Significant support for Windows builds

cmd/helpers.go

@@ -76,6 +76,12 @@ func BuildApplication(binaryName string, forceRebuild bool, buildMode string) er
 	if buildMode == BuildModeDebug {
 		ldflags = ""
 	}
+
+	// Add windows flags
+	if runtime.GOOS == "windows" {
+		ldflags += "-H windowsgui "
+	}
+
 	ldflags += "-X github.com/wailsapp/wails.BuildMode=" + buildMode
 
 	buildCommand.AddSlice([]string{"-ldflags", ldflags})
@@ -91,7 +97,11 @@ func BuildApplication(binaryName string, forceRebuild bool, buildMode string) er
 // PackageApplication will attempt to package the application in a pltform dependent way
 func PackageApplication(projectOptions *ProjectOptions) error {
 	// Package app
-	packageSpinner := spinner.New("Packaging Application")
+	message := "Generating .app"
+	if runtime.GOOS == "windows" {
+		message = "Generating resource bundle"
+	}
+	packageSpinner := spinner.New(message)
 	packageSpinner.SetSpinSpeed(50)
 	packageSpinner.Start()
 	err := NewPackageHelper().Package(projectOptions)
@@ -134,6 +144,18 @@ func CheckMewn() (err error) {
 	return nil
 }
 
+// CheckWindres checks if Windres is installed and if not, aborts
+func CheckWindres() (err error) {
+	if runtime.GOOS != "windows" {
+		return nil
+	}
+	programHelper := NewProgramHelper()
+	if !programHelper.IsInstalled("windres") {
+		return fmt.Errorf("windres not installed. It comes by default with mingw. Ensure you have installed mingw correctly.")
+	}
+	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 {
 

cmd/package.go

@@ -68,15 +68,15 @@ func (b *PackageHelper) getPackageFileBaseDir() string {
 
 // Package the application into a platform specific package
 func (b *PackageHelper) Package(po *ProjectOptions) error {
-	// Check we have the exe
-	if !b.fs.FileExists(po.BinaryName) {
-		return fmt.Errorf("cannot bundle non-existant binary file '%s'. Please build with 'wails build' first", po.BinaryName)
-	}
 	switch runtime.GOOS {
 	case "darwin":
+		// Check we have the exe
+		if !b.fs.FileExists(po.BinaryName) {
+			return fmt.Errorf("cannot bundle non-existant binary file '%s'. Please build with 'wails build' first", po.BinaryName)
+		}
 		return b.packageOSX(po)
 	case "windows":
-		return fmt.Errorf("windows is not supported at this time. Please see https://github.com/wailsapp/wails/issues/3")
+		return b.packageWindows(po)
 	case "linux":
 		return fmt.Errorf("linux is not supported at this time. Please see https://github.com/wailsapp/wails/issues/2")
 	default:
@@ -146,15 +146,63 @@ func (b *PackageHelper) packageOSX(po *ProjectOptions) error {
 	if err != nil {
 		return err
 	}
-	err = b.packageIcon(resourceDir)
+	err = b.packageIconOSX(resourceDir)
 	return err
 }
 
-func (b *PackageHelper) packageIcon(resourceDir string) error {
+func (b *PackageHelper) packageWindows(po *ProjectOptions) error {
+	basename := strings.TrimSuffix(po.BinaryName, ".exe")
+
+	// Copy icon
+	tgtIconFile := filepath.Join(b.fs.Cwd(), basename+".ico")
+	if !b.fs.FileExists(tgtIconFile) {
+		srcIconfile := filepath.Join(b.getPackageFileBaseDir(), "wails.ico")
+		err := b.fs.CopyFile(srcIconfile, tgtIconFile)
+		if err != nil {
+			return err
+		}
+	}
+
+	// Copy manifest
+	tgtManifestFile := filepath.Join(b.fs.Cwd(), basename+".exe.manifest")
+	if !b.fs.FileExists(tgtManifestFile) {
+		srcManifestfile := filepath.Join(b.getPackageFileBaseDir(), "wails.exe.manifest")
+		err := b.fs.CopyFile(srcManifestfile, tgtManifestFile)
+		if err != nil {
+			return err
+		}
+	}
+
+	// Copy rc file
+	tgtRCFile := filepath.Join(b.fs.Cwd(), basename+".rc")
+	if !b.fs.FileExists(tgtRCFile) {
+		srcRCfile := filepath.Join(b.getPackageFileBaseDir(), "wails.rc")
+		rcfilebytes, err := ioutil.ReadFile(srcRCfile)
+		if err != nil {
+			return err
+		}
+		rcfiledata := strings.Replace(string(rcfilebytes), "$NAME$", basename, -1)
+		err = ioutil.WriteFile(tgtRCFile, []byte(rcfiledata), 0755)
+		if err != nil {
+			return err
+		}
+	}
+
+	// Build syso
+	sysofile := filepath.Join(b.fs.Cwd(), basename+"-res.syso")
+	windresCommand := []string{"windres", "-o", sysofile, tgtRCFile}
+	err := NewProgramHelper().RunCommandArray(windresCommand)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (b *PackageHelper) copyIcon(resourceDir string) (string, error) {
 
 	// TODO: Read this from project.json
 	const appIconFilename = "appicon.png"
-
 	srcIcon := path.Join(b.fs.Cwd(), appIconFilename)
 
 	// Check if appicon.png exists
@@ -164,14 +212,22 @@ func (b *PackageHelper) packageIcon(resourceDir string) error {
 		iconfile := filepath.Join(b.getPackageFileBaseDir(), "icon.png")
 		iconData, err := ioutil.ReadFile(iconfile)
 		if err != nil {
-			return err
+			return "", err
 		}
 		err = ioutil.WriteFile(srcIcon, iconData, 0644)
 		if err != nil {
-			return err
+			return "", err
 		}
 	}
+	return srcIcon, nil
+}
 
+func (b *PackageHelper) packageIconOSX(resourceDir string) error {
+
+	srcIcon, err := b.copyIcon(resourceDir)
+	if err != nil {
+		return err
+	}
 	tgtBundle := path.Join(resourceDir, "iconfile.icns")
 	imageFile, err := os.Open(srcIcon)
 	if err != nil {

cmd/packages/windows/wails.exe.manifest

@@ -0,0 +1,13 @@
+<!-- HUGE thanks to tambre: https://stackoverflow.com/a/44989306 -->
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3">
+    <assemblyIdentity type="win32" name="MyApplication" version="1.0.0.0" processorArchitecture="amd64"/>
+
+    <asmv3:application>
+        <asmv3:windowsSettings>
+            <dpiAware xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">true/pm</dpiAware> <!-- fallback for Windows 7 and 8 -->
+            <dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">permonitorv2,permonitor</dpiAwareness> <!-- falls back to per-monitor if per-monitor v2 is not supported -->
+            <gdiScaling xmlns="http://schemas.microsoft.com/SMI/2017/WindowsSettings">true</gdiScaling> <!-- enables GDI DPI scaling -->
+        </asmv3:windowsSettings>
+    </asmv3:application>
+</assembly>

cmd/packages/windows/wails.rc

@@ -0,0 +1,2 @@
+100 ICON    "$NAME$.ico"
+100 24      "$NAME$.exe.manifest"

cmd/project.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"io/ioutil"
 	"path/filepath"
+	"runtime"
 	"strings"
 )
 
@@ -82,11 +83,27 @@ func (ph *ProjectHelper) GenerateProject(projectOptions *ProjectOptions) error {
 	if err != nil {
 		return err
 	}
+
+	// // If we are on windows, dump a windows_resource.json
+	// if runtime.GOOS == "windows" {
+	// 	ph.GenerateWindowsResourceConfig(projectOptions)
+	// }
+
 	ph.log.Yellow("Project '%s' generated in directory '%s'!", projectOptions.Name, projectOptions.OutputDirectory)
 	ph.log.Yellow("To compile the project, run 'wails build' in the project directory.")
 	return nil
 }
 
+// // GenerateWindowsResourceConfig generates the default windows resource file
+// func (ph *ProjectHelper) GenerateWindowsResourceConfig(po *ProjectOptions) {
+
+// 	fmt.Println(buffer.String())
+
+// 	// vi.Build()
+// 	// vi.Walk()
+// 	// err := vi.WriteSyso(outPath, runtime.GOARCH)
+// }
+
 // LoadProjectConfig loads the project config from the given directory
 func (ph *ProjectHelper) LoadProjectConfig(dir string) (*ProjectOptions, error) {
 	po := ph.NewProjectOptions()
@@ -245,38 +262,41 @@ func computeBinaryName(projectName string) string {
 
 func processOutputDirectory(po *ProjectOptions) error {
 	// po.OutputDirectory
-	if po.OutputDirectory != "" {
-		projectPath, err := filepath.Abs(po.OutputDirectory)
-		if err != nil {
-			return err
-		}
-
-		if NewFSHelper().DirExists(projectPath) {
-			return fmt.Errorf("directory '%s' already exists", projectPath)
-		}
-
-		fmt.Println("Project Directory: " + po.OutputDirectory)
-	} else {
+	if po.OutputDirectory == "" {
 		po.OutputDirectory = PromptRequired("Project directory name")
 	}
+	projectPath, err := filepath.Abs(po.OutputDirectory)
+	if err != nil {
+		return err
+	}
+
+	if NewFSHelper().DirExists(projectPath) {
+		return fmt.Errorf("directory '%s' already exists", projectPath)
+	}
+
+	fmt.Println("Project Directory: " + po.OutputDirectory)
 	return nil
 }
 
 func processProjectName(po *ProjectOptions) {
 	if po.Name == "" {
 		po.Name = Prompt("The name of the project", "My Project")
-	} else {
-		fmt.Println("Project Name: " + po.Name)
 	}
+	fmt.Println("Project Name: " + po.Name)
+
 }
 
 func processBinaryName(po *ProjectOptions) {
 	if po.BinaryName == "" {
 		var binaryNameComputed = computeBinaryName(po.Name)
 		po.BinaryName = Prompt("The output binary name", binaryNameComputed)
-	} else {
-		fmt.Println("Output binary Name: " + po.BinaryName)
+		if runtime.GOOS == "windows" {
+			if !strings.HasSuffix(po.BinaryName, ".exe") {
+				po.BinaryName += ".exe"
+			}
+		}
 	}
+	fmt.Println("Output binary Name: " + po.BinaryName)
 }
 
 func processTemplateMetadata(templateMetadata map[string]interface{}, po *ProjectOptions) error {

cmd/prompt.go

@@ -18,7 +18,6 @@ func Prompt(question string, defaultValue ...string) string {
 	if haveDefault {
 		if len(answer) == 0 {
 			answer = defaultValue[0]
-			fmt.Println(" -> " + answer)
 		}
 	}
 	return answer

cmd/wails/4_build.go

@@ -3,6 +3,7 @@ package main
 import (
 	"fmt"
 	"os"
+	"runtime"
 
 	"github.com/leaanthony/spinner"
 	"github.com/wailsapp/wails/cmd"
@@ -93,13 +94,26 @@ func init() {
 		if debugMode {
 			buildMode = cmd.BuildModeDebug
 		}
+
+		if runtime.GOOS == "windows" {
+			if packageApp {
+				err = cmd.CheckWindres()
+				if err != nil {
+					return err
+				}
+				err = cmd.PackageApplication(projectOptions)
+				if err != nil {
+					return err
+				}
+			}
+		}
 		err = cmd.BuildApplication(projectOptions.BinaryName, forceRebuild, buildMode)
 		if err != nil {
 			return err
 		}
 
 		// Package application
-		if packageApp {
+		if runtime.GOOS != "windows" && packageApp {
 			err = cmd.PackageApplication(projectOptions)
 			if err != nil {
 				return err