v0.20.0-pre1

* initial release of wails console

* lint fix

CONTRIBUTORS.md

@@ -2,21 +2,22 @@
 
 Wails is what it is because of the time and effort given by these great people. A huge thank you to each and every one!
 
-* [Dustin Krysak](https://wiki.ubuntu.com/bashfulrobot)
-* [Qais Patankar](https://github.com/qaisjp)
-* [Anthony Lee](https://github.com/alee792)
-* [Adrian Lanzafame](https://github.com/lanzafame)
-* [Mattn](https://github.com/mattn)
-* [0xflotus](https://github.com/0xflotus)
-* [Michael D Henderson](https://github.com/mdhender)
-* [fred2104](https://github.com/fishfishfish2104)
-* [intelwalk](https://github.com/intelwalk)
-* [Mark Stenglein](https://github.com/ocelotsloth)
-* [admin_3.exe](https://github.com/bh90210)
-* [iceleo-com](https://github.com/iceleo-com)
-* [fallendusk](https://github.com/fallendusk)
-* [Florian Didran](https://github.com/fdidron)
-* [Nikolai Zimmermann](https://github.com/Chronophylos)
-* [Toyam Cox](https://github.com/Vaelatern)
-* [Robin Eklind](https://github.com/mewmew)
-* [Kris Raney](https://github.com/kraney)
+  * [Dustin Krysak](https://wiki.ubuntu.com/bashfulrobot)
+  * [Qais Patankar](https://github.com/qaisjp)
+  * [Anthony Lee](https://github.com/alee792)
+  * [Adrian Lanzafame](https://github.com/lanzafame)
+  * [Mattn](https://github.com/mattn)
+  * [0xflotus](https://github.com/0xflotus)
+  * [Michael D Henderson](https://github.com/mdhender)
+  * [fred2104](https://github.com/fishfishfish2104)
+  * [intelwalk](https://github.com/intelwalk)
+  * [Mark Stenglein](https://github.com/ocelotsloth)
+  * [admin_3.exe](https://github.com/bh90210)
+  * [iceleo-com](https://github.com/iceleo-com)
+  * [fallendusk](https://github.com/fallendusk)
+  * [Florian Didran](https://github.com/fdidron)
+  * [Nikolai Zimmermann](https://github.com/Chronophylos)
+  * [Toyam Cox](https://github.com/Vaelatern)
+  * [Robin Eklind](https://github.com/mewmew)
+  * [Kris Raney](https://github.com/kraney)
+  * [Jack Mordaunt](https://github.com/JackMordaunt)

app.go

@@ -1,7 +1,9 @@
 package wails
 
 import (
+	"fmt"
 	"os"
+	"runtime"
 	"syscall"
 
 	"github.com/syossan27/tebata"
@@ -43,7 +45,7 @@ func CreateApp(optionalConfig ...*AppConfig) *App {
 	}
 
 	result := &App{
-		logLevel:       "info",
+		logLevel:       "debug",
 		renderer:       renderer.NewWebView(),
 		ipc:            ipc.NewManager(),
 		bindingManager: binding.NewManager(),
@@ -65,9 +67,28 @@ func CreateApp(optionalConfig ...*AppConfig) *App {
 		result.config.DisableInspector = true
 	}
 
+	// If running windows, do a hidpi fix
+	if runtime.GOOS == "windows" {
+		err := SetProcessDPIAware()
+		if err != nil {
+			result.log.Fatalf(err.Error())
+		}
+	}
+
 	return result
 }
 
+// SetProcessDPIAware via user32.dll
+// https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-setprocessdpiaware
+// Also, thanks Jack Mordaunt! https://github.com/wailsapp/wails/issues/293
+func SetProcessDPIAware() error {
+	status, r, err := syscall.NewLazyDLL("user32.dll").NewProc("SetProcessDPIAware").Call()
+	if status == 0 {
+		return fmt.Errorf("exit status %d: %v %v", status, r, err)
+	}
+	return nil
+}
+
 // Run the app
 func (a *App) Run() error {
 
@@ -102,6 +123,11 @@ func (a *App) start() error {
 		return err
 	}
 
+	// Enable console for Windows debug builds
+	if runtime.GOOS == "windows" && BuildMode == cmd.BuildModeDebug {
+		a.renderer.EnableConsole()
+	}
+
 	// Start signal handler
 	t := tebata.New(os.Interrupt, os.Kill, syscall.SIGTERM, syscall.SIGINT, syscall.SIGKILL)
 	t.Reserve(func() {

cmd/helpers.go

@@ -7,6 +7,7 @@ import (
 	"os/exec"
 	"path/filepath"
 	"runtime"
+	"strings"
 	"time"
 
