handle linting a project in pwd

When calling "django-migration-linter ."
be able to handle it (especially with cache)

django_migration_linter/cache.py

@@ -22,7 +22,7 @@ from .utils import split_path
 class Cache(dict):
     def __init__(self, django_folder, cache_path):
         self.django_folder = django_folder
-        project_name = split_path(django_folder)[-2]
+        project_name = split_path(django_folder)[-1]
         self.filename = os.path.join(cache_path, "{0}.pickle".format(project_name))
 
         if not os.path.exists(os.path.dirname(self.filename)):

django_migration_linter/migration_linter.py

@@ -45,7 +45,7 @@ class MigrationLinter(object):
             )
 
         # Store parameters and options
-        self.django_path = project_path
+        self.django_path = os.path.abspath(project_path)
         self.ignore_name_contains = kwargs.get("ignore_name_contains", None)
         self.ignore_name = kwargs.get("ignore_name", None) or tuple()
         self.include_apps = kwargs.get("include_apps", None)

django_migration_linter/utils.py

@@ -49,7 +49,7 @@ def find_project_settings_module(path):
 
 def split_path(path):
     a, b = os.path.split(path)
-    return (split_path(a) if (len(a) > 0 and a != "/") else []) + [b]
+    return (split_path(a) if (len(a) > 0 and a != "/") else []) + ([b] if b else [])
 
 
 def split_migration_path(migration_path):