Added eslint. To lint, npm run lint.

Linted the entire project. Using different rules for the script files
as there are a lot of undefined variables just because of the way the
DOM's global scope works.

Mostly just code cleanup, however the linter did catch a minor bug with
a settings regex. That has been corrected.

.eslintrc.json

@@ -0,0 +1,50 @@
+{
+    "env": {
+        "es6": true,
+        "node": true
+    },
+    "extends": "eslint:recommended",
+    "parserOptions": {
+        "ecmaVersion": 2017,
+        "sourceType": "module"
+    },
+    "rules": {
+        "indent": [
+            "error",
+            4,
+            {
+                "SwitchCase": 1
+            }
+        ],
+        "linebreak-style": [
+            "error",
+            "windows"
+        ],
+        "quotes": [
+            "error",
+            "single"
+        ],
+        "semi": [
+            "error",
+            "never"
+        ],
+        "no-var": [
+            "error"
+        ],
+        "no-console": [
+            0
+        ],
+        "no-control-regex": [
+            0
+        ],
+        "no-unused-vars": [
+            "error",
+            {
+                "vars": "all",
+                "args": "none",
+                "ignoreRestSiblings": false,
+                "argsIgnorePattern": "reject"
+            }
+        ]
+    }
+}

.eslintrc.scripts.json

@@ -0,0 +1,47 @@
+{
+    "env": {
+        "es6": true,
+        "node": true
+    },
+    "extends": "eslint:recommended",
+    "parserOptions": {
+        "ecmaVersion": 2017,
+        "sourceType": "module"
+    },
+    "rules": {
+        "indent": [
+            "error",
+            4,
+            {
+                "SwitchCase": 1
+            }
+        ],
+        "linebreak-style": [
+            "error",
+            "windows"
+        ],
+        "quotes": [
+            "error",
+            "single"
+        ],
+        "semi": [
+            "error",
+            "never"
+        ],
+        "no-var": [
+            "error"
+        ],
+        "no-console": [
+            0
+        ],
+        "no-control-regex": [
+            0
+        ],
+        "no-unused-vars": [
+            0
+        ],
+        "no-undef": [
+            0
+        ]
+    }
+}

app/assets/js/assetguard.js

@@ -22,7 +22,7 @@ const crypto        = require('crypto')
 const EventEmitter  = require('events')
 const fs            = require('fs')
 const isDev         = require('electron-is-dev')
-const mkpath        = require('mkdirp');
+const mkpath        = require('mkdirp')
 const path          = require('path')
 const Registry      = require('winreg')
 const request       = require('request')
@@ -70,13 +70,13 @@ class Library extends Asset {
     static mojangFriendlyOS(){
         const opSys = process.platform
         if (opSys === 'darwin') {
-            return 'osx';
+            return 'osx'
         } else if (opSys === 'win32'){
-            return 'windows';
+            return 'windows'
         } else if (opSys === 'linux'){
-            return 'linux';
+            return 'linux'
         } else {
-            return 'unknown_os';
+            return 'unknown_os'
         }
     }
 
@@ -241,12 +241,11 @@ class AssetGuard extends EventEmitter {
             if(hash == null){
                 return true
             }
-            let fileName = path.basename(filePath)
             let buf = fs.readFileSync(filePath)
             let calcdhash = AssetGuard._calculateHash(buf, algo)
             return calcdhash === hash
         }
-        return false;
+        return false
     }
 
     /**
@@ -926,7 +925,7 @@ class AssetGuard extends EventEmitter {
         }
 
         // Check the JAVA_HOME environment variable.
-        const jHome = AssetGuard._scanJavaHome()
+        let jHome = AssetGuard._scanJavaHome()
         if(jHome != null){
             // Ensure we are at the absolute root.
             if(jHome.contains('/Contents/Home')){
@@ -1099,7 +1098,6 @@ class AssetGuard extends EventEmitter {
             //Asset constants
             const resourceURL = 'http://resources.download.minecraft.net/'
             const localPath = path.join(self.commonPath, 'assets')
-            const indexPath = path.join(localPath, 'indexes')
             const objectPath = path.join(localPath, 'objects')
 
             const assetDlQueue = []
@@ -1112,7 +1110,7 @@ class AssetGuard extends EventEmitter {
                 self.emit('progress', 'assets', acc, total)
                 const hash = value.hash
                 const assetName = path.join(hash.substring(0, 2), hash)
-                const urlName = hash.substring(0, 2) + "/" + hash
+                const urlName = hash.substring(0, 2) + '/' + hash
                 const ast = new Asset(key, hash, value.size, resourceURL + urlName, path.join(objectPath, assetName))
                 if(!AssetGuard._validateLocal(ast.to, 'sha1', ast.hash)){
                     dlSize += (ast.size*1)
@@ -1271,7 +1269,7 @@ class AssetGuard extends EventEmitter {
 
