added "UseWorkshop" function

Try to find the correct pbo from the steam "!Workshop" folder in order to reduce downloads

gui/src/main/java/de/mc8051/arma3launcher/LauncherGUI.java

@@ -1060,6 +1060,14 @@ public class LauncherGUI implements Observer {
                 case FINNISHED:
                     refreshRepoButton.setEnabled(true);
                     updateRepoTree();
+
+                    final Parameter<Boolean> checkModsetParameter = Parameters.CHECK_MODSET.toBooolParameter();
+                    if(checkModsetParameter.getValue() != null && checkModsetParameter.getValue()) {
+                        if(!fileChecker.isChecked()) {
+                            SwingUtilities.invokeLater(() -> fileCheck(false));
+                            Logger.getLogger(getClass().getName()).log(Level.INFO, "Started file check on launch");
+                        }
+                    }
                     break;
 
                 case RUNNING:
@@ -1122,7 +1130,8 @@ public class LauncherGUI implements Observer {
 
             lastSynclist = null;
         } else if (s.equals("syncStopped")) {
-            new Thread(() -> fileChecker.check(true)).start();
+            final Parameter<Boolean> workshopParameter = Parameters.USE_WORKSHOP.toBooolParameter();
+            new Thread(() -> fileChecker.check(!(workshopParameter.getValue() != null && workshopParameter.getValue()))).start();
             SwingUtilities.invokeLater(() -> {
                 syncDownloadButton.setEnabled(false);
                 syncDownloadAbortButton.setEnabled(false);
@@ -1133,7 +1142,8 @@ public class LauncherGUI implements Observer {
                 TaskBarUtils.getInstance().off();
             });
         } else if (s.equals("syncComplete")) {
-            new Thread(() -> fileChecker.check(true)).start();
+            final Parameter<Boolean> workshopParameter = Parameters.USE_WORKSHOP.toBooolParameter();
+            new Thread(() -> fileChecker.check(!(workshopParameter.getValue() != null && workshopParameter.getValue()))).start();
             SwingUtilities.invokeLater(() -> {
                 syncDownloadButton.setEnabled(false);
                 syncDownloadAbortButton.setEnabled(false);

gui/src/main/java/de/mc8051/arma3launcher/repo/FileChecker.java

@@ -138,7 +138,9 @@ public class FileChecker implements Observable {
         if (modPath == null) modPath = "";
 
         try {
-            List<Path> filePathList = Files.find(Paths.get(modPath),
+            final Path path = Paths.get(modPath);
+            if(!path.toFile().exists() || !path.toFile().isDirectory()) return;
+            List<Path> filePathList = Files.find(path,
                     Integer.MAX_VALUE,
                     (filePath, fileAttr) -> fileAttr.isRegularFile())
                     .collect(Collectors.toList());

gui/src/main/java/de/mc8051/arma3launcher/repo/sync/Syncer.java

@@ -5,6 +5,8 @@ import co.bitshfted.xapps.zsync.ZsyncException;
 import co.bitshfted.xapps.zsync.http.ContentRange;
 import de.mc8051.arma3launcher.ArmA3Launcher;
 import de.mc8051.arma3launcher.LauncherGUI;
+import de.mc8051.arma3launcher.Parameter;
+import de.mc8051.arma3launcher.Parameters;
 import de.mc8051.arma3launcher.interfaces.Observable;
 import de.mc8051.arma3launcher.interfaces.Observer;
 import de.mc8051.arma3launcher.objects.AbstractMod;
@@ -13,15 +15,21 @@ import de.mc8051.arma3launcher.utils.Humanize;
 import de.mc8051.arma3launcher.utils.TaskBarUtils;
 
 import javax.swing.*;
+import java.io.File;
 import java.io.IOException;
 import java.net.URI;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
+import java.nio.file.StandardCopyOption;
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
+import java.util.NoSuchElementException;
 import java.util.logging.Level;
 import java.util.logging.Logger;
+import java.util.stream.Collectors;
 