 	"github.com/leaanthony/mewn"
@@ -87,6 +88,17 @@ func BuildApplication(binaryName string, forceRebuild bool, buildMode string, pa
 	buildCommand.Add("build")
 
 	if binaryName != "" {
+		// Alter binary name based on OS
+		switch runtime.GOOS {
+		case "windows":
+			if !strings.HasSuffix(binaryName, ".exe") {
+				binaryName += ".exe"
+			}
+		default:
+			if strings.HasSuffix(binaryName, ".exe") {
+				binaryName = strings.TrimSuffix(binaryName, ".exe")
+			}
+		}
 		buildCommand.Add("-o")
 		buildCommand.Add(binaryName)
 	}
@@ -103,7 +115,7 @@ func BuildApplication(binaryName string, forceRebuild bool, buildMode string, pa
 	}
 
 	// Add windows flags
-	if runtime.GOOS == "windows" {
+	if runtime.GOOS == "windows" && buildMode == BuildModeProd {
 		ldflags += "-H windowsgui "
 	}
 

cmd/templates/angular-template/frontend/browserslist

@@ -9,4 +9,4 @@
 last 2 versions
 Firefox ESR
 not dead
-not IE 9-11 # For IE 9-11 support, remove 'not'.
+IE 9-11 # For IE 9-11 support, remove 'not'.

cmd/templates/angular-template/frontend/package.json.template

@@ -22,6 +22,7 @@
     "@angular/platform-browser-dynamic": "~8.0.1",
     "@angular/router": "~8.0.1",
     "@wailsapp/runtime": "^1.0.0",
+    "core-js": "^3.4.4",
     "ngx-build-plus": "^8.0.3",
     "rxjs": "~6.4.0",
     "tslib": "^1.9.0",

cmd/templates/angular-template/frontend/src/main.ts

@@ -1,3 +1,4 @@
+import 'core-js/stable';
 import { enableProdMode } from '@angular/core';
 import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
 

cmd/templates/angular-template/frontend/src/wailsbridge.js

@@ -1,17 +0,0 @@
-/*
-    Wails Bridge (c) 2019-present Lea Anthony
-
-    This prod version is to get around having to rewrite your code
-    for production. When doing a release build, this file will be used 
-    instead of the full version.
-*/
-
-export default {
-  // The main function
-  // Passes the main Wails object to the callback if given.
-  Start: function(callback) {
-    if (callback) {
-      window.wails.events.on("wails:ready", callback);
-    }
-  }
-};

cmd/templates/angular-template/frontend/tsconfig.json

@@ -11,7 +11,7 @@
     "module": "esnext",
     "moduleResolution": "node",
     "importHelpers": true,
-    "target": "es2015",
+    "target": "es5",
     "typeRoots": [
       "node_modules/@types"
     ],
@@ -20,4 +20,4 @@
       "dom"
     ]
   }
-}
+}

cmd/templates/angular-template/main.go.template

@@ -11,7 +11,7 @@ func basic() string {
 
 func main() {
 
-	js := mewn.String("./frontend/dist/my-app/main-es2015.js")
+	js := mewn.String("./frontend/dist/my-app/main.js")
 	css := mewn.String("./frontend/dist/my-app/styles.css")
 
 	app := wails.CreateApp(&wails.AppConfig{

cmd/templates/create-react-app/frontend/src/wailsbridge.js

@@ -1,17 +0,0 @@
-/*
-    Wails Bridge (c) 2019-present Lea Anthony
-
-    This prod version is to get around having to rewrite your code
-    for production. When doing a release build, this file will be used 
-    instead of the full version.
-*/
-
-export default {
-  // The main function
-  // Passes the main Wails object to the callback if given.
-  Start: function (callback) {
-    if (callback) {
-      window.wails.Events.On("wails:ready", callback);
-    }
-  }
-};

cmd/version.go

@@ -1,4 +1,4 @@
 package cmd
 
 // Version - Wails version
-const Version = "v0.18.11-pre"
+const Version = "v0.20.0-pre1"

