Initial support for embed

cmd/helpers.go

@@ -2,7 +2,6 @@ package cmd
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"os/exec"
 	"os/user"
@@ -12,10 +11,10 @@ import (
 	"strings"
 	"time"
 
-	"github.com/leaanthony/mewn"
 	"github.com/leaanthony/mewn/lib"
 	"github.com/leaanthony/slicer"
 	"github.com/leaanthony/spinner"
+	wailsruntime "github.com/wailsapp/wails/runtime"
 )
 
 const xgoVersion = "1.0.1"
@@ -79,7 +78,10 @@ func EmbedAssets() ([]string, error) {
 		}
 		targetFile := filepath.Join(referencedAsset.BaseDir, referencedAsset.PackageName+"-mewn.go")
 		targetFiles = append(targetFiles, targetFile)
-		ioutil.WriteFile(targetFile, []byte(packfileData), 0644)
+		err = os.WriteFile(targetFile, []byte(packfileData), 0644)
+		if err != nil {
+			return []string{}, err
+		}
 	}
 
 	return targetFiles, nil
@@ -127,7 +129,10 @@ func BuildDocker(binaryName string, buildMode string, projectOptions *ProjectOpt
 	// Check build directory
 	buildDirectory := filepath.Join(fs.Cwd(), "build")
 	if !fs.DirExists(buildDirectory) {
-		fs.MkDir(buildDirectory)
+		err := fs.MkDir(buildDirectory)
+		if err != nil {
+			return err
+		}
 	}
 
 	buildCommand := slicer.String()
@@ -493,11 +498,18 @@ func InstallFrontendDeps(projectDir string, projectOptions *ProjectOptions, forc
 		}
 
 		// Update md5sum file
-		ioutil.WriteFile(md5sumFile, []byte(packageJSONMD5), 0644)
+		err := os.WriteFile(md5sumFile, []byte(packageJSONMD5), 0644)
+		if err != nil {
+			return err
+		}
 	}
 
 	// Install the runtime
-	err = InstallRuntime(caller, projectDir, projectOptions)
+	if caller == "build" {
+		err = InstallProdRuntime(projectDir, projectOptions)
+	} else {
+		err = InstallBridge(projectDir, projectOptions)
+	}
 	if err != nil {
 		return err
 	}
@@ -510,28 +522,17 @@ func InstallFrontendDeps(projectDir string, projectOptions *ProjectOptions, forc
 	return nil
 }
 
-// InstallRuntime installs the correct runtime for the type of build
-func InstallRuntime(caller string, projectDir string, projectOptions *ProjectOptions) error {
-	if caller == "build" {
-		return InstallProdRuntime(projectDir, projectOptions)
-	}
-
-	return InstallBridge(projectDir, projectOptions)
-}
-
 // InstallBridge installs the relevant bridge javascript library
 func InstallBridge(projectDir string, projectOptions *ProjectOptions) error {
-	bridgeFileData := mewn.String("../runtime/assets/bridge.js")
 	bridgeFileTarget := filepath.Join(projectDir, projectOptions.FrontEnd.Dir, "node_modules", "@wailsapp", "runtime", "init.js")
-	err := fs.CreateFile(bridgeFileTarget, []byte(bridgeFileData))
+	err := fs.CreateFile(bridgeFileTarget, wailsruntime.BridgeJS)
 	return err
 }
 
 // InstallProdRuntime installs the production runtime
 func InstallProdRuntime(projectDir string, projectOptions *ProjectOptions) error {
-	prodInit := mewn.String("../runtime/js/runtime/init.js")
 	bridgeFileTarget := filepath.Join(projectDir, projectOptions.FrontEnd.Dir, "node_modules", "@wailsapp", "runtime", "init.js")
-	err := fs.CreateFile(bridgeFileTarget, []byte(prodInit))
+	err := fs.CreateFile(bridgeFileTarget, wailsruntime.InitJS)
 	return err
 }
 

cmd/wails/4_build.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"fmt"
+	"log"
 	"os"
 	"runtime"
 	"strings"
@@ -52,7 +53,10 @@ func init() {
 
 	var b strings.Builder
 	for _, plat := range getSupportedPlatforms() {
-		fmt.Fprintf(&b, " - %s\n", plat)
+		_, err := fmt.Fprintf(&b, " - %s\n", plat)
+		if err != nil {
+			log.Fatal(err)
+		}
 	}
 	initCmd.StringFlag("x",
 		fmt.Sprintf("Cross-compile application to specified platform via xgo\n%s", b.String()),
@@ -80,7 +84,7 @@ func init() {
 		fs := cmd.NewFSHelper()
 		err := projectOptions.LoadConfig(fs.Cwd())
 		if err != nil {
-			return fmt.Errorf("Unable to find 'project.json'. Please check you are in a Wails project directory")
+			return fmt.Errorf("unable to find 'project.json'. Please check you are in a Wails project directory")
 		}
 
 		// Set firebug flag
@@ -143,12 +147,6 @@ func init() {
 			if err != nil {
 				return err
 			}
-
-			// Ensure that runtime init.js is the production version
-			err = cmd.InstallProdRuntime(projectDir, projectOptions)
-			if err != nil {
-				return err
-			}
 		}
 