     _parseDistroModules(modules, version, servid){
         let alist = []
-        let asize = 0;
+        let asize = 0
         let decompressqueue = []
         for(let ob of modules){
             let obType = ob.getType
@@ -1525,7 +1523,7 @@ class AssetGuard extends EventEmitter {
             }, (err) => {
 
                 if(err){
-                    console.log('An item in ' + identifier + ' failed to process');
+                    console.log('An item in ' + identifier + ' failed to process')
                 } else {
                     console.log('All ' + identifier + ' have been processed successfully')
                 }

app/assets/js/configmanager.js

@@ -73,7 +73,7 @@ const DEFAULT_CONFIG = {
     modConfigurations: []
 }
 
-let config = null;
+let config = null
 
 // Persistance Utility Functions
 

app/assets/js/discordwrapper.js

@@ -1,6 +1,5 @@
 // Work in progress
 const {Client} = require('discord-rpc')
-const ConfigManager = require('./configmanager')
 
 let client
 let activity

app/assets/js/distromanager.js

@@ -483,7 +483,7 @@ class DistroIndex {
      * @returns {Server} The main server.
      */
     getMainServer(){
-        return getServer(this.mainServer)
+        return this.mainServer != null ? this.getServer(this.mainServer) : null
     }
 
 }

app/assets/js/processbuilder.js

@@ -241,7 +241,7 @@ class ProcessBuilder {
         for(let i=0; i<mcArgs.length; ++i){
             if(argDiscovery.test(mcArgs[i])){
                 const identifier = mcArgs[i].match(argDiscovery)[1]
-                let val = null;
+                let val = null
                 switch(identifier){
                     case 'auth_player_name':
                         val = this.authUser.displayName
@@ -273,7 +273,7 @@ class ProcessBuilder {
                         break
                 }
                 if(val != null){
-                    mcArgs[i] = val;
+                    mcArgs[i] = val
                 }
             }
         }

app/assets/js/scripts/landing.js

@@ -152,8 +152,8 @@ const refreshMojangStatuses = async function(){
     console.log('Refreshing Mojang Statuses..')
 
     let status = 'grey'
-    let tooltipEssentialHTML = ``
+    let tooltipEssentialHTML = ''
-    let tooltipNonEssentialHTML = ``
+    let tooltipNonEssentialHTML = ''
 
     try {
         const statuses = await Mojang.status()
@@ -366,7 +366,7 @@ function asyncSystemScan(launchAfter = true){
         } else if(m.context === 'complete'){
 
             switch(m.data){
-                case 'download':
+                case 'download': {
                     // Show installing progress bar.
                     remote.getCurrentWindow().setProgressBar(2)
 
@@ -383,6 +383,7 @@ function asyncSystemScan(launchAfter = true){
                         setLaunchDetails(eLStr + dotStr)
                     }, 750)
                     break
+                }
                 case 'java':
                 // Download & extraction complete, remove the loading from the OS progress bar.
                     remote.getCurrentWindow().setProgressBar(-1)
@@ -497,14 +498,15 @@ function dlAsync(login = true){
             }
         } else if(m.context === 'progress'){
             switch(m.data){
-                case 'assets':
+                case 'assets': {
                     const perc = (m.value/m.total)*20
                     setLaunchPercentage(40+perc, 100, parseInt(40+perc))
                     break
+                }
                 case 'download':
                     setDownloadPercentage(m.value, m.total, m.percent)
                     break
-                case 'extract':
+                case 'extract': {
                     // Show installing progress bar.
                     remote.getCurrentWindow().setProgressBar(2)
 
@@ -522,6 +524,7 @@ function dlAsync(login = true){
                     }, 750)
                     break
                 }
+            }
         } else if(m.context === 'complete'){
             switch(m.data){
                 case 'download':
@@ -1022,7 +1025,7 @@ function loadNews(){
                         let content = el.find('content\\:encoded').text()
                         let regex = /src="(?!http:\/\/|https:\/\/)(.+)"/g
                         let matches
-                    while(matches = regex.exec(content)){
+                        while((matches = regex.exec(content))){
                             content = content.replace(matches[1], newsHost + matches[1])
                         }
 

app/assets/js/scripts/overlay.js

@@ -22,7 +22,7 @@ function toggleOverlay(toggleState, dismissable = false, content = 'overlayConte
     if(toggleState){
         document.getElementById('main').setAttribute('overlay', true)
         // Make things untabbable.
-        $("#main *").attr('tabindex', '-1')
+        $('#main *').attr('tabindex', '-1')
         $('#' + content).parent().children().hide()
         $('#' + content).show()
         if(dismissable){
@@ -41,7 +41,7 @@ function toggleOverlay(toggleState, dismissable = false, content = 'overlayConte
     } else {
         document.getElementById('main').removeAttribute('overlay')
         // Make things tabbable.
-        $("#main *").removeAttr('tabindex')
+        $('#main *').removeAttr('tabindex')
         $('#overlayContainer').fadeOut({
             duration: 250,
             start: () => {
@@ -232,9 +232,9 @@ function populateServerListings(){
     const distro = DistroManager.getDistribution()
     const giaSel = ConfigManager.getSelectedServer()
     const servers = distro.getServers()
-    let htmlString = ``
+    let htmlString = ''
     for(const serv of servers){
-        htmlString += `<button class="serverListing" servid="${serv.getID()}" ${serv.getID() === giaSel ? `selected` : ``}>
+        htmlString += `<button class="serverListing" servid="${serv.getID()}" ${serv.getID() === giaSel ? 'selected' : ''}>
             <img class="serverListingImg" src="${serv.getIcon()}"/>
             <div class="serverListingDetails">
                 <span class="serverListingName">${serv.getName()}</span>
@@ -251,7 +251,7 @@ function populateServerListings(){
                             <circle class="cls-2" cx="53.73" cy="53.9" r="38"/>
                         </svg>
                         <span class="serverListingStarTooltip">Main Server</span>
-                    </div>` : ``}
+                    </div>` : ''}
                 </div>
             </div>
         </button>`
@@ -262,8 +262,8 @@ function populateServerListings(){
 
 function populateAccountListings(){
     const accountsObj = ConfigManager.getAuthAccounts()
-    const accounts = Array.from(Object.keys(accountsObj), v=>accountsObj[v]);
+    const accounts = Array.from(Object.keys(accountsObj), v=>accountsObj[v])
-    let htmlString = ``
+    let htmlString = ''
     for(let i=0; i<accounts.length; i++){
         htmlString += `<button class="accountListing" uuid="${accounts[i].uuid}" ${i===0 ? 'selected' : ''}>
             <img src="https://crafatar.com/renders/head/${accounts[i].uuid}?scale=2&default=MHF_Steve&overlay">

app/assets/js/scripts/settings.js

@@ -363,7 +363,7 @@ function populateAuthAccounts(){
     const authKeys = Object.keys(authAccounts)
     const selectedUUID = ConfigManager.getSelectedAccount().uuid
 
-    let authAccountStr = ``
+    let authAccountStr = ''
 
     authKeys.map((val) => {
         const acc = authAccounts[val]
@@ -412,12 +412,12 @@ function prepareAccountsTab() {
   * Disable decimals, negative signs, and scientific notation.
   */
 document.getElementById('settingsGameWidth').addEventListener('keydown', (e) => {
-    if(/[-\.eE]/.test(e.key)){
+    if(/^[-.eE]$/.test(e.key)){
         e.preventDefault()
     }
 })
 document.getElementById('settingsGameHeight').addEventListener('keydown', (e) => {
-    if(/[-\.eE]/.test(e.key)){
+    if(/^[-.eE]$/.test(e.key)){
         e.preventDefault()
     }
 })

app/assets/js/scripts/uibinder.js

@@ -104,7 +104,7 @@ function showMainUI(data){
     }, 750)
     // Disable tabbing to the news container.
     initNews().then(() => {
-        $("#newsContainer *").attr('tabindex', '-1')
+        $('#newsContainer *').attr('tabindex', '-1')
     })
 }
 
@@ -313,7 +313,7 @@ async function validateSelectedAccount(){
                     })
                 } else {
                     const accountsObj = ConfigManager.getAuthAccounts()
-                    const accounts = Array.from(Object.keys(accountsObj), v => accountsObj[v]);
+                    const accounts = Array.from(Object.keys(accountsObj), v => accountsObj[v])
                     // This function validates the account switch.
                     setSelectedAccount(accounts[0].uuid)
                     toggleOverlay(false)

app/assets/js/scripts/uicore.js

@@ -5,7 +5,7 @@
  * modules, excluding dependencies.
  */
 // Requirements
-const $                                      = require('jquery');
+const $                                      = require('jquery')
 const {ipcRenderer, remote, shell, webFrame} = require('electron')
 const isDev                                  = require('electron-is-dev')
 
@@ -50,6 +50,7 @@ if(!isDev){
                     ipcRenderer.send('autoUpdateAction', 'checkForUpdate')
                 }, 1800000)
                 ipcRenderer.send('autoUpdateAction', 'checkForUpdate')
+                break
             case 'realerror':
                 if(info != null && info.code != null){
                     if(info.code === 'ERR_UPDATER_INVALID_RELEASE_FEED'){
@@ -108,7 +109,7 @@ $(function(){
 
 document.addEventListener('readystatechange', function () {
     if (document.readyState === 'interactive'){
-        console.log('UICore Initializing..');
+        console.log('UICore Initializing..')
 
