Fix infinite loop when creating dummy repos

Signed-off-by: Jacob Stopak <jacob@initialcommit.io>

Author: initialcommit-io

git_dummy/__main__.py

@@ -66,7 +66,7 @@ def main(
     settings.constant_sha = constant_sha
     settings.allow_nested = allow_nested
 
-    settings.git_dir = os.path.expanduser(git_dir)
+    settings.git_dir = pathlib.Path(os.path.expanduser(git_dir)).resolve()
     if not settings.no_subdir:
         settings.git_dir = os.path.join(settings.git_dir, settings.name)
 

git_dummy/util.py

@@ -18,7 +18,7 @@ def is_git_dir(path):
 
 
 def is_inside_git_dir(path):
-    while not is_dir_exist(path):
+    while path and not is_dir_exist(path):
         try:
             git.Repo(path, search_parent_directories=True)
             return True