lib/config: Add some info to the folder marker missing (ref #5207) (#6270)

lib/config/folderconfiguration.go

@@ -23,7 +23,7 @@ import (
 var (
 	ErrPathNotDirectory = errors.New("folder path not a directory")
 	ErrPathMissing      = errors.New("folder path missing")
-	ErrMarkerMissing    = errors.New("folder marker missing")
+	ErrMarkerMissing    = errors.New("folder marker missing (this indicates potential data loss, search docs/forum to get information about how to proceed)")
 )
 
 const DefaultMarkerName = ".stfolder"

lib/model/model_test.go

@@ -1610,7 +1610,7 @@ func TestROScanRecovery(t *testing.T) {
 
 	testOs.Mkdir(fcfg.Path, 0700)
 
-	waitForState(t, sub, "default", "folder marker missing")
+	waitForState(t, sub, "default", config.ErrMarkerMissing.Error())
 
 	fd := testOs.Create(filepath.Join(fcfg.Path, config.DefaultMarkerName))
 	fd.Close()
@@ -1619,7 +1619,7 @@ func TestROScanRecovery(t *testing.T) {
 
 	testOs.Remove(filepath.Join(fcfg.Path, config.DefaultMarkerName))
 
-	waitForState(t, sub, "default", "folder marker missing")
+	waitForState(t, sub, "default", config.ErrMarkerMissing.Error())
 
 	testOs.Remove(fcfg.Path)
 
@@ -1663,7 +1663,7 @@ func TestRWScanRecovery(t *testing.T) {
 
 	testOs.Mkdir(fcfg.Path, 0700)
 
-	waitForState(t, sub, "default", "folder marker missing")
+	waitForState(t, sub, "default", config.ErrMarkerMissing.Error())
 
 	fd := testOs.Create(filepath.Join(fcfg.Path, config.DefaultMarkerName))
 	fd.Close()
@@ -1672,7 +1672,7 @@ func TestRWScanRecovery(t *testing.T) {
 
 	testOs.Remove(filepath.Join(fcfg.Path, config.DefaultMarkerName))
 
-	waitForState(t, sub, "default", "folder marker missing")
+	waitForState(t, sub, "default", config.ErrMarkerMissing.Error())
 
 	testOs.Remove(fcfg.Path)