Backport (#283)

* Develop (#265)


* Patch for file dialog on OSX

* Update CONTRIBUTORS.md

* 262 add wails shutdown method (#264)

* feat: support close in bridge mode

* feat: WailsShutdown callback

Now handles proper shutdown through:
  * runtime.Window.Close()
  * Killing the main window
  * Ctrl-C

* chore: version bump

* chore: version bump

* feat: adjust binary name for OS

* fix: allow spaces in gcc path

* feat: migrate command

* fix: npm/node versions

* fix: allow IE for serve

* feat: go build script

* fix: make runtime ES2015 compliant

* fix: remove invoke patch

* fix: allow any line endings

* chore: remove legacy bridge files

* chore: latest assets

scripts/build.go

@@ -0,0 +1,83 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"os/exec"
+	"path/filepath"
+)
+
+// Default target to run when none is specified
+// If not set, running mage will list available targets
+// var Default = Build
+
+/*
+# Build runtime
+echo "**** Building Runtime ****"
+cd runtime/js
+npm install
+npm run build
+cd ../..
+
+echo "**** Packing Assets ****"
+cd cmd
+mewn
+cd ..
+cd lib/renderer
+mewn
+cd ../..
+
+echo "**** Installing Wails locally ****"
+cd cmd/wails
+go install
+cd ../..
+
+echo "**** Tidying the mods! ****"
+go mod tidy
+
+echo "**** WE ARE DONE! ****"
+
+*/
+
+func runCommand(command string, args ...string) {
+	cmd := exec.Command(command, args...)
+	output, err := cmd.CombinedOutput()
+	if err != nil {
+		log.Fatal(err)
+	}
+	cmd.Run()
+	fmt.Println(string(output))
+}
+
+// A build step that requires additional params, or platform specific steps for example
+func main() {
+
+	dir, _ := os.Getwd()
+
+	// Build Runtime
+	fmt.Println("**** Building Runtime ****")
+	runtimeDir, _ := filepath.Abs(filepath.Join(dir, "..", "runtime", "js"))
+	os.Chdir(runtimeDir)
+	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)
+	runCommand("go", "install")
+
+	baseDir, _ := filepath.Abs(filepath.Join(dir, ".."))
+	os.Chdir(baseDir)
+	runCommand("go", "mod", "tidy")
+}