Remove docs tox env if sphinx not selected

Also add a test for this
Fixes #57

template/README.md.jinja

@@ -11,7 +11,7 @@ how it does it, and why people should use it.
 Source          | <{{repo_url}}>
 :---:           | :---:
 PyPI            | `pip install {{pypi_name}}`
-Documentation   | <{{docs_url}}>
+{% if sphinx %}Documentation   | <{{docs_url}}>{% endif %}
 Releases        | <{{repo_url}}/releases>
 
 This is where you should put some images or code snippets that illustrate
@@ -29,7 +29,8 @@ Or if it is a commandline tool then you might put some example commands here:
 ```
 python -m {{package_name}} --version
 ```
-
+{% if sphinx %}
 <!-- README only content. Anything below this line won't be included in index.md -->
 
 See {{docs_url}} for more detailed documentation.
+{% endif %}

template/pyproject.toml.jinja

@@ -61,7 +61,7 @@ reportMissingImports = false # Ignore missing stubs in imported modules
 [tool.pytest.ini_options]
 # Run pytest with all our checkers, and don't spam us with massive tracebacks on error
 addopts = """
-    --tb=native -vv --doctest-modules --doctest-glob="*.rst"
+    --tb=native -vv{% if sphinx %} --doctest-modules --doctest-glob="*.rst"{% endif %}
     """
 # https://iscinumpy.gitlab.io/post/bound-version-constraints/#watch-for-warnings
 filterwarnings = "error"
@@ -82,22 +82,22 @@ legacy_tox_ini = """
 [tox]
 skipsdist=True
 
-[testenv:{pre-commit,pyright,pytest,docs}]
+[testenv:{pre-commit,pyright,pytest{% if sphinx %},docs{% endif %}}]
 # Don't create a virtualenv for the command, requires tox-direct plugin
 direct = True
 passenv = *
 allowlist_externals =
     pytest
     pre-commit
     pyright
-    sphinx-build
+{% if sphinx %}    sphinx-build
     sphinx-autobuild
-commands =
+{% endif %}commands =
     pytest: pytest --cov={{ package_name }} --cov-report term --cov-report xml:cov.xml {posargs}
     pyright: pyright src tests {posargs}
     pre-commit: pre-commit run --all-files {posargs}
-    docs: sphinx-{posargs:build -EW --keep-going} -T docs build/html
-"""
+{% if sphinx %}    docs: sphinx-{posargs:build -EW --keep-going} -T docs build/html
+{% endif %}"""
 
 [tool.ruff]
 src = ["src", "tests"]

tests/test_example.py

@@ -36,17 +36,28 @@ def run_pipe(cmd: str, cwd=None):
     return output
 
 
-def test_template(tmp_path: Path):
-    project_path = tmp_path / "project"
-    venv_path = tmp_path / "venv"
-    copy_project(project_path)
+def make_venv(project_path: Path) -> callable:
+    venv_path = project_path / "venv"
+    run_pipe(f"python -m venv {venv_path}")
     run = functools.partial(run_pipe, cwd=str(project_path))
-    run(f"python -m venv {venv_path}")
-    run(f"{venv_path}/bin/python -m pip install -e .[dev]")
-    run(f"{venv_path}/bin/tox -p")
-    run(f"{venv_path}/bin/python -m pip install build twine")
-    run(f"{venv_path}/bin/python -m build")
-    run(f"{venv_path}/bin/python -m twine check --strict dist/*")
+    run(f"./venv/bin/pip install -e .[dev]")
+    return run
+
+
+def test_template(tmp_path: Path):
+    copy_project(tmp_path)
+    run = make_venv(tmp_path)
+    run(f"./venv/bin/tox -p")
+    run(f"./venv/bin/pip install build twine")
+    run(f"./venv/bin/python -m build")
+    run(f"./venv/bin/twine check --strict dist/*")
+
+
+def test_template_no_docs(tmp_path: Path):
+    copy_project(tmp_path, docs_type="README")
+    run = make_venv(tmp_path)
+    run(f"./venv/bin/tox -p")
+
 
 
 def test_bad_repo_name(tmp_path: Path):