mirror of
https://github.com/oobabooga/text-generation-webui.git
synced 2024-11-22 16:17:57 +01:00
728 lines
24 KiB
Python
728 lines
24 KiB
Python
import base64
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import copy
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import functools
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import html
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import json
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import re
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from datetime import datetime
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from pathlib import Path
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import gradio as gr
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import yaml
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from PIL import Image
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import modules.shared as shared
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from modules.extensions import apply_extensions
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from modules.html_generator import chat_html_wrapper, make_thumbnail
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from modules.logging_colors import logger
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from modules.text_generation import (
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generate_reply,
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get_encoded_length,
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get_max_prompt_length
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)
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from modules.utils import (
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delete_file,
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get_available_characters,
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replace_all,
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save_file
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)
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def str_presenter(dumper, data):
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"""
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Copied from https://github.com/yaml/pyyaml/issues/240
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Makes pyyaml output prettier multiline strings.
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"""
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if data.count('\n') > 0:
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return dumper.represent_scalar('tag:yaml.org,2002:str', data, style='|')
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return dumper.represent_scalar('tag:yaml.org,2002:str', data)
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yaml.add_representer(str, str_presenter)
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yaml.representer.SafeRepresenter.add_representer(str, str_presenter)
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def get_turn_substrings(state, instruct=False):
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if instruct:
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if 'turn_template' not in state or state['turn_template'] == '':
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template = '<|user|>\n<|user-message|>\n<|bot|>\n<|bot-message|>\n'
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else:
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template = state['turn_template'].replace(r'\n', '\n')
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else:
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template = '<|user|>: <|user-message|>\n<|bot|>: <|bot-message|>\n'
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replacements = {
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'<|user|>': state['name1_instruct' if instruct else 'name1'].strip(),
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'<|bot|>': state['name2_instruct' if instruct else 'name2'].strip(),
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}
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output = {
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'user_turn': template.split('<|bot|>')[0],
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'bot_turn': '<|bot|>' + template.split('<|bot|>')[1],
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'user_turn_stripped': template.split('<|bot|>')[0].split('<|user-message|>')[0],
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'bot_turn_stripped': '<|bot|>' + template.split('<|bot|>')[1].split('<|bot-message|>')[0],
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}
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for k in output:
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output[k] = replace_all(output[k], replacements)
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return output
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def generate_chat_prompt(user_input, state, **kwargs):
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impersonate = kwargs.get('impersonate', False)
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_continue = kwargs.get('_continue', False)
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also_return_rows = kwargs.get('also_return_rows', False)
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history = kwargs.get('history', state['history'])['internal']
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is_instruct = state['mode'] == 'instruct'
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# Find the maximum prompt size
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max_length = get_max_prompt_length(state)
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all_substrings = {
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'chat': get_turn_substrings(state, instruct=False) if state['mode'] in ['chat', 'chat-instruct'] else None,
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'instruct': get_turn_substrings(state, instruct=True)
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}
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substrings = all_substrings['instruct' if is_instruct else 'chat']
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# Create the template for "chat-instruct" mode
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if state['mode'] == 'chat-instruct':
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wrapper = ''
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command = state['chat-instruct_command'].replace('<|character|>', state['name2'] if not impersonate else state['name1'])
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wrapper += state['context_instruct']
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wrapper += all_substrings['instruct']['user_turn'].replace('<|user-message|>', command)
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wrapper += all_substrings['instruct']['bot_turn_stripped']
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if impersonate:
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wrapper += substrings['user_turn_stripped'].rstrip(' ')
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elif _continue:
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wrapper += apply_extensions('bot_prefix', substrings['bot_turn_stripped'], state)
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wrapper += history[-1][1]
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else:
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wrapper += apply_extensions('bot_prefix', substrings['bot_turn_stripped'].rstrip(' '), state)
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else:
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wrapper = '<|prompt|>'
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if is_instruct:
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context = state['context_instruct']
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else:
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context = replace_character_names(
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f"{state['context'].strip()}\n",
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state['name1'],
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state['name2']
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)
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# Build the prompt
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rows = [context]
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min_rows = 3
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i = len(history) - 1
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while i >= 0 and get_encoded_length(wrapper.replace('<|prompt|>', ''.join(rows))) < max_length:
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if _continue and i == len(history) - 1:
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if state['mode'] != 'chat-instruct':
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rows.insert(1, substrings['bot_turn_stripped'] + history[i][1].strip())
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else:
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rows.insert(1, substrings['bot_turn'].replace('<|bot-message|>', history[i][1].strip()))
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string = history[i][0]
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if string not in ['', '<|BEGIN-VISIBLE-CHAT|>']:
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rows.insert(1, replace_all(substrings['user_turn'], {'<|user-message|>': string.strip(), '<|round|>': str(i)}))
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i -= 1
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if impersonate:
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if state['mode'] == 'chat-instruct':
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min_rows = 1
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else:
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min_rows = 2
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rows.append(substrings['user_turn_stripped'].rstrip(' '))
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elif not _continue:
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# Add the user message
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if len(user_input) > 0:
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rows.append(replace_all(substrings['user_turn'], {'<|user-message|>': user_input.strip(), '<|round|>': str(len(history))}))
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# Add the character prefix
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if state['mode'] != 'chat-instruct':
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rows.append(apply_extensions('bot_prefix', substrings['bot_turn_stripped'].rstrip(' '), state))
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while len(rows) > min_rows and get_encoded_length(wrapper.replace('<|prompt|>', ''.join(rows))) >= max_length:
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rows.pop(1)
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prompt = wrapper.replace('<|prompt|>', ''.join(rows))
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if also_return_rows:
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return prompt, rows
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else:
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return prompt
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def get_stopping_strings(state):
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stopping_strings = []
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if state['mode'] in ['instruct', 'chat-instruct']:
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stopping_strings += [
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state['turn_template'].split('<|user-message|>')[1].split('<|bot|>')[0] + '<|bot|>',
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state['turn_template'].split('<|bot-message|>')[1] + '<|user|>'
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]
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replacements = {
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'<|user|>': state['name1_instruct'],
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'<|bot|>': state['name2_instruct']
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}
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for i in range(len(stopping_strings)):
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stopping_strings[i] = replace_all(stopping_strings[i], replacements).rstrip(' ').replace(r'\n', '\n')
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if state['mode'] in ['chat', 'chat-instruct']:
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stopping_strings += [
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f"\n{state['name1']}:",
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f"\n{state['name2']}:"
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]
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if 'stopping_strings' in state and isinstance(state['stopping_strings'], list):
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stopping_strings += state.pop('stopping_strings')
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return stopping_strings
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def chatbot_wrapper(text, state, regenerate=False, _continue=False, loading_message=True):
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history = state['history']
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output = copy.deepcopy(history)
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output = apply_extensions('history', output)
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state = apply_extensions('state', state)
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if shared.model_name == 'None' or shared.model is None:
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logger.error("No model is loaded! Select one in the Model tab.")
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yield output
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return
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just_started = True
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visible_text = None
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stopping_strings = get_stopping_strings(state)
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is_stream = state['stream']
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# Prepare the input
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if not any((regenerate, _continue)):
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visible_text = html.escape(text)
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# Apply extensions
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text, visible_text = apply_extensions('chat_input', text, visible_text, state)
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text = apply_extensions('input', text, state, is_chat=True)
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# *Is typing...*
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if loading_message:
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yield {'visible': output['visible'] + [[visible_text, shared.processing_message]], 'internal': output['internal']}
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else:
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text, visible_text = output['internal'][-1][0], output['visible'][-1][0]
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if regenerate:
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output['visible'].pop()
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output['internal'].pop()
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# *Is typing...*
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if loading_message:
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yield {'visible': output['visible'] + [[visible_text, shared.processing_message]], 'internal': output['internal']}
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elif _continue:
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last_reply = [output['internal'][-1][1], output['visible'][-1][1]]
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if loading_message:
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yield {'visible': output['visible'][:-1] + [[visible_text, last_reply[1] + '...']], 'internal': output['internal']}
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# Generate the prompt
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kwargs = {
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'_continue': _continue,
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'history': output,
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}
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prompt = apply_extensions('custom_generate_chat_prompt', text, state, **kwargs)
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if prompt is None:
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prompt = generate_chat_prompt(text, state, **kwargs)
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# Generate
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reply = None
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for j, reply in enumerate(generate_reply(prompt, state, stopping_strings=stopping_strings, is_chat=True)):
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# Extract the reply
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visible_reply = reply
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if state['mode'] in ['chat', 'chat-instruct']:
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visible_reply = re.sub("(<USER>|<user>|{{user}})", state['name1'], reply)
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visible_reply = html.escape(visible_reply)
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if shared.stop_everything:
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output['visible'][-1][1] = apply_extensions('output', output['visible'][-1][1], state, is_chat=True)
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yield output
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return
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if just_started:
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just_started = False
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if not _continue:
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output['internal'].append(['', ''])
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output['visible'].append(['', ''])
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if _continue:
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output['internal'][-1] = [text, last_reply[0] + reply]
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output['visible'][-1] = [visible_text, last_reply[1] + visible_reply]
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if is_stream:
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yield output
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elif not (j == 0 and visible_reply.strip() == ''):
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output['internal'][-1] = [text, reply.lstrip(' ')]
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output['visible'][-1] = [visible_text, visible_reply.lstrip(' ')]
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if is_stream:
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yield output
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output['visible'][-1][1] = apply_extensions('output', output['visible'][-1][1], state, is_chat=True)
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yield output
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def impersonate_wrapper(text, state):
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static_output = chat_html_wrapper(state['history'], state['name1'], state['name2'], state['mode'], state['chat_style'])
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if shared.model_name == 'None' or shared.model is None:
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logger.error("No model is loaded! Select one in the Model tab.")
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yield '', static_output
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return
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prompt = generate_chat_prompt('', state, impersonate=True)
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stopping_strings = get_stopping_strings(state)
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yield text + '...', static_output
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reply = None
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for reply in generate_reply(prompt + text, state, stopping_strings=stopping_strings, is_chat=True):
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yield (text + reply).lstrip(' '), static_output
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if shared.stop_everything:
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return
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def generate_chat_reply(text, state, regenerate=False, _continue=False, loading_message=True):
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history = state['history']
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if regenerate or _continue:
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text = ''
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if (len(history['visible']) == 1 and not history['visible'][0][0]) or len(history['internal']) == 0:
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yield history
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return
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for history in chatbot_wrapper(text, state, regenerate=regenerate, _continue=_continue, loading_message=loading_message):
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yield history
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def character_is_loaded(state, raise_exception=False):
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if state['mode'] in ['chat', 'chat-instruct'] and state['name2'] == '':
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logger.error('It looks like no character is loaded. Please load one under Parameters > Character.')
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if raise_exception:
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raise ValueError
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return False
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else:
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return True
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def generate_chat_reply_wrapper(text, state, regenerate=False, _continue=False):
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'''
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Same as above but returns HTML for the UI
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'''
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if not character_is_loaded(state):
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return
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if state['start_with'] != '' and not _continue:
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if regenerate:
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text, state['history'] = remove_last_message(state['history'])
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regenerate = False
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_continue = True
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send_dummy_message(text, state)
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send_dummy_reply(state['start_with'], state)
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for i, history in enumerate(generate_chat_reply(text, state, regenerate, _continue, loading_message=True)):
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yield chat_html_wrapper(history, state['name1'], state['name2'], state['mode'], state['chat_style']), history
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def remove_last_message(history):
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if len(history['visible']) > 0 and history['internal'][-1][0] != '<|BEGIN-VISIBLE-CHAT|>':
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last = history['visible'].pop()
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history['internal'].pop()
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else:
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last = ['', '']
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return html.unescape(last[0]), history
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def send_last_reply_to_input(history):
