Add more pre-commit hooks

Hooks added:

* check-merge-conflict - checks for files with merge conflict strings
* check-toml - attempts to load all toml files to verify syntax
* check-yaml - attempts to load all yaml files to verify syntax
* end-of-file-fixer - ensures files end in a newline and only a newline
* mixed-line-ending - replaces mixed line endings with LF
* trailing-whitespace - trims trailing whitespace
* python-check-blanket-noqa - enforces that noqa annotations always
  occur with specific codes

Changes made to comply with new hooks:

* Remove trailing whitespaces
* Remove some useless noqa annotations
* Specify errors for noqa annotations
* Add missing newlines at end of files

See: python-discord/organisation#138

1 files changed, 19 insertions, 4 deletions

diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 86035786..be57904e 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,10 +1,25 @@
 repos:
--   repo: local
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v2.5.0
     hooks:
-    -   id: flake8
+      - id: check-merge-conflict
+      - id: check-toml
+      - id: check-yaml
+      - id: end-of-file-fixer
+      - id: mixed-line-ending
+        args: [--fix=lf]
+      - id: trailing-whitespace
+        args: [--markdown-linebreak-ext=md]
+  - repo: https://github.com/pre-commit/pygrep-hooks
+    rev: v1.5.1
+    hooks:
+      - id: python-check-blanket-noqa
+  - repo: local
+    hooks:
+      - id: flake8
         name: Flake8
         description: This hook runs flake8 within our project's pipenv environment.
-        entry: pipenv run lint
+        entry: pipenv run flake8
         language: python
         types: [python]
-        require_serial: true
\ No newline at end of file
+        require_serial: true