add pre-commit config file

.pre-commit-config.yaml

@@ -0,0 +1,43 @@
+# See https://pre-commit.com for more information
+# See https://pre-commit.com/hooks.html for more hooks
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v3.3.0
+    hooks:
+      - id: check-added-large-files
+      - id: check-ast
+      - id: check-builtin-literals
+      - id: check-case-conflict
+      - id: check-docstring-first
+      - id: check-merge-conflict
+      - id: check-toml
+      - id: check-yaml
+      - id: debug-statements
+      - id: end-of-file-fixer
+      - id: forbid-new-submodules
+      - id: mixed-line-ending
+      - id: trailing-whitespace
+  - repo: https://github.com/pre-commit/pygrep-hooks
+    rev: v1.7.0
+    hooks:
+      - id: python-check-mock-methods
+      - id: python-no-eval
+      - id: python-no-log-warn
+      - id: python-use-type-annotations
+  - repo: https://github.com/Lucas-C/pre-commit-hooks
+    rev: v1.1.9
+    hooks:
+      - id: remove-crlf
+  - repo: https://github.com/psf/black
+    rev: 20.8b1
+    hooks:
+      - id: black
+  - repo: https://github.com/asottile/blacken-docs
+    rev: v1.8.0
+    hooks:
+      - id: blacken-docs
+        additional_dependencies: [ black==20.8b1 ]
+  - repo: https://github.com/asottile/setup-cfg-fmt
+    rev: v1.15.1
+    hooks:
+      - id: setup-cfg-fmt