Add schema diff to the output (#73)

src/rpdk/guard_rail/core/data_types.py

@@ -19,7 +19,7 @@
         )
 """
 from dataclasses import dataclass, field
-from typing import Any, Dict, List
+from typing import Any, Dict, List, Optional
 
 from rich.console import Console
 from rich.table import Table
@@ -78,12 +78,14 @@ class GuardRuleSetResult:
         non_compliant: rules, that schema(s) failed
         warning: rules, that schema(s) failed but it's not a hard requirement
         skipped: rules, that are not applicable to the schema(s)
+        schema_difference: optional dictionary containing schema difference
     """
 
     compliant: List[str] = field(default_factory=list)
     non_compliant: Dict[str, List[GuardRuleResult]] = field(default_factory=dict)
     warning: Dict[str, List[GuardRuleResult]] = field(default_factory=dict)
     skipped: List[str] = field(default_factory=list)
+    schema_difference: Optional[dict] = field(default_factory=dict)
 
     def merge(self, guard_ruleset_result: Any):
         """Merges the result into a nice mutual set.

src/rpdk/guard_rail/core/runner.py

@@ -183,12 +183,13 @@ def __execute__(schema_exec, ruleset):
             output = schema_exec(rules)
         return output
 
-    schema_to_execute = __exec_rules__(
-        schema=schema_diff(
-            previous_json=payload.previous_schema, current_json=payload.current_schema
-        )
+    schema_difference = schema_diff(
+        previous_json=payload.previous_schema, current_json=payload.current_schema
     )
+
+    schema_to_execute = __exec_rules__(schema=schema_difference)
     output = __execute__(schema_exec=schema_to_execute, ruleset=ruleset)
+    output.schema_difference = schema_difference
     compliance_output.append(output)
 
     return compliance_output

tests/unit/core/test_data_types.py

@@ -37,5 +37,5 @@ def test_success_result_str():
                 }
             )
         )
-        == "GuardRuleSetResult(compliant=[], non_compliant={'ensure_old_property_not_turned_immutable': {GuardRuleResult(check_id='MI007', message='cannot remove minimum from properties', path='/minimum/removed')}}, warning={}, skipped=[])"  # pylint: disable=C0301
+        == "GuardRuleSetResult(compliant=[], non_compliant={'ensure_old_property_not_turned_immutable': {GuardRuleResult(check_id='MI007', message='cannot remove minimum from properties', path='/minimum/removed')}}, warning={}, skipped=[], schema_difference={})"  # pylint: disable=C0301
     )