[CheckCompatibility] Prevent interleaving of log output (#9280)

Signed-off-by: Peter Nied <petern@amazon.com>
(cherry picked from commit 23fd9a5)
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

.github/workflows/check-compatibility.yml

@@ -11,13 +11,15 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Run compatibility task
-        run: ./gradlew checkCompatibility | tee $HOME/gradlew-check.out
+        run: ./gradlew checkCompatibility -i | tee $HOME/gradlew-check.out
 
       - name: Get results
         run: |
-          echo 'Compatibility status:' > ${{ github.workspace }}/results.txt && echo '```' >> ${{ github.workspace }}/results.txt
-          grep -e 'Compatible components' -e 'Incompatible components' -e 'Components skipped' -A 2 -B 3 $HOME/gradlew-check.out >> "${{ github.workspace }}/results.txt"
-          echo '```' >> ${{ github.workspace }}/results.txt
+          echo '## Compatibility status:' > "${{ github.workspace }}/results.txt"
+          echo "Checks if related components are compatible with change $(git rev-parse --short HEAD)" >> "${{ github.workspace }}/results.txt"
+          echo "### Incompatible components" >> "${{ github.workspace }}/results.txt" && grep -e 'Incompatible component' $HOME/gradlew-check.out | sed -e 's/Incompatible component: \[\(.*\)\]/- \1/' >> "${{ github.workspace }}/results.txt"
+          echo "### Skipped components"      >> "${{ github.workspace }}/results.txt" && grep -e 'Skipped component'      $HOME/gradlew-check.out | sed -e 's/Skipped component: \[\(.*\)\]/- \1/'      >> "${{ github.workspace }}/results.txt"
+          echo "### Compatible components"   >> "${{ github.workspace }}/results.txt" && grep -e 'Compatible component'   $HOME/gradlew-check.out | sed -e 's/Compatible component: \[\(.*\)\]/- \1/'   >> "${{ github.workspace }}/results.txt"
 
       - name: GitHub App token
         id: github_app_token

buildSrc/src/main/groovy/org/opensearch/gradle/CheckCompatibilityTask.groovy

@@ -43,36 +43,44 @@ class CheckCompatibilityTask extends DefaultTask {
         repositoryUrls.parallelStream().forEach { repositoryUrl ->
             logger.lifecycle("Checking compatibility for: $repositoryUrl with ref: $ref")
             def tempDir = File.createTempDir()
+            def stdout = new ByteArrayOutputStream()
+            def errout = new ByteArrayOutputStream()
+            def skipped = false;
             try {
                 if (cloneAndCheckout(repositoryUrl, tempDir)) {
                     if (repositoryUrl.toString().endsWithAny('notifications', 'notifications.git')) {
                         tempDir = Paths.get(tempDir.getAbsolutePath(), 'notifications')
                     }
                     project.exec {
                         workingDir = tempDir
-                        def stdout = new ByteArrayOutputStream()
                         executable = (OperatingSystem.current().isWindows()) ? 'gradlew.bat' : './gradlew'
-                        args 'assemble'
+                        args ('assemble')
                         standardOutput stdout
+                        errorOutput errout
                     }
                     compatibleComponents.add(repositoryUrl)
                 } else {
-                    logger.lifecycle("Skipping compatibility check for $repositoryUrl")
+                    skipped = true
                 }
             } catch (ex) {
                 failedComponents.add(repositoryUrl)
                 logger.info("Gradle assemble failed for $repositoryUrl", ex)
             } finally {
+                if (skipped) {
+                    logger.lifecycle("Skipping compatibility check for $repositoryUrl")
+                } else {
+                    logger.lifecycle("Finished compatibility check for $repositoryUrl")
+                    logger.info("Standard output for $repositoryUrl build:\n\n" + stdout.toString())
+                    logger.error("Error output for $repositoryUrl build:\n\n" + errout.toString())
+                }
                 tempDir.deleteDir()
             }
         }
         if (!failedComponents.isEmpty()) {
             logger.lifecycle("Incompatible components: $failedComponents")
-            logger.info("Compatible components: $compatibleComponents")
         }
         if (!gitFailedComponents.isEmpty()) {
             logger.lifecycle("Components skipped due to git failures: $gitFailedComponents")
-            logger.info("Compatible components: $compatibleComponents")
         }
         if (!compatibleComponents.isEmpty()) {
             logger.lifecycle("Compatible components: $compatibleComponents")