better error handling

Author: Martin Schaef

.github/workflows/codeguru-reviewer.yml

@@ -10,36 +10,45 @@ jobs:
   CodeGuruReviewerScan:
     runs-on: ubuntu-latest
     steps:
+    - name: Assume IAM Role
+      continue-on-error: true
+      uses: aws-actions/configure-aws-credentials@v1
+      id: iam-role
+      with:
+        role-to-assume: arn:aws:iam::048169001733:role/GuruGitHubCICDRole
+        aws-region: us-west-2
+
     - uses: actions/checkout@v2
+      if: steps.iam-role.outcome == 'success'
       with:
         fetch-depth: 0
     - name: Set up JDK 1.8
+      if: steps.iam-role.outcome == 'success'
       uses: actions/setup-java@v1
       with:
         java-version: 1.8
     - name: Build with Maven
+      if: steps.iam-role.outcome == 'success'
       run: mvn package -DskipTests
 
-    - name: Assume IAM Role
-      uses: aws-actions/configure-aws-credentials@v1
-      with:
-        role-to-assume: arn:aws:iam::048169001733:role/GuruGitHubCICDRole
-        aws-region: us-west-2
-
     - name: Run CodeGuru Reviewer
+      if: steps.iam-role.outcome == 'success'
+      id: codeguru
       uses: aws-actions/codeguru-reviewer@v1.1
       continue-on-error: false
       with:          
         s3_bucket: codeguru-reviewer-github-profiler-demo-048169001733-uw2
         build_path: ./target
 
     - name: Store SARIF file
+      if: steps.iam-role.outcome == 'success' && steps.codeguru.outcome == 'success'
       uses: actions/upload-artifact@v2
       with:
         name: SARIF_recommendations
         path: ./codeguru-results.sarif.json
 
     - name: Upload review result
+      if: steps.iam-role.outcome == 'success' && steps.codeguru.outcome == 'success'
       uses: github/codeql-action/upload-sarif@v1
       with:
         sarif_file: codeguru-results.sarif.json