ci: add license header pre-commit action

Related to packit/.github#9

Signed-off-by: Matej Focko <[email protected]>

Author: mfocko

.pre-commit-config.yaml

@@ -65,3 +65,13 @@ repos:
     hooks:
       - id: check-github-workflows
         args: ["--verbose"]
+  - repo: https://github.com/Lucas-C/pre-commit-hooks
+    rev: v1.5.5
+    hooks:
+      - id: insert-license
+        files: \.py$
+        args:
+          - --license-filepath
+          - LICENSE_HEADER.txt
+          - --comment-style
+          - "#"

LICENSE_HEADER.txt

@@ -0,0 +1,2 @@
+Copyright Contributors to the Packit project.
+SPDX-License-Identifier: MIT

tests/integration/gitlab/test_comments.py

@@ -1,3 +1,6 @@
+# Copyright Contributors to the Packit project.
+# SPDX-License-Identifier: MIT
+
 from datetime import datetime
 
 from requre.online_replacing import record_requests_for_all_methods