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"""File operations for AutoGPT"""
from __future__ import annotations
import contextlib
import hashlib
import os
import os.path
from pathlib import Path
from typing import Generator, Literal
from autogpt.agent.agent import Agent
from autogpt.command_decorator import command
from autogpt.logs import logger
from autogpt.memory.vector import MemoryItem, VectorMemory
from .decorators import sanitize_path_arg
from .file_operations_utils import read_textual_file
Operation = Literal["write", "append", "delete"]
def text_checksum(text: str) -> str:
"""Get the hex checksum for the given text."""
return hashlib.md5(text.encode("utf-8")).hexdigest()
def operations_from_log(
log_path: str,
) -> Generator[tuple[Operation, str, str | None], None, None]:
"""Parse the file operations log and return a tuple containing the log entries"""
try:
log = open(log_path, "r", encoding="utf-8")
except FileNotFoundError:
return
for line in log:
line = line.replace("File Operation Logger", "").strip()
if not line:
continue
operation, tail = line.split(": ", maxsplit=1)
operation = operation.strip()
if operation in ("write", "append"):
try:
path, checksum = (x.strip() for x in tail.rsplit(" #", maxsplit=1))
except ValueError:
logger.warn(f"File log entry lacks checksum: '{line}'")
path, checksum = tail.strip(), None
yield (operation, path, checksum)
elif operation == "delete":
yield (operation, tail.strip(), None)
log.close()
def file_operations_state(log_path: str) -> dict[str, str]:
"""Iterates over the operations log and returns the expected state.
Parses a log file at config.file_logger_path to construct a dictionary that maps
each file path written or appended to its checksum. Deleted files are removed
from the dictionary.
Returns:
A dictionary mapping file paths to their checksums.
Raises:
FileNotFoundError: If config.file_logger_path is not found.
ValueError: If the log file content is not in the expected format.
"""
state = {}
for operation, path, checksum in operations_from_log(log_path):
if operation in ("write", "append"):
state[path] = checksum
elif operation == "delete":
del state[path]
return state
@sanitize_path_arg("filename")
def is_duplicate_operation(
operation: Operation, filename: str, agent: Agent, checksum: str | None = None
) -> bool:
"""Check if the operation has already been performed
Args:
operation: The operation to check for
filename: The name of the file to check for
agent: The agent
checksum: The checksum of the contents to be written
Returns:
True if the operation has already been performed on the file
"""
# Make the filename into a relative path if possible
with contextlib.suppress(ValueError):
filename = str(Path(filename).relative_to(agent.workspace.root))
state = file_operations_state(agent.config.file_logger_path)
if operation == "delete" and filename not in state:
return True
if operation == "write" and state.get(filename) == checksum:
return True
return False
@sanitize_path_arg("filename")
def log_operation(
operation: Operation, filename: str, agent: Agent, checksum: str | None = None
) -> None:
"""Log the file operation to the file_logger.txt
Args:
operation: The operation to log
filename: The name of the file the operation was performed on
checksum: The checksum of the contents to be written
"""
# Make the filename into a relative path if possible
with contextlib.suppress(ValueError):
filename = str(Path(filename).relative_to(agent.workspace.root))
log_entry = f"{operation}: {filename}"
if checksum is not None:
log_entry += f" #{checksum}"
logger.debug(f"Logging file operation: {log_entry}")
append_to_file(
agent.config.file_logger_path, f"{log_entry}\n", agent, should_log=False
)
@command(
"read_file",
"Read an existing file",
{
"filename": {
"type": "string",
"description": "The path of the file to read",
"required": True,
}
},
)
@sanitize_path_arg("filename")
def read_file(filename: str, agent: Agent) -> str:
"""Read a file and return the contents
Args:
filename (str): The name of the file to read
Returns:
str: The contents of the file
"""
try:
content = read_textual_file(filename, logger)
# TODO: invalidate/update memory when file is edited
file_memory = MemoryItem.from_text_file(content, filename, agent.config)
if len(file_memory.chunks) > 1:
return file_memory.summary
return content
except Exception as e:
return f"Error: {str(e)}"
def ingest_file(
filename: str,
memory: VectorMemory,
) -> None:
"""
Ingest a file by reading its content, splitting it into chunks with a specified
maximum length and overlap, and adding the chunks to the memory storage.
