fix init

cmd/wails/0_setup.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"fmt"
 	"runtime"
 
 	"github.com/wailsapp/wails/cmd"
@@ -17,27 +18,80 @@ func init() {
 
 	setupCommand.Action(func() error {
 
-		var successMessage = `Ready for take off!
-Create your first project by running 'wails init'.`
-		if runtime.GOOS != "windows" {
-			successMessage = "🚀 " + successMessage
-		}
-
 		system := cmd.NewSystemHelper()
 		err := system.Initialise()
 		if err != nil {
 			return err
 		}
 
-		err, success := cmd.CheckDependencies(logger)
+		var successMessage = `Ready for take off!
+Create your first project by running 'wails init'.`
+		if runtime.GOOS != "windows" {
+			successMessage = "🚀 " + successMessage
+		}
+		switch runtime.GOOS {
+		case "darwin":
+			logger.Yellow("Detected Platform: OSX")
+		case "windows":
+			logger.Yellow("Detected Platform: Windows")
+		case "linux":
+			logger.Yellow("Detected Platform: Linux")
+		default:
+			return fmt.Errorf("Platform %s is currently not supported", runtime.GOOS)
+		}
+
+		logger.Yellow("Checking for prerequisites...")
+		// Check we have a cgo capable environment
+
+		requiredPrograms, err := cmd.GetRequiredPrograms()
 		if err != nil {
 			return err
 		}
+		errors := false
+		programHelper := cmd.NewProgramHelper()
+		for _, program := range *requiredPrograms {
+			bin := programHelper.FindProgram(program.Name)
+			if bin == nil {
+				errors = true
+				logger.Red("Program '%s' not found. %s", program.Name, program.Help)
+			} else {
+				logger.Green("Program '%s' found: %s", program.Name, bin.Path)
+			}
+		}
+
+		// Linux has library deps
+		if runtime.GOOS == "linux" {
+			// Check library prerequisites
+			requiredLibraries, err := cmd.GetRequiredLibraries()
+			if err != nil {
+				return err
+			}
+			distroInfo := cmd.GetLinuxDistroInfo()
+			for _, library := range *requiredLibraries {
+				switch distroInfo.Distribution {
+				case cmd.Ubuntu:
+					installed, err := cmd.DpkgInstalled(library.Name)
+					if err != nil {
+						return err
+					}
+					if !installed {
+						errors = true
+						logger.Red("Library '%s' not found. %s", library.Name, library.Help)
+					} else {
+						logger.Green("Library '%s' installed.", library.Name)
+					}
+				default:
+					return fmt.Errorf("unable to check libraries on distribution '%s'. Please ensure that the '%s' equivalent is installed", distroInfo.DistributorID, library.Name)
+				}
+			}
+		}
+
 		logger.White("")
 
-		if success {
+		if !errors {
 			logger.Yellow(successMessage)
 		}
-		return nil
+
+		return err
 	})
 }

cmd/wails/1_init.go

@@ -34,7 +34,7 @@ Any flags that are required and not given will be prompted for.`
 			return err
 		}
 
-		err, success := cmd.CheckDependencies(logger)
+		success, err := cmd.CheckDependencies(logger)
 		if !success {
 			return err
 		}