feat: Skip processing files with no effective changes

Adds logic to identify  instances where all planned edits are no-ops (i.e., the resulting code is identical to the original).

- Introduces  method.
- Modifies  to skip printing and applying edits for files marked as no-op.

Author: nedn

ai_scripting/ai_edit.py

@@ -82,11 +82,13 @@ def print_plan(self):
         console_instance.print(f"[bold green]Edit Plan:[/bold green]")
         console_instance.print(f"[bold green]Files to edit:[/bold green]")
         for file in self._files:
-            console_instance.print(f"[bold green]{file.filepath}[/bold green]")
+            if not file.is_no_op_edit:
+                console_instance.print(f"[bold green]{file.filepath}[/bold green]")
 
     def apply_edits(self):
         for file in self._files:
-            file.apply_edits()
+            if not file.is_no_op_edit:
+                file.apply_edits()
 
 def edit_code_blocks(
     code_blocks: List[code_block.CodeBlock],

ai_scripting/code_block.py

@@ -140,6 +140,10 @@ def whole_file_as_edit_block(self) -> EditCodeBlock:
                     lines=[Line(line_number=i+1, content=line) for i, line in enumerate(self.original_file_content.split("\n"))])
         return self._edited_block_for_whole_file
 
+    def is_no_op_edit(self) -> bool:
+        """Returns True if all the edited blocks are no-op edits."""
+        return all(block.is_no_op_edit for block in self.blocks_to_edit)
+
     def apply_edits(self):
         """Applies the edits to the file."""
         if self._already_applied_edits: