Better download list parsing

appimg/appimg.go

@@ -1,11 +1,13 @@
 package appimg
 
 type appimg struct {
-	name string
+	full    string
+	name    string
+	version string
 }
 
 func newApp(name string) appimg {
 	var out appimg
-	out.name = name
+	out.full = name
 	return out
 }

appimg/download.go

@@ -19,7 +19,7 @@ func downloadApp(parent *gtk.Window, ap appimg) {
 	})
 	spn, _ := gtk.SpinnerNew()
 	spn.Start()
-	lbl, _ := gtk.LabelNew("Downloading " + ap.name + "...")
+	lbl, _ := gtk.LabelNew("Downloading " + ap.full + "...")
 	box, _ := gtk.BoxNew(gtk.ORIENTATION_VERTICAL, 5)
 	box.SetMarginStart(10)
 	box.SetMarginEnd(10)
@@ -39,13 +39,13 @@ func downloadApp(parent *gtk.Window, ap appimg) {
 				return nil
 			},
 		}
-		resp, err := check.Get(urlBase + ap.name)
+		resp, err := check.Get(urlBase + ap.full)
 		if err != nil {
 			fmt.Println(err)
 			return
 		}
 		defer resp.Body.Close()
-		name := strings.Split(ap.name, "-")[0]
+		name := strings.Split(ap.full, "-")[0]
 		var foldName string
 		if _, err = os.Open("PortableApps/" + name + "Portable"); err == nil {
 			foldName = "PortableApps/" + name + "Portable"
@@ -55,12 +55,13 @@ func downloadApp(parent *gtk.Window, ap appimg) {
 			os.Mkdir("PortableApps/"+name+"Portable", 0777)
 			foldName = "PortableApps/" + name
 		}
-		fil, err := os.Create(foldName + "/" + ap.name)
+		os.Remove(foldName + "/" + ap.full)
+		fil, err := os.Create(foldName + "/" + ap.full)
 		if err != nil {
 			fmt.Println(err)
 			return
 		}
 		io.Copy(fil, resp.Body)
-		_ = fil.Chmod(0777)
+		fil.Chmod(0777)
 	}(win, ap)
 }

appimg/installui.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"io/ioutil"
 	"net/http"
+	"sort"
 	"strings"
 
 	"github.com/gotk3/gotk3/glib"
@@ -16,7 +17,7 @@ const (
 )
 
 //ShowUI shows the list of possible AppImages to be downloaded in a gtk.Window
-func ShowUI(clsFunc func()) {
+func ShowUI(newestVersionOnly bool, clsFunc func()) {
 	win, _ := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
 	win.Connect("destroy", func() {
 		clsFunc()
@@ -45,13 +46,44 @@ func ShowUI(clsFunc func()) {
 	win.Show()
 	getList(win, apch)
 	go func(win *gtk.Window, apch chan appimg, list *gtk.ListBox) {
-		for i := range apch {
-			glib.IdleAdd(func(list *gtk.ListBox, i appimg) {
-				lbl, _ := gtk.LabelNew(i.name)
-				list.Add(lbl)
-				apps = append(apps, i)
-				lbl.Show()
-			}, list, i)
+		if newestVersionOnly {
+			imgs := make([]appimg, 0)
+			a := make(map[string][]appimg)
+			names := make([]string, 0)
+			for i := range apch {
+				imgs = append(imgs, i)
+			}
+			for i, v := range imgs {
+				sp := strings.Split(v.full, "-")
+				if len(sp) >= 2 {
+					vers := sp[1]
+					removeLetters(vers)
+					imgs[i].version = vers
+					imgs[i].name = sp[0]
+					if _, ok := a[imgs[i].name]; !ok {
+						names = append(names, imgs[i].name)
+					}
+					a[imgs[i].name] = append(a[imgs[i].name], imgs[i])
+				}
+			}
+			sort.Strings(names)
+			for _, name := range names {
+				glib.IdleAdd(func(name string, list *gtk.ListBox, i appimg) {
+					lbl, _ := gtk.LabelNew(name)
+					list.Add(lbl)
+					apps = append(apps, i)
+					lbl.Show()
+				}, name, list, a[name][compareVersions(a[name])])
+			}
+		} else {
+			for i := range apch {
+				glib.IdleAdd(func(list *gtk.ListBox, i appimg) {
+					lbl, _ := gtk.LabelNew(i.full)
+					list.Add(lbl)
+					apps = append(apps, i)
+					lbl.Show()
+				}, list, i)
+			}
 		}
 	}(win, apch, appList)
 }

appimg/removeLetters.go

@@ -0,0 +1,12 @@
+package appimg
+
+import "strings"
+
+func removeLetters(vers string) string {
+	vers = strings.ToLower(vers)
+	letters := []string{"abcdefghijklmnopqrstuvwxyz"}
+	for _, v := range letters {
+		vers = strings.Replace(vers, v, "", -1)
+	}
+	return vers
+}

appimg/version.go

@@ -0,0 +1,33 @@
+package appimg
+
+import (
+	"strconv"
+	"strings"
+)
+
+func compareVersions(imgs []appimg) int {
+	for i := range imgs {
+		imgs[i].version = removeLetters(imgs[i].version)
+	}
+	highest := 0
+	higharr := strings.Split(imgs[0].version, ".")
+	for i := 0; i < len(imgs); i++ {
+		if i != highest {
+			varr := strings.Split(imgs[i].version, ".")
+			if len(higharr) < len(varr) {
+				for j := 0; j < len(higharr); j++ {
+					h, _ := strconv.Atoi(higharr[j])
+					c, _ := strconv.Atoi(varr[j])
+					if h > c {
+						break
+					} else if c > h {
+						highest = i
+						higharr = varr
+						break
+					}
+				}
+			}
+		}
+	}
+	return highest
+}