add file-contents-sorter hook

Author: mcflugen

.pre-commit-config.yaml

@@ -46,6 +46,13 @@ repos:
     - id: forbid-new-submodules
     - id: mixed-line-ending
     - id: trailing-whitespace
+    - id: file-contents-sorter
+      files: |
+        (?x)^(
+          .*requirements(-\w+)?.(in|txt)|
+          requirements/.*\.txt|
+          .gitignore
+        )
 
 - repo: https://github.com/pre-commit/mirrors-mypy
   rev: v1.8.0