MNT: Use none to explicitly avoid dependencies, add labels

Author: effigies

.github/workflows/stable.yml

@@ -113,20 +113,20 @@ jobs:
           # Basic dependencies only
           - os: ubuntu-latest
             python-version: 3.8
-            dependencies: ''
+            dependencies: 'none'
           # Absolute minimum dependencies
           - os: ubuntu-latest
             python-version: 3.8
             dependencies: 'min'
           - os: ubuntu-latest
             python-version: 3.12
-            dependencies: ''
+            dependencies: 'none'
           - os: windows-latest
             python-version: 3.12
-            dependencies: ''
+            dependencies: 'none'
           - os: macos-latest
             python-version: 3.12
-            dependencies: ''
+            dependencies: 'none'
         exclude:
           - os: ubuntu-latest
             architecture: x86

tox.ini

@@ -2,9 +2,9 @@
 requires =
   tox>=4
 envlist =
-  py38{,-min,-full}
+  py38-{none,min,full}
   py3{9,10}-full
-  py3{11,12}{,-pre,-full}
+  py3{11,12}-{none,pre,full}
   doctest
   style
   typecheck
@@ -20,6 +20,7 @@ python =
 
 [gh-actions:env]
 DEPENDS =
+  none: none
   pre: pre
   full: full
   min: min
@@ -32,6 +33,7 @@ CHECK =
 
 [testenv]
 description = Typical pytest invocation with coverage
+labels = test
 install_command =
   python -I -m pip install \
     --only-binary numpy,scipy,h5py
@@ -88,13 +90,15 @@ commands =
 
 [testenv:install]
 description = "Install and verify imports succeed"
+labels = test
 deps =
 install_command = python -I -m pip install {opts} {packages}
 commands =
   python -c "import nibabel; print(nibabel.__version__)"
 
 [testenv:docs]
 description = Typical pytest invocation with coverage
+labels = docs
 allowlist_externals = make
 deps =
   sphinx
@@ -107,6 +111,7 @@ commands =
 
 [testenv:doctest]
 description = Typical pytest invocation with coverage
+labels = docs
 allowlist_externals = make
 depends = docs
 deps =
@@ -121,6 +126,7 @@ commands =
 
 [testenv:style]
 description = Check our style guide
+labels = check
 deps =
   flake8
   blue
@@ -133,6 +139,7 @@ commands =
 
 [testenv:style-fix]
 description = Auto-apply style guide to the extent possible
+labels = pre-release
 deps =
   blue
   isort[colors]
@@ -143,6 +150,7 @@ commands =
 
 [testenv:typecheck]
 description = Check type consistency
+labels = check
 deps =
   mypy
   pytest
@@ -157,6 +165,9 @@ commands =
   mypy nibabel
 
 [testenv:build{,-strict}]
+labels =
+  check
+  pre-release
 deps =
   build
   twine
@@ -169,6 +180,7 @@ commands =
 
 [testenv:publish]
 depends = build
+labels = release
 deps =
   twine
 skip_install = true
@@ -177,12 +189,7 @@ commands =
 
 [testenv:zenodo]
 deps = gitpython
+labels = pre-release
 skip_install = true
 commands =
   python tools/prep_zenodo.py
-
-[testenv:pre-release]
-depends =
-  zenodo
-  style-fix
-  build