Args:
filename: The name of the file to ingest
memory: An object with an add() method to store the chunks in memory
"""
try:
logger.info(f"Ingesting file {filename}")
content = read_file(filename)
# TODO: differentiate between different types of files
file_memory = MemoryItem.from_text_file(content, filename)
logger.debug(f"Created memory: {file_memory.dump(True)}")
memory.add(file_memory)
logger.info(f"Ingested {len(file_memory.e_chunks)} chunks from {filename}")
except Exception as err:
logger.warn(f"Error while ingesting file '{filename}': {err}")
@command(
"write_to_file",
"Writes to a file",
{
"filename": {
"type": "string",
"description": "The name of the file to write to",
"required": True,
},
"text": {
"type": "string",
"description": "The text to write to the file",
"required": True,
},
},
aliases=["write_file", "create_file"],
)
@sanitize_path_arg("filename")
def write_to_file(filename: str, text: str, agent: Agent) -> str:
"""Write text to a file
Args:
filename (str): The name of the file to write to
text (str): The text to write to the file
Returns:
str: A message indicating success or failure
"""
checksum = text_checksum(text)
if is_duplicate_operation("write", filename, agent, checksum):
return "Error: File has already been updated."
try:
directory = os.path.dirname(filename)
os.makedirs(directory, exist_ok=True)
with open(filename, "w", encoding="utf-8") as f:
f.write(text)
log_operation("write", filename, agent, checksum)
return "File written to successfully."
except Exception as err:
return f"Error: {err}"
@command(
"append_to_file",
"Appends to a file",
{
"filename": {
"type": "string",
"description": "The name of the file to write to",
"required": True,
},
"text": {
"type": "string",
"description": "The text to write to the file",
"required": True,
},
},
)
@sanitize_path_arg("filename")
def append_to_file(
filename: str, text: str, agent: Agent, should_log: bool = True
) -> str:
"""Append text to a file
Args:
filename (str): The name of the file to append to
text (str): The text to append to the file
should_log (bool): Should log output
Returns:
str: A message indicating success or failure
"""
try:
directory = os.path.dirname(filename)
os.makedirs(directory, exist_ok=True)
with open(filename, "a", encoding="utf-8") as f:
f.write(text)
if should_log:
with open(filename, "r", encoding="utf-8") as f:
checksum = text_checksum(f.read())
log_operation("append", filename, agent, checksum=checksum)
return "Text appended successfully."
except Exception as err:
return f"Error: {err}"
@command(
"delete_file",
"Deletes a file",
{
"filename": {
"type": "string",
"description": "The name of the file to delete",
"required": True,
}
},
)
@sanitize_path_arg("filename")
def delete_file(filename: str, agent: Agent) -> str:
"""Delete a file
Args:
filename (str): The name of the file to delete
Returns:
str: A message indicating success or failure
"""
if is_duplicate_operation("delete", filename, agent):
return "Error: File has already been deleted."
try:
os.remove(filename)
log_operation("delete", filename, agent)
return "File deleted successfully."
except Exception as err:
return f"Error: {err}"
@command(
"list_files",
"Lists Files in a Directory",
{
"directory": {
"type": "string",
"description": "The directory to list files in",
"required": True,
}
},
)
@sanitize_path_arg("directory")
def list_files(directory: str, agent: Agent) -> list[str]:
"""lists files in a directory recursively
Args:
directory (str): The directory to search in
Returns:
list[str]: A list of files found in the directory
"""
found_files = []
for root, _, files in os.walk(directory):
for file in files:
if file.startswith("."):
continue
relative_path = os.path.relpath(
os.path.join(root, file), agent.config.workspace_path
)
found_files.append(relative_path)
return found_files
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