Merge branch 'develop'

CONTRIBUTORS.md

@@ -22,4 +22,7 @@ Wails is what it is because of the time and effort given by these great people.
   * [Kris Raney](https://github.com/kraney)
   * [Jack Mordaunt](https://github.com/JackMordaunt)
   * [Michael Hipp](https://github.com/MichaelHipp)
-  * [Travis McLane](https://github.com/tmclane)
+  * [Travis McLane](https://github.com/tmclane)
+  * [Reuben Thomas-Davis](https://github.com/Rested)
+  * [Jarek](https://github.com/Jarek-SRT)
+  * [Konez2k](https://github.com/konez2k)

README.md

@@ -147,3 +147,11 @@ This project was mainly coded to the following albums:
 ## Licensing
 
 [![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgithub.com%2Fwailsapp%2Fwails.svg?type=large)](https://app.fossa.io/projects/git%2Bgithub.com%2Fwailsapp%2Fwails?ref=badge_large)
+
+## Special Thank You
+
+<p align="center" style="text-align: center">
+   A special thank you to JetBrains for donating licenses to us!<br/><br/>
+   Please click the logo to let them know your appreciation!<br/><br/>
+   <a href="https://www.jetbrains.com?from=Wails"><img src="jetbrains-grayscale.png" width="30%"></a>
+</p>

app_other.go

@@ -1,4 +1,4 @@
-// +build +linux +darwin !windows
+// +build linux darwin !windows
 
 package wails
 

cmd/fs.go

@@ -12,6 +12,7 @@ import (
 	"path"
 	"path/filepath"
 	"runtime"
+	"strings"
 
 	"github.com/leaanthony/slicer"
 )
@@ -47,6 +48,22 @@ func (fs *FSHelper) FileExists(path string) bool {
 	return fi.Mode().IsRegular()
 }
 
+// FindFile returns the first occurrence of match inside path.
+func (fs *FSHelper) FindFile(path, match string) (string, error) {
+	files, err := ioutil.ReadDir(path)
+	if err != nil {
+		return "", err
+	}
+
+	for _, f := range files {
+		if !f.IsDir() && strings.Contains(f.Name(), match) {
+			return f.Name(), nil
+		}
+	}
+
+	return "", fmt.Errorf("file not found")
+}
+
 // CreateFile creates a file at the given filename location with the contents
 // set to the given data. It will create intermediary directories if needed.
 func (fs *FSHelper) CreateFile(filename string, data []byte) error {
@@ -100,10 +117,10 @@ func (fs *FSHelper) RemoveFile(filename string) error {
 }
 
 // RemoveFiles removes the given filenames
-func (fs *FSHelper) RemoveFiles(files []string) error {
+func (fs *FSHelper) RemoveFiles(files []string, continueOnError bool) error {
 	for _, filename := range files {
 		err := os.Remove(filename)
-		if err != nil {
+		if err != nil && !continueOnError {
 			return err
 		}
 	}

cmd/helpers.go

@@ -5,12 +5,15 @@ import (
 	"io/ioutil"
 	"os"
 	"os/exec"
+	"os/user"
 	"path/filepath"
 	"runtime"
+	"strconv"
 	"strings"
 	"time"
 
 	"github.com/leaanthony/mewn"
+	"github.com/leaanthony/mewn/lib"
 	"github.com/leaanthony/slicer"
 	"github.com/leaanthony/spinner"
 )
@@ -36,34 +39,161 @@ func ValidateFrontendConfig(projectOptions *ProjectOptions) error {
 }
 
 // InstallGoDependencies will run go get in the current directory
-func InstallGoDependencies() error {
+func InstallGoDependencies(verbose bool) error {
-	depSpinner := spinner.New("Ensuring Dependencies are up to date...")
+	var depSpinner *spinner.Spinner
-	depSpinner.SetSpinSpeed(50)
+	if !verbose {
-	depSpinner.Start()
+		depSpinner = spinner.New("Ensuring Dependencies are up to date...")
-	err := NewProgramHelper().RunCommand("go get")
+		depSpinner.SetSpinSpeed(50)
+		depSpinner.Start()
+	}
+	err := NewProgramHelper(verbose).RunCommand("go get")
 	if err != nil {
-		depSpinner.Error()
+		if !verbose {
+			depSpinner.Error()
+		}
 		return err
 	}
-	depSpinner.Success()
+	if !verbose {
+		depSpinner.Success()
+	}
 	return nil
 }
 
-// BuildApplication will attempt to build the project based on the given inputs
+// EmbedAssets will embed the built frontend assets via mewn.
-func BuildApplication(binaryName string, forceRebuild bool, buildMode string, packageApp bool, projectOptions *ProjectOptions) error {
+func EmbedAssets() ([]string, error) {
+	mewnFiles := lib.GetMewnFiles([]string{}, false)
 
-	// Generate Windows assets if needed
+	referencedAssets, err := lib.GetReferencedAssets(mewnFiles)
-	if runtime.GOOS == "windows" {
+	if err != nil {
-		cleanUp := !packageApp
+		return []string{}, err
-		err := NewPackageHelper().PackageWindows(projectOptions, cleanUp)
-		if err != nil {
-			return err
-		}
 	}
 
-	// Check Mewn is installed
+	targetFiles := []string{}
-	err := CheckMewn()
+
+	for _, referencedAsset := range referencedAssets {
+		packfileData, err := lib.GeneratePackFileString(referencedAsset, false)
+		if err != nil {
+			return []string{}, err
+		}
+		targetFile := filepath.Join(referencedAsset.BaseDir, referencedAsset.PackageName+"-mewn.go")
+		targetFiles = append(targetFiles, targetFile)
+		ioutil.WriteFile(targetFile, []byte(packfileData), 0644)
+	}
+
+	return targetFiles, nil
+}
+
+func InitializeCrossCompilation(verbose bool) error {
+	// Check Docker
+	if err := CheckIfInstalled("docker"); err != nil {
+		return err
+	}
+
+	var packSpinner *spinner.Spinner
+	if !verbose {
+		packSpinner = spinner.New("Pulling wailsapp/xgo:latest docker image... (may take a while)")
+		packSpinner.SetSpinSpeed(50)
+		packSpinner.Start()
+	} else {
+		println("Pulling wailsapp/xgo:latest docker image... (may take a while)")
+	}
+
+	err := NewProgramHelper(verbose).RunCommandArray([]string{"docker",
+		"pull", "wailsapp/xgo:latest"})
+
 	if err != nil {
+		if packSpinner != nil {
+			packSpinner.Error()
+		}
+		return err
+	}
+	if packSpinner != nil {
+		packSpinner.Success()
+	}
+
+	return nil
+}
+
+// BuildDocker builds the project using the cross compiling wailsapp/xgo:latest container
+func BuildDocker(binaryName string, buildMode string, projectOptions *ProjectOptions) error {
+	var packSpinner *spinner.Spinner
+	if buildMode == BuildModeBridge {
+		return fmt.Errorf("you cant serve the application in cross-compilation")
+	}
+
+	// Check build directory
+	buildDirectory := filepath.Join(fs.Cwd(), "build")
+	if !fs.DirExists(buildDirectory) {
+		fs.MkDir(buildDirectory)
+	}
+
+	buildCommand := slicer.String()
+	userid := 1000
+	user, _ := user.Current()
+	if i, err := strconv.Atoi(user.Uid); err == nil {
+		userid = i
+	}
+	for _, arg := range []string{
+		"docker",
+		"run",
+		"--rm",
+		"-v", fmt.Sprintf("%s:/build", filepath.Join(fs.Cwd(), "build")),
+		"-v", fmt.Sprintf("%s:/source", fs.Cwd()),
+		"-e", fmt.Sprintf("LOCAL_USER_ID=%v", userid),
+		"-e", fmt.Sprintf("FLAG_LDFLAGS=%s", ldFlags(projectOptions, buildMode)),
+		"-e", "FLAG_V=false",
+		"-e", "FLAG_X=false",
+		"-e", "FLAG_RACE=false",
+		"-e", "FLAG_BUILDMODE=default",
+		"-e", "FLAG_TRIMPATH=false",
+		"-e", fmt.Sprintf("TARGETS=%s", projectOptions.Platform+"/"+projectOptions.Architecture),
+		"-e", "GOPROXY=",
+		"-e", "GO111MODULE=on",
+		"wailsapp/xgo:latest",
+		".",
+	} {
+		buildCommand.Add(arg)
+	}
+
+	compileMessage := fmt.Sprintf(
+		"Packing + Compiling project for %s/%s using docker image wailsapp/xgo:latest",
+		projectOptions.Platform, projectOptions.Architecture)
+
+	if buildMode == BuildModeDebug {
+		compileMessage += " (Debug Mode)"
+	}
+
+	if !projectOptions.Verbose {
+		packSpinner = spinner.New(compileMessage + "...")
+		packSpinner.SetSpinSpeed(50)
+		packSpinner.Start()
+	} else {
+		println(compileMessage)
+	}
+
+	err := NewProgramHelper(projectOptions.Verbose).RunCommandArray(buildCommand.AsSlice())
+	if err != nil {
+		if packSpinner != nil {
+			packSpinner.Error()
+		}
+		return err
+	}
+	if packSpinner != nil {
+		packSpinner.Success()
+	}
+
+	return nil
+}
+
+// BuildNative builds on the target platform itself.
+func BuildNative(binaryName string, forceRebuild bool, buildMode string, projectOptions *ProjectOptions) error {
+
+	// Check Mewn is installed
+	if err := CheckMewn(projectOptions.Verbose); err != nil {
+		return err
+	}
+
+	if err := CheckWindres(); err != nil {
 		return err
 	}
 
@@ -73,23 +203,27 @@ func BuildApplication(binaryName string, forceRebuild bool, buildMode string, pa
 		compileMessage += " (Debug Mode)"
 	}
 
-	packSpinner := spinner.New(compileMessage + "...")
+	var packSpinner *spinner.Spinner
-	packSpinner.SetSpinSpeed(50)
+	if !projectOptions.Verbose {
-	packSpinner.Start()
+		packSpinner = spinner.New(compileMessage + "...")
+		packSpinner.SetSpinSpeed(50)
+		packSpinner.Start()
+	} else {
+		println(compileMessage)
+	}
 
 	buildCommand := slicer.String()
-	buildCommand.Add("mewn")
+	buildCommand.Add("go")
 
+	buildCommand.Add("build")
 	if buildMode == BuildModeBridge {
 		// Ignore errors
 		buildCommand.Add("-i")
 	}
 
-	buildCommand.Add("build")
-
 	if binaryName != "" {
 		// Alter binary name based on OS
-		switch runtime.GOOS {
+		switch projectOptions.Platform {
 		case "windows":
 			if !strings.HasSuffix(binaryName, ".exe") {
 				binaryName += ".exe"
@@ -99,7 +233,7 @@ func BuildApplication(binaryName string, forceRebuild bool, buildMode string, pa
 				binaryName = strings.TrimSuffix(binaryName, ".exe")
 			}
 		}
-		buildCommand.Add("-o", binaryName)
+		buildCommand.Add("-o", filepath.Join("build", binaryName))
 	}
 
 	// If we are forcing a rebuild
@@ -107,38 +241,72 @@ func BuildApplication(binaryName string, forceRebuild bool, buildMode string, pa
 		buildCommand.Add("-a")
 	}
 
-	// Setup ld flags
+	buildCommand.AddSlice([]string{"-ldflags", ldFlags(projectOptions, buildMode)})
-	ldflags := "-w -s "
+
-	if buildMode == BuildModeDebug {
+	if projectOptions.Verbose {
-		ldflags = ""
+		fmt.Printf("Command: %v\n", buildCommand.AsSlice())
 	}
 
-	// Add windows flags
+	err := NewProgramHelper(projectOptions.Verbose).RunCommandArray(buildCommand.AsSlice())
-	if runtime.GOOS == "windows" && buildMode == BuildModeProd {
+	if err != nil {
-		ldflags += "-H windowsgui "
+		if packSpinner != nil {
-	}
+			packSpinner.Error()
-
+		}
-	ldflags += "-X github.com/wailsapp/wails.BuildMode=" + buildMode
+		return err
-
+	}
-	// If we wish to generate typescript
+	if packSpinner != nil {
-	if projectOptions.typescriptDefsFilename != "" {
+		packSpinner.Success()
-		cwd, err := os.Getwd()
+	}
-		if err != nil {
+
-			return err
+	return nil
-		}
+}
-		filename := filepath.Join(cwd, projectOptions.FrontEnd.Dir, projectOptions.typescriptDefsFilename)
+
-		ldflags += " -X github.com/wailsapp/wails/lib/binding.typescriptDefinitionFilename=" + filename
+// BuildApplication will attempt to build the project based on the given inputs
-	}
+func BuildApplication(binaryName string, forceRebuild bool, buildMode string, packageApp bool, projectOptions *ProjectOptions) error {
-
+	var err error
-	buildCommand.AddSlice([]string{"-ldflags", ldflags})
+
-	err = NewProgramHelper().RunCommandArray(buildCommand.AsSlice())
+	// embed resources
+	targetFiles, err := EmbedAssets()
+	if err != nil {
+		return err
+	}
+
+	if projectOptions.CrossCompile {
+		if err := InitializeCrossCompilation(projectOptions.Verbose); err != nil {
+			return err
+		}
+	}
+
+	helper := NewPackageHelper(projectOptions.Platform)
+
+	// Generate windows resources
+	if projectOptions.Platform == "windows" {
+		if err := helper.PackageWindows(projectOptions, false); err != nil {
+			return err
+		}
+	}
+
+	// cleanup temporary embedded assets
+	defer func() {
+		for _, filename := range targetFiles {
+			if err := os.Remove(filename); err != nil {
+				fmt.Println(err)
+			}
+		}
+		if projectOptions.Platform == "windows" {
+			helper.CleanWindows(projectOptions)
+		}
+	}()
+
+	if projectOptions.CrossCompile {
+		err = BuildDocker(binaryName, buildMode, projectOptions)
+	} else {
+		err = BuildNative(binaryName, forceRebuild, buildMode, projectOptions)
+	}
 	if err != nil {
-		packSpinner.Error()
 		return err
 	}
-	packSpinner.Success()
 
-	// packageApp
 	if packageApp {
 		err = PackageApplication(projectOptions)
 		if err != nil {
@@ -151,61 +319,76 @@ func BuildApplication(binaryName string, forceRebuild bool, buildMode string, pa
 
 // PackageApplication will attempt to package the application in a platform dependent way
 func PackageApplication(projectOptions *ProjectOptions) error {
-	// Package app
+	var packageSpinner *spinner.Spinner
-	message := "Generating .app"
+	if projectOptions.Verbose {
-	if runtime.GOOS == "windows" {
+		packageSpinner = spinner.New("Packaging application...")
-		err := CheckWindres()
+		packageSpinner.SetSpinSpeed(50)
-		if err != nil {
+		packageSpinner.Start()
-			return err
-		}
-		message = "Generating resource bundle"
 	}
-	packageSpinner := spinner.New(message)
+
-	packageSpinner.SetSpinSpeed(50)
+	err := NewPackageHelper(projectOptions.Platform).Package(projectOptions)
-	packageSpinner.Start()
-	err := NewPackageHelper().Package(projectOptions)
 	if err != nil {
-		packageSpinner.Error()
+		if packageSpinner != nil {
+			packageSpinner.Error()
+		}
 		return err
 	}
-	packageSpinner.Success()
+	if packageSpinner != nil {
+		packageSpinner.Success()
+	}
 	return nil
 }
 
 // BuildFrontend runs the given build command
-func BuildFrontend(buildCommand string) error {
+func BuildFrontend(projectOptions *ProjectOptions) error {
-	buildFESpinner := spinner.New("Building frontend...")
+	var buildFESpinner *spinner.Spinner
-	buildFESpinner.SetSpinSpeed(50)
+	if !projectOptions.Verbose {
-	buildFESpinner.Start()
+		buildFESpinner = spinner.New("Building frontend...")
-	err := NewProgramHelper().RunCommand(buildCommand)
+		buildFESpinner.SetSpinSpeed(50)
+		buildFESpinner.Start()
+	} else {
+		println("Building frontend...")
+	}
+	err := NewProgramHelper(projectOptions.Verbose).RunCommand(projectOptions.FrontEnd.Build)
 	if err != nil {
-		buildFESpinner.Error()
+		if buildFESpinner != nil {
+			buildFESpinner.Error()
+		}
 		return err
 	}
-	buildFESpinner.Success()
+	if buildFESpinner != nil {
+		buildFESpinner.Success()
+	}
 	return nil
 }
 
 // CheckMewn checks if mewn is installed and if not, attempts to fetch it
-func CheckMewn() (err error) {
+func CheckMewn(verbose bool) (err error) {
-	programHelper := NewProgramHelper()
+	programHelper := NewProgramHelper(verbose)
 	if !programHelper.IsInstalled("mewn") {
-		buildSpinner := spinner.New()
+		var buildSpinner *spinner.Spinner
-		buildSpinner.SetSpinSpeed(50)
+		if !verbose {
-		buildSpinner.Start("Installing Mewn asset packer...")
+			buildSpinner = spinner.New()
+			buildSpinner.SetSpinSpeed(50)
+			buildSpinner.Start("Installing Mewn asset packer...")
+		}
 		err := programHelper.InstallGoPackage("github.com/leaanthony/mewn/cmd/mewn")
 		if err != nil {
-			buildSpinner.Error()
+			if buildSpinner != nil {
+				buildSpinner.Error()
+			}
 			return err
 		}
-		buildSpinner.Success()
+		if buildSpinner != nil {
+			buildSpinner.Success()
+		}
 	}
 	return nil
 }
 
 // CheckWindres checks if Windres is installed and if not, aborts
 func CheckWindres() (err error) {
-	if runtime.GOOS != "windows" {
+	if runtime.GOOS != "windows" { // FIXME: Handle windows cross-compile for windows!
 		return nil
 	}
 	programHelper := NewProgramHelper()
@@ -215,6 +398,15 @@ func CheckWindres() (err error) {
 	return nil
 }
 
+// CheckIfInstalled returns if application is installed
+func CheckIfInstalled(application string) (err error) {
+	programHelper := NewProgramHelper()
+	if !programHelper.IsInstalled(application) {
+		return fmt.Errorf("%s not installed. Ensure you have installed %s correctly", application, application)
+	}
+	return nil
+}
+
 // InstallFrontendDeps attempts to install the frontend dependencies based on the given options
 func InstallFrontendDeps(projectDir string, projectOptions *ProjectOptions, forceRebuild bool, caller string) error {
 
@@ -225,9 +417,14 @@ func InstallFrontendDeps(projectDir string, projectOptions *ProjectOptions, forc
 	}
 
 	// Check if frontend deps have been updated
-	feSpinner := spinner.New("Ensuring frontend dependencies are up to date (This may take a while)")
+	var feSpinner *spinner.Spinner
-	feSpinner.SetSpinSpeed(50)
+	if !projectOptions.Verbose {
-	feSpinner.Start()
+		feSpinner = spinner.New("Ensuring frontend dependencies are up to date (This may take a while)")
+		feSpinner.SetSpinSpeed(50)
+		feSpinner.Start()
+	} else {
+		println("Ensuring frontend dependencies are up to date (This may take a while)")
+	}
 
 	requiresNPMInstall := true
 
@@ -259,7 +456,11 @@ func InstallFrontendDeps(projectDir string, projectOptions *ProjectOptions, forc
 			if savedMD5sum == packageJSONMD5 {
 				// Same - no need for reinstall
 				requiresNPMInstall = false
-				feSpinner.Success("Skipped frontend dependencies (-f to force rebuild)")
+				if feSpinner != nil {
+					feSpinner.Success("Skipped frontend dependencies (-f to force rebuild)")
+				} else {
+					println("Skipped frontend dependencies (-f to force rebuild)")
+				}
 			}
 		}
 	}
@@ -268,12 +469,16 @@ func InstallFrontendDeps(projectDir string, projectOptions *ProjectOptions, forc
 	// Different? Build
 	if requiresNPMInstall || forceRebuild {
 		// Install dependencies
-		err = NewProgramHelper().RunCommand(projectOptions.FrontEnd.Install)
+		err = NewProgramHelper(projectOptions.Verbose).RunCommand(projectOptions.FrontEnd.Install)
 		if err != nil {
-			feSpinner.Error()
+			if feSpinner != nil {
+				feSpinner.Error()
+			}
 			return err
 		}
-		feSpinner.Success()
+		if feSpinner != nil {
+			feSpinner.Success()
+		}
 
 		// Update md5sum file
 		ioutil.WriteFile(md5sumFile, []byte(packageJSONMD5), 0644)
@@ -286,7 +491,7 @@ func InstallFrontendDeps(projectDir string, projectOptions *ProjectOptions, forc
 	}
 
 	// Build frontend
-	err = BuildFrontend(projectOptions.FrontEnd.Build)
+	err = BuildFrontend(projectOptions)
 	if err != nil {
 		return err
 	}
@@ -325,7 +530,7 @@ func ServeProject(projectOptions *ProjectOptions, logger *Logger) error {
 		time.Sleep(2 * time.Second)
 		logger.Green(">>>>> To connect, you will need to run '" + projectOptions.FrontEnd.Serve + "' in the '" + projectOptions.FrontEnd.Dir + "' directory <<<<<")
 	}()
-	location, err := filepath.Abs(projectOptions.BinaryName)
+	location, err := filepath.Abs(filepath.Join("build", projectOptions.BinaryName))
 	if err != nil {
 		return err
 	}
@@ -341,3 +546,28 @@ func ServeProject(projectOptions *ProjectOptions, logger *Logger) error {
 
 	return nil
 }
+
+func ldFlags(po *ProjectOptions, buildMode string) string {
+	// Setup ld flags
+	ldflags := "-w -s "
+	if buildMode == BuildModeDebug {
+		ldflags = ""
+	}
+
+	// Add windows flags
+	if po.Platform == "windows" && buildMode == BuildModeProd {
+		ldflags += "-H windowsgui "
+	}
+
+	ldflags += "-X github.com/wailsapp/wails.BuildMode=" + buildMode
+
+	// If we wish to generate typescript
+	if po.typescriptDefsFilename != "" {
+		cwd, err := os.Getwd()
+		if err == nil {
+			filename := filepath.Join(cwd, po.FrontEnd.Dir, po.typescriptDefsFilename)
+			ldflags += " -X github.com/wailsapp/wails/lib/binding.typescriptDefinitionFilename=" + filename
+		}
+	}
+	return ldflags
+}

cmd/linux.go

@@ -53,6 +53,10 @@ const (
 	Deepin
 	// Raspbian distribution
 	Raspbian
+	// openSUSE Tumbleweed distribution
+	Tumbleweed
+	// openSUSE Leap distribution
+	Leap
 )
 
 // DistroInfo contains all the information relating to a linux distribution
@@ -147,6 +151,10 @@ func parseOsRelease(osRelease string) *DistroInfo {
 		result.Distribution = Deepin
 	case "raspbian":
 		result.Distribution = Raspbian
+	case "opensuse-tumbleweed":
+		result.Distribution = Tumbleweed
+	case "opensuse-leap":
+		result.Distribution = Leap
 	default:
 		result.Distribution = Unknown
 	}

cmd/linux_test.go

@@ -22,5 +22,25 @@ UBUNTU_CODENAME=bionic
 	if result.Distribution != Ubuntu {
 		t.Errorf("expected 'Ubuntu' ID but got '%d'", result.Distribution)
 	}
-
+}
+
+func TestTumbleweedDetection(t *testing.T) {
+	osrelease := `
+NAME="openSUSE Tumbleweed"
+# VERSION="20200414"
+ID="opensuse-tumbleweed"
+ID_LIKE="opensuse suse"
+VERSION_ID="20200414"
+PRETTY_NAME="openSUSE Tumbleweed"
+ANSI_COLOR="0;32"
+CPE_NAME="cpe:/o:opensuse:tumbleweed:20200414"
+BUG_REPORT_URL="https://bugs.opensuse.org"
+HOME_URL="https://www.opensuse.org/"
+LOGO="distributor-logo"
+`
+
+	result := parseOsRelease(osrelease)
+	if result.Distribution != Tumbleweed {
+		t.Errorf("expected 'Tumbleweed' ID but got '%d'", result.Distribution)
+	}
 }

cmd/linuxdb.yaml

@@ -223,3 +223,32 @@ distributions:
         gccversioncommand: *gccdumpfullversion
         programs: *debiandefaultprograms
         libraries: *debiandefaultlibraries
+        
+  opensuse-tumbleweed:
+    id: opensuse-tumbleweed
+    releases:
+      default:
+        version: default
+        name: openSUSE Tumbleweed
+        gccversioncommand: *gccdumpfullversion
+        programs: &opensusedefaultprograms
+          - name: gcc
+            help: Please install with `sudo zypper in gcc-c++` and try again
+          - name: pkg-config
+            help: Please install with `sudo zypper in pkgconf-pkg-config` and try again
+          - name: npm
+            help: Please install `sudo zypper in nodejs` and try again
+        libraries: &opensusedefaultlibraries
+          - name: gtk3-devel
+            help: Please install with `sudo zypper in gtk3-devel` and try again
+          - name: webkit2gtk3-devel
+            help: Please install with `sudo zypper in webkit2gtk3-devel` and try again
+  opensuse-leap:
+      id: opensuse-leap
+      releases:
+        default:
+          version: default
+          name: openSUSE Leap
+          gccversioncommand: *gccdumpfullversion
+          programs: *opensusedefaultprograms
+          libraries: *opensusedefaultlibraries

cmd/package.go

@@ -18,17 +18,19 @@ import (
 
 // PackageHelper helps with the 'wails package' command
 type PackageHelper struct {
-	fs     *FSHelper
+	platform string
-	log    *Logger
+	fs       *FSHelper
-	system *SystemHelper
+	log      *Logger
+	system   *SystemHelper
 }
 
 // NewPackageHelper creates a new PackageHelper!
-func NewPackageHelper() *PackageHelper {
+func NewPackageHelper(platform string) *PackageHelper {
 	return &PackageHelper{
-		fs:     NewFSHelper(),
+		platform: platform,
-		log:    NewLogger(),
+		fs:       NewFSHelper(),
-		system: NewSystemHelper(),
+		log:      NewLogger(),
+		system:   NewSystemHelper(),
 	}
 }
 
@@ -63,29 +65,30 @@ func defaultString(val string, defaultVal string) string {
 func (b *PackageHelper) getPackageFileBaseDir() string {
 	// Calculate template base dir
 	_, filename, _, _ := runtime.Caller(1)
-	return filepath.Join(path.Dir(filename), "packages", runtime.GOOS)
+	return filepath.Join(path.Dir(filename), "packages", b.platform)
 }
 
 // Package the application into a platform specific package
 func (b *PackageHelper) Package(po *ProjectOptions) error {
-	switch runtime.GOOS {
+	switch b.platform {
 	case "darwin":
-		// Check we have the exe
-		if !b.fs.FileExists(po.BinaryName) {
-			return fmt.Errorf("cannot bundle non-existent binary file '%s'. Please build with 'wails build' first", po.BinaryName)
-		}
 		return b.packageOSX(po)
 	case "windows":
-		return b.PackageWindows(po, false)
+		return b.PackageWindows(po, true)
 	case "linux":
-		return fmt.Errorf("linux is not supported at this time. Please see https://github.com/wailsapp/wails/issues/2")
+		return b.packageLinux(po)
 	default:
-		return fmt.Errorf("platform '%s' not supported for bundling yet", runtime.GOOS)
+		return fmt.Errorf("platform '%s' not supported for bundling yet", b.platform)
 	}
 }
 
+func (b *PackageHelper) packageLinux(po *ProjectOptions) error {
+	return nil
+}
+
 // Package the application for OSX
 func (b *PackageHelper) packageOSX(po *ProjectOptions) error {
+	build := path.Join(b.fs.Cwd(), "build")
 
 	system := NewSystemHelper()
 	config, err := system.LoadConfig()
@@ -102,18 +105,25 @@ func (b *PackageHelper) packageOSX(po *ProjectOptions) error {
 	appname := po.Name + ".app"
 
 	// Check binary exists
-	source := path.Join(b.fs.Cwd(), exe)
+	source := path.Join(build, exe)
-	if !b.fs.FileExists(source) {
+	if po.CrossCompile == true {
-		// We need to build!
+		file, err := b.fs.FindFile(build, "darwin")
-		return fmt.Errorf("Target '%s' not available. Has it been compiled yet?", exe)
+		if err != nil {
+			return err
+		}
+		source = path.Join(build, file)
 	}
 
+	if !b.fs.FileExists(source) {
+		// We need to build!
+		return fmt.Errorf("Target '%s' not available. Has it been compiled yet?", source)
+	}
 	// Remove the existing package
 	os.RemoveAll(appname)
 
-	exeDir := path.Join(b.fs.Cwd(), appname, "/Contents/MacOS")
+	exeDir := path.Join(build, appname, "/Contents/MacOS")
 	b.fs.MkDirs(exeDir, 0755)
-	resourceDir := path.Join(b.fs.Cwd(), appname, "/Contents/Resources")
+	resourceDir := path.Join(build, appname, "/Contents/Resources")
 	b.fs.MkDirs(resourceDir, 0755)
 	tmpl := template.New("infoPlist")
 	plistFile := filepath.Join(b.getPackageFileBaseDir(), "info.plist")
@@ -129,7 +139,7 @@ func (b *PackageHelper) packageOSX(po *ProjectOptions) error {
 	if err != nil {
 		return err
 	}
-	filename := path.Join(b.fs.Cwd(), appname, "Contents", "Info.plist")
+	filename := path.Join(build, appname, "Contents", "Info.plist")
 	err = ioutil.WriteFile(filename, tpl.Bytes(), 0644)
 	if err != nil {
 		return err
@@ -150,12 +160,25 @@ func (b *PackageHelper) packageOSX(po *ProjectOptions) error {
 	return err
 }
 
+// CleanWindows removes any windows related files found in the directory
+func (b *PackageHelper) CleanWindows(po *ProjectOptions) {
+	pdir := b.fs.Cwd()
+	basename := strings.TrimSuffix(po.BinaryName, ".exe")
+	exts := []string{".ico", ".exe.manifest", ".rc", "-res.syso"}
+	rsrcs := []string{}
+	for _, ext := range exts {
+		rsrcs = append(rsrcs, filepath.Join(pdir, basename+ext))
+	}
+	b.fs.RemoveFiles(rsrcs, true)
+}
+
 // PackageWindows packages the application for windows platforms
 func (b *PackageHelper) PackageWindows(po *ProjectOptions, cleanUp bool) error {
+	outputDir := b.fs.Cwd()
 	basename := strings.TrimSuffix(po.BinaryName, ".exe")
 
 	// Copy icon
-	tgtIconFile := filepath.Join(b.fs.Cwd(), basename+".ico")
+	tgtIconFile := filepath.Join(outputDir, basename+".ico")
 	if !b.fs.FileExists(tgtIconFile) {
 		srcIconfile := filepath.Join(b.getPackageFileBaseDir(), "wails.ico")
 		err := b.fs.CopyFile(srcIconfile, tgtIconFile)
@@ -165,7 +188,7 @@ func (b *PackageHelper) PackageWindows(po *ProjectOptions, cleanUp bool) error {
 	}
 
 	// Copy manifest
-	tgtManifestFile := filepath.Join(b.fs.Cwd(), basename+".exe.manifest")
+	tgtManifestFile := filepath.Join(outputDir, basename+".exe.manifest")
 	if !b.fs.FileExists(tgtManifestFile) {
 		srcManifestfile := filepath.Join(b.getPackageFileBaseDir(), "wails.exe.manifest")
 		err := b.fs.CopyFile(srcManifestfile, tgtManifestFile)
@@ -175,7 +198,7 @@ func (b *PackageHelper) PackageWindows(po *ProjectOptions, cleanUp bool) error {
 	}
 
 	// Copy rc file
-	tgtRCFile := filepath.Join(b.fs.Cwd(), basename+".rc")
+	tgtRCFile := filepath.Join(outputDir, basename+".rc")
 	if !b.fs.FileExists(tgtRCFile) {
 		srcRCfile := filepath.Join(b.getPackageFileBaseDir(), "wails.rc")
 		rcfilebytes, err := ioutil.ReadFile(srcRCfile)
@@ -190,29 +213,33 @@ func (b *PackageHelper) PackageWindows(po *ProjectOptions, cleanUp bool) error {
 	}
 
 	// Build syso
-	sysofile := filepath.Join(b.fs.Cwd(), basename+"-res.syso")
+	sysofile := filepath.Join(outputDir, basename+"-res.syso")
 
-	batfile, err := fs.LocalDir(".")
+	// cross-compile
-	if err != nil {
+	if b.platform != runtime.GOOS {
-		return err
+		args := []string{
-	}
+			"docker", "run", "--rm",
+			"-v", outputDir + ":/build",
+			"--entrypoint", "/bin/sh",
+			"wailsapp/xgo:latest",
+			"-c", "/usr/bin/x86_64-w64-mingw32-windres -o /build/" + basename + "-res.syso /build/" + basename + ".rc",
+		}
+		if err := NewProgramHelper().RunCommandArray(args); err != nil {
+			return err
+		}
+	} else {
+		batfile, err := fs.LocalDir(".")
+		if err != nil {
+			return err
+		}
 
-	windresBatFile := filepath.Join(batfile.fullPath, "windres.bat")
+		windresBatFile := filepath.Join(batfile.fullPath, "windres.bat")
-	windresCommand := []string{windresBatFile, sysofile, tgtRCFile}
+		windresCommand := []string{windresBatFile, sysofile, tgtRCFile}
-	err = NewProgramHelper().RunCommandArray(windresCommand)
+		err = NewProgramHelper().RunCommandArray(windresCommand)
-	if err != nil {
-		return err
-	}
-
-	// clean up
-	if cleanUp {
-		filesToDelete := []string{tgtIconFile, tgtManifestFile, tgtRCFile, sysofile}
-		err := b.fs.RemoveFiles(filesToDelete)
 		if err != nil {
 			return err
 		}
 	}
-
 	return nil
 }
 

cmd/packages/darwin/info.plist

@@ -1,5 +1,6 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0"><dict>
+	<key>CFBundlePackageType</key><string>APPL</string>
 	<key>CFBundleName</key><string>{{.Title}}</string>
 	<key>CFBundleExecutable</key><string>{{.Exe}}</string>
 	<key>CFBundleIdentifier</key><string>{{.PackageID}}</string>

cmd/program.go

@@ -3,6 +3,7 @@ package cmd
 import (
 	"bytes"
 	"fmt"
+	"os"
 	"os/exec"
 	"path/filepath"
 	"strings"
@@ -11,14 +12,22 @@ import (
 
 // ProgramHelper - Utility functions around installed applications
 type ProgramHelper struct {
-	shell *ShellHelper
+	shell   *ShellHelper
+	verbose bool
 }
 
 // NewProgramHelper - Creates a new ProgramHelper
-func NewProgramHelper() *ProgramHelper {
+func NewProgramHelper(verbose ...bool) *ProgramHelper {
-	return &ProgramHelper{
+	result := &ProgramHelper{
 		shell: NewShellHelper(),
 	}
+	if len(verbose) > 0 {
+		result.verbose = verbose[0]
+		if result.verbose {
+			result.shell.SetVerbose()
+		}
+	}
+	return result
 }
 
 // IsInstalled tries to determine if the given binary name is installed
@@ -29,8 +38,9 @@ func (p *ProgramHelper) IsInstalled(programName string) bool {
 
 // Program - A struct to define an installed application/binary
 type Program struct {
-	Name string `json:"name"`
+	Name    string `json:"name"`
-	Path string `json:"path"`
+	Path    string `json:"path"`
+	verbose bool
 }
 
 // FindProgram attempts to find the given program on the system.FindProgram
@@ -45,8 +55,9 @@ func (p *ProgramHelper) FindProgram(programName string) *Program {
 		return nil
 	}
 	return &Program{
-		Name: programName,
+		Name:    programName,
-		Path: path,
+		Path:    path,
+		verbose: p.verbose,
 	}
 }
 
@@ -63,12 +74,18 @@ func (p *Program) Run(vars ...string) (stdout, stderr string, exitCode int, err
 		return "", "", 1, err
 	}
 	cmd := exec.Command(command, vars...)
-	var stdo, stde bytes.Buffer
+	if !p.verbose {
-	cmd.Stdout = &stdo
+		var stdo, stde bytes.Buffer
-	cmd.Stderr = &stde
+		cmd.Stdout = &stdo
-	err = cmd.Run()
+		cmd.Stderr = &stde
-	stdout = string(stdo.Bytes())
+		err = cmd.Run()
-	stderr = string(stde.Bytes())
+		stdout = string(stdo.Bytes())
+		stderr = string(stde.Bytes())
+	} else {
+		cmd.Stdout = os.Stdout
+		cmd.Stderr = os.Stderr
+		err = cmd.Run()
+	}
 
 	// https://stackoverflow.com/questions/10385551/get-exit-code-go
 	if err != nil {
@@ -121,11 +138,11 @@ func (p *ProgramHelper) RunCommand(command string) error {
 
 // RunCommandArray runs the command specified in the array
 func (p *ProgramHelper) RunCommandArray(args []string, dir ...string) error {
-	program := args[0]
+	programCommand := args[0]
 	// TODO: Run FindProgram here and get the full path to the exe
-	program, err := exec.LookPath(program)
+	program, err := exec.LookPath(programCommand)
 	if err != nil {
-		fmt.Printf("ERROR: Looks like '%s' isn't installed. Please install and try again.", program)
+		fmt.Printf("ERROR: Looks like '%s' isn't installed. Please install and try again.", programCommand)
 		return err
 	}
 

cmd/project.go

@@ -6,7 +6,6 @@ import (
 	"io/ioutil"
 	"os"
 	"path/filepath"
-	"runtime"
 	"sort"
 	"strings"
 
@@ -158,6 +157,10 @@ type ProjectOptions struct {
 	selectedTemplate       *TemplateDetails
 	WailsVersion           string
 	typescriptDefsFilename string
+	Verbose                bool `json:"-"`
+	CrossCompile           bool
+	Platform               string
+	Architecture           string
 }
 
 // Defaults sets the default project template
@@ -332,11 +335,6 @@ func processBinaryName(po *ProjectOptions) {
 	if po.BinaryName == "" {
 		var binaryNameComputed = computeBinaryName(po.Name)
 		po.BinaryName = Prompt("The output binary name", binaryNameComputed)
-		if runtime.GOOS == "windows" {
-			if !strings.HasSuffix(po.BinaryName, ".exe") {
-				po.BinaryName += ".exe"
-			}
-		}
 	}
 	fmt.Println("Output binary Name: " + po.BinaryName)
 }

cmd/shell.go

@@ -8,6 +8,7 @@ import (
 
 // ShellHelper helps with Shell commands
 type ShellHelper struct {
+	verbose bool
 }
 
 // NewShellHelper creates a new ShellHelper!
@@ -15,16 +16,27 @@ func NewShellHelper() *ShellHelper {
 	return &ShellHelper{}
 }
 
+// SetVerbose sets the verbose flag
+func (sh *ShellHelper) SetVerbose() {
+	sh.verbose = true
+}
+
 // Run the given command
 func (sh *ShellHelper) Run(command string, vars ...string) (stdout, stderr string, err error) {
 	cmd := exec.Command(command, vars...)
 	cmd.Env = append(os.Environ(), "GO111MODULE=on")
-	var stdo, stde bytes.Buffer
+	if !sh.verbose {
-	cmd.Stdout = &stdo
+		var stdo, stde bytes.Buffer
-	cmd.Stderr = &stde
+		cmd.Stdout = &stdo
-	err = cmd.Run()
+		cmd.Stderr = &stde
-	stdout = string(stdo.Bytes())
+		err = cmd.Run()
-	stderr = string(stde.Bytes())
+		stdout = string(stdo.Bytes())
+		stderr = string(stde.Bytes())
+	} else {
+		cmd.Stdout = os.Stdout
+		cmd.Stderr = os.Stderr
+		err = cmd.Run()
+	}
 	return
 }
 
@@ -33,11 +45,17 @@ func (sh *ShellHelper) RunInDirectory(dir string, command string, vars ...string
 	cmd := exec.Command(command, vars...)
 	cmd.Dir = dir
 	cmd.Env = append(os.Environ(), "GO111MODULE=on")
-	var stdo, stde bytes.Buffer
+	if !sh.verbose {
-	cmd.Stdout = &stdo
+		var stdo, stde bytes.Buffer
-	cmd.Stderr = &stde
+		cmd.Stdout = &stdo
-	err = cmd.Run()
+		cmd.Stderr = &stde
-	stdout = string(stdo.Bytes())
+		err = cmd.Run()
-	stderr = string(stde.Bytes())
+		stdout = string(stdo.Bytes())
+		stderr = string(stde.Bytes())
+	} else {
+		cmd.Stdout = os.Stdout
+		cmd.Stderr = os.Stderr
+		err = cmd.Run()
+	}
 	return
 }

cmd/system.go

@@ -278,7 +278,7 @@ func CheckDependencies(logger *Logger) (bool, error) {
 			libraryChecker = DpkgInstalled
 		case Arch, ArcoLinux, Manjaro, ManjaroARM:
 			libraryChecker = PacmanInstalled
-		case CentOS, Fedora:
+		case CentOS, Fedora, Tumbleweed, Leap:
 			libraryChecker = RpmInstalled
 		case Gentoo:
 			libraryChecker = EqueryInstalled

cmd/templates/create-react-app/frontend/package.json.template

@@ -4,12 +4,12 @@
   "version": "0.1.0",
   "private": true,
   "dependencies": {
-    "core-js": "^3.1.4",
+    "core-js": "^3.6.4",
-    "react": "^16.8.6",
+    "react": "^16.13.0",
-    "react-dom": "^16.8.6",
+    "react-dom": "^16.13.0",
     "wails-react-scripts": "3.0.1-2",
-    "react-modal": "3.8.1",
+    "react-modal": "3.11.2",
-    "@wailsapp/runtime": "^1.0.0"
+    "@wailsapp/runtime": "^1.0.10"
   },
   "scripts": {
     "start": "react-scripts start",

cmd/templates/vuebasic/frontend/package.json.template

@@ -8,21 +8,21 @@
     "lint": "vue-cli-service lint"
   },
   "dependencies": {
-    "core-js": "^3.6.1",
+    "core-js": "^3.6.4",
     "regenerator-runtime": "^0.13.3",
-    "vue": "^2.5.22",
+    "vue": "^2.6.11",
-    "@wailsapp/runtime": "^1.0.0"
+    "@wailsapp/runtime": "^1.0.10"
   },
   "devDependencies": {
-    "@vue/cli-plugin-babel": "^3.4.0",
+    "@vue/cli-plugin-babel": "^4.2.3",
-    "@vue/cli-plugin-eslint": "^3.4.0",
+    "@vue/cli-plugin-eslint": "^4.2.3",
-    "@vue/cli-service": "^3.4.0",
+    "@vue/cli-service": "^4.2.3",
-    "babel-eslint": "^10.0.1",
+    "babel-eslint": "^10.1.0",
-    "eslint": "^5.8.0",
+    "eslint": "^6.8.0",
-    "eslint-plugin-vue": "^5.0.0",
+    "eslint-plugin-vue": "^6.2.1",
     "eventsource-polyfill": "^0.9.6",
-    "vue-template-compiler": "^2.5.21",
+    "vue-template-compiler": "^2.6.11",
-    "webpack-hot-middleware": "^2.24.3"
+    "webpack-hot-middleware": "^2.25.0"
   },
   "eslintConfig": {
     "root": true,

cmd/templates/vuetify-basic/frontend/package.json.template

@@ -7,24 +7,24 @@
     "build": "vue-cli-service build",
     "lint": "vue-cli-service lint"
   },
-  "dependencies": {
+"dependencies": {
-    "core-js": "^3.6.1",
+    "core-js": "^3.6.4",
     "regenerator-runtime": "^0.13.3",
     "material-design-icons-iconfont": "^5.0.1",
     "vue": "^2.5.22",
     "vuetify": "^1.5.14",
-    "@wailsapp/runtime": "^1.0.0"
+    "@wailsapp/runtime": "^1.0.10"
   },
   "devDependencies": {
-    "@vue/cli-plugin-babel": "^3.4.0",
+    "@vue/cli-plugin-babel": "^4.2.3",
-    "@vue/cli-plugin-eslint": "^3.4.0",
+    "@vue/cli-plugin-eslint": "^4.2.3",
-    "@vue/cli-service": "^3.4.0",
+    "@vue/cli-service": "^4.2.3",
-    "babel-eslint": "^10.0.1",
+    "babel-eslint": "^10.1.0",
-    "eslint": "^5.8.0",
+    "eslint": "^6.8.0",
-    "eslint-plugin-vue": "^5.0.0",
+    "eslint-plugin-vue": "^6.2.1",
     "eventsource-polyfill": "^0.9.6",
-    "vue-template-compiler": "^2.5.21",
+    "vue-template-compiler": "^2.6.11",
-    "webpack-hot-middleware": "^2.24.3"
+    "webpack-hot-middleware": "^2.25.0"
   },
   "eslintConfig": {
     "root": true,

cmd/templates/vuetify2-basic/frontend/package.json.template

@@ -8,23 +8,23 @@
     "lint": "vue-cli-service lint"
   },
   "dependencies": {
-    "core-js": "^3.6.1",
+    "core-js": "^3.6.4",
     "regenerator-runtime": "^0.13.3",
-    "vue": "^2.5.22",
+    "vue": "^2.6.11",
-    "vuetify": "^2.0.15",
+    "vuetify": "^2.2.15",
-    "@wailsapp/runtime": "^1.0.0"
+    "@wailsapp/runtime": "^1.0.10"
   },
   "devDependencies": {
-    "@mdi/font": "^4.3.95",
+    "@mdi/font": "^4.9.95",
-    "@vue/cli-plugin-babel": "^3.4.0",
+    "@vue/cli-plugin-babel": "^4.2.3",
-    "@vue/cli-plugin-eslint": "^3.4.0",
+    "@vue/cli-plugin-eslint": "^4.2.3",
-    "@vue/cli-service": "^3.4.0",
+    "@vue/cli-service": "^4.2.3",
-    "babel-eslint": "^10.0.1",
+    "babel-eslint": "^10.1.0",
-    "eslint": "^5.8.0",
+    "eslint": "^6.8.0",
-    "eslint-plugin-vue": "^5.0.0",
+    "eslint-plugin-vue": "^6.2.1",
     "eventsource-polyfill": "^0.9.6",
-    "vue-template-compiler": "^2.5.21",
+    "vue-template-compiler": "^2.6.11",
-    "webpack-hot-middleware": "^2.24.3"
+    "webpack-hot-middleware": "^2.25.0"
   },
   "eslintConfig": {
     "root": true,

cmd/version.go

@@ -1,4 +1,4 @@
 package cmd
 
 // Version - Wails version
-const Version = "v1.0.2"
+const Version = "v1.5.0"

cmd/wails/0_setup.go

@@ -40,7 +40,7 @@ Create your first project by running 'wails init'.`
 		}
 
 		// Check Mewn
-		err = cmd.CheckMewn()
+		err = cmd.CheckMewn(false)
 		if err != nil {
 			return err
 		}

cmd/wails/4_build.go

@@ -3,17 +3,32 @@ package main
 import (
 	"fmt"
 	"os"
+	"runtime"
+	"strings"
 
 	"github.com/leaanthony/spinner"
 	"github.com/wailsapp/wails/cmd"
 )
 
+// getSupportedPlatforms returns a slice of platform/architecture
+// targets that are buildable using the cross-platform 'x' option.
+func getSupportedPlatforms() []string {
+	return []string{
+		"darwin/amd64",
+		"linux/amd64",
+		"linux/arm-7",
+		"windows/amd64",
+	}
+}
+
 func init() {
 
 	var packageApp = false
 	var forceRebuild = false
 	var debugMode = false
 	var typescriptFilename = ""
+	var verbose = false
+	var platform = ""
 
 	buildSpinner := spinner.NewSpinner()
 	buildSpinner.SetSpinSpeed(50)
@@ -24,8 +39,17 @@ func init() {
 		BoolFlag("p", "Package application on successful build", &packageApp).
 		BoolFlag("f", "Force rebuild of application components", &forceRebuild).
 		BoolFlag("d", "Build in Debug mode", &debugMode).
+		BoolFlag("verbose", "Verbose output", &verbose).
 		StringFlag("t", "Generate Typescript definitions to given file (at runtime)", &typescriptFilename)
 
+	var b strings.Builder
+	for _, plat := range getSupportedPlatforms() {
+		fmt.Fprintf(&b, " - %s\n", plat)
+	}
+	initCmd.StringFlag("x",
+		fmt.Sprintf("Cross-compile application to specified platform via xgo\n%s", b.String()),
+		&platform)
+
 	initCmd.Action(func() error {
 
 		message := "Building Application"
@@ -40,6 +64,7 @@ func init() {
 
 		// Project options
 		projectOptions := &cmd.ProjectOptions{}
+		projectOptions.Verbose = verbose
 
 		// Check we are in project directory
 		// Check project.json loads correctly
@@ -49,6 +74,25 @@ func init() {
 			return fmt.Errorf("Unable to find 'project.json'. Please check you are in a Wails project directory")
 		}
 
+		// Set cross-compile
+		projectOptions.Platform = runtime.GOOS
+		if len(platform) > 0 {
+			supported := false
+			for _, plat := range getSupportedPlatforms() {
+				if plat == platform {
+					supported = true
+				}
+			}
+			if !supported {
+				return fmt.Errorf("Unsupported platform '%s' specified.\nPlease run `wails build -h` to see the supported platform/architecture options.", platform)
+			}
+
+			projectOptions.CrossCompile = true
+			plat := strings.Split(platform, "/")
+			projectOptions.Platform = plat[0]
+			projectOptions.Architecture = plat[1]
+		}
+
 		// Validate config
 		// Check if we have a frontend
 		err = cmd.ValidateFrontendConfig(projectOptions)
@@ -90,7 +134,7 @@ func init() {
 		}
 
 		// Install dependencies
-		err = cmd.InstallGoDependencies()
+		err = cmd.InstallGoDependencies(projectOptions.Verbose)
 		if err != nil {
 			return err
 		}

cmd/wails/6_serve.go

@@ -10,12 +10,14 @@ import (
 func init() {
 
 	var forceRebuild = false
+	var verbose = false
 	buildSpinner := spinner.NewSpinner()
 	buildSpinner.SetSpinSpeed(50)
 
 	commandDescription := `This command builds then serves your application in bridge mode. Useful for developing your app in a browser.`
 	initCmd := app.Command("serve", "Run your Wails project in bridge mode").
 		LongDescription(commandDescription).
+		BoolFlag("verbose", "Verbose output", &verbose).
 		BoolFlag("f", "Force rebuild of application components", &forceRebuild)
 
 	initCmd.Action(func() error {
@@ -25,13 +27,14 @@ func init() {
 		fmt.Println()
 
 		// Check Mewn is installed
-		err := cmd.CheckMewn()
+		err := cmd.CheckMewn(verbose)
 		if err != nil {
 			return err
 		}
 
 		// Project options
 		projectOptions := &cmd.ProjectOptions{}
+		projectOptions.Verbose = verbose
 
 		// Check we are in project directory
 		// Check project.json loads correctly
@@ -51,7 +54,7 @@ func init() {
 		}
 
 		// Install dependencies
-		err = cmd.InstallGoDependencies()
+		err = cmd.InstallGoDependencies(projectOptions.Verbose)
 		if err != nil {
 			return err
 		}

go.mod

@@ -3,9 +3,6 @@ module github.com/wailsapp/wails
 require (
 	github.com/Masterminds/semver v1.4.2
 	github.com/abadojack/whatlanggo v1.0.1
-	github.com/dchest/cssmin v0.0.0-20151210170030-fb8d9b44afdc // indirect
-	github.com/dchest/htmlmin v0.0.0-20150526090704-e254725e81ac
-	github.com/dchest/jsmin v0.0.0-20160823214000-faeced883947 // indirect
 	github.com/fatih/color v1.7.0
 	github.com/go-playground/colors v1.2.0
 	github.com/gorilla/websocket v1.4.0

go.sum

@@ -7,12 +7,6 @@ github.com/abadojack/whatlanggo v1.0.1/go.mod h1:66WiQbSbJBIlOZMsvbKe5m6pzQovxCH
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/dchest/cssmin v0.0.0-20151210170030-fb8d9b44afdc h1:VBS1z48BFEe00G81z8MKOtwX7f/ISkuH38NscT8iVPw=
-github.com/dchest/cssmin v0.0.0-20151210170030-fb8d9b44afdc/go.mod h1:ABJPuor7YlcsHmvJ1QxX38e2NcufLY3hm0yXv+cy9sI=
-github.com/dchest/htmlmin v0.0.0-20150526090704-e254725e81ac h1:DpMwFluHWoZpV9ex5XjkWO4HyCz5HLVI8XbHw0FhHi4=
-github.com/dchest/htmlmin v0.0.0-20150526090704-e254725e81ac/go.mod h1:XsAE+b4rOZc8gvgsgF+wU75mNBvBcyED1wdd9PBLlJ0=
-github.com/dchest/jsmin v0.0.0-20160823214000-faeced883947 h1:Fm10/KNuoAyBm2P5P5H91Xy21hGcZnBdjR+cMdytv1M=
-github.com/dchest/jsmin v0.0.0-20160823214000-faeced883947/go.mod h1:Dv9D0NUlAsaQcGQZa5kc5mqR9ua72SmA8VXi4cd+cBw=
 github.com/fatih/color v1.7.0 h1:DkWD4oS2D8LGGgTQ6IvwJJXSL5Vp2ffcQg58nFV38Ys=
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
 github.com/go-playground/colors v1.2.0 h1:0EdjTXKrr2g1L/LQTYtIqabeHpZuGZz1U4osS1T8+5M=
@@ -34,8 +28,6 @@ github.com/kr/pty v1.1.1 h1:VkoXIwSboBpnk99O/KFauAEILuNHv5DVFKZMBN/gUgw=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/leaanthony/mewn v0.10.7 h1:jCcNJyIUOpwj+I5SuATvCugDjHkoo+j6ubEOxxrxmPA=
 github.com/leaanthony/mewn v0.10.7/go.mod h1:CRkTx8unLiSSilu/Sd7i1LwrdaAL+3eQ3ses99qGMEQ=
-github.com/leaanthony/slicer v1.3.2 h1:kGWWFoyaY5WzwGrUsHXMmGbssuYthP4qYBNlkNpNAB8=
-github.com/leaanthony/slicer v1.3.2/go.mod h1:VMB/HGvr3uR3MRpFWHWAm0w+DHQLzPHYe2pKfpFlQIQ=
 github.com/leaanthony/slicer v1.4.0 h1:Q9u4w+UBU4WHjXnEDdz+eRLMKF/rnyosRBiqULnc1J8=
 github.com/leaanthony/slicer v1.4.0/go.mod h1:FwrApmf8gOrpzEWM2J/9Lh79tyq8KTX5AzRtwV7m4AY=
 github.com/leaanthony/spinner v0.5.3 h1:IMTvgdQCec5QA4qRy0wil4XsRP+QcG1OwLWVK/LPZ5Y=

lib/renderer/bridge/bridge.go

@@ -42,12 +42,12 @@ type Bridge struct {
 	server *http.Server
 
 	lock     sync.Mutex
-	sessions map[string]session
+	sessions map[string]*session
 }
 
