Adding never indexing severity to only index if explicitly asked. fixes #613

src/backend/model/database/GalleryManager.ts

@@ -40,16 +40,26 @@ export class GalleryManager  {
     const directoryPath = GalleryManager.parseRelativeDirePath(
       relativeDirectoryName
     );
+
     const connection = await SQLConnection.getConnection();
-    const stat = fs.statSync(
-      path.join(ProjectPath.ImageFolder, relativeDirectoryName)
-    );
-    const lastModified = DiskMangerWorker.calcLastModified(stat);
-
-
     const dir = await this.getDirIdAndTime(connection, directoryPath.name, directoryPath.parent);
 
+
     if (dir && dir.lastScanned != null) {
+      // Return as soon as possible without touching the original data source (hdd)
+      // See https://github.com/bpatrik/pigallery2/issues/613
+      if (
+        Config.Indexing.reIndexingSensitivity ===
+        ReIndexingSensitivity.never
+      ) {
+        return null;
+      }
+
+      const stat = fs.statSync(
+        path.join(ProjectPath.ImageFolder, relativeDirectoryName)
+      );
+      const lastModified = DiskMangerWorker.calcLastModified(stat);
+
       // If it seems that the content did not change, do not work on it
       if (
         knownLastModified &&

src/common/config/private/PrivateConfig.ts

@@ -64,9 +64,12 @@ export enum SQLLogLevel {
 }
 
 export enum ReIndexingSensitivity {
-  low = 1,
-  medium = 2,
-  high = 3,
+  // Order is important. It also used to do relative comparison.
+  // Keep space between items for future
+  never = 10,
+  low = 20,
+  medium = 30,
+  high = 40,
 }
 
 export enum FFmpegPresets {
@@ -443,7 +446,7 @@ export class ServerIndexingConfig {
         name: $localize`Folder reindexing sensitivity`,
         priority: ConfigPriority.advanced
       },
-    description: $localize`Set the reindexing sensitivity. High value check the folders for change more often.`
+    description: $localize`Set the reindexing sensitivity. High value check the folders for change more often.  Setting to never only indexes if never indexed or explicit running the Indexing Job.`
   })
   reIndexingSensitivity: ReIndexingSensitivity = ReIndexingSensitivity.low;
   @ConfigProperty({

src/frontend/app/ui/EnumTranslations.ts

@@ -39,6 +39,7 @@ EnumTranslations[MapProviders[MapProviders.OpenStreetMap]] = $localize`OpenStree
 EnumTranslations[MapProviders[MapProviders.Mapbox]] = $localize`Mapbox`;
 
 
+EnumTranslations[ReIndexingSensitivity[ReIndexingSensitivity.never]] = $localize`never`;
 EnumTranslations[ReIndexingSensitivity[ReIndexingSensitivity.low]] = $localize`low`;
 EnumTranslations[ReIndexingSensitivity[ReIndexingSensitivity.high]] = $localize`high`;
 EnumTranslations[ReIndexingSensitivity[ReIndexingSensitivity.medium]] = $localize`medium`;