Gracefully exit on info with no 2nd parameter

api/api.go

@@ -44,6 +44,7 @@ type Version struct {
 }
 
 // CheckAPICache checks if the cached json is expired
+// TODO: REWRITE
 func CheckAPICache() {
 	// TODO: move the printing out, add returns
 
@@ -70,6 +71,7 @@ func CheckAPICache() {
 }
 
 // UpdateAPICache gets a new copy of the thunderstore pkgfile
+// TODO: ARIA2 IMPLEMENTATION
 func UpdateAPICache() {
 	apiURL := "https://thunderstore.io/api/v1/package/"
 

main.go

@@ -42,16 +42,20 @@ func main() {
  > remove, rem, r -- remove mod(s)
  > list, ls, li -- list mods
  > update, upgrade, up -- update mods and API cache
- > toggle, tg, togglemods -- toggle mods
+ > toggle, tm, togglemods -- toggle mods
  > filter -- remove version numbers using regex from stdin
  `)
 	case "info":
+		if len(os.Args) <= 2 {
+			fmt.Println("Usage: r2mod-go info <dependency string>")
+		} else {
 			var selectedmod api.Mod = api.GetModData(os.Args[2])
 			color.Cyan("Mod Info: %s", os.Args[2])
 			fmt.Println("  Name: " + selectedmod.Versions[0].FullName)
 			fmt.Println("  Desc: " + selectedmod.Versions[0].Description)
 			fmt.Println("  Version: " + selectedmod.Versions[0].VersionNumber)
 			fmt.Println("  Download URL: " + selectedmod.Versions[0].DownloadURL)
+		}
 	case "install", "ins", "i":
 		api.CheckAPICache()
 		for _, m := range os.Args[2:] {