cmd/wails/9_issue.go

@@ -80,15 +80,16 @@ To help you in this process, we will ask for some information, add Go/Wails deta
 		npm := program.FindProgram("npm")
 		if npm != nil {
 			stdout, _, _, _ := npm.Run("--version")
-			nodeVersion = stdout
-			nodeVersion = nodeVersion[:len(nodeVersion)-1]
+			npmVersion = stdout
+			npmVersion = npmVersion[:len(npmVersion)-1]
+			npmVersion = strings.TrimSpace(npmVersion)
 		}
 
 		node := program.FindProgram("node")
 		if node != nil {
 			stdout, _, _, _ := node.Run("--version")
-			npmVersion = stdout
-			npmVersion = npmVersion[:len(npmVersion)-1]
+			nodeVersion = stdout
+			nodeVersion = nodeVersion[:len(nodeVersion)-1]
 		}
 
 		str.WriteString("\n| Name   | Value |\n| ----- | ----- |\n")

lib/interfaces/renderer.go

@@ -3,10 +3,12 @@ package interfaces
 import (
 	"github.com/wailsapp/wails/lib/messages"
 )
+
 // Renderer is an interface describing a Wails target to render the app to
 type Renderer interface {
 	Initialise(AppConfig, IPCManager, EventManager) error
 	Run() error
+	EnableConsole()
 
 	// Binding
 	NewBinding(bindingName string) error

lib/renderer/bridge.go

@@ -74,6 +74,10 @@ func (h *Bridge) evalJS(js string, mtype messageType) error {
 	return nil
 }
 
+// EnableConsole not needed for bridge!
+func (h *Bridge) EnableConsole() {
+}
+
 func (h *Bridge) injectCSS(css string) {
 	// Minify css to overcome issues in the browser with carriage returns
 	minified, err := htmlmin.Minify([]byte(css), &htmlmin.Options{

lib/renderer/webview.go

@@ -19,12 +19,13 @@ import (
 // WebView defines the main webview application window
 // Default values in []
 type WebView struct {
-	window       wv.WebView // The webview object
-	ipc          interfaces.IPCManager
-	log          *logger.CustomLogger
-	config       interfaces.AppConfig
-	eventManager interfaces.EventManager
-	bindingCache []string
+	window        wv.WebView // The webview object
+	ipc           interfaces.IPCManager
+	log           *logger.CustomLogger
+	config        interfaces.AppConfig
+	eventManager  interfaces.EventManager
+	bindingCache  []string
+	enableConsole bool
 }
 
 // NewWebView returns a new WebView struct
@@ -103,6 +104,11 @@ func (w *WebView) evalJS(js string) error {
 	return nil
 }
 
+// EnableConsole enables the console!
+func (w *WebView) EnableConsole() {
+	w.enableConsole = true
+}
+
 // Escape the Javascripts!
 func escapeJS(js string) (string, error) {
 	result := strings.Replace(js, "\\", "\\\\", -1)
@@ -172,6 +178,13 @@ func (w *WebView) Run() error {
 
 	w.log.Info("Running...")
 
+	// Inject firebug in debug mode on Windows
+	if w.enableConsole {
+		w.log.Debug("Enabling Wails console")
+		console := mewn.String("../../runtime/assets/console.js")
+		w.evalJS(console)
+	}
+
 	// Runtime assets
 	wailsRuntime := mewn.String("../../runtime/assets/wails.js")
 	w.evalJS(wailsRuntime)

lib/renderer/webview/webview.go

@@ -13,7 +13,7 @@ package webview
 #cgo linux openbsd freebsd CFLAGS: -DWEBVIEW_GTK=1 -Wno-deprecated-declarations
 #cgo linux openbsd freebsd pkg-config: gtk+-3.0 webkit2gtk-4.0
 
-#cgo windows CFLAGS: -DWEBVIEW_WINAPI=1 -std=c99 -DUNICODE=1
+#cgo windows CFLAGS: -DWEBVIEW_WINAPI=1 -std=c99
 #cgo windows LDFLAGS: -lole32 -lcomctl32 -loleaut32 -luuid -lgdi32
 
 #cgo darwin CFLAGS: -DWEBVIEW_COCOA=1 -x objective-c

lib/renderer/webview/webview.h

@@ -1603,9 +1603,20 @@ struct webview_priv
 
   WEBVIEW_API void webview_set_title(struct webview *w, const char *title)
   {
+  #ifdef UNICODE
+    wchar_t *u16title = webview_to_utf16(title);
+    if (u16title == NULL)
+    {
+      return;
+    }
+    SetWindowText(w->priv.hwnd, u16title);
+    GlobalFree(u16title);
+  #else
     SetWindowText(w->priv.hwnd, title);
+  #endif
   }
 
