fix(checks): improve --list-checks function (#2240)

prowler/__main__.py

@@ -11,6 +11,7 @@ from prowler.lib.check.check import (
     exclude_services_to_run,
     execute_checks,
     list_categories,
+    list_checks,
     list_services,
     parse_checks_from_folder,
     print_categories,
@@ -61,13 +62,6 @@ def prowler():
     if not args.no_banner:
         print_banner(args)
 
-    # Set the audit info based on the selected provider
-    audit_info = set_provider_audit_info(provider, args.__dict__)
-
-    # Import custom checks from folder
-    if checks_folder:
-        parse_checks_from_folder(audit_info, checks_folder, provider)
-
     # We treat the compliance framework as another output format
     if compliance_framework:
         args.output_modes.extend(compliance_framework)
@@ -105,6 +99,18 @@ def prowler():
         )
         sys.exit()
 
+    # If -l/--list-checks passed as argument, print checks to execute and quit
+    if args.list_checks:
+        print_checks(provider, list_checks(provider), bulk_checks_metadata)
+        sys.exit()
+
+    # Set the audit info based on the selected provider
+    audit_info = set_provider_audit_info(provider, args.__dict__)
+
+    # Import custom checks from folder
+    if checks_folder:
+        parse_checks_from_folder(audit_info, checks_folder, provider)
+
     # Load checks to execute
     checks_to_execute = load_checks_to_execute(
         bulk_checks_metadata,
@@ -131,11 +137,6 @@ def prowler():
     # Sort final check list
     checks_to_execute = sorted(checks_to_execute)
 
-    # If -l/--list-checks passed as argument, print checks to execute and quit
-    if args.list_checks:
-        print_checks(provider, checks_to_execute, bulk_checks_metadata)
-        sys.exit()
-
     # Once the audit_info is set and we have the eventual checks based on the resource identifier,
     # it is time to check what Prowler's checks are going to be executed
     if audit_info.audit_resources:

prowler/lib/check/check.py

@@ -193,6 +193,14 @@ def list_services(provider: str) -> set():
     return sorted(available_services)
 
 
+def list_checks(provider: str) -> set():
+    available_checks = set()
+    checks_tuple = recover_checks_from_provider(provider)
+    for check_name, _ in checks_tuple:
+        available_checks.add(check_name)
+    return sorted(available_checks)
+
+
 def list_categories(provider: str, bulk_checks_metadata: dict) -> set():
     available_categories = set()
     for check in bulk_checks_metadata.values():