Added pre-commit configuration and configuration for the tools.

.pre-commit-config.yaml

@@ -0,0 +1,51 @@
+repos:
+  - repo: https://github.com/timothycrosley/isort
+    rev: 5.10.1
+    hooks:
+      - id: isort
+        additional_dependencies: [toml]
+  - repo: https://github.com/python/black
+    rev: 21.11b1
+    hooks:
+      - id: black
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.0.1
+    hooks:
+      - id: check-added-large-files
+      - id: check-case-conflict
+      - id: check-executables-have-shebangs
+      - id: check-json
+      - id: check-merge-conflict
+      - id: check-shebang-scripts-are-executable
+      - id: check-symlinks
+      - id: check-toml
+      - id: check-yaml
+      - id: debug-statements
+      - id: end-of-file-fixer
+        exclude: "^tests/resources/"
+      - id: fix-byte-order-marker
+      - id: fix-encoding-pragma
+        args: ["--remove"]
+      - id: requirements-txt-fixer
+  - repo: https://gitlab.com/pycqa/flake8
+    rev: 3.9.2
+    hooks:
+      - id: flake8
+  - repo: https://github.com/pycqa/pydocstyle
+    rev: 6.1.1
+    hooks:
+      - id: pydocstyle
+        exclude: test.*
+        additional_dependencies: [toml]
+  - repo: https://github.com/terrencepreilly/darglint
+    rev: v1.8.1
+    hooks:
+      - id: darglint
+        args:
+          - -v 2
+          - "--message-template={path}:{line} in `{obj}`:\n        {msg_id}: {msg}"
+          - --strictness=short
+  - repo: https://github.com/econchick/interrogate
+    rev: 1.5.0  # or master if you're bold
+    hooks:
+      - id: interrogate

README.md

@@ -1,6 +1,7 @@
 # Django Categories
 
 [![Jazzband](https://jazzband.co/static/img/badge.svg)](https://jazzband.co/)
+[![codecov](https://codecov.io/gh/jazzband/django-categories/branch/master/graph/badge.svg?token=rW8mpdZqWQ)](https://codecov.io/gh/jazzband/django-categories)
 
 Django Categories grew out of our need to provide a basic hierarchical taxonomy management system that multiple applications could use independently or in concert.
 

pyproject.toml

@@ -0,0 +1,82 @@
+[build-system]
+requires = [
+  "setuptools >= 40.9.0",
+  "wheel",
+]
+build-backend = "setuptools.build_meta"
+
+[tool.coverage.run]
+branch = true
+omit = ["**/test_*.py"]
+
+[tool.coverage.report]
+omit = [
+    "*site-packages*",
+    "*tests*",
+    "*.tox*",
+]
+show_missing = true
+exclude_lines = [
+    "raise NotImplementedError",
+    "pragma: no-coverage",
+]
+
+[tool.interrogate]
+ignore-init-method = true
+ignore-init-module = false
+ignore-magic = true
+ignore-semiprivate = false
+ignore-private = false
+ignore-property-decorators = false
+ignore-module = false
+ignore-nested-functions = true
+ignore-nested-classes = true
+ignore-setters = false
+fail-under = 95
+exclude = ["setup.py", "docs", "build", "test"]
+ignore-regex = ["^get$", "^mock_.*", ".*BaseClass.*"]
+verbose = 0
+quiet = false
+whitelist-regex = []
+color = true
+
+[tool.isort]
+py_version = "38"
+force_grid_wrap = 0
+use_parentheses = true
+line_length = 88
+known_typing = ["typing", "types", "typing_extensions", "mypy", "mypy_extensions"]
+sections = ["FUTURE", "TYPING", "STDLIB", "THIRDPARTY", "FIRSTPARTY", "LOCALFOLDER"]
+include_trailing_comma = true
+profile = "black"
+multi_line_output = 3
+indent = 4
+color_output = true
+
+[tool.pydocstyle]
+convention = "google"
+add-ignore = ["D107", "D200", "D212"]
+match = "(?!test_).*\\.py"
+
+[tool.black]
+line-length = 119
+target-version = ['py38', 'py39']
+include = '\.pyi?$'
+exclude = '''
+/(
+    \.eggs
+  | \.git
+  | \.hg
+  | \.mypy_cache
+  | \.tox
+  | \.venv
+  | _build
+  | buck-out
+  | build
+  | dist
+  # The following are specific to Black, you probably don't want those.
+  | blib2to3
+  | tests/data
+  | profiling
+)/
+'''

