Ruby refactor

shallow_backup/backup.py

@@ -138,12 +138,11 @@ def run_cmd_if_no_dry_run(command, dest, dry_run) -> int:
 	if not dry_run:
 		overwrite_dir_prompt_if_needed(backup_path, skip)
 
-	for mgr in ["gem"]:
-		# deal with package managers that have spaces in them.
-		print_pkg_mgr_backup(mgr)
-		command = f"{mgr} list"
-		dest = f"{backup_path}/{mgr.replace(' ', '-')}_list.txt"
-		run_cmd_if_no_dry_run(command, dest, dry_run)
+	# ruby
+	print_pkg_mgr_backup(mgr)
+	command = f"{mgr} list"
+	dest = f"{backup_path}/{mgr.replace(' ', '-')}_list.txt"
+	run_cmd_if_no_dry_run(command, dest, dry_run)
 
 	# brew
 	print_pkg_mgr_backup("brew")