Code modularization and refactoring. (#141)

* Bump `pre-commit` hooks.

* Catch unused imports.

* Bump test requirements.

* Split code into modules.

* Fix tests.

* Configure `pytest`.

* Refactor permissions tests.

* Refactor io tests.

* Refactor checks tests.

* Refactor converters tests.

* Refactor archives tests.

* Refactor paths tests.

* Refactor info tests.

* Add metadata tests.

* Add core tests.

* Remove old tests file.

* Rename core to operations.

* Add args tests.

* Add deps tests.

* Don't redefine built-ins.

Author: fabiocaccamo

.github/workflows/test-package.yml

@@ -43,9 +43,7 @@ jobs:
 
     - name: Run tests
       run: |
-        coverage run --append --source=fsutil -m unittest
-        coverage report --show-missing
-        coverage xml -o ./coverage.xml
+        pytest tests --cov=fsutil --cov-report=term-missing --cov-fail-under=90
 
     - name: Upload coverage to Codecov
       uses: codecov/codecov-action@v4

.pre-commit-config.yaml

@@ -3,7 +3,7 @@
 repos:
 
   - repo: https://github.com/asottile/pyupgrade
-    rev: v3.18.0
+    rev: v3.19.1
     hooks:
       - id: pyupgrade
         args: ["--py310-plus"]
@@ -14,14 +14,14 @@ repos:
       - id: fix-future-annotations
 
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.6.9
+    rev: v0.9.4
     hooks:
       - id: ruff
         args: [--fix, --exit-non-zero-on-fix]
       - id: ruff-format
 
   - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v1.12.0
+    rev: v1.15.0
     hooks:
       - id: mypy
         args: [--ignore-missing-imports, --strict]