go(run.go): add a way to load local breach data

error.go

@@ -8,4 +8,6 @@ import "errors"
 var (
 	errDBNotConfigured   = errors.New("Database connection string or database type were not set")
 	errUnsupportedDBType = errors.New("DBTYPE can only be one of postgres or sqlite3")
+	errDBConnFailed      = errors.New("Failed to open a connection to the database")
+	errImportFailed      = errors.New("Import of local breach data failed")
 )

run.go

@@ -25,6 +25,7 @@ import (
 	"git.dotya.ml/mirre-mt/pcmt/config"
 	"git.dotya.ml/mirre-mt/pcmt/ent"
 	moddb "git.dotya.ml/mirre-mt/pcmt/modules/db"
+	"git.dotya.ml/mirre-mt/pcmt/modules/localbreach"
 	"git.dotya.ml/mirre-mt/pcmt/slogging"
 )
 
@@ -160,10 +161,15 @@ func run() error { //nolint:gocognit
 	db, err := ent.Open(setting.DbType(), setting.DbConnstring())
 	if err != nil {
 		if doingImport {
-			log.Error("import not possible")
+			log.Error("Import was not possible", "error", err)
+			fmt.Fprintf(os.Stdout, "\033[31m✗\033[0m Import was not possible due to an error: %q\n", err)
+
+			return errImportFailed
 		}
 
-		return fmt.Errorf("failed to open a connection to database: %v", err)
+		log.Errorf("Error while connecting to DB: %q", err)
+
+		return errDBConnFailed
 	}
 	defer db.Close()
 
@@ -179,6 +185,19 @@ func run() error { //nolint:gocognit
 
 	setting.SetDbIsSetUp(true)
 
+	// don't load the app, return early.
+	if doingImport {
+		lb, err := localbreach.Load(*importFlag)
+		if err != nil {
+			return err
+		}
+
+		log.Infof("Import succeeded: %+v", lb)
+		fmt.Fprint(os.Stdout, "\033[32m🗸\033[0m Import succeeded \n")
+
+		return nil
+	}
+
 	a := &app.App{}
 
 	if err = a.Init(setting, slogger, db); err != nil {