Ignore empty folders and hidden files/folders in the library

Hide ".gameyfin" folder on DOS systems (UNIX already worked)

backend/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <artifactId>gameyfin</artifactId>
         <groupId>de.grimsi</groupId>
-        <version>1.2.1</version>
+        <version>1.2.2-SNAPSHOT</version>
     </parent>
 
     <artifactId>gameyfin-backend</artifactId>
@@ -17,7 +17,7 @@
     <properties>
         <java.version>18</java.version>
 
-        <springdoc-openapi-ui.version>1.6.9</springdoc-openapi-ui.version>
+        <springdoc-openapi-ui.version>1.6.11</springdoc-openapi-ui.version>
         <resilience4j.version>1.7.1</resilience4j.version>
         <commons-io.version>2.11.0</commons-io.version>
         <commons-compress.version>1.21</commons-compress.version>

backend/src/main/java/de/grimsi/gameyfin/config/FilesystemConfig.java

@@ -2,16 +2,25 @@ package de.grimsi.gameyfin.config;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.context.event.ApplicationReadyEvent;
 import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.boot.jdbc.DataSourceBuilder;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Primary;
+import org.springframework.context.event.EventListener;
 import org.springframework.core.env.*;
 import org.springframework.util.PropertyPlaceholderHelper;
 import org.springframework.util.StringUtils;
 
+import javax.annotation.PostConstruct;
 import javax.sql.DataSource;
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.LinkOption;
+import java.nio.file.Path;
+import java.nio.file.Paths;
 import java.util.Arrays;
 import java.util.Properties;
 import java.util.stream.StreamSupport;
@@ -19,6 +28,8 @@ import java.util.stream.StreamSupport;
 @Configuration
 public class FilesystemConfig {
 
+    private static final String INTERNAL_FOLDER_NAME = ".gameyfin";
+
     @Value("#{'${gameyfin.sources}'.split(',')[0]}")
     private String firstLibraryPath;
 
@@ -31,16 +42,29 @@ public class FilesystemConfig {
     @Autowired
     Environment env;
 
+    /**
+     * This will make sure that the internal folder (".gameyfin") is marked as hidden on DOS/Windows-based systems.
+     * On UNIX-based systems files and folders starting with a dot are hidden
+     */
+    @EventListener(ApplicationReadyEvent.class)
+    public void hideInternalFolderOnDOS() throws IOException {
+        Path internalFolder = Paths.get("%s/%s".formatted(firstLibraryPath, INTERNAL_FOLDER_NAME));
+
+        if(!Files.exists(internalFolder) || !Files.isDirectory(internalFolder)) return;
+
+        Files.setAttribute(internalFolder, "dos:hidden", Boolean.TRUE, LinkOption.NOFOLLOW_LINKS);
+    }
+
     @Autowired
     public void setConfigurableEnvironment(ConfigurableEnvironment env) {
         Properties props = new Properties();
 
         if(!StringUtils.hasText(dbPath)) {
-            props.setProperty("gameyfin.db", "%s/.gameyfin/db".formatted(firstLibraryPath));
+            props.setProperty("gameyfin.db", "%s/%s/db".formatted(firstLibraryPath, INTERNAL_FOLDER_NAME));
         }
 
         if(!StringUtils.hasText(cachePath)) {
-            props.setProperty("gameyfin.cache", "%s/.gameyfin/cache".formatted(firstLibraryPath));
+            props.setProperty("gameyfin.cache", "%s/%s/cache".formatted(firstLibraryPath, INTERNAL_FOLDER_NAME));
         }
 
         env.getPropertySources().addFirst(new PropertiesPropertySource("gameyfinFilesystemProperties", props));

backend/src/main/java/de/grimsi/gameyfin/service/LibraryService.java

@@ -16,8 +16,10 @@ import org.springframework.stereotype.Service;
 import org.springframework.util.StopWatch;
 
 import java.io.IOException;
+import java.nio.file.DirectoryStream;
 import java.nio.file.Files;
 import java.nio.file.Path;
+import java.nio.file.Paths;
 import java.util.*;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.stream.Collectors;
@@ -46,7 +48,28 @@ public class LibraryService {
                 folder -> {
                     try (Stream<Path> stream = Files.list(folder)) {
                         // return all sub-folders (non-recursive) and files that have an extension that indicates that they are a downloadable file
-                        List<Path> gameFilesFromThisFolder = stream.filter(p -> Files.isDirectory(p) || hasGameArchiveExtension(p)).toList();
+                        List<Path> gameFilesFromThisFolder = stream
+                                .filter(p -> Files.isDirectory(p) || hasGameArchiveExtension(p))
+                                // filter out all hidden files and folders
+                                .filter(p -> {
+                                    try {
+                                        return !(Files.isHidden(p));
+                                    } catch (IOException e) {
+                                        throw new RuntimeException("Error while checking if '%s' is hidden.".formatted(p), e);
+                                    }
+                                })
+                                // filter out all empty directories
+                                .filter(p -> {
+                                    if(!Files.isDirectory(p)) return true;
+
+                                    try(DirectoryStream<Path> s = Files.newDirectoryStream(p)) {
+                                        return s.iterator().hasNext();
+                                    } catch(IOException e) {
+                                        throw new RuntimeException("Error while checking if folder '%s' is empty.".formatted(p), e);
+                                    }
+                                })
+                                .toList();
+
                         gamefiles.addAll(gameFilesFromThisFolder);
 
                     } catch (IOException e) {

frontend/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "frontend",
-  "version": "1.2.1",
+  "version": "1.2.2-SNAPSHOT",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "frontend",
-      "version": "1.2.1",
+      "version": "1.2.2-SNAPSHOT",
       "dependencies": {
         "@angular/animations": "^14.0.0",
         "@angular/cdk": "^14.1.0",

frontend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "frontend",
-  "version": "1.2.1",
+  "version": "1.2.2-SNAPSHOT",
   "scripts": {
     "ng": "ng",
     "start": "ng serve",

frontend/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <artifactId>gameyfin</artifactId>
     <groupId>de.grimsi</groupId>
-    <version>1.2.1</version>
+    <version>1.2.2-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 

pom.xml

@@ -5,7 +5,7 @@
 
 	<groupId>de.grimsi</groupId>
 	<artifactId>gameyfin</artifactId>
-	<version>1.2.1</version>
+	<version>1.2.2-SNAPSHOT</version>
 	<name>gameyfin</name>
 	<description>gameyfin</description>