fix: initialize results and failed_count before directory check in import functions (#178)

All _import_* functions now initialize results=[] and failed_count=0 before
checking if directory exists. This prevents UnboundLocalError when importing
partial exports that don't include all resource types.

Fixed functions:
- _import_catalog: Added results=[] and failed_count=0
- _import_plugins: Added results=[] and failed_count=0
- _import_scorecards: Added results=[] and failed_count=0
- _import_workflows: Added results=[] and failed_count=0

Fixes #171

Author: jeff-schnitter

cortexapps_cli/commands/backup.py

@@ -472,6 +472,8 @@ def import_relationships_file(file_info):
     return ("entity-relationships", len(results) - failed_count, [(fp, et, em) for rt, fp, et, em in results if et])
 
 def _import_catalog(ctx, directory):
+    results = []
+    failed_count = 0
     if os.path.isdir(directory):
         print("Processing: " + directory)
         files = [(filename, os.path.join(directory, filename))
@@ -507,6 +509,8 @@ def import_catalog_file(file_info):
     return ("catalog", len(results) - failed_count, [(fp, et, em) for fn, fp, et, em in results if et])
 
 def _import_plugins(ctx, directory):
+    results = []
+    failed_count = 0
     if os.path.isdir(directory):
         print("Processing: " + directory)
         files = [(filename, os.path.join(directory, filename))
@@ -543,6 +547,8 @@ def import_plugin_file(file_info):
     return ("plugins", len(results) - failed_count, [(fp, et, em) for fn, fp, et, em in results if et])
 
 def _import_scorecards(ctx, directory):
+    results = []
+    failed_count = 0
     if os.path.isdir(directory):
         print("Processing: " + directory)
         files = [(filename, os.path.join(directory, filename))
@@ -579,6 +585,8 @@ def import_scorecard_file(file_info):
     return ("scorecards", len(results) - failed_count, [(fp, et, em) for fn, fp, et, em in results if et])
 
 def _import_workflows(ctx, directory):
+    results = []
+    failed_count = 0
     if os.path.isdir(directory):
         print("Processing: " + directory)
         files = [(filename, os.path.join(directory, filename))