Added single ID refresh

patches/refresh-anime-thumbnails/refresh-anime-thumbnails.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"flag"
 	"fmt"
 	"io/ioutil"
 	"os"
@@ -16,36 +17,59 @@ func main() {
 	defer arn.Node.Close()
 	defer color.Green("Finished.")
 
+	// Parse flags
+	var animeID string
+	flag.StringVar(&animeID, "id", "", "ID of the anime that you want to refresh")
+	flag.Parse()
+
+	// Refresh 1 anime in case ID was specified
+	if animeID != "" {
+		anime, _ := arn.GetAnime(animeID)
+
+		if anime != nil {
+			sync(anime)
+		}
+
+		return
+	}
+
+	// Otherwise refresh all anime
 	for anime := range arn.StreamAnime() {
+		sync(anime)
+	}
+}
+
+// sync refreshes the image of the given anime.
+func sync(anime *arn.Anime) {
 	base := path.Join(arn.Root, "/images/anime/original/", anime.ID)
 
 	if _, err := os.Stat(base + ".png"); err == nil {
 		update(anime, base+".png")
-			continue
+		return
 	}
 
 	if _, err := os.Stat(base + ".jpg"); err == nil {
 		update(anime, base+".jpg")
-			continue
+		return
 	}
 
 	if _, err := os.Stat(base + ".jpeg"); err == nil {
 		update(anime, base+".jpg")
-			continue
+		return
 	}
 
 	if _, err := os.Stat(base + ".gif"); err == nil {
 		update(anime, base+".gif")
-			continue
+		return
 	}
 
 	if _, err := os.Stat(base + ".webp"); err == nil {
 		update(anime, base+".webp")
-			continue
+		return
-		}
 	}
 }
 
+// update expects a file to load as image for the anime and updates it.
 func update(anime *arn.Anime, filePath string) {
 	fmt.Println(anime.ID, anime)