 		// Move to project directory

go.mod

@@ -28,4 +28,4 @@ require (
 	gopkg.in/yaml.v3 v3.0.0-20190709130402-674ba3eaed22
 )
 
-go 1.13
+go 1.16

go.sum

@@ -66,7 +66,6 @@ github.com/syossan27/tebata v0.0.0-20180602121909-b283fe4bc5ba h1:2DHfQOxcpWdGf5
 github.com/syossan27/tebata v0.0.0-20180602121909-b283fe4bc5ba/go.mod h1:iLnlXG2Pakcii2CU0cbY07DRCSvpWNa7nFxtevhOChk=
 golang.org/x/crypto v0.0.0-20190123085648-057139ce5d2b/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9 h1:psW17arqaxU48Z5kZ0CQnkZWQJsqcURM6tKiBApRjXI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/image v0.0.0-20200430140353-33d19683fad8 h1:6WW6V3x1P/jokJBpRQYUJnMHRP6isStQwCozxnU7XQw=
 golang.org/x/image v0.0.0-20200430140353-33d19683fad8/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=

lib/renderer/bridge/session.go

@@ -3,8 +3,9 @@ package renderer
 import (
 	"time"
 
+	"github.com/wailsapp/wails/runtime"
+
 	"github.com/gorilla/websocket"
-	"github.com/leaanthony/mewn"
 	"github.com/wailsapp/wails/lib/interfaces"
 	"github.com/wailsapp/wails/lib/logger"
 )
@@ -58,8 +59,7 @@ 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)
+	s.evalJS(runtime.WailsJS, wailsRuntimeMessage)
 
 	// Inject bindings
 	for _, binding := range s.bindingCache {

lib/renderer/webview.go

@@ -8,8 +8,9 @@ import (
 	"sync"
 	"time"
 
+	"github.com/wailsapp/wails/runtime"
+
 	"github.com/go-playground/colors"
-	"github.com/leaanthony/mewn"
 	"github.com/wailsapp/wails/lib/interfaces"
 	"github.com/wailsapp/wails/lib/logger"
 	"github.com/wailsapp/wails/lib/messages"
@@ -183,8 +184,7 @@ func (w *WebView) Run() error {
 	}
 
 	// Runtime assets
-	wailsRuntime := mewn.String("../../runtime/assets/wails.js")
-	w.evalJS(wailsRuntime)
+	w.evalJS(runtime.WailsJS)
 
 	// Ping the wait channel when the wails runtime is loaded
 	w.eventManager.On("wails:loaded", func(...interface{}) {
@@ -207,10 +207,8 @@ func (w *WebView) Run() error {
 				w.injectCSS(w.config.GetCSS())
 			} else {
 				// Use default wails css
-				w.log.Debug("Injecting Default Wails CSS")
-				defaultCSS := mewn.String("../../runtime/assets/wails.css")
-
-				w.injectCSS(defaultCSS)
+				w.log.Debug("Injecting Default Wails CSS: " + string(runtime.WailsCSS))
+				w.injectCSS(runtime.WailsCSS)
 			}
 
 			// Inject user JS

runtime/assets.go

@@ -0,0 +1,15 @@
+package runtime
+
+import _ "embed"
+
+//go:embed assets/bridge.js
+var BridgeJS []byte
+
+//go:embed assets/wails.js
+var WailsJS string
+
+//go:embed assets/wails.css
+var WailsCSS string
+
+//go:embed js/runtime/init.js
+var InitJS []byte

scripts/build.go

@@ -48,7 +48,6 @@ func runCommand(command string, args ...string) {
 		log.Println(string(output))
 		log.Fatal(err)
 	}
-	cmd.Run()
 	fmt.Println(string(output))
 }
 
@@ -60,26 +59,26 @@ func main() {
 	// Build Runtime
 	fmt.Println("**** Building Runtime ****")
 	runtimeDir, _ := filepath.Abs(filepath.Join(dir, "..", "runtime", "js"))
-	os.Chdir(runtimeDir)
+	err := os.Chdir(runtimeDir)
+	if err != nil {
+		log.Fatal(err)
+	}
 	runCommand("npm", "install")
 	runCommand("npm", "run", "build")
 
-	// Pack assets
-	fmt.Println("**** Packing Assets ****")
-	rendererDir, _ := filepath.Abs(filepath.Join(dir, "..", "lib", "renderer"))
-	os.Chdir(rendererDir)
-	runCommand("mewn")
-	cmdDir, _ := filepath.Abs(filepath.Join(dir, "..", "cmd"))
-	os.Chdir(cmdDir)
-	runCommand("mewn")
-
 	// Install Wails
 	fmt.Println("**** Installing Wails locally ****")
 	execDir, _ := filepath.Abs(filepath.Join(dir, "..", "cmd", "wails"))
-	os.Chdir(execDir)
+	err = os.Chdir(execDir)
+	if err != nil {
+		log.Fatal(err)
+	}
 	runCommand("go", "install")
 
 	baseDir, _ := filepath.Abs(filepath.Join(dir, ".."))
-	os.Chdir(baseDir)
+	err = os.Chdir(baseDir)
+	if err != nil {
+		log.Fatal(err)
+	}
 	runCommand("go", "mod", "tidy")
 }