initial push with clean and rebuild commands

engine/generateFiles.go

@@ -0,0 +1,50 @@
+package engine
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"os"
+	"os/exec"
+	"strings"
+
+	"golang.org/x/sys/windows/registry"
+)
+
+func findUnrealPath() (string, error) {
+	//Attempting to generate project files programattically
+	k, err := registry.OpenKey(registry.CLASSES_ROOT, `Unreal.ProjectFile\DefaultIcon`, registry.QUERY_VALUE)
+	if err != nil {
+		return "", err
+	}
+	defer k.Close()
+	s, _, err := k.GetStringValue("") //Pulling the (Default) value which has the path
+	if err != nil {
+		return "", err
+	}
+	s = strings.Trim(s, "\"") //Trim the quotes from around the string
+	return s, nil
+}
+
+func generateFiles(projectFileABSPath string) error {
+	// find the path to versionswitcher which is not in a specific unreal version directory since it needs to switch between versions
+	unrealExPath, err := findUnrealPath()
+	if err != nil {
+		fmt.Println("Unable to find the path to Unreal engine, please generate project files manually: ", err)
+		bufio.NewReader(os.Stdin).ReadBytes('\n')
+		os.Exit(1)
+	}
+	checkPath(unrealExPath) // Verifying path, will exit if fail
+	fmt.Println("Using Unreal Engine Path: ", unrealExPath)
+	generateArgs := []string{"/projectfiles", projectFileABSPath}
+	generateFilesCMD := exec.Command(unrealExPath, generateArgs...)
+	// var stdBuffer bytes.Buffer
+	// mw := io.MultiWriter(os.Stdout, &stdBuffer)
+	out := io.Writer(os.Stdout)
+	generateFilesCMD.Stdout = out
+	err = generateFilesCMD.Run()
+	if err != nil {
+		return err
+	}
+	return nil
+}