fix #26: check db file existence before trying to read from it (#27)

app/db.go

@@ -91,6 +91,14 @@ func New(file string, bucket string, debug bool) (*DB, error) {
 	return &DB{Debug: debug, Dbfile: file, Bucket: bucket}, nil
 }
 
+func (db *DB) Exists() error {
+	if !common.FileExists(db.Dbfile) {
+		return fmt.Errorf("db file %s doesn't exist", db.Dbfile)
+	}
+
+	return nil
+}
+
 func (db *DB) Open() error {
 	slog.Debug("opening DB", "dbfile", db.Dbfile)
 

cfg/config.go

@@ -30,7 +30,7 @@ import (
 	"github.com/tlinden/yadu"
 )
 
-var Version string = "v0.3.1"
+var Version string = "v0.3.2"
 
 type BucketConfig struct {
 	Encrypt bool

cmd/crud.go

@@ -107,6 +107,10 @@ func Get(conf *cfg.Config) *cobra.Command {
 				attr.Key = args[0]
 			}
 
+			if err := conf.DB.Exists(); err != nil {
+				return err
+			}
+
 			entry, err := conf.DB.Get(&attr)
 			if err != nil {
 				return err
@@ -207,6 +211,10 @@ func List(conf *cfg.Config) *cobra.Command {
 				conf.Mode = "wide"
 			}
 
+			if err := conf.DB.Exists(); err != nil {
+				return err
+			}
+
 			entries, err := conf.DB.List(&attr, conf.Fulltext)
 			if err != nil {
 				return err