Issue-Bot: Emit GitHub Action annotation when issues are affected

Author: staabm

.github/workflows/issue-bot.yml

@@ -160,7 +160,17 @@ jobs:
         if: github.event_name == 'pull_request'
         env:
           GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
-        run: ./console.php evaluate >> $GITHUB_STEP_SUMMARY
+        run: |
+          set +e
+          ./console.php evaluate >> $GITHUB_STEP_SUMMARY
+          exit_code="$?"
+
+          if [[ "$exit_code" == "2" ]]; then
+            echo "##[info]Issue bot detected open issues which are affected by this pull request."
+            exit 0
+          fi
+
+          exit $exit_code
 
       - name: "Evaluate results - push"
         working-directory: "issue-bot"

issue-bot/src/Console/EvaluateCommand.php

@@ -32,6 +32,9 @@
 
 class EvaluateCommand extends Command
 {
+	const EXIT_ERROR = 1;
+	const EXIT_AFFECTS_ISSUES = 2;
+	const EXIT_NO_AFFECTED_ISSUES = 0;
 
 	public function __construct(
 		private TabCreator $tabCreator,
@@ -133,7 +136,9 @@ protected function execute(InputInterface $input, OutputInterface $output): int
 			}
 		}
 
+		$exitCode = self::EXIT_AFFECTS_ISSUES;
 		if (count($toPost) === 0) {
+			$exitCode = self::EXIT_NO_AFFECTED_ISSUES;
 			$output->writeln(sprintf('No changes in results in %d code snippets from %d GitHub issues. :tada:', $totalCodeSnippets, count($issueCache->getIssues())));
 		}
 
@@ -163,7 +168,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
 		if ($postComments) {
 			if (count($toPost) > 20) {
 				$output->writeln('Too many comments to post, something is probably wrong.');
-				return 1;
+				return self::EXIT_ERROR;
 			}
 			foreach ($toPost as ['issue' => $issue, 'hash' => $hash, 'users' => $users, 'diff' => $diff, 'details' => $details]) {
 				$text = sprintf(
@@ -191,7 +196,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
 			}
 		}
 
-		return 0;
+		return $exitCode;
 	}
 
 	/**