Add pre-commit hooks

Author: mathbunnyru

.flake8

@@ -0,0 +1,4 @@
+[flake8]
+max-line-length = 88
+select = C,E,F,W,B,B950
+extend-ignore = E203, E501

.markdownlint.yaml

@@ -0,0 +1,8 @@
+# Default state for all rules
+default: true
+
+# MD013/line-length - Line length
+MD013:
+  # Number of characters
+  line_length: 200
+  tables: false

.pre-commit-config.yaml

@@ -0,0 +1,78 @@
+---
+# pre-commit is a tool to perform a predefined set of tasks manually and/or
+# automatically before git commits are made.
+#
+# Config reference: https://pre-commit.com/#pre-commit-configyaml---top-level
+#
+# Common tasks
+#
+# - Run on all files:   pre-commit run --all-files
+# - Register git hooks: pre-commit install --install-hooks
+#
+# See https://pre-commit.com for more information
+# See https://pre-commit.com/hooks.html for more hooks
+repos:
+  # Autoupdate: Python code
+  - repo: https://github.com/asottile/pyupgrade
+    rev: v2.34.0
+    hooks:
+      - id: pyupgrade
+        args: [--py39-plus]
+
+  # Automatically sort python imports
+  - repo: https://github.com/pycqa/isort
+    rev: 5.10.1
+    hooks:
+      - id: isort
+        args: [--profile, black]
+
+  # Autoformat: Python code
+  - repo: https://github.com/psf/black
+    rev: 22.6.0
+    hooks:
+      - id: black
+        args: [--target-version=py39]
+
+  # Check python code static typing
+  - repo: https://github.com/pre-commit/mirrors-mypy
+    rev: v0.961
+    hooks:
+      - id: mypy
+        args: [--config, ./mypy.ini]
+        additional_dependencies:
+          ["numpy", "pytest", "requests", "types-requests", "types-tabulate"]
+        # Unfortunately, `pre-commit` only runs on changed files
+        # This doesn't work well with `mypy --follow-imports error`
+        # See: https://github.com/pre-commit/mirrors-mypy/issues/34#issuecomment-1062160321
+        #
+        # To work around this we run `mypy` only in manual mode
+        # So it won't run as part of `git commit` command
+        # But it will still be run as part of `pre-commit` workflow and give expected results
+        stages: [manual]
+
+  # Autoformat: YAML, JSON, Markdown, etc.
+  - repo: https://github.com/pre-commit/mirrors-prettier
+    rev: v2.7.1
+    hooks:
+      - id: prettier
+
+  # `pre-commit sample-config` default hooks
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.3.0
+    hooks:
+      - id: check-added-large-files
+      - id: end-of-file-fixer
+      - id: trailing-whitespace
+
+  # Lint: Python
+  - repo: https://github.com/PyCQA/flake8
+    rev: 4.0.1
+    hooks:
+      - id: flake8
+
+  # Lint: Markdown
+  - repo: https://github.com/igorshubovych/markdownlint-cli
+    rev: v0.31.1
+    hooks:
+      - id: markdownlint
+        args: ["--fix"]

setup.py

@@ -1,35 +1,34 @@
-from setuptools import setup, Extension
 import sysconfig
 
 from Cython.Build import cythonize
+from setuptools import Extension, setup
 
+language = "c++"
+std = "c++17"
 
-language = 'c++'
-std = 'c++17'
-
-default_compile_args = sysconfig.get_config_var('CFLAGS').split()
+default_compile_args = sysconfig.get_config_var("CFLAGS").split()
 extra_compile_args = [f"-std={std}", "-Wall", "-Wextra", "-Werror", "-DNDEBUG", "-O3"]
 
-print(f'Default compile arguments: {default_compile_args}')
-print(f'Extra compile arguments: {extra_compile_args}')
+print(f"Default compile arguments: {default_compile_args}")
+print(f"Extra compile arguments: {extra_compile_args}")
 
 extension = Extension(
-    'cpp_python_extension',
-    sources=['sieve_python_wrapper.cpp', 'sieve.cpp'],
+    "cpp_python_extension",
+    sources=["sieve_python_wrapper.cpp", "sieve.cpp"],
     extra_compile_args=extra_compile_args,
-    language=language
+    language=language,
 )
 
 cython_extension = Extension(
-    'cython_sieve',
-    sources=['cython_sieve.pyx', 'sieve.cpp'],
+    "cython_sieve",
+    sources=["cython_sieve.pyx", "sieve.cpp"],
     extra_compile_args=extra_compile_args,
-    language='c++',
+    language="c++",
 )
 
 setup(
-    name='cpp_python_extension',
-    version='1.0',
-    description='This is Example module written in C++',
+    name="cpp_python_extension",
+    version="1.0",
+    description="This is Example module written in C++",
     ext_modules=cythonize([extension, cython_extension]),
 )

test_benchmark.py

@@ -1,12 +1,13 @@
-import pytest
 import cpp_python_extension
 import cython_sieve
+import pytest
 
 
 @pytest.mark.parametrize("input", [1000, 100000, 1000000])
 def test_cpp(benchmark, input):
     benchmark(cpp_python_extension.sieve_of_eratosthenes, input)
 
+
 @pytest.mark.parametrize("input", [1000, 100000, 1000000])
 def test_cyth(benchmark, input):
     benchmark(cython_sieve.sieve_of_eratosthenes, input)