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if len(history['visible']) > 0:
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return html.unescape(history['visible'][-1][1])
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else:
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return ''
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def replace_last_reply(text, state):
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history = state['history']
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if len(text.strip()) == 0:
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return history
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elif len(history['visible']) > 0:
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history['visible'][-1][1] = html.escape(text)
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history['internal'][-1][1] = apply_extensions('input', text, state, is_chat=True)
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return history
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def send_dummy_message(text, state):
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history = state['history']
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history['visible'].append([html.escape(text), ''])
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history['internal'].append([apply_extensions('input', text, state, is_chat=True), ''])
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return history
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def send_dummy_reply(text, state):
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history = state['history']
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if len(history['visible']) > 0 and not history['visible'][-1][1] == '':
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history['visible'].append(['', ''])
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history['internal'].append(['', ''])
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history['visible'][-1][1] = html.escape(text)
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history['internal'][-1][1] = apply_extensions('input', text, state, is_chat=True)
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return history
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def redraw_html(history, name1, name2, mode, style, reset_cache=False):
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return chat_html_wrapper(history, name1, name2, mode, style, reset_cache=reset_cache)
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def start_new_chat(state):
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mode = state['mode']
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history = {'internal': [], 'visible': []}
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if mode != 'instruct':
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greeting = replace_character_names(state['greeting'], state['name1'], state['name2'])
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if greeting != '':
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history['internal'] += [['<|BEGIN-VISIBLE-CHAT|>', greeting]]
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history['visible'] += [['', apply_extensions('output', greeting, state, is_chat=True)]]
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unique_id = datetime.now().strftime('%Y%m%d-%H-%M-%S')
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save_history(history, unique_id, state['character_menu'], state['mode'])
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return history
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def get_history_file_path(unique_id, character, mode):
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if mode == 'instruct':
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p = Path(f'logs/instruct/{unique_id}.json')
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else:
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p = Path(f'logs/chat/{character}/{unique_id}.json')
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return p
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def save_history(history, unique_id, character, mode):
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if shared.args.multi_user:
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return
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p = get_history_file_path(unique_id, character, mode)
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if not p.parent.is_dir():
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p.parent.mkdir(parents=True)
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with open(p, 'w', encoding='utf-8') as f:
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f.write(json.dumps(history, indent=4))
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def rename_history(old_id, new_id, character, mode):
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if shared.args.multi_user:
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return
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old_p = get_history_file_path(old_id, character, mode)
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new_p = get_history_file_path(new_id, character, mode)
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if new_p.parent != old_p.parent:
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logger.error(f"The following path is not allowed: {new_p}.")
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elif new_p == old_p:
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logger.info("The provided path is identical to the old one.")
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else:
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logger.info(f"Renaming {old_p} to {new_p}")
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old_p.rename(new_p)
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def find_all_histories(state):
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if shared.args.multi_user:
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return ['']
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if state['mode'] == 'instruct':
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paths = Path('logs/instruct').glob('*.json')
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else:
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character = state['character_menu']
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# Handle obsolete filenames and paths
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old_p = Path(f'logs/{character}_persistent.json')
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new_p = Path(f'logs/persistent_{character}.json')
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if old_p.exists():
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logger.warning(f"Renaming {old_p} to {new_p}")
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old_p.rename(new_p)
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if new_p.exists():
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unique_id = datetime.now().strftime('%Y%m%d-%H-%M-%S')
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p = get_history_file_path(unique_id, character, state['mode'])
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logger.warning(f"Moving {new_p} to {p}")
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p.parent.mkdir(exist_ok=True)
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new_p.rename(p)
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paths = Path(f'logs/chat/{character}').glob('*.json')
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histories = sorted(paths, key=lambda x: x.stat().st_mtime, reverse=True)
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histories = [path.stem for path in histories]
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return histories
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def load_latest_history(state):
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'''
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Loads the latest history for the given character in chat or chat-instruct
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mode, or the latest instruct history for instruct mode.
