Prepare a checker to check for paths changes

Author: LecrisUT

packit_service/worker/checker/copr.py

@@ -138,3 +138,12 @@ def _pre_check(self) -> bool:
                 )
                 return False
         return True
+
+class AreFilesChanged(Checker):
+    """
+    Check if any files under the current package's `paths` field is changed.
+    If not, then just skip the current copr build job.
+    """
+    def pre_check(self) -> bool:
+        # TODO: Implement the logic to check if relevant files are changed
+        return True

packit_service/worker/handlers/copr.py

@@ -40,6 +40,7 @@
 )
 from packit_service.worker.checker.abstract import Checker
 from packit_service.worker.checker.copr import (
+    AreFilesChanged,
     AreOwnerAndProjectMatchingJob,
     BuildNotAlreadyStarted,
     CanActorRunTestsJob,
@@ -114,6 +115,7 @@ def get_checkers() -> tuple[type[Checker], ...]:
             IsJobConfigTriggerMatching,
             IsGitForgeProjectAndEventOk,
             CanActorRunTestsJob,
+            AreFilesChanged,
         )
 
     def run(self) -> TaskResults: