Use diffscope and upload stage 1 binaries

Author: biabbas

.github/workflows/repro_check.yml

@@ -61,6 +61,11 @@ jobs:
           rm -rf build
           cd ..
 
+      - name: Install diffoscope
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y diffoscope
+
       - name: Compare builds using git diff
         run: |
           # Go back to the root directory
@@ -73,4 +78,27 @@ jobs:
           fi
 
           # Perform a diff between the two builds
-          diff -r buildA/stage1 buildA_extended/stage1 || echo "Differences found!"
+          diffoscope buildA/stage1 buildA_extended/stage1 > diffoscope_output.txt || echo "Differences found!"
+
+      - name: Upload diffoscope output
+        uses: actions/upload-artifact@v4
+        with:
+          name: diffoscope-report
+          path: diffoscope_output.txt
+
+      - name: Archive buildA and buildA_extended
+        run: |
+          tar -czf buildA.tar.gz buildA
+          tar -czf buildA_extended.tar.gz buildA_extended
+
+      - name: Upload buildA artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: buildA
+          path: buildA.tar.gz
+
+      - name: Upload buildA_extended artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: buildA_extended
+          path: buildA_extended.tar.gz