v2.0.0-alpha.36

runtime/js/.eslintrc

@@ -3,12 +3,12 @@
         "browser": true,
         "es6": true,
         "amd": true,
-        "node": true,
+        "node": true
     },
     "extends": "eslint:recommended",
     "parserOptions": {
         "ecmaVersion": 2016,
-        "sourceType": "module",
+        "sourceType": "module"
     },
     "rules": {
         "indent": [

runtime/js/runtime/.npmignore

@@ -1 +1 @@
-bridge.js
+index.js

v2/cmd/wails/internal/commands/dev/dev.go

@@ -5,33 +5,42 @@ import (
 	"io"
 	"os"
 	"os/signal"
+	"path/filepath"
 	"runtime"
 	"strings"
 	"syscall"
 	"time"
 
+	"github.com/wailsapp/wails/v2/internal/colour"
+
 	"github.com/fsnotify/fsnotify"
 	"github.com/leaanthony/clir"
-	"github.com/leaanthony/slicer"
 	"github.com/wailsapp/wails/v2/internal/fs"
 	"github.com/wailsapp/wails/v2/internal/process"
 	"github.com/wailsapp/wails/v2/pkg/clilogger"
 	"github.com/wailsapp/wails/v2/pkg/commands/build"
 )
 
+func LogGreen(message string, args ...interface{}) {
+	text := fmt.Sprintf(message, args...)
+	println(colour.Green(text))
+}
+
+func LogRed(message string, args ...interface{}) {
+	text := fmt.Sprintf(message, args...)
+	println(colour.Red(text))
+}
+
+func LogDarkYellow(message string, args ...interface{}) {
+	text := fmt.Sprintf(message, args...)
+	println(colour.DarkYellow(text))
+}
+
 // AddSubcommand adds the `dev` command for the Wails application
 func AddSubcommand(app *clir.Cli, w io.Writer) error {
 
 	command := app.NewSubCommand("dev", "Development mode")
 
-	outputType := "desktop"
-
-	validTargetTypes := slicer.String([]string{"desktop", "hybrid", "server"})
-
-	// Setup target type flag
-	description := "Type of application to develop. Valid types: " + validTargetTypes.Join(",")
-	command.StringFlag("t", description, &outputType)
-
 	// Passthrough ldflags
 	ldflags := ""
 	command.StringFlag("ldflags", "optional ldflags", &ldflags)
@@ -42,15 +51,17 @@ func AddSubcommand(app *clir.Cli, w io.Writer) error {
 
 	// extensions to trigger rebuilds
 	extensions := "go"
-	command.StringFlag("m", "Extensions to trigger rebuilds (comma separated) eg go,js,css,html", &extensions)
+	command.StringFlag("e", "Extensions to trigger rebuilds (comma separated) eg go,js,css,html", &extensions)
+
+	// extensions to trigger rebuilds
+	showWarnings := false
+	command.BoolFlag("w", "Show warnings", &showWarnings)
+
+	loglevel := ""
+	command.StringFlag("loglevel", "Loglevel to use - Trace, Debug, Info, Warning, Error", &loglevel)
 
 	command.Action(func() error {
 
-		// Validate inputs
-		if !validTargetTypes.Contains(outputType) {
-			return fmt.Errorf("output type '%s' is not valid", outputType)
-		}
-
 		// Create logger
 		logger := clilogger.New(w)
 		app.PrintBanner()
@@ -64,7 +75,6 @@ func AddSubcommand(app *clir.Cli, w io.Writer) error {
 		defer watcher.Close()
 
 		var debugBinaryProcess *process.Process = nil
-		var buildFrontend bool = true
 		var extensionsThatTriggerARebuild = strings.Split(extensions, ",")
 
 		// Setup signal handler
@@ -75,8 +85,13 @@ func AddSubcommand(app *clir.Cli, w io.Writer) error {
 
 		// Do initial build
 		logger.Println("Building application for development...")
-		debugBinaryProcess = restartApp(logger, outputType, ldflags, compilerCommand, buildFrontend, debugBinaryProcess)
-
+		newProcess, err := restartApp(logger, "dev", ldflags, compilerCommand, debugBinaryProcess, loglevel)
+		if newProcess != nil {
+			debugBinaryProcess = newProcess
+		}
+		if err != nil {
+			return err
+		}
 		go debounce(100*time.Millisecond, watcher.Events, debounceQuit, func(event fsnotify.Event) {
 			// logger.Println("event: %+v", event)
 
@@ -89,7 +104,7 @@ func AddSubcommand(app *clir.Cli, w io.Writer) error {
 						if err != nil {
 							logger.Fatal("%s", err.Error())
 						}
-						logger.Println("Watching directory: %s", event.Name)
+						LogGreen("[New Directory] Watching new directory: %s", event.Name)
 					}
 				}
 				return
@@ -98,38 +113,33 @@ func AddSubcommand(app *clir.Cli, w io.Writer) error {
 			// Check for file writes
 			if event.Op&fsnotify.Write == fsnotify.Write {
 
-				// logger.Println("modified file: %s", event.Name)
 				var rebuild bool = false
 
 				// Iterate all file patterns
 				for _, pattern := range extensionsThatTriggerARebuild {
-					rebuild = strings.HasSuffix(event.Name, pattern)
-					if err != nil {
-						logger.Fatal(err.Error())
-					}
-					if rebuild {
-						// Only build frontend when the file isn't a Go file
-						buildFrontend = !strings.HasSuffix(event.Name, "go")
+					if strings.HasSuffix(event.Name, pattern) {
+						rebuild = true
 						break
 					}
 				}
 
 				if !rebuild {
-					logger.Println("Filename change: %s did not match extension list %s", event.Name, extensions)
+					if showWarnings {
+						LogDarkYellow("[File change] %s did not match extension list (%s)", event.Name, extensions)
+					}
 					return
 				}
 
-				if buildFrontend {
-					logger.Println("Full rebuild triggered: %s updated", event.Name)
-				} else {
-					logger.Println("Partial build triggered: %s updated", event.Name)
-				}
+				LogGreen("[Attempting rebuild] %s updated", event.Name)
 
 				// Do a rebuild
 
 				// Try and build the app
-				newBinaryProcess := restartApp(logger, outputType, ldflags, compilerCommand, buildFrontend, debugBinaryProcess)
-
+				newBinaryProcess, err := restartApp(logger, "dev", ldflags, compilerCommand, debugBinaryProcess, loglevel)
+				if err != nil {
+					fmt.Printf("Error during build: %s", err.Error())
+					return
+				}
 				// If we have a new process, save it
 				if newBinaryProcess != nil {
 					debugBinaryProcess = newBinaryProcess
@@ -139,23 +149,28 @@ func AddSubcommand(app *clir.Cli, w io.Writer) error {
 		})
 
 		// Get project dir
-		dir, err := os.Getwd()
+		projectDir, err := os.Getwd()
 		if err != nil {
 			return err
 		}
 
 		// Get all subdirectories
-		dirs, err := fs.GetSubdirectories(dir)
+		dirs, err := fs.GetSubdirectories(projectDir)
 		if err != nil {
 			return err
 		}
 
