CD: Auto send rebuild requests to COPR (#1)

* CD: add mock triggering code

* CD: fix webhook URL

* CD: set job timeout

* CD: only run trigger step when spec files are modified

* CD: actually send requests with curl

* CD: use actual webhook URL

* CD: improve curl call

* CD: print build URL

.github/workflows/rebuild-changed.yaml

@@ -12,8 +12,28 @@ jobs:
   trigger-rebuild-for-modified:
     name: Trigger rebuild for modified .spec files
     runs-on: ubuntu-latest
+    timeout-minutes: 3
     steps:
+      - name: Install ripgrep
+        run: sudo apt-get install -y ripgrep
+
       - name: Checkout repository
         uses: actions/checkout@v4
 
-      # TODO
+      - name: Get modified .spec files
+        id: spec-modified
+        uses: tj-actions/changed-files@v39
+        with:
+          files: specs/*.spec
+
+      - name: Send rebuild request to COPR
+        if: ${{ steps.spec-modified.outputs.modified_files_count }} != 0
+        env:
+          URL: ${{ secrets.COPR_WEBHOOK_URL }}
+        run: |
+          for FILE in ${{ steps.spec-modified.outputs.modified_files }}; do
+            PKG=$(rg '^Name:\s*([\w\d_\-]+)\s*$' --replace '$1' $FILE)
+            echo "Package $PKG changed (Spec file: $FILE); sending rebuild request"
+            BUILD_ID=$(curl -Ssf -X POST "$URL/$PKG")
+            echo "Build submitted: https://copr.fedorainfracloud.org/coprs/build/$BUILD_ID"
+          done