Update pyproject.toml and MANIFEST.in.

Author: fabiocaccamo

MANIFEST.in

@@ -1,4 +1,5 @@
 include LICENSE.txt
 include README.md
-recursive-include fsutil *
+recursive-include src *
+recursive-include tests *
 recursive-exclude * *.pyc __pycache__ .DS_Store

pyproject.toml

@@ -85,13 +85,18 @@ exclude = '''
 '''
 
 [tool.mypy]
-files = ["fsutil"]
+files = ["src"]
 disable_error_code = "import-untyped"
 ignore_missing_imports = true
 install_types = true
 non_interactive = true
 strict = true
 
+[tool.pytest.ini_options]
+pythonpath = "src"
+addopts = "-v"
+testpaths = ["tests"]
+
 [tool.ruff]
 line-length = 88
 
@@ -102,8 +107,9 @@ select = ["B", "B9", "C", "E", "F", "I", "W"]
 [tool.ruff.lint.mccabe]
 max-complexity = 10
 
-[tool.setuptools.packages.find]
-include = ["fsutil*"]
+[tool.setuptools]
+package-dir = {"" = "src"}
+packages = ["fsutil"]
 
 [tool.setuptools.dynamic.version]
 attr = "fsutil.metadata.__version__"