+
   WEBVIEW_API void webview_set_fullscreen(struct webview *w, int fullscreen)
   {
     if (w->priv.is_fullscreen == !!fullscreen)

runtime/assets/bridge.js

@@ -95,13 +95,6 @@ function startBridge() {
 		window.wailsbridge.reconnectOverlay.style.display = 'none';
 	}
 
-	// Bridge external.invoke
-	window.external = {
-		invoke: function (msg) {
-			window.wailsbridge.websocket.send(msg);
-		}
-	};
-
 	// Adds a script to the Dom.
 	// Removes it if second parameter is true.
 	function addScript(script, remove) {
@@ -214,4 +207,4 @@ function Init(callback) {
 	start(callback);
 }
 
-module.exports = Init;
+module.exports = Init;

runtime/assets/console.js

@@ -0,0 +1,175 @@
+(function () {
+
+    window.wailsconsole = {};
+
+    var debugconsole = document.createElement("div");
+    var header = document.createElement("div");
+    var consoleOut = document.createElement("div");
+
+
+    document.addEventListener('keyup', logKey);
+
+    debugconsole.id = "wailsdebug";
+    debugconsole.style.fontSize = "18px";
+    debugconsole.style.width = "100%";
+    debugconsole.style.height = "35%";
+    debugconsole.style.maxHeight = "35%";
+    debugconsole.style.position = "fixed";
+    debugconsole.style.left = "0px";
+    debugconsole.style.backgroundColor = "rgba(255,255,255,0.8)";
+    debugconsole.style.borderTop = '1px solid black';
+    debugconsole.style.color = "black";
+    debugconsole.style.display = "none";
+
+    header.style.width = "100%";
+    header.style.height = "30px";
+    header.style.display = "block";
+    // header.style.paddingTop = "3px";
+    header.style.verticalAlign = "middle";
+    header.style.paddingLeft = "10px";
+    header.style.background = "rgba(255,255,255,0.8)";
+    header.innerHTML = "  <span style='vertical-align: middle'> Wails Console > <input id='conin' style='border: solid 1px black; width: 50%'></input><span style='padding-left: 5px; cursor:pointer;' onclick='window.wailsconsole.clearConsole()'>Clear</span></span>";
+
+    consoleOut.style.position = "absolute";
+    consoleOut.style.width = "100%";
+    consoleOut.style.height = "auto";
+    consoleOut.style.top = "30px";
+    // consoleOut.style.paddingLeft = "10px";
+    consoleOut.style.bottom = "0px";
+    consoleOut.style.backgroundColor = "rgba(200,200,200,1)";
+    consoleOut.style.overflowY = "scroll";
+    consoleOut.style.msOverflowStyle = "-ms-autohiding-scrollbar";
+
+    debugconsole.appendChild(header);
+    debugconsole.appendChild(consoleOut);
+    document.body.appendChild(debugconsole);
+    console.log(debugconsole.style.display)
+
+    function logKey(e) {
+        var conin = document.getElementById('conin');
+        if (e.which == 27 && e.shiftKey) {
+            toggleConsole(conin);
+        }
+        if (e.which == 13 && consoleVisible()) {
+            var command = conin.value.trim();
+            if (command.length > 0) {
+                console.log("> " + command)
+                try {
+                    evaluateInput(command);
+                } catch (e) {
+                    console.error(e.message);
+                }
+                conin.value = "";
+            }
+        }
+    };
+
+
+    function consoleVisible() {
+        return debugconsole.style.display == "block";
+    }
+
+    function toggleConsole(conin) {
+        var display = "none"
+        if (debugconsole.style.display == "none") display = "block";
+        debugconsole.style.display = display;
+        if (display == "block") {
+            conin.focus();
+        }
+    }
+
+    function evaluateExpression(expression) {
+
+        var pathSegments = [].concat(expression.split('.'));
+        if (pathSegments[0] == 'window') {
+            pathSegments.shift()
+        }
+        var currentObject = window;
+        for (var i = 0; i < pathSegments.length; i++) {
+            var pathSegment = pathSegments[i];
+            if (currentObject[pathSegment] == undefined) {
+                return false;
+            }
+            currentObject = currentObject[pathSegment];
+        }
+        console.log(JSON.stringify(currentObject));
+
+        return true;
+    }
+
+    function evaluateInput(command) {
+        try {
+            if (evaluateExpression(command)) {
+                return
+            } else {
+                eval(command);
+            }
+        } catch (e) {
+            console.error(e.message)
+        }
+    }
+
+
+    // Set us up as a listener
+    function hookIntoIPC() {
+        if (window.wails && window.wails._ && window.wails._.AddIPCListener) {
+            window.wails._.AddIPCListener(processIPCMessage);
+        } else {
+            setTimeout(hookIntoIPC, 100);
+        }
+    }
+    hookIntoIPC();
+
+    function processIPCMessage(message) {
+        console.log(message);
+        var parsedMessage;
+        try {
+            parsedMessage = JSON.parse(message);
+        } catch (e) {
+            console.error("Error in parsing IPC message: " + e.message);
+            return false;
+        }
+        var logmessage = "[IPC] "
+        switch (parsedMessage.type) {
+            case 'call':
+                logmessage += " Call: " + parsedMessage.payload.bindingName;
+                var params = "";
+                var parsedParams = JSON.parse(parsedMessage.payload.data);
+                if (parsedParams.length > 0) {
+                    params = parsedParams;
+                }
+                logmessage += "(" + params + ")";
+                break;
+            case 'log':
+                logmessage += "Log (" + parsedMessage.payload.level + "): " + parsedMessage.payload.message;
+                break;
+            default:
+                logmessage = message;
+        }
+        console.log(logmessage);
+    }
+
+    window.wailsconsole.clearConsole = function () {
+        consoleOut.innerHTML = "";
+    }
+
+    console.log = function (message) {
+        consoleOut.innerHTML = consoleOut.innerHTML + "<span style='padding-left: 5px'>" + message + '</span><br/>';
+        consoleOut.scrollTop = consoleOut.scrollHeight;
+
+    };
+    console.error = function (message) {
+        consoleOut.innerHTML = consoleOut.innerHTML + "<span style='color:red; padding-left: 5px'> Error: " + message + '</span><br/>';
+        consoleOut.scrollTop = consoleOut.scrollHeight;
+    };
+    // var h = document.getElementsByTagName("html")[0];
+    // console.log("html margin: " + h.style.marginLeft);
+    // console.log("html padding: " + h.style.paddingLeft);
+
+    // setInterval(function() { console.log("test");}, 1000);
+    // setInterval(function() { console.error("oops");}, 3000);
+    // var script = document.createElement('script'); 
+    // script.src = "https://cdnjs.cloudflare.com/ajax/libs/firebug-lite/1.4.0/firebug-lite.js#startOpened=true"; 
+    // document.body.appendChild(script); 
+
+})();

