Change library extraction to be queue based to ensure it completes.

app/assets/js/assetexec.js

@@ -14,6 +14,10 @@ tracker.on('totaldlprogress', (data) => {
     process.send({task: 0, total: data.total, value: data.acc, percent: parseInt((data.acc/data.total)*100), content: 'dl'})
 })
 
+tracker.on('extracting', () => {
+    process.send({task: 0.7, content: 'dl'})
+})
+
 tracker.on('dlcomplete', () => {
     process.send({task: 1, content: 'dl'})
 })

app/assets/js/assetguard.js

@@ -191,6 +191,7 @@ class AssetGuard extends EventEmitter {
         this.files = new DLTracker([], 0)
         this.forge = new DLTracker([], 0)
         this.java = new DLTracker([], 0)
+        this.extractQueue = []
         this.basePath = basePath
         this.javaexec = javaexec
     }
@@ -1286,10 +1287,8 @@ class AssetGuard extends EventEmitter {
                 self.forge = self._parseDistroModules(serv.modules, serv.mc_version)
                 // Correct our workaround here.
                 let decompressqueue = self.forge.callback
+                self.extractQueue = decompressqueue
                 self.forge.callback = function(asset, self){
-                    if(asset.to.toLowerCase().endsWith('.pack.xz')){
-                        AssetGuard._extractPackXZ([asset.to], self.javaexec)
-                    }
                     if(asset.type === 'forge-hosted' || asset.type === 'forge'){
                         AssetGuard._finalizeForgeAsset(asset, self.basePath)
                     }
@@ -1315,7 +1314,6 @@ class AssetGuard extends EventEmitter {
     _parseDistroModules(modules, version){
         let alist = []
         let asize = 0;
-        //This may be removed soon, considering the most efficient way to extract.
         let decompressqueue = []
         for(let i=0; i<modules.length; i++){
             let ob = modules[i]
@@ -1576,7 +1574,11 @@ class AssetGuard extends EventEmitter {
                 self.progress -= self[identifier].dlsize
                 self[identifier] = new DLTracker([], 0)
                 if(self.totaldlsize === 0) {
+                    self.emit('extracting')
+                    AssetGuard._extractPackXZ(self.extractQueue, self.javaexec).then(() => {
+                        self.extractQueue = []
                         self.emit('dlcomplete')
+                    })
                 }
             })
             return true

app/assets/js/scripts/landing.js

@@ -440,6 +440,11 @@ function dlAsync(login = true){
 
                 setDownloadPercentage(m.value, m.total, m.percent)
 
+            } else if(m.task === 0.7){
+                
+                // Download done, extracting.
+                setLaunchDetails('Extracting libraries..')
+
             } else if(m.task === 1){
 
                 // Download will be at 100%, remove the loading from the OS progress bar.