From 98863fbff5f1ab7de9322519305ed628821b9e0f Mon Sep 17 00:00:00 2001
From: Romain Malmain <romain.malmain@pm.me>
Date: Mon, 22 Apr 2024 19:14:23 +0200
Subject: [PATCH] Only run QEMU tests if there is a QEMU-related change.
 (#2090)

* Only run QEMU tests if there is a change.

* fmt.
---
 .github/workflows/build_and_test.yml | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/.github/workflows/build_and_test.yml b/.github/workflows/build_and_test.yml
index 9f3d9da46e..e0cba65abf 100644
--- a/.github/workflows/build_and_test.yml
+++ b/.github/workflows/build_and_test.yml
@@ -361,7 +361,24 @@ jobs:
         shell: bash
         run: RUN_ON_CI=1 LLVM_CONFIG=llvm-config ./scripts/test_fuzzer.sh ${{ matrix.fuzzer }}
 
+  changes:
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: read
+    outputs:
+      qemu: ${{ steps.filter.outputs.qemu }}
+    steps:
+      - uses: dorny/paths-filter@v3
+        id: filter
+        with:
+          filters: |
+            qemu:
+              - 'libafl_qemu/**'
+              - 'fuzzers/*qemu*/**'
+
   fuzzers-qemu:
+    needs: changes
+    if: ${{ needs.changes.outputs.qemu == 'true' }}
     strategy:
       matrix:
         os: [ubuntu-latest]