Fix issue where every directory would be ignored for an empty input

build.sh

@@ -0,0 +1 @@
+docker build -t directory-cleaner .

main.go

@@ -86,6 +86,7 @@ func scanRoot() {
 		// We hope that IGNORED_DIRECTORIES is a small list, so we can afford to iterate over it
 		// In fact iteration should be faster for small lists rather than hashing
 		for _, ignoredDir := range constants.IGNORED_DIRECTORIES {
+			log.Println(constants.IGNORED_DIRECTORIES, len(constants.IGNORED_DIRECTORIES))
 			if strings.HasPrefix(path, ignoredDir) {
 				log.Printf("Ignoring directory %s\n", path)
 				return nil
@@ -180,7 +181,12 @@ func main() {
 	var ROOT = filepath.ToSlash(strings.TrimSpace(getEnv("ROOT", "/tmp")))
 	var ROOT_ARCHIVE = filepath.ToSlash(strings.TrimSpace(getEnv("ROOT_ARCHIVE", ROOT+"/archive")))
 	os.Mkdir(ROOT_ARCHIVE, os.ModePerm)
-	var IGNORED_DIRECTORIES = strings.Split(getEnv("IGNORED_DIRECTORIES", ""), ",")
+	var IGNORED_DIRECTORIES = []string{}
+	var ignoredEnv = getEnv("IGNORED_DIRECTORIES", "")
+	if ignoredEnv != "" {
+		ignoredEnv = strings.TrimSpace(ignoredEnv)
+		IGNORED_DIRECTORIES = append(IGNORED_DIRECTORIES, strings.Split(ignoredEnv, ",")...)
+	}
 	IGNORED_DIRECTORIES = append(IGNORED_DIRECTORIES, ROOT_ARCHIVE)
 	for key, dir := range IGNORED_DIRECTORIES {
 		IGNORED_DIRECTORIES[key] = filepath.ToSlash(strings.TrimSpace(dir))
@@ -204,7 +210,8 @@ func main() {
 	log.Printf("DELETE_THRESHOLD: %d\n", DELETE_THRESHOLD)
 	log.Printf("SCAN_INTERVAL: %d\n", SCAN_INTERVAL.Milliseconds())
 
-	// scanRoot()
+	scanRoot()
+	scanArchive()
 	for {
 		log.Printf("Running at %d", time.Now().UnixMilli())
 		time.Sleep(SCAN_INTERVAL)