ci: 📍 pin formatting dependencies (black and isort)

.github/workflows/black.yml → .github/workflows/formatting.yml

@@ -1,4 +1,4 @@
-name: "Black"
+name: "Formatting"
 
 on: [push]
 jobs:
@@ -8,6 +8,7 @@ jobs:
       matrix:
         python-version: ["3.12"]
         os: [ubuntu-latest]
+        tool: ["black", "isort"]
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
@@ -17,7 +18,7 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install black
-      - name: Black Code Formatter
+          pip install -r dev_requirements/requirements-formatting.txt
+      - name: ${{ matrix.tool }} Code Formatter
         run: |
-          black . --check
+          ${{ matrix.tool }} . --check

dev_requirements/requirements-formatting.in

@@ -0,0 +1,3 @@
+# specific requirements for the tox formatting environment
+black
+isort

dev_requirements/requirements-formatting.txt

@@ -0,0 +1,22 @@
+#
+# This file is autogenerated by pip-compile with Python 3.11
+# by the following command:
+#
+#    pip-compile requirements-formatting.in
+#
+black==24.1.1
+    # via -r requirements-formatting.in
+click==8.1.7
+    # via black
+colorama==0.4.6
+    # via click
+isort==5.13.2
+    # via -r requirements-formatting.in
+mypy-extensions==1.0.0
+    # via black
+packaging==23.2
+    # via black
+pathspec==0.12.1
+    # via black
+platformdirs==4.1.0
+    # via black

tox.ini

@@ -59,8 +59,7 @@ deps =
     {[testenv:tests]deps}
     {[testenv:linting]deps}
     {[testenv:coverage]deps}
-    black
-    isort
+    -r dev_requirements/requirements-formatting.txt
     pip-tools
     pre-commit
 commands =