Add typos tool to pre-commit (#674)

This tool corrects common misspellings in all kinds of text files.

Author: adamchainz

.pre-commit-config.yaml

@@ -16,6 +16,18 @@ repos:
   - id: check-toml
   - id: end-of-file-fixer
   - id: trailing-whitespace
+- repo: https://github.com/crate-ci/typos
+  rev: 6cb49915af2e93e61f5f0d0a82216e28ad5c7c18  # frozen: v1
+  hooks:
+  - id: typos
+    exclude: |
+      (?x)^(
+        .*\.min\.css
+        |.*\.min\.js
+        |.*\.css\.map
+        |.*\.js\.map
+        |.*\.svg
+      )$
 - repo: https://github.com/tox-dev/pyproject-fmt
   rev: 57b6ff7bf72affdd12c7f3fd6de761ba18a33b3a  # frozen: v2.5.1
   hooks:

.typos.toml

@@ -0,0 +1,10 @@
+# Configuration file for 'typos' tool
+# https://github.com/crate-ci/typos
+
+[default]
+extend-ignore-re = [
+  # Single line ignore comments
+  "(?Rm)^.*(#|//)\\s*typos: ignore$",
+  # Multi-line ignore comments
+  "(?s)(#|//)\\s*typos: off.*?\\n\\s*(#|//)\\s*typos: on"
+]

CHANGELOG.rst

@@ -203,7 +203,7 @@ Changelog
 1.2.2 (2017-11-03)
 ------------------
 
-* Fix collection to not sometimes crash when encoutering pytest ``Item``\s
+* Fix collection to not sometimes crash when encountering pytest ``Item``\s
   without a module.
 
 1.2.1 (2017-06-17)