 /**
  * Created by gurkengewuerz.de on 25.03.2020.
@@ -58,6 +66,8 @@ public class Syncer implements Observable, SyncListener {
     private Zsync zsync;
     private LauncherGUI gui;
 
+    private Map<Path, Long> workshopFiles = new HashMap<>();
+
     public Syncer(LauncherGUI gui) {
         zsync = new Zsync();
         this.gui = gui;
@@ -88,6 +98,9 @@ public class Syncer implements Observable, SyncListener {
             TaskBarUtils.getInstance().normal();
         });
 
+        final Parameter<Boolean> workshopParameter = Parameters.USE_WORKSHOP.toBooolParameter();
+        if(workshopParameter.getValue() != null && workshopParameter.getValue()) workshopFiles = WorkshopUtil.workshopFiles();
+
         boolean lastPause = false;
         while (running) {
             if (stopped) {
@@ -131,6 +144,28 @@ public class Syncer implements Observable, SyncListener {
             }
 
             if (mf != null) {
+                final Path mfPath = mf.getLocaleFile().toPath();
+                if(!workshopFiles.isEmpty()) {
+                    try {
+                        final String modfilePatj = mf.getModfileString().replace("/", File.separator).toLowerCase();
+                        Map.Entry<Path, Long> workshopFile = workshopFiles.entrySet()
+                                .stream().filter(e -> e.getKey().toAbsolutePath().toString().toLowerCase().endsWith(modfilePatj)).findFirst().get();
+                        if(workshopFile.getValue() == mf.getSize()) {
+                            Files.copy(workshopFile.getKey(), mfPath, StandardCopyOption.REPLACE_EXISTING);
+                            Logger.getLogger(getClass().getName()).log(Level.INFO, "Found workshop file and copied: " + mfPath);
+                            success++;
+                            finnishCurrent();
+                            continue;
+                        }
+                    } catch (NoSuchElementException | IOException ignored) {}
+                }
+                if(workshopFiles.containsKey(mfPath)) {
+                    final Long workshopFileSize = workshopFiles.get(mfPath);
+                    if(mf.getSize() == workshopFileSize) {
+                        Logger.getLogger(getClass().getName()).log(Level.INFO, mfPath + "");
+                    }
+                }
+
                 Zsync.Options o = new Zsync.Options();
                 o.setOutputFile(Paths.get(mf.getLocaleFile().getAbsolutePath()));
                 o.setUseragent(ArmA3Launcher.USER_AGENT);

gui/src/main/java/de/mc8051/arma3launcher/repo/sync/WorkshopUtil.java

@@ -0,0 +1,40 @@
+package de.mc8051.arma3launcher.repo.sync;
+
+import de.mc8051.arma3launcher.Parameters;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+/**
+ * Created by gurkengewuerz.de on 30.03.2020.
+ */
+public class WorkshopUtil {
+
+    public static Map<Path, Long> workshopFiles() {
+        Map<Path, Long> fileMap = new HashMap<>();
+
+        final String armaPath = Parameters.ARMA_PATH.toStringParameter().getValue();
+        if(armaPath == null) return fileMap;
+
+        final Path workshopPath = Paths.get(armaPath, "!Workshop");
+
+        if(!workshopPath.toFile().exists()) return fileMap;
+        if(!workshopPath.toFile().isDirectory()) return fileMap;
+
+        try {
+            fileMap = Files.find(workshopPath,
+                    Integer.MAX_VALUE,
+                    (filePath, fileAttr) -> fileAttr.isRegularFile())
+                    .filter((p) -> p.toFile().getName().endsWith(".pbo"))
+                    .collect(Collectors.toMap(path -> path, path -> path.toFile().length()));
+            return fileMap;
+        } catch (IOException ex) {
+            return fileMap;
+        }
+    }
+}