+		LogGreen("Watching (sub)/directory: %s", projectDir)
+
 		// Setup a watcher for non-node_modules directories
 		dirs.Each(func(dir string) {
 			if strings.Contains(dir, "node_modules") {
 				return
 			}
-			logger.Println("Watching directory: %s", dir)
+			// Ignore build directory
+			if strings.HasPrefix(dir, filepath.Join(projectDir, "build")) {
+				return
+			}
 			err = watcher.Add(dir)
 			if err != nil {
 				logger.Fatal(err.Error())
@@ -167,7 +182,7 @@ func AddSubcommand(app *clir.Cli, w io.Writer) error {
 		for quit == false {
 			select {
 			case <-quitChannel:
-				println()
+				LogGreen("\nCaught quit")
 				// Notify debouncer to quit
 				debounceQuit <- true
 				quit = true
@@ -182,7 +197,7 @@ func AddSubcommand(app *clir.Cli, w io.Writer) error {
 			}
 		}
 
-		logger.Println("Development mode exited")
+		LogGreen("Development mode exited")
 
 		return nil
 	})
@@ -209,15 +224,15 @@ exit:
 	}
 }
 
-func restartApp(logger *clilogger.CLILogger, outputType string, ldflags string, compilerCommand string, buildFrontend bool, debugBinaryProcess *process.Process) *process.Process {
+func restartApp(logger *clilogger.CLILogger, outputType string, ldflags string, compilerCommand string, debugBinaryProcess *process.Process, loglevel string) (*process.Process, error) {
 
-	appBinary, err := buildApp(logger, outputType, ldflags, compilerCommand, buildFrontend)
+	appBinary, err := buildApp(logger, outputType, ldflags, compilerCommand)
 	println()
 	if err != nil {
-		logger.Println("[ERROR] Build Failed: %s", err.Error())
-		return nil
+		LogRed("Build error - continuing to run current version")
+		LogDarkYellow(err.Error())
+		return nil, nil
 	}
-	logger.Println("Build new binary: %s", appBinary)
 
 	// Kill existing binary if need be
 	if debugBinaryProcess != nil {
@@ -233,7 +248,7 @@ func restartApp(logger *clilogger.CLILogger, outputType string, ldflags string,
 	// TODO: Generate `backend.js`
 
 	// Start up new binary
-	newProcess := process.NewProcess(logger, appBinary)
+	newProcess := process.NewProcess(logger, appBinary, "-loglevel", loglevel)
 	err = newProcess.Start()
 	if err != nil {
 		// Remove binary
@@ -244,13 +259,13 @@ func restartApp(logger *clilogger.CLILogger, outputType string, ldflags string,
 		logger.Fatal("Unable to start application: %s", err.Error())
 	}
 
-	return newProcess
+	return newProcess, nil
 }
 
-func buildApp(logger *clilogger.CLILogger, outputType string, ldflags string, compilerCommand string, buildFrontend bool) (string, error) {
+func buildApp(logger *clilogger.CLILogger, outputType string, ldflags string, compilerCommand string) (string, error) {
 
 	// Create random output file
-	outputFile := fmt.Sprintf("debug-%d", time.Now().Unix())
+	outputFile := fmt.Sprintf("dev-%d", time.Now().Unix())
 
 	// Create BuildOptions
 	buildOptions := &build.Options{
@@ -262,7 +277,7 @@ func buildApp(logger *clilogger.CLILogger, outputType string, ldflags string, co
 		LDFlags:        ldflags,
 		Compiler:       compilerCommand,
 		OutputFile:     outputFile,
-		IgnoreFrontend: !buildFrontend,
+		IgnoreFrontend: true,
 	}
 
 	return build.Build(buildOptions)

v2/cmd/wails/internal/commands/update/update.go

@@ -0,0 +1,164 @@
+package update
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"os"
+
+	"github.com/wailsapp/wails/v2/internal/shell"
+
+	"github.com/wailsapp/wails/v2/internal/github"
+
+	"github.com/leaanthony/clir"
+	"github.com/wailsapp/wails/v2/pkg/clilogger"
+)
+
+// AddSubcommand adds the `init` command for the Wails application
+func AddSubcommand(app *clir.Cli, w io.Writer, currentVersion string) error {
+
+	command := app.NewSubCommand("update", "Update the Wails CLI")
+	command.LongDescription(`This command allows you to update your version of the Wails CLI.`)
+
+	// Setup flags
+	var prereleaseRequired bool
+	command.BoolFlag("pre", "Update CLI to latest Prerelease", &prereleaseRequired)
+
+	var specificVersion string
+	command.StringFlag("version", "Install a specific version (Overrides other flags) of the CLI", &specificVersion)
+
+	command.Action(func() error {
+
+		// Create logger
+		logger := clilogger.New(w)
+
+		// Print banner
+		app.PrintBanner()
+		logger.Println("Checking for updates...")
+
+		var desiredVersion *github.SemanticVersion
+		var err error
+		var valid bool
+
+		if len(specificVersion) > 0 {
+			// Check if this is a valid version
+			valid, err = github.IsValidTag(specificVersion)
+			if err == nil {
+				if !valid {
+					err = fmt.Errorf("version '%s' is invalid", specificVersion)
+				} else {
+					desiredVersion, err = github.NewSemanticVersion(specificVersion)
+				}
+			}
+		} else {
+			if prereleaseRequired {
+				desiredVersion, err = github.GetLatestPreRelease()
+			} else {
+				desiredVersion, err = github.GetLatestStableRelease()
+			}
+		}
+		if err != nil {
+			return err
+		}
+		fmt.Println()
+
+		fmt.Println("    Current Version : " + currentVersion)
+
+		if len(specificVersion) > 0 {
+			fmt.Printf("    Desired Version : v%s\n", desiredVersion)
+		} else {
+			if prereleaseRequired {
+				fmt.Printf("  Latest Prerelease : v%s\n", desiredVersion)
+			} else {
+				fmt.Printf("     Latest Release : v%s\n", desiredVersion)
+			}
+		}
+
+		return updateToVersion(logger, desiredVersion, len(specificVersion) > 0, currentVersion)
+	})
+
+	return nil
+}
+
+func updateToVersion(logger *clilogger.CLILogger, targetVersion *github.SemanticVersion, force bool, currentVersion string) error {
+
+	var targetVersionString = "v" + targetVersion.String()
+
+	// Early exit
+	if targetVersionString == currentVersion {
+		logger.Println("Looks like you're up to date!")
+		return nil
+	}
+
+	var desiredVersion string
+
+	if !force {
+
+		compareVersion := currentVersion
+
+		currentVersion, err := github.NewSemanticVersion(compareVersion)
+		if err != nil {
+			return err
+		}
+
+		var success bool
+
+		// Release -> Pre-Release = Massage current version to prerelease format
+		if targetVersion.IsPreRelease() && currentVersion.IsRelease() {
+			testVersion, err := github.NewSemanticVersion(compareVersion + "-0")
+			if err != nil {
+				return err
+			}
+			success, _ = targetVersion.IsGreaterThan(testVersion)
+		}
+		// Pre-Release -> Release = Massage target version to prerelease format
+		if targetVersion.IsRelease() && currentVersion.IsPreRelease() {
+			// We are ok with greater than or equal
+			mainversion := currentVersion.MainVersion()
+			targetVersion, err = github.NewSemanticVersion(targetVersion.String())
+			if err != nil {
+				return err
+			}
+			success, _ = targetVersion.IsGreaterThanOrEqual(mainversion)
+		}
+
+		// Release -> Release = Standard check
+		if (targetVersion.IsRelease() && currentVersion.IsRelease()) ||
+			(targetVersion.IsPreRelease() && currentVersion.IsPreRelease()) {
+
+			success, _ = targetVersion.IsGreaterThan(currentVersion)
+		}
+
+		// Compare
+		if !success {
+			logger.Println("Error: The requested version is lower than the current version.")
+			logger.Println("If this is what you really want to do, use `wails update -version %s`", targetVersionString)
+			return nil
+		}
+
+		desiredVersion = "v" + targetVersion.String()
+
+	} else {
+		desiredVersion = "v" + targetVersion.String()
+	}
+
+	fmt.Println()
+	logger.Print("Installing Wails CLI " + desiredVersion + "...")
+
+	// Run command in non module directory
+	homeDir, err := os.UserHomeDir()
+	if err != nil {
+		log.Fatal("Cannot find home directory! Please file a bug report!")
+	}
+
+	sout, serr, err := shell.RunCommand(homeDir, "go", "get", "github.com/wailsapp/wails/v2/cmd/wails@"+desiredVersion)
+	if err != nil {
+		logger.Println("Failed.")
+		logger.Println(sout + `\n` + serr)
+		return err
+	}
+	fmt.Println()
+	logger.Println("Wails CLI updated to " + desiredVersion)
+
+	return nil
+}

v2/cmd/wails/main.go

@@ -1,8 +1,13 @@
 package main
 
 import (
+	"fmt"
 	"os"
 
+	"github.com/wailsapp/wails/v2/internal/colour"
+
+	"github.com/wailsapp/wails/v2/cmd/wails/internal/commands/update"
+
 	"github.com/leaanthony/clir"
 	"github.com/wailsapp/wails/v2/cmd/wails/internal/commands/build"
 	"github.com/wailsapp/wails/v2/cmd/wails/internal/commands/debug"
@@ -17,12 +22,18 @@ func fatal(message string) {
 	os.Exit(1)
 }
 
+func banner(_ *clir.Cli) string {
+	return fmt.Sprintf("%s %s - Go/HTML Application Framework", colour.Yellow("Wails"), colour.DarkRed(version))
+}
+
 func main() {
 
 	var err error
 
 	app := clir.NewCli("Wails", "Go/HTML Application Framework", version)
 
+	app.SetBannerFunction(banner)
+
 	build.AddBuildSubcommand(app, os.Stdout)
 	err = initialise.AddSubcommand(app, os.Stdout)
 	if err != nil {
@@ -48,6 +59,11 @@ func main() {
 		fatal(err.Error())
 	}
 
+	err = update.AddSubcommand(app, os.Stdout, version)
+	if err != nil {
+		fatal(err.Error())
+	}
+
 	err = app.Run()
 	if err != nil {
 		println("\n\nERROR: " + err.Error())

v2/cmd/wails/version.go

@@ -1,3 +1,3 @@
 package main
 
-var version = "v2.0.0-alpha.15"
+var version = "v2.0.0-alpha.36"

v2/go.mod

@@ -1,11 +1,13 @@
 module github.com/wailsapp/wails/v2
 
-go 1.15
+go 1.16
 
 require (
+	github.com/Masterminds/semver v1.5.0
 	github.com/davecgh/go-spew v1.1.1
 	github.com/fatih/structtag v1.2.0
 	github.com/fsnotify/fsnotify v1.4.9
+	github.com/gorilla/websocket v1.4.1
 	github.com/imdario/mergo v0.3.11
 	github.com/jackmordaunt/icns v1.0.0
 	github.com/leaanthony/clir v1.0.4
@@ -13,16 +15,15 @@ require (
 	github.com/leaanthony/slicer v1.5.0
 	github.com/matryer/is v1.4.0
 	github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 // indirect
-	github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
 	github.com/olekukonko/tablewriter v0.0.4
 	github.com/pkg/errors v0.9.1
 	github.com/tdewolff/minify v2.3.6+incompatible
 	github.com/tdewolff/parse v2.3.4+incompatible // indirect
 	github.com/tdewolff/test v1.0.6 // indirect
+	github.com/wzshiming/ctc v1.2.3
 	github.com/xyproto/xpm v1.2.1
 	golang.org/x/net v0.0.0-20200822124328-c89045814202
 	golang.org/x/sys v0.0.0-20200724161237-0e2f3a69832c
 	golang.org/x/tools v0.0.0-20200902012652-d1954cc86c82
-	gopkg.in/check.v1 v1.0.0-20200902074654-038fdea0a05b // indirect
 	nhooyr.io/websocket v1.8.6
 )

v2/go.sum

@@ -1,3 +1,5 @@
+github.com/Masterminds/semver v1.5.0 h1:H65muMkzWKEuNDnfl9d70GUjFniHKHRbFPGBuZ3QEww=
+github.com/Masterminds/semver v1.5.0/go.mod h1:MB6lktGJrhw8PrUyiEoblNEGEQ+RzHPF078ddwwvV3Y=
 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=
@@ -9,7 +11,6 @@ github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE
 github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI=
 github.com/gin-gonic/gin v1.6.3 h1:ahKqKTFpO5KTPHxWZjEdPScmYaGtLo8Y4DMHoEsnp14=
 github.com/gin-gonic/gin v1.6.3/go.mod h1:75u5sXoLsGZoRN5Sgbi1eraJ4GU3++wFwWzhwvtwp4M=
-github.com/go-playground/assert/v2 v2.0.1 h1:MsBgLAaY856+nPRTKrp3/OZK38U/wa0CcBYNjji3q3A=
 github.com/go-playground/assert/v2 v2.0.1/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
 github.com/go-playground/locales v0.13.0 h1:HyWk6mgj5qFqCT5fjGBuRArbVDfE4hi8+e8ceBS/t7Q=
 github.com/go-playground/locales v0.13.0/go.mod h1:taPMhCMXrRLJO55olJkUXHZBHCxTMfnGwq/HNwmWNS8=
@@ -39,9 +40,6 @@ github.com/json-iterator/go v1.1.9 h1:9yzud/Ht36ygwatGx56VwCZtlI/2AD15T1X2sjSuGn
 github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/klauspost/compress v1.10.3 h1:OP96hzwJVBIHYU52pVTI6CczrxPvrGfgqF9N5eTO0Q8=
 github.com/klauspost/compress v1.10.3/go.mod h1:aoV0uJVorq1K+umq18yTdKaF57EivdYsUV+/s2qKfXs=
-github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
-github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
-github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/leaanthony/clir v1.0.4 h1:Dov2y9zWJmZr7CjaCe86lKa4b5CSxskGAt2yBkoDyiU=
 github.com/leaanthony/clir v1.0.4/go.mod h1:k/RBkdkFl18xkkACMCLt09bhiZnrGORoxmomeMvDpE0=
 github.com/leaanthony/gosod v0.0.4 h1:v4hepo4IyL8E8c9qzDsvYcA0KGh7Npf8As74K5ibQpI=
@@ -62,17 +60,13 @@ github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 h1:Esafd1046DLD
 github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 h1:zYyBkD/k9seD2A7fsi6Oo2LfFZAehjjQMERAvZLEDnQ=
 github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646/go.mod h1:jpp1/29i3P1S/RLdc7JQKbRpFeM1dOBd8T9ki5s+AY8=
-github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs=
-github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
 github.com/olekukonko/tablewriter v0.0.4 h1:vHD/YYe1Wolo78koG299f7V/VAS08c6IpCLn+Ejf/w8=
 github.com/olekukonko/tablewriter v0.0.4/go.mod h1:zq6QwlOf5SlnkVbMSr5EoBv3636FWnp+qbPhuoO21uA=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
-github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/tdewolff/minify v2.3.6+incompatible h1:2hw5/9ZvxhWLvBUnHE06gElGYz+Jv9R4Eys0XUzItYo=
 github.com/tdewolff/minify v2.3.6+incompatible/go.mod h1:9Ov578KJUmAWpS6NeZwRZyT56Uf6o3Mcz9CEsg8USYs=
@@ -84,6 +78,10 @@ github.com/ugorji/go v1.1.7 h1:/68gy2h+1mWMrwZFeD1kQialdSzAb432dtpeJ42ovdo=
 github.com/ugorji/go v1.1.7/go.mod h1:kZn38zHttfInRq0xu/PH0az30d+z6vm202qpg1oXVMw=
 github.com/ugorji/go/codec v1.1.7 h1:2SvQaVZ1ouYrrKKwoSk2pzd4A9evlKJb9oTL+OaLUSs=
 github.com/ugorji/go/codec v1.1.7/go.mod h1:Ax+UKWsSmolVDwsd+7N3ZtXu+yMGCf907BLYF3GoBXY=
+github.com/wzshiming/ctc v1.2.3 h1:q+hW3IQNsjIlOFBTGZZZeIXTElFM4grF4spW/errh/c=
+github.com/wzshiming/ctc v1.2.3/go.mod h1:2tVAtIY7SUyraSk0JxvwmONNPFL4ARavPuEsg5+KA28=
+github.com/wzshiming/winseq v0.0.0-20200112104235-db357dc107ae h1:tpXvBXC3hpQBDCc9OojJZCQMVRAbT3TTdUMP8WguXkY=
+github.com/wzshiming/winseq v0.0.0-20200112104235-db357dc107ae/go.mod h1:VTAq37rkGeV+WOybvZwjXiJOicICdpLCN8ifpISjK20=
 github.com/xyproto/xpm v1.2.1 h1:trdvGjjWBsOOKzBBUPT6JvaIQM3acJEEYfbxN7M96wg=
 github.com/xyproto/xpm v1.2.1/go.mod h1:cMnesLsD0PBXLgjDfTDEaKr8XyTFsnP1QycSqRw7BiY=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
@@ -100,33 +98,26 @@ golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20191005200804-aed5e4c7ecf9 h1:L2auWcuQIvxz9xSEqzESnV/QN/gNRXNApHi3fYwl2w0=
 golang.org/x/sys v0.0.0-20191005200804-aed5e4c7ecf9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200107162124-548cf772de50/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd h1:xhmwyvizuTgC2qz7ZlMluP20uW+C3Rm0FD/WLDX8884=
 golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200724161237-0e2f3a69832c h1:UIcGWL6/wpCfyGuJnRFJRurA+yj8RrW7Q6x2YMCXt6c=
 golang.org/x/sys v0.0.0-20200724161237-0e2f3a69832c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
-golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e h1:FDhOuMEY4JVRztM/gsbk+IKUQ8kj74bxZrgw87eMMVc=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20200902012652-d1954cc86c82 h1:shxDsb9Dz27xzk3A0DxP0JuJnZMpKrdg8+E14eiUAX4=
 golang.org/x/tools v0.0.0-20200902012652-d1954cc86c82/go.mod h1:Cj7w3i3Rnn0Xh82ur9kSqwfTHTeVxaDqrfMjpcNT6bE=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20200902074654-038fdea0a05b h1:QRR6H1YWRnHb4Y/HeNFCTJLFVxaq6wH4YuVdsUOr75U=
-gopkg.in/check.v1 v1.0.0-20200902074654-038fdea0a05b/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

v2/internal/app/debug.go

@@ -2,11 +2,40 @@
 
 package app
 
+import (
+	"flag"
+	"strings"
+
+	"github.com/wailsapp/wails/v2/pkg/logger"
+)
+
 // Init initialises the application for a debug environment
 func (a *App) Init() error {
 	// Indicate debug mode
 	a.debug = true
-	// Enable dev tools
-	a.options.DevTools = true
+
+	if a.appType == "desktop" {
+		// Enable dev tools
+		a.options.DevTools = true
+	}
+
+	// Set log levels
+	loglevel := flag.String("loglevel", "debug", "Loglevel to use - Trace, Debug, Info, Warning, Error")
+	flag.Parse()
+	if len(*loglevel) > 0 {
+		switch strings.ToLower(*loglevel) {
+		case "trace":
+			a.logger.SetLogLevel(logger.TRACE)
+		case "info":
+			a.logger.SetLogLevel(logger.INFO)
+		case "warning":
+			a.logger.SetLogLevel(logger.WARNING)
+		case "error":
+			a.logger.SetLogLevel(logger.ERROR)
+		default:
+			a.logger.SetLogLevel(logger.DEBUG)
+		}
+	}
+
 	return nil
 }

v2/internal/app/default.go

@@ -1,4 +1,4 @@
-// +build !desktop,!hybrid,!server
+// +build !desktop,!hybrid,!server,!dev
 
 package app
 
@@ -8,9 +8,10 @@ package app
 // will be unknown and the application will not work as expected.
 
 import (
-	"github.com/wailsapp/wails/v2/internal/logger"
 	"os"
 
+	"github.com/wailsapp/wails/v2/internal/logger"
+
 	"github.com/wailsapp/wails/v2/pkg/options"
 )
 
@@ -38,7 +39,3 @@ func (a *App) Run() error {
 	os.Exit(1)
 	return nil
 }
-
-// Bind the dummy interface
-func (a *App) Bind(_ interface{}) {
-}

v2/internal/app/desktop.go

@@ -3,6 +3,9 @@
 package app
 
 import (
+	"context"
+	"sync"
+
 	"github.com/wailsapp/wails/v2/internal/binding"
 	"github.com/wailsapp/wails/v2/internal/ffenestri"
 	"github.com/wailsapp/wails/v2/internal/logger"
@@ -17,6 +20,8 @@ import (
 
 // App defines a Wails application structure
 type App struct {
+	appType string
+
 	window     *ffenestri.Application
 	servicebus *servicebus.ServiceBus
 	logger     *logger.Logger
@@ -24,10 +29,10 @@ type App struct {
 	options    *options.App
 
 	// Subsystems
-	log        *subsystem.Log
-	runtime    *subsystem.Runtime
-	event      *subsystem.Event
-	binding    *subsystem.Binding
+	log     *subsystem.Log
+	runtime *subsystem.Runtime
+	event   *subsystem.Event
+	//binding    *subsystem.Binding
 	call       *subsystem.Call
 	menu       *subsystem.Menu
 	dispatcher *messagedispatcher.Dispatcher
@@ -79,11 +84,15 @@ func CreateApp(appoptions *options.App) (*App, error) {
 
 	window := ffenestri.NewApplicationWithConfig(appoptions, myLogger, menuManager)
 
+	// Create binding exemptions - Ugly hack. There must be a better way
+	bindingExemptions := []interface{}{appoptions.Startup, appoptions.Shutdown}
+
 	result := &App{
+		appType:          "desktop",
 		window:           window,
 		servicebus:       servicebus.New(myLogger),
 		logger:           myLogger,
-		bindings:         binding.NewBindings(myLogger),
+		bindings:         binding.NewBindings(myLogger, appoptions.Bind, bindingExemptions),
 		menuManager:      menuManager,
 		startupCallback:  appoptions.Startup,
 		shutdownCallback: appoptions.Shutdown,
@@ -103,13 +112,10 @@ func (a *App) Run() error {
 
 	var err error
 
-	// Setup signal handler
-	signalsubsystem, err := signal.NewManager(a.servicebus, a.logger)
-	if err != nil {
-		return err
-	}
-	a.signal = signalsubsystem
-	a.signal.Start()
+	// Setup a context
+	var subsystemWaitGroup sync.WaitGroup
+	parentContext := context.WithValue(context.Background(), "waitgroup", &subsystemWaitGroup)
+	ctx, cancel := context.WithCancel(parentContext)
 
 	// Start the service bus
 	a.servicebus.Debug()
@@ -118,7 +124,7 @@ func (a *App) Run() error {
 		return err
 	}
 
-	runtimesubsystem, err := subsystem.NewRuntime(a.servicebus, a.logger, a.startupCallback, a.shutdownCallback)
+	runtimesubsystem, err := subsystem.NewRuntime(ctx, a.servicebus, a.logger, a.startupCallback)
 	if err != nil {
 		return err
 	}
@@ -132,17 +138,6 @@ func (a *App) Run() error {
 	a.loglevelStore = a.runtime.GoRuntime().Store.New("wails:loglevel", a.options.LogLevel)
 	a.appconfigStore = a.runtime.GoRuntime().Store.New("wails:appconfig", a.options)
 
-	// Start the binding subsystem
-	bindingsubsystem, err := subsystem.NewBinding(a.servicebus, a.logger, a.bindings, a.runtime.GoRuntime())
-	if err != nil {
-		return err
-	}
-	a.binding = bindingsubsystem
-	err = a.binding.Start()
-	if err != nil {
-		return err
-	}
-
 	// Start the logging subsystem
 	log, err := subsystem.NewLog(a.servicebus, a.logger, a.loglevelStore)
 	if err != nil {
@@ -166,18 +161,18 @@ func (a *App) Run() error {
 	}
 
 	// Start the eventing subsystem
-	event, err := subsystem.NewEvent(a.servicebus, a.logger)
+	eventsubsystem, err := subsystem.NewEvent(ctx, a.servicebus, a.logger)
 	if err != nil {
 		return err
 	}
-	a.event = event
+	a.event = eventsubsystem
 	err = a.event.Start()
 	if err != nil {
 		return err
 	}
 
 	// Start the menu subsystem
-	menusubsystem, err := subsystem.NewMenu(a.servicebus, a.logger, a.menuManager)
+	menusubsystem, err := subsystem.NewMenu(ctx, a.servicebus, a.logger, a.menuManager)
 	if err != nil {
 		return err
 	}
@@ -188,11 +183,11 @@ func (a *App) Run() error {
 	}
 
 	// Start the call subsystem
-	call, err := subsystem.NewCall(a.servicebus, a.logger, a.bindings.DB(), a.runtime.GoRuntime())
+	callSubsystem, err := subsystem.NewCall(ctx, a.servicebus, a.logger, a.bindings.DB(), a.runtime.GoRuntime())
 	if err != nil {
 		return err
 	}
-	a.call = call
+	a.call = callSubsystem
 	err = a.call.Start()
 	if err != nil {
 		return err
@@ -204,23 +199,42 @@ func (a *App) Run() error {
 		return err
 	}
 
-	result := a.window.Run(dispatcher, bindingDump, a.debug)
+	// Setup signal handler
+	signalsubsystem, err := signal.NewManager(ctx, cancel, a.servicebus, a.logger)
+	if err != nil {
+		return err
+	}
+	a.signal = signalsubsystem
+	a.signal.Start()
+
+	err = a.window.Run(dispatcher, bindingDump, a.debug)
 	a.logger.Trace("Ffenestri.Run() exited")
+	if err != nil {
+		return err
+	}
+
+	// Close down all the subsystems
+	a.logger.Trace("Cancelling subsystems")
+	cancel()
+	subsystemWaitGroup.Wait()
+
+	a.logger.Trace("Cancelling dispatcher")
+	dispatcher.Close()
+
+	// Close log
+	a.logger.Trace("Stopping log")
+	log.Close()
+
+	a.logger.Trace("Stopping Service bus")
 	err = a.servicebus.Stop()
 	if err != nil {
 		return err
 	}
 
-	return result
-}
-
-// Bind a struct to the application by passing in
-// a pointer to it
-func (a *App) Bind(structPtr interface{}) {
-
-	// Add the struct to the bindings
-	err := a.bindings.Add(structPtr)
-	if err != nil {
-		a.logger.Fatal("Error during binding: " + err.Error())
+	// Shutdown callback
+	if a.shutdownCallback != nil {
+		a.shutdownCallback()
 	}
+
+	return nil
 }

v2/internal/app/dev.go

@@ -0,0 +1,244 @@
+// +build dev
+
+package app
+
+import (
+	"context"
+	"sync"
+
+	"github.com/wailsapp/wails/v2/internal/bridge"
+	"github.com/wailsapp/wails/v2/internal/menumanager"
+
+	"github.com/wailsapp/wails/v2/pkg/options"
+
+	"github.com/wailsapp/wails/v2/internal/binding"
+	"github.com/wailsapp/wails/v2/internal/logger"
+	"github.com/wailsapp/wails/v2/internal/messagedispatcher"
+	"github.com/wailsapp/wails/v2/internal/runtime"
+	"github.com/wailsapp/wails/v2/internal/servicebus"
+	"github.com/wailsapp/wails/v2/internal/signal"
+	"github.com/wailsapp/wails/v2/internal/subsystem"
+)
+
+// App defines a Wails application structure
+type App struct {
+	appType string
+
+	servicebus *servicebus.ServiceBus
+	logger     *logger.Logger
+	signal     *signal.Manager
+	options    *options.App
+
+	// Subsystems
+	log     *subsystem.Log
+	runtime *subsystem.Runtime
+	event   *subsystem.Event
+	//binding    *subsystem.Binding
+	call       *subsystem.Call
+	menu       *subsystem.Menu
+	dispatcher *messagedispatcher.Dispatcher
+
+	menuManager *menumanager.Manager
+
+	// Indicates if the app is in debug mode
+	debug bool
+
+	// This is our binding DB
+	bindings *binding.Bindings
+
+	// Application Stores
+	loglevelStore  *runtime.Store
+	appconfigStore *runtime.Store
+
+	// Startup/Shutdown
+	startupCallback  func(*runtime.Runtime)
+	shutdownCallback func()
+
+	// Bridge
+	bridge *bridge.Bridge
+}
+
+// Create App
+func CreateApp(appoptions *options.App) (*App, error) {
+
+	// Merge default options
+	options.MergeDefaults(appoptions)
+
+	// Set up logger
+	myLogger := logger.New(appoptions.Logger)
+
+	// Create the menu manager
+	menuManager := menumanager.NewManager()
+
+	// Process the application menu
+	menuManager.SetApplicationMenu(options.GetApplicationMenu(appoptions))
+
+	// Process context menus
+	contextMenus := options.GetContextMenus(appoptions)
+	for _, contextMenu := range contextMenus {
+		menuManager.AddContextMenu(contextMenu)
+	}
+
+	// Process tray menus
+	trayMenus := options.GetTrayMenus(appoptions)
+	for _, trayMenu := range trayMenus {
+		menuManager.AddTrayMenu(trayMenu)
+	}
+
+	// Create binding exemptions - Ugly hack. There must be a better way
+	bindingExemptions := []interface{}{appoptions.Startup, appoptions.Shutdown}
+
+	result := &App{
+		appType:          "dev",
+		bindings:         binding.NewBindings(myLogger, appoptions.Bind, bindingExemptions),
+		logger:           myLogger,
+		servicebus:       servicebus.New(myLogger),
+		startupCallback:  appoptions.Startup,
+		shutdownCallback: appoptions.Shutdown,
+		bridge:           bridge.NewBridge(myLogger),
+		menuManager:      menuManager,
+	}
+
+	result.options = appoptions
+
+	// Initialise the app
+	err := result.Init()
+
+	return result, err
+
+}
+
+// Run the application
+func (a *App) Run() error {
+
+	var err error
+
+	// Setup a context
+	var subsystemWaitGroup sync.WaitGroup
+	parentContext := context.WithValue(context.Background(), "waitgroup", &subsystemWaitGroup)
+	ctx, cancel := context.WithCancel(parentContext)
+
+	// Start the service bus
+	a.servicebus.Debug()
+	err = a.servicebus.Start()
+	if err != nil {
+		return err
+	}
+
+	runtimesubsystem, err := subsystem.NewRuntime(ctx, a.servicebus, a.logger, a.startupCallback)
+	if err != nil {
+		return err
+	}
+	a.runtime = runtimesubsystem
+	err = a.runtime.Start()
+	if err != nil {
+		return err
+	}
+
+	// Application Stores
+	a.loglevelStore = a.runtime.GoRuntime().Store.New("wails:loglevel", a.options.LogLevel)
+	a.appconfigStore = a.runtime.GoRuntime().Store.New("wails:appconfig", a.options)
+
+	// Start the logging subsystem
+	log, err := subsystem.NewLog(a.servicebus, a.logger, a.loglevelStore)
+	if err != nil {
+		return err
+	}
+	a.log = log
+	err = a.log.Start()
+	if err != nil {
+		return err
+	}
+
+	// create the dispatcher
+	dispatcher, err := messagedispatcher.New(a.servicebus, a.logger)
+	if err != nil {
+		return err
+	}
+	a.dispatcher = dispatcher
+	err = dispatcher.Start()
+	if err != nil {
+		return err
+	}
+
+	// Start the eventing subsystem
+	eventsubsystem, err := subsystem.NewEvent(ctx, a.servicebus, a.logger)
+	if err != nil {
+		return err
+	}
+	a.event = eventsubsystem
+	err = a.event.Start()
+	if err != nil {
+		return err
+	}
+
+	// Start the menu subsystem
+	menusubsystem, err := subsystem.NewMenu(ctx, a.servicebus, a.logger, a.menuManager)
+	if err != nil {
+		return err
+	}
+	a.menu = menusubsystem
+	err = a.menu.Start()
+	if err != nil {
+		return err
+	}
+
+	// Start the call subsystem
+	callSubsystem, err := subsystem.NewCall(ctx, a.servicebus, a.logger, a.bindings.DB(), a.runtime.GoRuntime())
+	if err != nil {
+		return err
+	}
+	a.call = callSubsystem
+	err = a.call.Start()
+	if err != nil {
+		return err
+	}
+
+	// Dump bindings as a debug
+	bindingDump, err := a.bindings.ToJSON()
+	if err != nil {
+		return err
+	}
+
+	// Generate backend.js
+	a.bindings.GenerateBackendJS()
+
+	// Setup signal handler
+	signalsubsystem, err := signal.NewManager(ctx, cancel, a.servicebus, a.logger)
+	if err != nil {
+		return err
+	}
+	a.signal = signalsubsystem
+	a.signal.Start()
+
+	err = a.bridge.Run(dispatcher, a.menuManager, bindingDump, a.debug)
+	a.logger.Trace("Bridge.Run() exited")
+	if err != nil {
+		return err
+	}
+
+	// Close down all the subsystems
+	a.logger.Trace("Cancelling subsystems")
+	cancel()
+	subsystemWaitGroup.Wait()
+
+	a.logger.Trace("Cancelling dispatcher")
+	dispatcher.Close()
+
+	// Close log
+	a.logger.Trace("Stopping log")
+	log.Close()
+
+	a.logger.Trace("Stopping Service bus")
+	err = a.servicebus.Stop()
+	if err != nil {
+		return err
+	}
+
+	// Shutdown callback
+	if a.shutdownCallback != nil {
+		a.shutdownCallback()
+	}
+	return nil
+
+}

v2/internal/app/hybrid.go

@@ -75,7 +75,7 @@ func CreateApp(options *Options) *App {
 		webserver:  webserver.NewWebServer(myLogger),
 		servicebus: servicebus.New(myLogger),
 		logger:     myLogger,
-		bindings:   binding.NewBindings(myLogger),
+		bindings:   binding.NewBindings(myLogger, options.Bind),
 	}
 
 	// Initialise the app
@@ -192,14 +192,3 @@ func (a *App) Run() error {
 
 	return cli.Run()
 }
-
-// Bind a struct to the application by passing in
-// a pointer to it
-func (a *App) Bind(structPtr interface{}) {
-
-	// Add the struct to the bindings
-	err := a.bindings.Add(structPtr)
-	if err != nil {
-		a.logger.Fatal("Error during binding: " + err.Error())
-	}
-}

v2/internal/app/server.go

@@ -6,10 +6,13 @@ import (
 	"os"
 	"path/filepath"
 
+	"github.com/wailsapp/wails/v2/pkg/options"
+
 	"github.com/leaanthony/clir"
 	"github.com/wailsapp/wails/v2/internal/binding"
 	"github.com/wailsapp/wails/v2/internal/logger"
 	"github.com/wailsapp/wails/v2/internal/messagedispatcher"
+	"github.com/wailsapp/wails/v2/internal/runtime"
 	"github.com/wailsapp/wails/v2/internal/servicebus"
 	"github.com/wailsapp/wails/v2/internal/subsystem"
 	"github.com/wailsapp/wails/v2/internal/webserver"
@@ -17,12 +20,16 @@ import (
 
 // App defines a Wails application structure
 type App struct {
+	appType string
+
 	binding *subsystem.Binding
 	call    *subsystem.Call
 	event   *subsystem.Event
 	log     *subsystem.Log
 	runtime *subsystem.Runtime
 
+	options *options.App
+
 	bindings   *binding.Bindings
 	logger     *logger.Logger
 	dispatcher *messagedispatcher.Dispatcher
@@ -30,28 +37,40 @@ type App struct {
 	webserver  *webserver.WebServer
 
 	debug bool
+
+	// Application Stores
+	loglevelStore  *runtime.Store
+	appconfigStore *runtime.Store
+
+	// Startup/Shutdown
+	startupCallback  func(*runtime.Runtime)
+	shutdownCallback func()
 }
 
 // Create App
-func CreateApp(options *Options) *App {
-	options.mergeDefaults()
-	// We ignore the inputs (for now)
+func CreateApp(appoptions *options.App) (*App, error) {
 
-	// TODO: Allow logger output override on CLI
-	myLogger := logger.New(os.Stdout)
-	myLogger.SetLogLevel(logger.TRACE)
+	// Merge default options
+	options.MergeDefaults(appoptions)
+
+	// Set up logger
+	myLogger := logger.New(appoptions.Logger)
+	myLogger.SetLogLevel(appoptions.LogLevel)
 
 	result := &App{
-		bindings:   binding.NewBindings(myLogger),
-		logger:     myLogger,
-		servicebus: servicebus.New(myLogger),
-		webserver:  webserver.NewWebServer(myLogger),
+		appType:          "server",
+		bindings:         binding.NewBindings(myLogger, options.Bind),
+		logger:           myLogger,
+		servicebus:       servicebus.New(myLogger),
+		webserver:        webserver.NewWebServer(myLogger),
+		startupCallback:  appoptions.Startup,
+		shutdownCallback: appoptions.Shutdown,
 	}
 
 	// Initialise app
 	result.Init()
 
-	return result
+	return result, nil
 }
 
 // Run the application
@@ -88,8 +107,21 @@ func (a *App) Run() error {
 		if debugMode {
 			a.servicebus.Debug()
 		}
+
+		// Start the runtime
+		runtime, err := subsystem.NewRuntime(a.servicebus, a.logger, a.startupCallback, a.shutdownCallback)
+		if err != nil {
+			return err
+		}
+		a.runtime = runtime
+		a.runtime.Start()
+
+		// Application Stores
+		a.loglevelStore = a.runtime.GoRuntime().Store.New("wails:loglevel", a.options.LogLevel)
+		a.appconfigStore = a.runtime.GoRuntime().Store.New("wails:appconfig", a.options)
+
 		a.servicebus.Start()
-		log, err := subsystem.NewLog(a.servicebus, a.logger)
+		log, err := subsystem.NewLog(a.servicebus, a.logger, a.loglevelStore)
 		if err != nil {
 			return err
 		}
@@ -102,14 +134,6 @@ func (a *App) Run() error {
 		a.dispatcher = dispatcher
 		a.dispatcher.Start()
 
-		// Start the runtime
-		runtime, err := subsystem.NewRuntime(a.servicebus, a.logger)
-		if err != nil {
-			return err
-		}
-		a.runtime = runtime
-		a.runtime.Start()
-
 		// Start the binding subsystem
 		binding, err := subsystem.NewBinding(a.servicebus, a.logger, a.bindings, runtime.GoRuntime())
 		if err != nil {
@@ -127,7 +151,7 @@ func (a *App) Run() error {
 		a.event.Start()
 
 		// Start the call subsystem
-		call, err := subsystem.NewCall(a.servicebus, a.logger, a.bindings.DB())
+		call, err := subsystem.NewCall(a.servicebus, a.logger, a.bindings.DB(), a.runtime.GoRuntime())
 		if err != nil {
 			return err
 		}
@@ -147,14 +171,3 @@ func (a *App) Run() error {
 
 	return cli.Run()
 }
-
-// Bind a struct to the application by passing in
-// a pointer to it
-func (a *App) Bind(structPtr interface{}) {
-
-	// Add the struct to the bindings
-	err := a.bindings.Add(structPtr)
-	if err != nil {
-		a.logger.Fatal("Error during binding: " + err.Error())
-	}
-}

v2/internal/binding/assets/package.json

@@ -0,0 +1,11 @@
+{
+  "name": "backend",
+  "version": "1.0.0",
+  "description": "Package to wrap backend method calls",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "",
+  "license": "ISC"
+}

v2/internal/binding/binding.go

@@ -2,28 +2,53 @@ package binding
 
 import (
 	"fmt"
+	"reflect"
+	"runtime"
 	"strings"
 
+	"github.com/leaanthony/slicer"
+
 	"github.com/wailsapp/wails/v2/internal/logger"
 )
 
 type Bindings struct {
-	db     *DB
-	logger logger.CustomLogger
+	db         *DB
+	logger     logger.CustomLogger
+	exemptions slicer.StringSlicer
 }
 
 // NewBindings returns a new Bindings object
-func NewBindings(logger *logger.Logger) *Bindings {
-	return &Bindings{
+func NewBindings(logger *logger.Logger, structPointersToBind []interface{}, exemptions []interface{}) *Bindings {
+	result := &Bindings{
 		db:     newDB(),
 		logger: logger.CustomLogger("Bindings"),
 	}
+
+	for _, exemption := range exemptions {
+		if exemptions == nil {
+			continue
+		}
+		name := runtime.FuncForPC(reflect.ValueOf(exemption).Pointer()).Name()
+		// Yuk yuk yuk! Is there a better way?
+		name = strings.TrimSuffix(name, "-fm")
+		result.exemptions.Add(name)
+	}
+
+	// Add the structs to bind
+	for _, ptr := range structPointersToBind {
+		err := result.Add(ptr)
+		if err != nil {
+			logger.Fatal("Error during binding: " + err.Error())
+		}
+	}
+
+	return result
 }
 
 // Add the given struct methods to the Bindings
 func (b *Bindings) Add(structPtr interface{}) error {
 
-	methods, err := getMethods(structPtr)
+	methods, err := b.getMethods(structPtr)
 	if err != nil {
 		return fmt.Errorf("cannot bind value to app: %s", err.Error())
 	}
@@ -36,7 +61,6 @@ func (b *Bindings) Add(structPtr interface{}) error {
 
 		// Add it as a regular method
 		b.db.AddMethod(packageName, structName, methodName, method)
-
 	}
 	return nil
 }

v2/internal/binding/boundMethod.go

@@ -30,6 +30,9 @@ func (b *BoundMethod) OutputCount() int {
 func (b *BoundMethod) ParseArgs(args []json.RawMessage) ([]interface{}, error) {
 
 	result := make([]interface{}, b.InputCount())
+	if len(args) != b.InputCount() {
+		return nil, fmt.Errorf("received %d arguments to method '%s', expected %d", len(args), b.Name, b.InputCount())
+	}
 	for index, arg := range args {
 		typ := b.Inputs[index].reflectType
 		inputValue := reflect.New(typ).Interface()

v2/internal/binding/generate.go

@@ -0,0 +1,174 @@
+package binding
+
+import (
+	"bytes"
+	_ "embed"
+	"fmt"
+	"log"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/wailsapp/wails/v2/internal/fs"
+
+	"github.com/leaanthony/slicer"
+)
+
+const _comment = `
+
+const backend = {
+        main: {
+            "xbarApp": {
+                "GetCategories": () => {
+                    window.backend.main.xbarApp.GetCategories.call(arguments);
+                },
+
+                /**
+                 * @param {string} arg1
+                 */
+                "InstallPlugin": (arg1) => {
+                    window.backend.main.xbarApp.InstallPlugin.call(arguments);
+                },
+                "GetPlugins": () => {
+                    window.backend.main.xbarApp.GetPlugins.call(arguments);
+                }
+            }
+        }
+}
+
+export default backend;`
+
+//go:embed assets/package.json
+var packageJSON []byte
+
+func (b *Bindings) GenerateBackendJS() {
+
+	store := b.db.store
+	var output bytes.Buffer
+
+	output.WriteString(`// @ts-check
+// Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
+// This file is automatically generated. DO NOT EDIT
+
+const backend = {`)
+	output.WriteString("\n")
+
+	var sortedPackageNames slicer.StringSlicer
+	for packageName := range store {
+		sortedPackageNames.Add(packageName)
+	}
+	sortedPackageNames.Sort()
+	sortedPackageNames.Each(func(packageName string) {
+		packages := store[packageName]
+		output.WriteString(fmt.Sprintf("  \"%s\": {", packageName))
+		output.WriteString("\n")
+		var sortedStructNames slicer.StringSlicer
+		for structName := range packages {
+			sortedStructNames.Add(structName)
+		}
+		sortedStructNames.Sort()
+
+		sortedStructNames.Each(func(structName string) {
+			structs := packages[structName]
+			output.WriteString(fmt.Sprintf("    \"%s\": {", structName))
+			output.WriteString("\n")
+
+			var sortedMethodNames slicer.StringSlicer
+			for methodName := range structs {
+				sortedMethodNames.Add(methodName)
+			}
+			sortedMethodNames.Sort()
+
+			sortedMethodNames.Each(func(methodName string) {
+				methodDetails := structs[methodName]
+				output.WriteString("      /**\n")
+				output.WriteString("       * " + methodName + "\n")
+				var args slicer.StringSlicer
+				for count, input := range methodDetails.Inputs {
+					arg := fmt.Sprintf("arg%d", count+1)
+					args.Add(arg)
+					output.WriteString(fmt.Sprintf("       * @param {%s} %s - Go Type: %s\n", goTypeToJSDocType(input.TypeName), arg, input.TypeName))
+				}
+				returnType := "Promise"
+				returnTypeDetails := ""
+				if methodDetails.OutputCount() > 0 {
+					firstType := goTypeToJSDocType(methodDetails.Outputs[0].TypeName)
+					returnType += "<" + firstType
+					if methodDetails.OutputCount() == 2 {
+						secondType := goTypeToJSDocType(methodDetails.Outputs[1].TypeName)
+						returnType += "|" + secondType
+					}
+					returnType += ">"
+					returnTypeDetails = " - Go Type: " + methodDetails.Outputs[0].TypeName
+				}
+				output.WriteString("       * @returns {" + returnType + "} " + returnTypeDetails + "\n")
+				output.WriteString("       */\n")
+				argsString := args.Join(", ")
+				output.WriteString(fmt.Sprintf("      \"%s\": (%s) => {", methodName, argsString))
+				output.WriteString("\n")
+				output.WriteString(fmt.Sprintf("        return window.backend.%s.%s.%s(%s);", packageName, structName, methodName, argsString))
+				output.WriteString("\n")
+				output.WriteString(fmt.Sprintf("      },"))
+				output.WriteString("\n")
+
+			})
+
+			output.WriteString(fmt.Sprintf("    }"))
+			output.WriteString("\n")
+		})
+
+		output.WriteString(fmt.Sprintf("  }\n"))
+		output.WriteString("\n")
+	})
+
+	output.WriteString(`};
+export default backend;`)
+	output.WriteString("\n")
+
+	dirname, err := fs.RelativeToCwd("frontend/src/backend")
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	if !fs.DirExists(dirname) {
+		err := fs.Mkdir(dirname)
+		if err != nil {
+			log.Fatal(err)
+		}
+	}
+
+	packageJsonFile := filepath.Join(dirname, "package.json")
+	if !fs.FileExists(packageJsonFile) {
+		err := os.WriteFile(packageJsonFile, packageJSON, 0755)
+		if err != nil {
+			log.Fatal(err)
+		}
+	}
+
+	filename := filepath.Join(dirname, "index.js")
+	err = os.WriteFile(filename, output.Bytes(), 0755)
+	if err != nil {
+		log.Fatal(err)
+	}
+}
+
+func goTypeToJSDocType(input string) string {
+	switch true {
+	case input == "string":
+		return "string"
+	case input == "error":
+		return "Error"
+	case
+		strings.HasPrefix(input, "int"),
+		strings.HasPrefix(input, "uint"),
+		strings.HasPrefix(input, "float"):
+		return "number"
+	case input == "bool":
+		return "boolean"
+	case strings.HasPrefix(input, "[]"):
+		arrayType := goTypeToJSDocType(input[2:])
+		return "Array.<" + arrayType + ">"
+	default:
+		return "any"
+	}
+}

v2/internal/binding/reflect.go

@@ -23,7 +23,7 @@ func isStruct(value interface{}) bool {
 	return reflect.ValueOf(value).Kind() == reflect.Struct
 }
 
-func getMethods(value interface{}) ([]*BoundMethod, error) {
+func (b *Bindings) getMethods(value interface{}) ([]*BoundMethod, error) {
 
 	// Create result placeholder
 	var result []*BoundMethod
@@ -56,6 +56,11 @@ func getMethods(value interface{}) ([]*BoundMethod, error) {
 		fullMethodName := baseName + "." + methodName
 		method := structValue.MethodByName(methodName)
 
+		methodReflectName := runtime.FuncForPC(methodDef.Func.Pointer()).Name()
+		if b.exemptions.Contains(methodReflectName) {
+			continue
+		}
+
 		// Create new method
 		boundMethod := &BoundMethod{
 			Name:     fullMethodName,

v2/internal/bridge/bridge.go

@@ -0,0 +1,113 @@
+package bridge
+
+import (
+	"context"
+	"log"
+	"net/http"
+	"sync"
+
+	"github.com/wailsapp/wails/v2/internal/menumanager"
+
+	"github.com/wailsapp/wails/v2/internal/messagedispatcher"
+
+	"github.com/gorilla/websocket"
+	"github.com/wailsapp/wails/v2/internal/logger"
+)
+
+type Bridge struct {
+	upgrader websocket.Upgrader
+	server   *http.Server
+	myLogger *logger.Logger
+
+	bindings   string
+	dispatcher *messagedispatcher.Dispatcher
+
+	mu       sync.Mutex
+	sessions map[string]*session
+
+	ctx    context.Context
+	cancel context.CancelFunc
+
+	// Dialog client
+	dialog *messagedispatcher.DispatchClient
+
+	// Menus
+	menumanager *menumanager.Manager
+}
+
+func NewBridge(myLogger *logger.Logger) *Bridge {
+	result := &Bridge{
+		myLogger: myLogger,
+		upgrader: websocket.Upgrader{CheckOrigin: func(r *http.Request) bool { return true }},
+		sessions: make(map[string]*session),
+	}
+
+	myLogger.SetLogLevel(1)
+
+	ctx, cancel := context.WithCancel(context.Background())
+	result.ctx = ctx
+	result.cancel = cancel
+	result.server = &http.Server{Addr: ":34115"}
+	http.HandleFunc("/bridge", result.wsBridgeHandler)
+	return result
+}
+
+func (b *Bridge) Run(dispatcher *messagedispatcher.Dispatcher, menumanager *menumanager.Manager, bindings string, debug bool) error {
+
+	// Ensure we cancel the context when we shutdown
+	defer b.cancel()
+
+	b.bindings = bindings
+	b.dispatcher = dispatcher
+	b.menumanager = menumanager
+
+	// Setup dialog handler
+	dialogClient := NewDialogClient(b.myLogger)
+	b.dialog = dispatcher.RegisterClient(dialogClient)
+	dialogClient.dispatcher = b.dialog
+
+	b.myLogger.Info("Bridge mode started.")
+
+	err := b.server.ListenAndServe()
+	if err != nil && err != http.ErrServerClosed {
+		return err
+	}
+
+	return nil
+}
+
+func (b *Bridge) wsBridgeHandler(w http.ResponseWriter, r *http.Request) {
+	c, err := b.upgrader.Upgrade(w, r, nil)
+	if err != nil {
+		log.Print("upgrade:", err)
+		return
+	}
+
+	if err != nil {
+		http.Error(w, "Could not open websocket connection", http.StatusBadRequest)
+	}
+	b.myLogger.Info("Connection from frontend accepted [%s].", c.RemoteAddr().String())
+	b.startSession(c)
+
+}
+
+func (b *Bridge) startSession(conn *websocket.Conn) {
+
+	// Create a new session for this connection
+	s := newSession(conn, b.menumanager, b.bindings, b.dispatcher, b.myLogger, b.ctx)
+
+	// Setup the close handler
+	conn.SetCloseHandler(func(int, string) error {
+		b.myLogger.Info("Connection dropped [%s].", s.Identifier())
+		b.dispatcher.RemoveClient(s.client)
+		b.mu.Lock()
+		delete(b.sessions, s.Identifier())
+		b.mu.Unlock()
+		return nil
+	})
+
+	b.mu.Lock()
+	go s.start(len(b.sessions) == 0)
+	b.sessions[s.Identifier()] = s
+	b.mu.Unlock()
+}