Ready to test then bug fix :)

Also, I'm ALIVE!!!!

update.go

@@ -1,17 +1,18 @@
 package main
 
 import (
+	"bufio"
+	"fmt"
 	"io"
 	"net/http"
 	"os"
-)
-
-var (
-	updateNeeded = false
+	"strconv"
+	"strings"
 )
 
 const (
-	versionURL = "https://www.dropbox.com/s/a0xizzo0a4vsfqt/Version?dl=1"
+	versionURL  = "https://www.dropbox.com/s/a0xizzo0a4vsfqt/Version?dl=1"
+	downloadURL = "https://github.com/CalebQ42/LinuxPA/releases/download/vXXX/LinuxPA"
 )
 
 //Thanks to https://www.socketloop.com/tutorials/golang-download-file-example
@@ -26,6 +27,7 @@ func versionDL() bool {
 			return false
 		}
 	}
+	defer versionFile.Close()
 	check := http.Client{
 		CheckRedirect: func(r *http.Request, via []*http.Request) error {
 			r.URL.Opaque = r.URL.Path
@@ -33,6 +35,7 @@ func versionDL() bool {
 		},
 	}
 	response, err := check.Get(versionURL)
+	defer response.Body.Close()
 	if err != nil {
 		return false
 	}
@@ -42,3 +45,65 @@ func versionDL() bool {
 	}
 	return true
 }
+
+func getVersionFileInfo() string {
+	fil, err := os.Open("PortableApps/LinuxPACom/Version")
+	if err != nil {
+		return "Error!"
+	}
+	rdr := bufio.NewReader(fil)
+	out, _, _ := rdr.ReadLine()
+	return string(out)
+}
+
+func checkForUpdate(cur string, new string) bool {
+	curSlice := strings.Split(cur, ".")
+	newSlice := strings.Split(new, ".")
+	curNums := make([]int, 4)
+	newNums := make([]int, 4)
+	for i, v := range curSlice {
+		num, err := strconv.Atoi(v)
+		if err == nil {
+			curNums[i] = num
+		}
+		num, err = strconv.Atoi(newSlice[i])
+		if err == nil {
+			newNums[i] = num
+		}
+		if newNums[i] > curNums[i] {
+			return true
+		}
+	}
+	return false
+}
+
+func downloadUpdate(newVersion string) bool {
+	url := strings.Replace(downloadURL, "XXX", newVersion, -1)
+	err := os.Rename("LinuxPA", ".LinuxPA.old")
+	if err != nil {
+		fmt.Println(err)
+		return false
+	}
+	fil, err := os.Create("LinuxPA")
+	defer fil.Close()
+	if err != nil {
+		os.Rename(".LinuxPA.old", "LinuxPA")
+		return false
+	}
+	check := http.Client{
+		CheckRedirect: func(r *http.Request, via []*http.Request) error {
+			r.URL.Opaque = r.URL.Path
+			return nil
+		},
+	}
+	re, err := check.Get(url)
+	defer re.Body.Close()
+	if err != nil {
+		return false
+	}
+	_, err = io.Copy(fil, re.Body)
+	if err != nil {
+		return false
+	}
+	return true
+}