Lint: Enable isort (I) rules

- Add new targets for checking and applying `ruff check` and `ruff format`.

- Add targets `fix` and `check` for convenience.

- Also use the new `check` target in CI.

.github/workflows/ci.yml

@@ -38,7 +38,7 @@ jobs:
           apt-get install -y git make python3 python3-poetry --no-install-recommends
           poetry install --only lint,test
       - name: Run linters to enforce code style
-        run: poetry run make lint
+        run: poetry run make check
       - name: Check that the QA script is up to date with the docs
         run: "./dev_scripts/qa.py --check-refs"
 

Makefile

@@ -1,6 +1,19 @@
 LARGE_TEST_REPO_DIR:=tests/test_docs_large
 GIT_DESC=$$(git describe)
 JUNIT_FLAGS := --capture=sys -o junit_logging=all
+
+lint-ruff: ## check the python source code with various linter rules through ruff
+	ruff check
+
+lint-ruff-apply: ## apply all fixes made by ruff to the source code 
+	ruff check --fix
+
+format-ruff: ## Check the formatting of the python source code with ruff
+	ruff format --check
+
+format-ruff-apply: ## apply all the formatting suggestions from ruff
+	ruff format
+
 MYPY_ARGS := --ignore-missing-imports \
 			 --disallow-incomplete-defs \
 			 --disallow-untyped-defs \
@@ -9,17 +22,19 @@ MYPY_ARGS := --ignore-missing-imports \
 			 --warn-unused-ignores \
 			 --exclude $(LARGE_TEST_REPO_DIR)/*.py
 
-.PHONY: lint
-lint: ## Check the code for linting, formatting, and typing issues with ruff and mypy
-	ruff check
-	ruff format --check
+mypy-host:
 	mypy $(MYPY_ARGS) dangerzone
+
+mypy-tests:
 	mypy $(MYPY_ARGS) tests
 
+mypy: mypy-host mypy-tests ## check type hints with mypy
+
+.PHONY: check
+check: lint-ruff format-ruff mypy ## check the code with ruff and mypy
+
 .PHONY: fix
-fix: ## apply all the suggestions from ruff
-	ruff check --fix
-	ruff format 
+fix: lint-ruff-apply format-ruff-apply ## apply all the suggestions from ruff
 
 .PHONY: test
 test: