improvements

read_logs.py

@@ -0,0 +1,124 @@
+#!/usr/bin/env python
+"""
+Log Reader Utility
+
+This script provides a convenient way to read and filter log files during
+development.
+"""
+
+import os
+import sys
+import time
+import argparse
+from datetime import datetime
+
+def parse_args():
+    """Parse command line arguments"""
+    parser = argparse.ArgumentParser(description='Read and filter log files')
+    parser.add_argument('--file', type=str, help='Log file to read (defaults to most recent .log file)')
+    parser.add_argument('--tail', type=int, default=50, help='Number of lines to show from the end')
+    parser.add_argument('--follow', '-f', action='store_true', help='Follow the file as it grows')
+    parser.add_argument('--filter', type=str, help='Only show lines containing this string')
+    parser.add_argument('--list', action='store_true', help='List all log files sorted by modification time')
+    return parser.parse_args()
+
+def get_most_recent_log():
+    """Find the most recently modified log file"""
+    log_files = [f for f in os.listdir('.') if f.endswith('.log')]
+    if not log_files:
+        print("No log files found in current directory.")
+        sys.exit(1)
+    
+    # Sort by modification time (newest first)
+    log_files.sort(key=lambda x: os.path.getmtime(x), reverse=True)
+    return log_files[0]
+
+def list_log_files():
+    """List all log files sorted by modification time"""
+    log_files = [f for f in os.listdir('.') if f.endswith('.log')]
+    if not log_files:
+        print("No log files found in current directory.")
+        sys.exit(1)
+    
+    # Sort by modification time (newest first)
+    log_files.sort(key=lambda x: os.path.getmtime(x), reverse=True)
+    
+    print(f"{'LAST MODIFIED':<20} {'SIZE':<10} FILENAME")
+    print("-" * 60)
+    for log_file in log_files:
+        mtime = datetime.fromtimestamp(os.path.getmtime(log_file))
+        size = os.path.getsize(log_file)
+        size_str = f"{size / 1024:.1f} KB" if size > 1024 else f"{size} B"
+        print(f"{mtime.strftime('%Y-%m-%d %H:%M:%S'):<20} {size_str:<10} {log_file}")
+
+def read_log_tail(file_path, num_lines, filter_text=None):
+    """Read the last N lines of a file"""
+    try:
+        with open(file_path, 'r', encoding='utf-8') as f:
+            # Read all lines (inefficient but simple)
+            lines = f.readlines()
+            
+            # Filter if needed
+            if filter_text:
+                lines = [line for line in lines if filter_text in line]
+            
+            # Get the last N lines
+            last_lines = lines[-num_lines:] if len(lines) > num_lines else lines
+            return last_lines
+    except Exception as e:
+        print(f"Error reading file: {str(e)}")
+        sys.exit(1)
+
+def follow_log(file_path, filter_text=None):
+    """Follow the log file as it grows (like tail -f)"""
+    try:
+        with open(file_path, 'r', encoding='utf-8') as f:
+            # Go to the end of the file
+            f.seek(0, 2)
+            
+            while True:
+                line = f.readline()
+                if line:
+                    if not filter_text or filter_text in line:
+                        # Remove newlines at the end to avoid double spacing
+                        print(line.rstrip())
+                else:
+                    time.sleep(0.1)  # Sleep briefly to avoid consuming CPU
+    except KeyboardInterrupt:
+        print("\nLog reading stopped.")
+    except Exception as e:
+        print(f"Error following file: {str(e)}")
+        sys.exit(1)
+
+def main():
+    """Main function"""
+    args = parse_args()
+    
+    # List all log files if requested
+    if args.list:
+        list_log_files()
+        return
+    
+    # Determine which file to read
+    file_path = args.file
+    if not file_path:
+        file_path = get_most_recent_log()
+        print(f"Reading most recent log file: {file_path}")
+    
+    # Follow mode (like tail -f)
+    if args.follow:
+        print(f"Following {file_path} (Press Ctrl+C to stop)...")
+        # First print the tail
+        for line in read_log_tail(file_path, args.tail, args.filter):
+            print(line.rstrip())
+        print("-" * 80)
+        print("Waiting for new content...")
+        # Then follow
+        follow_log(file_path, args.filter)
+    else:
+        # Just print the tail
+        for line in read_log_tail(file_path, args.tail, args.filter):
+            print(line.rstrip())
+
+if __name__ == "__main__":
+    main()