feat: linting workflow

.flake8

@@ -0,0 +1,10 @@
+[flake8]
+max-line-length = 119
+select = 
+    F541, # f-string without any placeholders
+    F841, # local variable 'x' is assigned to but never used
+    F401, # 'x' imported but unused
+    E741, # ambiguous variable name 'l'
+    F821, # undefined name 'x'
+    E266, # too many leading '#' for block comment
+

.github/workflows/code-linting.yml

@@ -19,17 +19,90 @@ on:
   workflow_call:
 
 jobs:
-  lint-check:
-    name: Lint check
+  linting:
+    name: "Code Linting"
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout repository
+      - name: Checkout
         uses: actions/checkout@v4
+
+      - name: Get changed files
+        id: changed-files
+        uses: step-security/[email protected]
         with:
-          submodules: 'recursive'
+          files: |
+            **/*.py
+
+      - name: Run PyLint
+        id: pylint
+        env:
+          CHANGED_FILES: ${{ steps.changed-files.outputs.all_changed_files }}
+          SKIP_DOCS: ${{ contains(github.event.pull_request.labels.*.name, 'skip-docs') }}
+          SKIP_LINTING: ${{ contains(github.event.pull_request.labels.*.name, 'skip-linting') }}
+        run: |
+          if [[ -z "$CHANGED_FILES" ]]; then
+            echo "Nothing to lint."
+            echo "exit-code=0" | tee -a "$GITHUB_OUTPUT"
+            exit 0
+          fi
+
+          if [[ $SKIP_DOCS == true ]]; then
+            ADDITIONAL_PYLINT_ARGS="--disable=C0115,C0116"
+          else
+            ADDITIONAL_PYLINT_ARGS=""
+          fi
+
+          if [[ $SKIP_LINTING == true ]]; then
+            ADDITIONAL_PYLINT_ARGS="--exit-zero"
+          fi
+
+          pip install pylint
+          set +e
+          pylint $ADDITIONAL_PYLINT_ARGS --output pylintrc.txt --rcfile .pylintrc ${CHANGED_FILES[@]}
+          echo "exit-code=$?" | tee -a "$GITHUB_OUTPUT"
 
-      - name: Check lint
+      - name: Run flake8
+        id: flake8
+        env:
+          CHANGED_FILES: ${{ steps.changed-files.outputs.all_changed_files }}
+          SKIP_LINTING: ${{ contains(github.event.pull_request.labels.*.name, 'skip-linting') }}
         run: |
-          pip install pre-commit==3.6.0
-          pre-commit install
-          pre-commit run --all-files --show-diff-on-failure --color=always
+          if [[ -z "$CHANGED_FILES" ]]; then
+            echo "Nothing to lint."
+            echo "exit-code=0" | tee -a "$GITHUB_OUTPUT"
+            exit 0
+          fi
+
+          if [[ $SKIP_LINTING == true ]]; then
+            ADDITIONAL_FLAKE8_ARGS="--exit-zero"
+          else
+            ADDITIONAL_FLAKE8_ARGS=""
+          fi
+
+          pip install flake8
+          set +e
+          flake8 $ADDITIONAL_FLAKE8_ARGS --output flake8.txt --config .flake8 ${CHANGED_FILES[@]}
+          echo "exit-code=$?" | tee -a "$GITHUB_OUTPUT"
+
+      - name: Summary
+        env:
+          PYLINT: ${{ steps.pylint.outputs.exit-code == 0 }}
+          FLAKE8: ${{ steps.flake8.outputs.exit-code == 0 }}
+        run: |
+          if [[ "$PYLINT" != "true" ]]; then
+            echo "Pylint output:" | tee -a $GITHUB_STEP_SUMMARY
+            echo '```' | tee -a $GITHUB_STEP_SUMMARY
+            cat pylintrc.txt | tee -a $GITHUB_STEP_SUMMARY
+            echo '```' | tee -a $GITHUB_STEP_SUMMARY
+          fi
+
+          if [[ "$FLAKE8" != "true" ]]; then
+            echo "Flake8 output:" | tee -a $GITHUB_STEP_SUMMARY
+            echo '```' | tee -a $GITHUB_STEP_SUMMARY
+            cat flake8.txt | tee -a $GITHUB_STEP_SUMMARY
+            echo '```' | tee -a $GITHUB_STEP_SUMMARY
+          fi
+
+          if [[ "$PYLINT" != "true" ||  "$FLAKE8" != "true" ]]; then
+            exit 1
+          fi

.pylintrc

@@ -0,0 +1,6 @@
+[MAIN]
+ignore-paths=tests
+max-line-length=119
+ignore-patterns=.*\.ipynb$
+recursive=y
+