Inital commit

wails/tools/launch_app.go

@@ -0,0 +1,139 @@
+package main
+
+import (
+	"flag"
+	"io"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+	"strings"
+)
+
+func main() {
+	var binaryPath string
+	var buildAssetsPath string
+	var frontendURL string
+	var iconPath string
+	var mode string
+
+	flag.StringVar(&binaryPath, "binary", "", "")
+	flag.StringVar(&buildAssetsPath, "build-assets", "", "")
+	flag.StringVar(&frontendURL, "frontend-url", "http://127.0.0.1:9245", "")
+	flag.StringVar(&iconPath, "icon", "", "")
+	flag.StringVar(&mode, "mode", "run", "")
+	flag.Parse()
+
+	require(binaryPath != "", "missing --binary")
+	require(buildAssetsPath != "", "missing --build-assets")
+
+	environment := os.Environ()
+	if mode == "dev" && os.Getenv("FRONTEND_DEVSERVER_URL") == "" {
+		environment = append(environment, "FRONTEND_DEVSERVER_URL="+frontendURL)
+	}
+
+	if runtime.GOOS == "darwin" {
+		os.Exit(runDarwin(binaryPath, buildAssetsPath, iconPath, mode, environment))
+	}
+
+	command := exec.Command(binaryPath)
+	command.Stdout = os.Stdout
+	command.Stderr = os.Stderr
+	command.Stdin = os.Stdin
+	command.Env = environment
+	if err := command.Run(); err != nil {
+		if exitError, ok := err.(*exec.ExitError); ok {
+			os.Exit(exitError.ExitCode())
+		}
+		panic(err)
+	}
+}
+
+func runDarwin(binaryPath string, buildAssetsPath string, iconPath string, mode string, environment []string) int {
+	appName := strings.TrimSuffix(filepath.Base(binaryPath), filepath.Ext(binaryPath))
+	if appName == "" {
+		appName = "wails-app"
+	}
+
+	appDir := filepath.Join(os.TempDir(), appName+"-bazel-"+mode)
+	defer os.RemoveAll(appDir)
+
+	appContents := filepath.Join(appDir, "Contents")
+	appMacOS := filepath.Join(appContents, "MacOS")
+	appResources := filepath.Join(appContents, "Resources")
+	appBinary := filepath.Join(appMacOS, appName)
+
+	must(os.MkdirAll(appMacOS, 0o755))
+	must(os.MkdirAll(appResources, 0o755))
+	must(copyFile(binaryPath, appBinary, 0o755))
+
+	for _, candidate := range []string{
+		filepath.Join(buildAssetsPath, "darwin", "Info.dev.plist"),
+		filepath.Join(buildAssetsPath, "darwin", "Info.plist"),
+	} {
+		if mode != "dev" && strings.HasSuffix(candidate, "Info.dev.plist") {
+			continue
+		}
+		if _, err := os.Stat(candidate); err == nil {
+			must(copyFile(candidate, filepath.Join(appContents, "Info.plist"), 0o644))
+			break
+		}
+	}
+
+	if iconPath != "" {
+		if _, err := os.Stat(iconPath); err == nil {
+			must(copyFile(iconPath, filepath.Join(appResources, filepath.Base(iconPath)), 0o644))
+		}
+	}
+
+	if _, err := os.Stat("/usr/bin/codesign"); err == nil {
+		codesign := exec.Command("/usr/bin/codesign", "--force", "--deep", "--sign", "-", appDir)
+		_ = codesign.Run()
+	}
+
+	command := exec.Command(appBinary)
+	command.Stdout = os.Stdout
+	command.Stderr = os.Stderr
+	command.Stdin = os.Stdin
+	command.Env = environment
+	if err := command.Run(); err != nil {
+		if exitError, ok := err.(*exec.ExitError); ok {
+			return exitError.ExitCode()
+		}
+		panic(err)
+	}
+
+	return 0
+}
+
+func copyFile(sourcePath string, destinationPath string, mode os.FileMode) error {
+	sourceFile, err := os.Open(sourcePath)
+	if err != nil {
+		return err
+	}
+	defer sourceFile.Close()
+
+	destinationFile, err := os.Create(destinationPath)
+	if err != nil {
+		return err
+	}
+	defer destinationFile.Close()
+
+	if _, err := io.Copy(destinationFile, sourceFile); err != nil {
+		return err
+	}
+
+	return destinationFile.Chmod(mode)
+}
+
+func must(err error) {
+	if err != nil {
+		panic(err)
+	}
+}
+
+func require(condition bool, message string) {
+	if !condition {
+		panic(message)
+	}
+}