         // Bind close button.
         Array.from(document.getElementsByClassName('fCb')).map((val) => {
@@ -157,10 +158,10 @@ document.addEventListener('readystatechange', function () {
         //const targetWidth2 = document.getElementById("server_selection").getBoundingClientRect().width
         //const targetWidth3 = document.getElementById("launch_button").getBoundingClientRect().width
 
-        document.getElementById("launch_details").style.maxWidth = 266.01
+        document.getElementById('launch_details').style.maxWidth = 266.01
-        document.getElementById("launch_progress").style.width = 170.8
+        document.getElementById('launch_progress').style.width = 170.8
-        document.getElementById("launch_details_right").style.maxWidth = 170.8
+        document.getElementById('launch_details_right').style.maxWidth = 170.8
-        document.getElementById("launch_progress_label").style.width = 53.21
+        document.getElementById('launch_progress_label').style.width = 53.21
         
     }
 
@@ -170,7 +171,7 @@ document.addEventListener('readystatechange', function () {
  * Open web links in the user's default browser.
  */
 $(document).on('click', 'a[href^="http"]', function(event) {
-    event.preventDefault();
+    event.preventDefault()
     //console.log(os.homedir())
     shell.openExternal(this.href)
 })

app/assets/js/windowutils.js

@@ -1,44 +0,0 @@
-const app = require('electron')
-const remote = require('electron').BrowserWindow
-
-/**
- * Doesn't work yet.
- */
-exports.setIconBadge = function(text){
-    if(process.platform === 'darwin'){
-        app.dock.setBadge('' + text)
-    } else if (process.platform === 'win32'){
-        const win = remote.getFocusedWindow()
-        if(text === ''){
-            win.setOverlayIcon(null, '')
-            return;
-        }
-
-        //Create badge
-        const canvas = document.createElement('canvas')
-        canvas.height = 140;
-        canvas.width = 140;
-        const ctx = canvas.getContext('2d')
-        ctx.fillStyle = '#a02d2a'
-        ctx.beginPath()
-        ctx.ellipse(70, 70, 70, 70, 0, 0, 2 * Math.PI)
-        ctx.fill()
-        ctx.textAlign = 'center'
-        ctx.fillStyle = 'white'
-
-        if(text.length > 2 ){
-            ctx.font = '75px sans-serif'
-            ctx.fillText('' + text, 70, 98)
-        } else if (text.length > 1){
-            ctx.font = '100px sans-serif'
-            ctx.fillText('' + text, 70, 105)
-        } else {
-            ctx.font = '125px sans-serif'
-            ctx.fillText('' + text, 70, 112)
-        }
-
-        const badgeDataURL = canvas.toDataURL()
-        const img = NativeImage.createFromDataURL(badgeDataURL)
-        win.setOverlayIcon(img, '' + text)
-    }
-}

index.js

@@ -130,7 +130,7 @@ function getPlatformIcon(filename){
     return path.join(__dirname, 'app', 'assets', 'images', filename)
 }
 
-app.on('ready', createWindow);
+app.on('ready', createWindow)
 
 app.on('window-all-closed', () => {
     // On macOS it is common for applications and their menu bar

package.json

@@ -12,7 +12,8 @@
     "dist:win": "npm run dist -- --win --x64",
     "dist:mac": "npm run dist -- --mac",
     "dist:linux": "npm run dist -- --linux --x64",
-    "dist:all": "npm run dist -- -wl --x64"
+    "dist:all": "npm run dist -- -wl --x64",
+    "lint": "eslint --config .eslintrc.json --ignore-pattern app/assets/js/scripts/*.js . && eslint --config .eslintrc.scripts.json app/assets/js/scripts"
   },
   "engines": {
     "node": "10.5.x"
@@ -47,7 +48,8 @@
   },
   "devDependencies": {
     "electron": "^2.0.5",
-    "electron-builder": "^20.24.4"
+    "electron-builder": "^20.24.4",
+    "eslint": "^5.2.0"
   },
   "build": {
     "appId": "westeroscraftlauncher",