runtime/js/.eslintrc

@@ -15,10 +15,7 @@
             "error",
             "tab"
         ],
-        "linebreak-style": [
-            "error",
-            "unix"
-        ],
+        "linebreak-style": 0,
         "quotes": [
             "error",
             "single"
@@ -28,4 +25,4 @@
             "always"
         ]
     }
-}
+}

runtime/js/core/ipc.js

@@ -9,13 +9,35 @@ The lightweight framework for web-like apps
 */
 /* jshint esversion: 6 */
 
+// IPC Listeners
+var listeners = [];
+
+/**
+ * Adds a listener to IPC messages
+ * @param {function} callback 
+ */
+export function AddIPCListener(callback) {
+	listeners.push(callback);
+}
+
 /**
  * Invoke sends the given message to the backend
  *
  * @param {string} message
  */
 function Invoke(message) {
-	window.external.invoke(message);
+	if (window.wailsbridge) {
+		window.wailsbridge.websocket.send(message);
+	} else {
+		window.external.invoke(message);
+	}
+
+	// Also send to listeners
+	if (listeners.length > 0) {
+		for (var i = 0; i < listeners.length; i++) {
+			listeners[i](message);
+		}
+	}
 }
 
 /**

runtime/js/core/main.js

@@ -14,6 +14,7 @@ import { On, OnMultiple, Emit, Notify, Heartbeat, Acknowledge } from './events';
 import { NewBinding } from './bindings';
 import { Callback } from './calls';
 import { AddScript, InjectCSS } from './utils';
+import { AddIPCListener } from './ipc';
 
 // Initialise global if not already
 window.wails = window.wails || {};
@@ -27,6 +28,7 @@ var internal = {
 	AddScript,
 	InjectCSS,
 	Init,
+	AddIPCListener,
 };
 
 // Setup runtime structure
@@ -46,6 +48,16 @@ var runtime = {
 // Augment global
 Object.assign(window.wails, runtime);
 
