache-dir --editable .
 # install development dependencies
-python -m pip install --no-cache-dir --editable .[dev]
+python -m pip install --no-cache-dir --editable . --group dev
 # install documentation dependencies only
-python -m pip install --no-cache-dir --editable .[docs]
+python -m pip install --no-cache-dir --editable . --group docs
 ```
 
 Afterwards check that the install directory is present in the `PATH` environment variable.

template/{% if HasWorkflows %}.github{% endif %}/workflows/{% if AddGitHubActionBuild %}build.yml{% endif %}.jinja

@@ -32,7 +32,7 @@ jobs:
       - name: Upgrade pip and install dependencies
         run: |
           python -m pip install --upgrade pip setuptools
-          python -m pip install .[dev,publishing]
+          python -m pip install . --group dev --group publishing
       - name: Run unit tests
         run: python -m pytest -v
       - name: Verify that we can build the package
@@ -58,7 +58,7 @@ jobs:
       - name: Upgrade pip and install dependencies
         run: |
           python -m pip install --upgrade pip setuptools
-          python -m pip install .[dev,publishing]
+          python -m pip install . --group dev
       - name: Check style against standards using ruff
         run: |
           ruff check .
@@ -78,7 +78,7 @@ jobs:
       - name: Upgrade pip and install dependencies
         run: |
           python -m pip install --upgrade pip setuptools
-          python -m pip install .[dev]
+          python -m pip install . --group dev
       - name: Run {{ SelectTypeChecker }}
         run: |
           {{ SelectTypeChecker }}

template/{% if HasWorkflows %}.github{% endif %}/workflows/{% if AddGitHubActionDocumentation %}documentation.yml{% endif %}

@@ -28,7 +28,7 @@ jobs:
       - name: Upgrade pip and install dependencies
         run: |
           python -m pip install --upgrade pip setuptools
-          python -m pip install .[dev,publishing]
+          python -m pip install . --group dev --group docs
       - name: Install pandoc using apt
         run: sudo apt install pandoc
       - name: Build documentation

template/{% if HasWorkflows %}.github{% endif %}/workflows/{% if AddSonarCloud %}sonarcloud.yml{% endif %}

@@ -28,7 +28,7 @@ jobs:
           which python
           python --version
       - name: Install dependencies
-        run: python -m pip install .[dev]
+        run: python -m pip install . --group dev
       - name: Run unit tests with coverage
         run: python -m pytest --cov --cov-report term --cov-report xml --junitxml=xunit-result.xml tests/
       - name: Correct coverage paths

tests/test_project.py

@@ -64,7 +64,7 @@ def baked_with_development_dependencies(copie_session, project_env_bin_dir, copi
     bin_dir = project_env_bin_dir
     latest_pip_output = run([f'{bin_dir}python', '-m', 'pip', 'install', '--upgrade', 'pip', 'setuptools'], project_dir)
     assert latest_pip_output.returncode == 0
-    pip_output = run([f'{bin_dir}python', '-m', 'pip', 'install', '--editable', '.[dev]'], project_dir)
+    pip_output = run([f'{bin_dir}python', '-m', 'pip', 'install', '--editable', '.', '--group', 'dev'], project_dir)
     assert pip_output.returncode == 0
     return project_dir