.github: output size diff output to summary

.github/workflows/test_size.yml

@@ -301,8 +301,26 @@ jobs:
           Tools/scripts/extract_features.py "$EF_BASE_BRANCH_BINARY" -nm "${BIN_PREFIX}nm" >features-base_branch.txt
           Tools/scripts/extract_features.py "$EF_PR_BRANCH_BINARY" -nm "${BIN_PREFIX}nm" >features-pr.txt
           diff -u features-base_branch.txt features-pr.txt || true
+          diff_output=$(diff -u features-base_branch.txt features-pr.txt || true)
+          if [ -n "$diff_output" ]; then
+            echo "### Features Diff Output" >> $GITHUB_STEP_SUMMARY
+            echo '```diff' >> $GITHUB_STEP_SUMMARY
+            echo "$diff_output" >> $GITHUB_STEP_SUMMARY
+            echo '```' >> $GITHUB_STEP_SUMMARY
+          else
+            echo "No differences found." >> $GITHUB_STEP_SUMMARY
+          fi
 
       - name: Checksum compare with ${{ github.event.pull_request.base.ref }}
         shell: bash
         run: |
           diff -r $GITHUB_WORKSPACE/base_branch_bin_no_versions $GITHUB_WORKSPACE/pr_bin_no_versions --exclude=*.elf --exclude=*.apj || true
+          diff_output=$(diff -r $GITHUB_WORKSPACE/base_branch_bin_no_versions $GITHUB_WORKSPACE/pr_bin_no_versions --exclude=*.elf --exclude=*.apj || true || true)
+          if [ -n "$diff_output" ]; then
+            echo "### Checksum Diff Output" >> $GITHUB_STEP_SUMMARY
+            echo '```diff' >> $GITHUB_STEP_SUMMARY
+            echo "$diff_output" >> $GITHUB_STEP_SUMMARY
+            echo '```' >> $GITHUB_STEP_SUMMARY
+          else
+            echo "No differences found." >> $GITHUB_STEP_SUMMARY
+          fi