feat: recover from panic

cmd/joj3/main.go

@@ -146,8 +146,18 @@ func mainImpl() (err error) {
 }
 
 func main() {
-	if err := mainImpl(); err != nil {
-		slog.Error("main exit", "error", err)
-		os.Exit(1)
+	var err error
+	exitCode := 0
+	defer func() {
+		if r := recover(); r != nil {
+			slog.Error("panic recovered", "panic", r)
+			exitCode = 2
 		}
+		if err != nil {
+			slog.Error("main exit", "error", err)
+			exitCode = 1
+		}
+		os.Exit(exitCode)
+	}()
+	err = mainImpl()
 }

cmd/joj3/stage.go

@@ -22,7 +22,10 @@ func generateStages(confStages []conf.ConfStage, groups []string) (
 ) {
 	stages := []stage.Stage{}
 	existNames := map[string]bool{}
-	for _, s := range confStages {
+	for i, s := range confStages {
+		if s.Name == "" {
+			s.Name = fmt.Sprintf("stage-%d", i)
+		}
 		if s.Group != "" {
 			var ok bool
 			for _, group := range groups {

internal/stage/run.go

@@ -16,6 +16,29 @@ func Run(stages []Stage) (
 	var tmpParserResults []ParserResult
 	slog.Info("stage run start")
 	for _, stage := range stages {
+		func() {
+			defer func() {
+				if r := recover(); r != nil {
+					slog.Error(
+						"stage panic recovered",
+						"stageName", stage.Name,
+						"panic", r,
+					)
+					stageResults = append(stageResults, StageResult{
+						Name: stage.Name,
+						Results: []ParserResult{
+							{
+								Score: 0,
+								Comment: "JOJ3 internal error. " +
+									"Please contact the administrator.\n",
+							},
+						},
+						ForceQuit: true,
+					})
+					forceQuitStageName = stage.Name
+					err = fmt.Errorf("panic in stage %s: %v", stage.Name, r)
+				}
+			}()
 			slog.Info("stage start", "name", stage.Name)
 			slog.Info(
 				"executor run start",
@@ -36,7 +59,7 @@ func Run(stages []Stage) (
 					"name", stage.Executor.Name,
 				)
 				err = fmt.Errorf("executor not found: %s", stage.Executor.Name)
-			return stageResults, forceQuitStageName, err
+				return
 			}
 			executorResults, err = executor.Run(stage.Executor.Cmds)
 			if err != nil {
@@ -46,7 +69,7 @@ func Run(stages []Stage) (
 					"name", stage.Executor.Name,
 					"error", err,
 				)
-			return stageResults, forceQuitStageName, err
+				return
 			}
 			for i, executorResult := range executorResults {
 				slog.Debug(
@@ -92,7 +115,7 @@ func Run(stages []Stage) (
 						"name", stageParser.Name,
 					)
 					err = fmt.Errorf("parser not found: %s", stageParser.Name)
-				return stageResults, forceQuitStageName, err
+					return
 				}
 				var parserForceQuit bool
 				tmpParserResults, parserForceQuit, err = parser.Run(
@@ -150,6 +173,7 @@ func Run(stages []Stage) (
 				ForceQuit: forceQuitStageName != "",
 			})
 			slog.Debug("stage done", "name", stage.Name, "stageDetail", stageDetail)
+		}()
 		if forceQuitStageName != "" {
 			break
 		}