requirements.txt

@@ -1,2 +1,2 @@
-django-mptt==0.11.0
-unicode-slugify==0.1.3
+django-mptt
+unicode-slugify

setup.cfg

@@ -1,2 +1,38 @@
+[metadata]
+name = django-categories
+description = A way to handle one or more hierarchical category trees in django.
+long_description = file:README.md
+long_description_content_type = "text/markdown"
+author = Corey Oordt
+author_email = coreyoordt@gmail.com
+url = http://github.com/jazzband/django-categories
+classifiers =
+    Framework :: Django
+
+[options]
+zip_safe=False
+include_package_data=True
+
+[options.packages.find]
+exclude =
+    example*
+    docs
+    build
+include = categories
+
+[flake8]
+ignore = D203,W503,E501
+exclude =
+    .git
+    .tox
+    docs
+    build
+    dist
+    doc_src
+max-line-length = 119
+
+[darglint]
+ignore=DAR402
+
 [bdist_wheel]
 universal = 1

setup.py

@@ -1,31 +1,53 @@
-from setuptools import setup, find_packages
+"""The setup script."""
+
+from pathlib import Path
+
+from setuptools import setup
+
 import categories
-import os
 
-try:
-    long_description = open('README.md').read()
-except IOError:
-    long_description = ''
 
-try:
-    reqs = open(os.path.join(os.path.dirname(__file__), 'requirements.txt')).read()
-except (IOError, OSError):
-    reqs = ''
+def parse_reqs(filepath: str) -> list:
+    """
+    Parse a file path containing requirements and return a list of requirements.
+
+    Will properly follow ``-r`` and ``--requirements`` links like ``pip``. This
+    means nested requirements will be returned as one list.
+
+    Other ``pip``-specific lines are excluded.
+
+    Args:
+        filepath: The path to the requirements file
+
+    Returns:
+        All the requirements as a list.
+    """
+    path = Path(filepath)
+    reqstr = path.read_text()
+    reqs = []
+    for line in reqstr.splitlines():
+        line = line.strip()
+        if line == "":
+            continue
+        elif not line or line.startswith("#"):
+            # comments are lines that start with # only
+            continue
+        elif line.startswith("-r") or line.startswith("--requirement"):
+            _, new_filename = line.split()
+            new_file_path = path.parent / new_filename
+            reqs.extend(parse_reqs(new_file_path))
+        elif line.startswith("-f") or line.startswith("-i") or line.startswith("--"):
+            continue
+        elif line.startswith("-Z") or line.startswith("--always-unzip"):
+            continue
+        else:
+            reqs.append(line)
+    return reqs
+
+
+requirements = parse_reqs("requirements.txt")
 
 setup(
-    name='django-categories',
     version=categories.get_version(),
-    description='A way to handle one or more hierarchical category trees in django.',
-    long_description=long_description,
-    long_description_content_type="text/markdown",
-    author='Corey Oordt',
-    author_email='coreyoordt@gmail.com',
-    include_package_data=True,
-    url='http://github.com/jazzband/django-categories',
-    packages=find_packages(exclude=['example*', ]),
-    classifiers=[
-        'Framework :: Django',
-    ],
-    install_requires=reqs,
-    dependency_links=[]
+    install_requires=requirements,
 )