Implement cleaning up path and removing non existent ones

.gitignore

@@ -0,0 +1 @@
+main.log

main.go

@@ -6,11 +6,14 @@ import (
 	"log"
 	"os"
 	"os/exec"
+	"path/filepath"
+	"slices"
 	"strings"
 )
 
 var Error *log.Logger
 var Warning *log.Logger
+
 func init() {
 	log.SetFlags(log.Lmicroseconds | log.Lshortfile)
 	logFile, err := os.Create("main.log")
@@ -30,44 +33,63 @@ func init() {
 }
 
 func main() {
-	// Get the current PATH
 	currentPath := os.Getenv("PATH")
 	paths := strings.Split(currentPath, ";")
 
-	// Define paths to always include
 	alwaysInclude := []string{
 		"C:\\Program Files\\Git\\usr\\bin",
 		os.Getenv("GOPATH") + "\\bin",
 	}
 
-	// Clean up the PATH
 	cleanPaths := []string{}
 	for _, path := range paths {
-		// Check if the path exists
-		if _, err := os.Stat(path); err == nil {
-			cleanPaths = append(cleanPaths, path)
+		var err error
+		path = filepath.Clean(path)
+		if !filepath.IsAbs(path) {
+			path, err = filepath.Abs(path)
+			if err != nil {
+				Error.Printf("error getting absolute path for %v: %v", path, err)
+				return
+			}
 		}
+		path = filepath.FromSlash(path)
+
+		fhandle, err := os.Open(path)
+		if err != nil {
+			if os.IsNotExist(err) {
+				Warning.Printf("Path %v does not exist", path)
+				continue
+			}
+			Warning.Printf("Error opening path %v: %v", path, err)
+			continue
+		}
+		fhandle.Close()
+
+		if slices.Contains(cleanPaths, path) {
+			Warning.Printf("Path %v already exists in cleanPaths", path)
+			continue
+		}
+
+		cleanPaths = append(cleanPaths, path)
+		log.Printf("Added path %v", path)
 	}
 
-	// Add the always include paths
 	for _, path := range alwaysInclude {
 		if !contains(cleanPaths, path) {
 			cleanPaths = append(cleanPaths, path)
 		}
 	}
 
-	// Join the clean paths
 	newPath := strings.Join(cleanPaths, ";")
 
-	// Set the new PATH permanently
 	cmd := exec.Command("setx", "PATH", newPath)
-	err := cmd.Run()
+	out, err := cmd.CombinedOutput()
 	if err != nil {
-		fmt.Println("Error setting PATH:", err)
+		Error.Printf("Error setting PATH with error: %v and output:\n%s", err, string(out))
 		return
 	}
 
-	fmt.Println("PATH has been updated successfully.")
+	log.Printf("PATH has been updated successfully")
 }
 
 func contains(slice []string, item string) bool {
@@ -77,4 +99,4 @@ func contains(slice []string, item string) bool {
 		}
 	}
 	return false
-}
+}