import argparse import os import logging import openai import sys from enum import Enum class AutoDetectedOption(Enum): ON = 'on' OFF = 'off' AUTO = 'auto' def die_validation_err(err : str): print(err, file=sys.stderr) sys.exit(1) def validate_args(args: argparse.Namespace) -> None: if not 0 <= args.temperature <= 2: die_validation_err("Temperature must be between 0 and 2.") if not -2 <= args.frequency_penalty <= 2: die_validation_err("Frequency penalty must be between -2.0 and 2.0.") if not -2 <= args.presence_penalty <= 2: die_validation_err("Presence penalty must be between -2.0 and 2.0.") if args.max_tokens < 1: die_validation_err("Max tokens must be greater than or equal to 1.") if not 0 <= args.top_p <= 1: die_validation_err("Top_p must be between 0 and 1.") if args.n_completions < 1: die_validation_err("Number of completions must be greater than or equal to 1.") def parse_args(): GCLI_ENV_PREFIX = "GCLI_" debug = os.getenv(f'{GCLI_ENV_PREFIX}DEBUG') is not None if debug: logging.warning("Debugging mode and unstable features have been enabled.") parser = argparse.ArgumentParser() parser.add_argument( "-m", "--model", default=os.getenv(f'{GCLI_ENV_PREFIX}MODEL', "gpt-3.5-turbo"), help="ID of the model to use", ) parser.add_argument( "-t", "--temperature", type=float, default=os.getenv(f'{GCLI_ENV_PREFIX}TEMPERATURE', 0.5), help=( "What sampling temperature to use, between 0 and 2. Higher values " "like 0.8 will make the output more random, while lower values " "like 0.2 will make it more focused and deterministic." ), ) parser.add_argument( "-f", "--frequency-penalty", type=float, default=os.getenv(f'{GCLI_ENV_PREFIX}FREQUENCY_PENALTY', 0), help=( "Number between -2.0 and 2.0. Positive values penalize new tokens based " "on their existing frequency in the text so far, decreasing the model's " "likelihood to repeat the same line verbatim." ), ) parser.add_argument( "-p", "--presence-penalty", type=float, default=os.getenv(f'{GCLI_ENV_PREFIX}PRESENCE_PENALTY', 0), help=( "Number between -2.0 and 2.0. Positive values penalize new tokens based " "on whether they appear in the text so far, increasing the model's " "likelihood to talk about new topics." ), ) parser.add_argument( "-k", "--max-tokens", type=int, default=os.getenv(f'{GCLI_ENV_PREFIX}MAX_TOKENS', 2048), help=( "The maximum number of tokens to generate in the chat completion. " "Defaults to 2048." ), ) parser.add_argument( "-s", "--top-p", type=float, default=os.getenv(f'{GCLI_ENV_PREFIX}TOP_P', 1), help=( "An alternative to sampling with temperature, called nucleus sampling, " "where the model considers the results of the tokens with top_p " "probability mass. So 0.1 means only the tokens comprising the top 10%% " "probability mass are considered." ), ) parser.add_argument( "-n", "--n-completions", type=int, default=os.getenv('f{GCLI_ENV_PREFIX}N_COMPLETIONS', 1), help="How many chat completion choices to generate for each input message.", ) parser.add_argument( "--adornments", type=AutoDetectedOption, choices=list(AutoDetectedOption), default=AutoDetectedOption.AUTO, help=( "Show adornments to indicate the model and response." " Can be set to 'on', 'off', or 'auto'." ) ) parser.add_argument( "--color", type=AutoDetectedOption, choices=list(AutoDetectedOption), default=AutoDetectedOption.AUTO, help="Set color to 'on', 'off', or 'auto'.", ) parser.add_argument( "message", type=str, help=( "The contents of the message. When used in chat mode, this is the initial " "message if provided." ), ) if debug: group = parser.add_mutually_exclusive_group() group.add_argument( '--save-response-to-file', type=str, help="UNSTABLE: save the response to a file. This can reply a response for debugging purposes", ) group.add_argument( '--load-response-from-file', type=str, help="UNSTABLE: load a response from a file. This can reply a response for debugging purposes", ) openai_key = os.getenv("OPENAI_KEY", os.getenv("OPENAI_API_KEY")) if not openai_key: print("The OPENAI_API_KEY or OPENAI_KEY environment variable must be defined.", file=sys.stderr) print("The OpenAI API uses API keys for authentication. Visit your (API Keys page)[https://platform.openai.com/account/api-keys] to retrieve the API key you'll use in your requests.", file=sys.stderr) sys.exit(1) openai.api_key = openai_key args = parser.parse_args() if debug and args.load_response_from_file: logging.warning(f'Ignoring the provided arguments in favor of those provided when the response in {args.load_response_from_file} was generated') if args.color == AutoDetectedOption.AUTO: if os.getenv("NO_COLOR"): args.color = AutoDetectedOption.OFF else: args.color = AutoDetectedOption.ON if args.adornments == AutoDetectedOption.AUTO: args.adornments = AutoDetectedOption.ON if not debug: args.load_response_from_file = None args.save_response_to_file = None validate_args(args) return args