Merge pull request 'Ask for confirmation before creating a new category' (#100) from isti/linkulator2:master into master

Reviewed-on: #100

linkulator.py

@@ -273,6 +273,14 @@ def is_valid_input(entry: str) -> bool:
         return False
     return True
 
+def is_correct_category(entry: str) -> bool:
+    """Make sure the user purposefully created a new category and not by 
+    accident (mistyped, tried to use category number instead of name)"""
+    if entry not in [ record["name"] for record in categories ]:
+        question = "Do you want to create a new category '{}'? Y/[N]".format(entry)
+        answer = input(question).lower().strip()
+        return answer != "" and answer[0] == "y"
+    return True
 
 def get_input(item: str) -> str:
     """Get user input with the specified prompt, validate and return it, or
@@ -312,6 +320,8 @@ def post_link() -> int:
     try:
         url = get_input("URL")
         category = get_input("Category")
+        while not is_correct_category(category):
+            category = get_input("Category")
         title = get_input("Title")
     except ValueError:
         print("Post cancelled")