From 3664802f290e4450ddb480a864a451afa58f45a1 Mon Sep 17 00:00:00 2001
From: Alexandre Aubin <alex.aubin@mailoo.org>
Date: Wed, 27 Mar 2019 14:52:10 +0100
Subject: [PATCH] Show a warning if 'optional' critera for argument ain't a
 bool

---
 package_linter.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/package_linter.py b/package_linter.py
index 0d18a04..564db6c 100755
--- a/package_linter.py
+++ b/package_linter.py
@@ -386,6 +386,9 @@ class App():
             recognized_types = ("domain", "path", "boolean", "app", "password", "user", "string")
 
             for argument in manifest["arguments"]["install"]:
+                if "optional" in argument.keys():
+                    if not isinstance(argument["optional"], bool):
+                        print_warning("The key 'optional' value for setting %s should be a boolean (true or false)" % argument["name"])
                 if "type" not in argument.keys():
                     print_warning(
                         "[YEP-2.1] You should specify the type of the argument '%s'. "