 // Initialise the Bridge Renderer
 func (h *Bridge) Initialise(appConfig interfaces.AppConfig, ipcManager interfaces.IPCManager, eventManager interfaces.EventManager) error {
-	h.sessions = map[string]session{}
+	h.sessions = map[string]*session{}
 	h.ipcManager = ipcManager
 	h.appConfig = appConfig
 	h.eventManager = eventManager
@@ -70,13 +70,11 @@ func (h *Bridge) wsBridgeHandler(w http.ResponseWriter, r *http.Request) {
 }
 
 func (h *Bridge) startSession(conn *websocket.Conn) {
-	s := session{
+	s := newSession(conn,
-		conn:         conn,
+		h.bindingCache,
-		bindingCache: h.bindingCache,
+		h.ipcManager,
-		ipc:          h.ipcManager,
+		logger.NewCustomLogger("BridgeSession"),
-		log:          h.log,
+		h.eventManager)
-		eventManager: h.eventManager,
-	}
 
 	conn.SetCloseHandler(func(int, string) error {
 		h.log.Infof("Connection dropped [%s].", s.Identifier())
@@ -160,7 +158,7 @@ func (h *Bridge) NotifyEvent(event *messages.EventData) error {
 	}
 
 	message := fmt.Sprintf("window.wails._.Notify('%s','%s')", event.Name, data)
-	dead := []session{}
+	dead := []*session{}
 	for _, session := range h.sessions {
 		err := session.evalJS(message, notifyMessage)
 		if err != nil {
@@ -207,6 +205,9 @@ func (h *Bridge) SetTitle(title string) {
 // for the Renderer interface
 func (h *Bridge) Close() {
 	h.log.Debug("Shutting down")
+	for _, session := range h.sessions {
+		session.Shutdown()
+	}
 	err := h.server.Close()
 	if err != nil {
 		h.log.Errorf(err.Error())

lib/renderer/bridge/session.go

@@ -1,7 +1,8 @@
 package renderer
 
 import (
-	"sync"
+	"time"
+	"unsafe"
 
 	"github.com/gorilla/websocket"
 	"github.com/leaanthony/mewn"
@@ -20,7 +21,22 @@ type session struct {
 	ipc          interfaces.IPCManager
 
 	// Mutex for writing to the socket
-	lock sync.Mutex
+	shutdown  chan bool
+	writeChan chan []byte
+
+	done bool
+}
+
+func newSession(conn *websocket.Conn, bindingCache []string, ipc interfaces.IPCManager, logger *logger.CustomLogger, eventMgr interfaces.EventManager) *session {
+	return &session{
+		conn:         conn,
+		bindingCache: bindingCache,
+		ipc:          ipc,
+		log:          logger,
+		eventManager: eventMgr,
+		shutdown:     make(chan bool),
+		writeChan:    make(chan []byte, 100),
+	}
 }
 
 // Identifier returns a string identifier for the remote connection.
@@ -33,19 +49,15 @@ func (s *session) Identifier() string {
 }
 
 func (s *session) sendMessage(msg string) error {
-	s.lock.Lock()
+	if !s.done {
-	defer s.lock.Unlock()
+		s.writeChan <- *(*[]byte)(unsafe.Pointer(&msg))
-
-	if err := s.conn.WriteMessage(websocket.TextMessage, []byte(msg)); err != nil {
-		s.log.Debug(err.Error())
-		return err
 	}
-
 	return nil
 }
 
 func (s *session) start(firstSession bool) {
 	s.log.Infof("Connected to frontend.")
+	go s.writePump()
 
 	wailsRuntime := mewn.String("../../runtime/assets/wails.js")
 	s.evalJS(wailsRuntime, wailsRuntimeMessage)
@@ -74,6 +86,10 @@ func (s *session) start(firstSession bool) {
 		s.log.Debugf("Got message: %#v\n", string(buffer))
 
 		s.ipc.Dispatch(string(buffer), s.Callback)
+
+		if s.done {
+			break
+		}
 	}
 }
 
@@ -83,8 +99,38 @@ func (s *session) Callback(data string) error {
 }
 
 func (s *session) evalJS(js string, mtype messageType) error {
-
 	// Prepend message type to message
 	return s.sendMessage(mtype.toString() + js)
-
+}
+
+// Shutdown
+func (s *session) Shutdown() {
+	s.done = true
+	s.shutdown <- true
+	s.log.Debugf("session %v exit", s.Identifier())
+}
+
+// writePump pulls messages from the writeChan and sends them to the client
+// since it uses a channel to read the messages the socket is protected without locks
+func (s *session) writePump() {
+	s.log.Debugf("Session %v - writePump start", s.Identifier())
+	for {
+		select {
+		case msg, ok := <-s.writeChan:
+			s.conn.SetWriteDeadline(time.Now().Add(1 * time.Second))
+			if !ok {
+				s.log.Debug("writeChan was closed!")
+				s.conn.WriteMessage(websocket.CloseMessage, []byte{})
+				return
+			}
+
+			if err := s.conn.WriteMessage(websocket.TextMessage, msg); err != nil {
+				s.log.Debug(err.Error())
+				return
+			}
+		case <-s.shutdown:
+			break
+		}
+	}
+	s.log.Debug("writePump exiting...")
 }

runtime/js/runtime/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@wailsapp/runtime",
-  "version": "1.0.10",
+  "version": "1.0.11",
   "description": "Wails Javascript runtime library",
   "main": "main.js",
   "types": "runtime.d.ts",
@@ -25,4 +25,4 @@
   "devDependencies": {
     "dts-gen": "^0.5.8"
   }
-}
+}

runtime/js/runtime/runtime.d.ts

@@ -6,12 +6,12 @@ declare const wailsapp__runtime: {
         OpenURL(url: string): Promise<any>;
     };
     Events: {
-        Acknowledge(eventName: string): void; 
+        Acknowledge(eventName: string): void;
-        Emit(eventName: string): void;
+        Emit(eventName: string, data?: any): void;
-        Heartbeat(eventName: string, timeInMilliseconds: number, callback: () => void): void;
+        Heartbeat(eventName: string, timeInMilliseconds: number, callback: (data?: any) => void): void;
-        On(eventName: string, callback: () => void): void;
+        On(eventName: string, callback: (data?: any) => void): void;
-        OnMultiple(eventName: string, callback: () => void, maxCallbacks: number): void;
+        OnMultiple(eventName: string, callback: (data?: any) => void, maxCallbacks: number): void;
-        Once(eventName: string, callback: () => void): void;
+        Once(eventName: string, callback: (data?: any) => void): void;
     };
     Init(callback: () => void): void;
     Log: {

scripts/build.sh

@@ -1,5 +1,13 @@
 #!/usr/bin/env bash
 
+echo "**** Checking if Wails passes unit tests ****"
+if ! go test ./...
+then
+    echo ""
+    echo "ERROR: Unit tests failed!"
+    exit 1;
+fi
+
 # Build runtime
 echo "**** Building Runtime ****"
 cd runtime/js
@@ -15,9 +23,23 @@ cd lib/renderer
 mewn
 cd ../..
 
-echo "**** Installing Wails locally ****"
+
 cd cmd/wails
-go install
+echo "**** Checking if Wails compiles ****"
+if ! go build .
+then
+    echo ""
+    echo "ERROR: Build failed!"
+    exit 1;
+fi
+
+echo "**** Installing Wails locally ****"
+if ! go install
+then
+    echo ""
+    echo "ERROR: Install failed!"
+    exit 1;
+fi
 cd ../..
 
 echo "**** Tidying the mods! ****"