Refactored some Gradio UI helper functions out of rss_client.py

client/gradio_functions.py

@@ -0,0 +1,36 @@
+'''Collections of helper functions for Gradio user interface.'''
+
+import os
+import re
+
+def update_log(n: int = 10):
+    '''Gets updated logging output from disk to display to user.
+    
+    Args:
+        n: number of most recent lines of logging output to display
+
+    Returns:
+        Logging output as string
+    '''
+
+    with open('logs/rss_client.log', 'r', encoding='utf-8') as log_file:
+        lines = log_file.readlines()
+
+    return ''.join(lines[-n:])
+
+
+def delete_old_logs(directory:str, basename:str) -> None:
+    '''Deletes old log files from previous optimization sessions, if present.
+    
+    Args:
+        directory: path to log file directory as string
+        basename: log file base name as string
+        
+    Returns:
+        None
+    '''
+
+    for filename in os.listdir(directory):
+        file_path = os.path.join(directory, filename)
+        if re.search(basename, filename):
+            os.remove(file_path)

rss_client.py

@@ -6,6 +6,7 @@ from pathlib import Path
 from logging.handlers import RotatingFileHandler
 
 import gradio as gr
+import client.gradio_functions as gradio_funcs
 import client.interface as interface
 from client.mcp_client import MCPClientWrapper
 from client.anthropic_bridge import AnthropicBridge
@@ -13,6 +14,9 @@ from client.anthropic_bridge import AnthropicBridge
 # Make sure log directory exists
 Path('logs').mkdir(parents=True, exist_ok=True)
 
+# Clear old logs if present
+gradio_funcs.delete_old_logs('logs', 'rss_client')
+
 # Set-up logger
 logger = logging.getLogger()
 
@@ -60,21 +64,6 @@ async def send_message(message: str, chat_history: list) -> str:
 
     return '', chat_history
 
-def update_log(n: int = 10):
-    '''Gets updated logging output from disk to display to user.
-    
-    Args:
-        n: number of most recent lines of logging output to display
-
-    Returns:
-        Logging output as string
-    '''
-
-    with open('logs/rss_client.log', 'r', encoding='utf-8') as log_file:
-        lines = log_file.readlines()
-
-    return ''.join(lines[-n:])
-
 
 with gr.Blocks(title='MCP RSS client') as demo:
     gr.Markdown('# Agentic RSS reader')
@@ -94,7 +83,11 @@ with gr.Blocks(title='MCP RSS client') as demo:
     # Log output
     logs = gr.Textbox(label='Client logs', lines=10, max_lines=10)
     timer = gr.Timer(1, active=True)
-    timer.tick(lambda: update_log(), outputs=logs) # pylint: disable=no-member, disable=unnecessary-lambda
+
+    timer.tick( # pylint: disable=no-member
+        lambda: gradio_funcs.update_log(), # pylint: disable=unnecessary-lambda
+        outputs=logs
+    )
 
     # Chat interface
     chatbot = gr.Chatbot(