+// Setup global error handler
+window.onerror = function (msg, url, lineNo, columnNo, error) {
+	window.wails.Log.Error('**** Caught Unhandled Error ****');
+	window.wails.Log.Error('Message: ' + msg);
+	window.wails.Log.Error('URL: ' + url);
+	window.wails.Log.Error('Line No: ' + lineNo);
+	window.wails.Log.Error('Column No: ' + columnNo);
+	window.wails.Log.Error('error: ' + error);
+};
+
 // Emit loaded event
 Emit('wails:loaded');
 

runtime/js/runtime/browser.js

@@ -32,6 +32,6 @@ function OpenFile(filename) {
 }
 
 module.exports = {
-	OpenURL,
-	OpenFile
+	OpenURL: OpenURL,
+	OpenFile: OpenFile
 };

runtime/js/runtime/events.js

@@ -80,10 +80,10 @@ function Acknowledge(eventName) {
 }
 
 module.exports = {
-	OnMultiple,
-	On,
-	Once,
-	Emit,
-	Heartbeat,
-	Acknowledge
+	OnMultiple: OnMultiple,
+	On: On,
+	Once: Once,
+	Emit: Emit,
+	Heartbeat: Heartbeat,
+	Acknowledge: Acknowledge
 };

runtime/js/runtime/log.js

@@ -62,9 +62,9 @@ function Fatal(message) {
 }
 
 module.exports = {
-	Debug,
-	Info,
-	Warning,
-	Error,
-	Fatal
+	Debug: Debug,
+	Info: Info,
+	Warning: Warning,
+	Error: Error,
+	Fatal: Fatal
 };

runtime/js/runtime/main.js

@@ -15,8 +15,8 @@ const Events = require('./events');
 const Init = require('./init');
 
 module.exports = {
-	Log,
-	Browser,
-	Events,
-	Init
+	Log: Log,
+	Browser: Browser,
+	Events: Events,
+	Init: Init
 };

runtime/js/runtime/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@wailsapp/runtime",
-  "version": "1.0.6",
+  "version": "1.0.9",
   "description": "Wails Javascript runtime library",
   "main": "main.js",
   "types": "runtime.d.ts",

scripts/build.go

@@ -0,0 +1,85 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"os/exec"
+	"path/filepath"
+)
+
+// Default target to run when none is specified
+// If not set, running mage will list available targets
+// var Default = Build
+
+/*
+# Build runtime
+echo "**** Building Runtime ****"
+cd runtime/js
+npm install
+npm run build
+cd ../..
+
+echo "**** Packing Assets ****"
+cd cmd
+mewn
+cd ..
+cd lib/renderer
+mewn
+cd ../..
+
+echo "**** Installing Wails locally ****"
+cd cmd/wails
+go install
+cd ../..
+
+echo "**** Tidying the mods! ****"
+go mod tidy
+
+echo "**** WE ARE DONE! ****"
+
+*/
+
+func runCommand(command string, args ...string) {
+	cmd := exec.Command(command, args...)
+	output, err := cmd.CombinedOutput()
+	fmt.Println(string(output))
+	if err != nil {
+		log.Println(string(output))
+		log.Fatal(err)
+	}
+	cmd.Run()
+	fmt.Println(string(output))
+}
+
+// A build step that requires additional params, or platform specific steps for example
+func main() {
+
+	dir, _ := os.Getwd()
+
+	// Build Runtime
+	fmt.Println("**** Building Runtime ****")
+	runtimeDir, _ := filepath.Abs(filepath.Join(dir, "..", "runtime", "js"))
+	os.Chdir(runtimeDir)
+	runCommand("npm", "install")
+	runCommand("npm", "run", "build")
+
+	// Pack assets
+	fmt.Println("**** Packing Assets ****")
+	rendererDir, _ := filepath.Abs(filepath.Join(dir, "..", "lib", "renderer"))
+	os.Chdir(rendererDir)
+	runCommand("mewn")
+	cmdDir, _ := filepath.Abs(filepath.Join(dir, "..", "cmd"))
+	os.Chdir(cmdDir)
+	runCommand("mewn")
+
+	// Install Wails
+	fmt.Println("**** Installing Wails locally ****")
+	execDir, _ := filepath.Abs(filepath.Join(dir, "..", "cmd", "wails"))
+	os.Chdir(execDir)
+	runCommand("go", "install")
+
+	baseDir, _ := filepath.Abs(filepath.Join(dir, ".."))
+	os.Chdir(baseDir)
+	runCommand("go", "mod", "tidy")
+}