Add pre-commit hooks for reuse and basic checkers.

Author: Flameeyes

.github/workflows/githubci.yml

@@ -10,7 +10,7 @@ jobs:
   build:
 
     runs-on: ubuntu-latest
-    
+
     steps:
     - uses: actions/checkout@v1
     - uses: actions/setup-python@v1

.pre-commit-config.yaml

@@ -0,0 +1,15 @@
+# SPDX-FileCopyrightText: 2020 Diego Elio Pettenò
+#
+# SPDX-License-Identifier: Unlicense
+
+repos:
+-   repo: https://github.com/fsfe/reuse-tool
+    rev: latest
+    hooks:
+    - id: reuse
+-   repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v2.3.0
+    hooks:
+    -   id: check-yaml
+    -   id: end-of-file-fixer
+    -   id: trailing-whitespace