91 lines
2.8 KiB
Python
91 lines
2.8 KiB
Python
from langchain_core.tools import tool
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from typing import Dict
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from pathlib import Path
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from rich.panel import Panel
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from ra_aid.console import console
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from ra_aid.console.formatting import print_error
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def truncate_display_str(s: str, max_length: int = 30) -> str:
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"""Truncate a string for display purposes if it exceeds max length.
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Args:
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s: String to truncate
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max_length: Maximum length before truncating
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Returns:
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Truncated string with ellipsis if needed
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"""
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if len(s) <= max_length:
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return s
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return s[:max_length] + "..."
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def format_string_for_display(s: str, threshold: int = 30) -> str:
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"""Format a string for display, showing either quoted string or length.
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Args:
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s: String to format
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threshold: Max length before switching to character count display
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Returns:
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Formatted string for display
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"""
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if len(s) <= threshold:
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return f"'{s}'"
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return f'[{len(s)} characters]'
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@tool
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def file_str_replace(
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filepath: str,
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old_str: str,
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new_str: str
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) -> Dict[str, any]:
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"""Replace an exact string match in a file with a new string.
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Only performs replacement if the old string appears exactly once.
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Args:
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filepath: Path to the file to modify
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old_str: Exact string to replace
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new_str: String to replace with
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Returns:
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Dict containing:
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- success: Whether the operation succeeded
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- message: Success confirmation or error details
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"""
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try:
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path = Path(filepath)
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if not path.exists():
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msg = f"File not found: {filepath}"
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print_error(msg)
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return {"success": False, "message": msg}
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content = path.read_text()
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count = content.count(old_str)
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if count == 0:
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msg = f"String not found: {truncate_display_str(old_str)}"
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print_error(msg)
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return {"success": False, "message": msg}
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elif count > 1:
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msg = f"String appears {count} times - must be unique"
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print_error(msg)
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return {"success": False, "message": msg}
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new_content = content.replace(old_str, new_str)
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path.write_text(new_content)
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console.print(Panel(
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f"Replaced in {filepath}:\n{format_string_for_display(old_str)} → {format_string_for_display(new_str)}",
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title="✓ String Replaced",
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border_style="bright_blue"
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))
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return {
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"success": True,
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"message": f"Successfully replaced '{old_str}' with '{new_str}' in {filepath}"
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}
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except Exception as e:
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msg = f"Error: {str(e)}"
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print_error(msg)
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return {"success": False, "message": msg}
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