added better error handling

moved openai key to a function call for easier calling

wolverine.py

@@ -5,15 +5,15 @@ import os
 import shutil
 import subprocess
 import sys
-
 import openai
 from termcolor import cprint
 
-# Set up the OpenAI API
+# Load the OpenAI API key
+def load_openai_key():
     with open("openai_key.txt") as f:
-    openai.api_key = f.read().strip()
-
+        return f.read().strip()
 
+# Run the provided script and return the output and return code
 def run_script(script_name, script_args):
     script_args = [str(arg) for arg in script_args]
     try:
@@ -24,8 +24,8 @@ def run_script(script_name, script_args):
         return e.output.decode("utf-8"), e.returncode
     return result.decode("utf-8"), 0
 
-
-def send_error_to_gpt(file_path, args, error_message, model):
+# Send the error to GPT and receive suggestions
+def send_error_to_gpt(file_path, args, error_message, model, prompt_length_limit=4096):
     with open(file_path, "r") as f:
         file_lines = f.readlines()
 
@@ -50,7 +50,9 @@ def send_error_to_gpt(file_path, args, error_message, model):
         "exact format as described above."
     )
 
-    # print(prompt)
+    # Truncate the prompt if it exceeds the limit
+    if len(prompt) > prompt_length_limit:
+        prompt = prompt[:prompt_length_limit]
 
     response = openai.ChatCompletion.create(
         model=model,
@@ -65,20 +67,19 @@ def send_error_to_gpt(file_path, args, error_message, model):
 
     return response.choices[0].message.content.strip()
 
-
+# Apply the changes suggested by GPT
 def apply_changes(file_path, changes_json):
+    try:
         with open(file_path, "r") as f:
             original_file_lines = f.readlines()
 
         changes = json.loads(changes_json)
 
-    # Filter out explanation elements
         operation_changes = [change for change in changes if "operation" in change]
         explanations = [
             change["explanation"] for change in changes if "explanation" in change
         ]
 
-    # Sort the changes in reverse line order
         operation_changes.sort(key=lambda x: x["line"], reverse=True)
 
         file_lines = original_file_lines.copy()
@@ -104,6 +105,12 @@ def apply_changes(file_path, changes_json):
 
         # Show the diff
         print("\nChanges:")
+        print_diff(original_file_lines, file_lines)
+    except Exception as e:
+        raise Exception(f"Failed to apply changes: {str(e)}")
+
+# Print the differences between two file contents
+def print_diff(original_file_lines, file_lines):
     diff = difflib.unified_diff(original_file_lines, file_lines, lineterm="")
     for line in diff:
         if line.startswith("+"):
@@ -113,17 +120,17 @@ def apply_changes(file_path, changes_json):
         else:
             print(line, end="")
 
-
 def main(script_name, *script_args, revert=False, model="gpt-4"):
+    openai.api_key = load_openai_key()
+
     if revert:
         backup_file = script_name + ".bak"
         if os.path.exists(backup_file):
             shutil.copy(backup_file, script_name)
             print(f"Reverted changes to {script_name}")
-            sys.exit(0)
+            return
         else:
-            print(f"No backup file found for {script_name}")
-            sys.exit(1)
+            raise Exception(f"No backup file found for {script_name}")
 
     # Make a backup of the original script
     shutil.copy(script_name, script_name + ".bak")
@@ -145,9 +152,16 @@ def main(script_name, *script_args, revert=False, model="gpt-4"):
                     error_message=output,
                     model=model,
             )
+            try:
                 apply_changes(script_name, json_response)
                 cprint("Changes applied. Rerunning...", "blue")
-
+            except Exception as e:
+                raise Exception(f"Failed to fix the script: {str(e)}")
 
 if __name__ == "__main__":
+    try:
         fire.Fire(main)
+    except Exception as e:
+        print(str(e))
+        sys.exit(1)
+