Modernize pre-commit: replace black with ruff, use isort with plone profile

- Replace black with ruff for linting and formatting
- Keep isort for import sorting with plone profile and alphabetical rules
- Configure ruff with line-length=120, target Python 3.10+
- Add ruff configuration with appropriate rule selections and ignores
- Ignore F841 (unused variables) in tests directory
- Fix compatibility issues:
  - Fix undefined s() function in svn.py (use stderr.decode())
  - Fix undefined b() function in test_mercurial.py (use b":" literal)
- Update pyproject.toml with ruff and isort configurations
- Update Makefile (mxmake auto-updated qa.black -> qa.ruff)
- Apply ruff-format and isort to all files

This modernizes the tooling stack while keeping the project's code style
consistent. Ruff provides faster linting/formatting and better Python 3.10+
support.

Author: jensens

.pre-commit-config.yaml

@@ -1,11 +1,20 @@
 ---
 repos:
-  - repo: https://github.com/psf/black.git
-    rev: 24.2.0
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    rev: v0.8.4
     hooks:
-      - id: black
-        language_version: python3
-        exclude: ^(tests\/hooks-abort-render\/hooks|docs\/HelloCookieCutter1)
+      # Run the linter
+      - id: ruff
+        args: [--fix]
+      # Run the formatter
+      - id: ruff-format
+
+  - repo: https://github.com/pycqa/isort
+    rev: 5.13.2
+    hooks:
+      - id: isort
+        args: [--profile, plone, --force-alphabetical-sort, --force-single-line, --lines-after-imports, "2"]
+        additional_dependencies: [setuptools]
 
   - repo: https://github.com/pre-commit/mirrors-mypy
     rev: 'v1.9.0'  # Use the sha / tag you want to point at

Makefile

@@ -6,9 +6,9 @@
 #: core.mxenv
 #: core.mxfiles
 #: core.packages
-#: qa.black
 #: qa.isort
 #: qa.mypy
+#: qa.ruff
 #: qa.test
 #
 # SETTINGS (ALL CHANGES MADE BELOW SETTINGS WILL BE LOST)
@@ -94,17 +94,17 @@ MXDEV?=mxdev
 # Default: mxmake
 MXMAKE?=mxmake
 
-## qa.isort
+## qa.ruff
 
-# Source folder to scan for Python files to run isort on.
+# Source folder to scan for Python files to run ruff on.
 # Default: src
-ISORT_SRC?=src
+RUFF_SRC?=src
 
-## qa.black
+## qa.isort
 
-# Source folder to scan for Python files to run black on.
+# Source folder to scan for Python files to run isort on.
 # Default: src
-BLACK_SRC?=src
+ISORT_SRC?=src
 
 ## core.mxfiles
 
@@ -263,6 +263,41 @@ INSTALL_TARGETS+=mxenv
 DIRTY_TARGETS+=mxenv-dirty
 CLEAN_TARGETS+=mxenv-clean
 
+##############################################################################
+# ruff
+##############################################################################
+
+RUFF_TARGET:=$(SENTINEL_FOLDER)/ruff.sentinel
+$(RUFF_TARGET): $(MXENV_TARGET)
+	@echo "Install Ruff"
+	@$(PYTHON_PACKAGE_COMMAND) install ruff
+	@touch $(RUFF_TARGET)
+
+.PHONY: ruff-check
+ruff-check: $(RUFF_TARGET)
+	@echo "Run ruff check"
+	@ruff check $(RUFF_SRC)
+
+.PHONY: ruff-format
+ruff-format: $(RUFF_TARGET)
+	@echo "Run ruff format"
+	@ruff format $(RUFF_SRC)
+
+.PHONY: ruff-dirty
+ruff-dirty:
+	@rm -f $(RUFF_TARGET)
+
+.PHONY: ruff-clean
+ruff-clean: ruff-dirty
+	@test -e $(MXENV_PYTHON) && $(MXENV_PYTHON) -m pip uninstall -y ruff || :
+	@rm -rf .ruff_cache
+
+INSTALL_TARGETS+=$(RUFF_TARGET)
+CHECK_TARGETS+=ruff-check
+FORMAT_TARGETS+=ruff-format
+DIRTY_TARGETS+=ruff-dirty
+CLEAN_TARGETS+=ruff-clean
+
 ##############################################################################
 # isort
 ##############################################################################
@@ -297,40 +332,6 @@ FORMAT_TARGETS+=isort-format
 DIRTY_TARGETS+=isort-dirty
 CLEAN_TARGETS+=isort-clean
 
-##############################################################################
-# black
-##############################################################################
-
-BLACK_TARGET:=$(SENTINEL_FOLDER)/black.sentinel
-$(BLACK_TARGET): $(MXENV_TARGET)
-	@echo "Install Black"
-	@$(PYTHON_PACKAGE_COMMAND) install black
-	@touch $(BLACK_TARGET)
-
-.PHONY: black-check
-black-check: $(BLACK_TARGET)
-	@echo "Run black checks"
-	@black --check $(BLACK_SRC)
-
-.PHONY: black-format
-black-format: $(BLACK_TARGET)
-	@echo "Run black format"
-	@black $(BLACK_SRC)
-
-.PHONY: black-dirty
-black-dirty:
-	@rm -f $(BLACK_TARGET)
-
-.PHONY: black-clean
-black-clean: black-dirty
-	@test -e $(MXENV_PYTHON) && $(MXENV_PYTHON) -m pip uninstall -y black || :
-
-INSTALL_TARGETS+=$(BLACK_TARGET)
-CHECK_TARGETS+=black-check
-FORMAT_TARGETS+=black-format
-DIRTY_TARGETS+=black-dirty
-CLEAN_TARGETS+=black-clean
-
 ##############################################################################
 # mxfiles
 ##############################################################################