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'''
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if shared.args.multi_user:
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return start_new_chat(state)
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histories = find_all_histories(state)
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if len(histories) > 0:
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unique_id = Path(histories[0]).stem
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history = load_history(unique_id, state['character_menu'], state['mode'])
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else:
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history = start_new_chat(state)
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return history
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def load_history(unique_id, character, mode):
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p = get_history_file_path(unique_id, character, mode)
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f = json.loads(open(p, 'rb').read())
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if 'internal' in f and 'visible' in f:
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history = f
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else:
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history = {
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'internal': f['data'],
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'visible': f['data_visible']
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}
|
|
|
|
return history
|
|
|
|
|
|
def load_history_json(file, history):
|
|
try:
|
|
file = file.decode('utf-8')
|
|
f = json.loads(file)
|
|
if 'internal' in f and 'visible' in f:
|
|
history = f
|
|
else:
|
|
history = {
|
|
'internal': f['data'],
|
|
'visible': f['data_visible']
|
|
}
|
|
|
|
return history
|
|
except:
|
|
return history
|
|
|
|
|
|
def delete_history(unique_id, character, mode):
|
|
p = get_history_file_path(unique_id, character, mode)
|
|
delete_file(p)
|
|
|
|
|
|
def replace_character_names(text, name1, name2):
|
|
text = text.replace('{{user}}', name1).replace('{{char}}', name2)
|
|
return text.replace('<USER>', name1).replace('<BOT>', name2)
|
|
|
|
|
|
def generate_pfp_cache(character):
|
|
cache_folder = Path("cache")
|
|
if not cache_folder.exists():
|
|
cache_folder.mkdir()
|
|
|
|
for path in [Path(f"characters/{character}.{extension}") for extension in ['png', 'jpg', 'jpeg']]:
|
|
if path.exists():
|
|
img = make_thumbnail(Image.open(path))
|
|
img.save(Path('cache/pfp_character.png'), format='PNG')
|
|
return img
|
|
|
|
return None
|
|
|
|
|
|
def load_character(character, name1, name2, instruct=False):
|
|
context = greeting = turn_template = ""
|
|
greeting_field = 'greeting'
|
|
picture = None
|
|
|
|
if instruct:
|
|
name1 = name2 = ''
|
|
folder = 'instruction-templates'
|
|
else:
|
|
folder = 'characters'
|
|
|
|
filepath = None
|
|
for extension in ["yml", "yaml", "json"]:
|
|
filepath = Path(f'{folder}/{character}.{extension}')
|
|
if filepath.exists():
|
|
break
|
|
|
|
if filepath is None or not filepath.exists():
|
|
logger.error(f"Could not find the character \"{character}\" inside {folder}/. No character has been loaded.")
|
|
raise ValueError
|
|
|
|
file_contents = open(filepath, 'r', encoding='utf-8').read()
|
|
data = json.loads(file_contents) if extension == "json" else yaml.safe_load(file_contents)
|
|
|
|
if Path("cache/pfp_character.png").exists() and not instruct:
|
|
Path("cache/pfp_character.png").unlink()
|
|
|
|
picture = generate_pfp_cache(character)
|
|
|
|
# Finding the bot's name
|
|
for k in ['name', 'bot', '<|bot|>', 'char_name']:
|
|
if k in data and data[k] != '':
|
|
name2 = data[k]
|
|
break
|
|
|
|
# Find the user name (if any)
|
|
for k in ['your_name', 'user', '<|user|>']:
|
|
if k in data and data[k] != '':
|
|
name1 = data[k]
|
|
break
|
|
|
|
if 'context' in data:
|
|
context = data['context']
|
|
if not instruct:
|
|
context = context.strip() + '\n'
|
|
elif "char_persona" in data:
|
|
context = build_pygmalion_style_context(data)
|
|
greeting_field = 'char_greeting'
|
|
|
|
if greeting_field in data:
|
|
greeting = data[greeting_field]
|
|
|
|
if 'turn_template' in data:
|
|
turn_template = data['turn_template']
|
|
|
|
return name1, name2, picture, greeting, context, turn_template.replace("\n", r"\n")
|
|
|
|
|
|
@functools.cache
|
|
def load_character_memoized(character, name1, name2, instruct=False):
|
|
return load_character(character, name1, name2, instruct=instruct)
|
|
|
|
|
|
def upload_character(file, img, tavern=False):
|
|
decoded_file = file if isinstance(file, str) else file.decode('utf-8')
|
|
try:
|
|
data = json.loads(decoded_file)
|
|
except:
|
|
data = yaml.safe_load(decoded_file)
|
|
|
|
if 'char_name' in data:
|
|
name = data['char_name']
|
|
greeting = data['char_greeting']
|
|
context = build_pygmalion_style_context(data)
|
|
yaml_data = generate_character_yaml(name, greeting, context)
|
|
else:
|
|
name = data['name']
|
|
yaml_data = generate_character_yaml(data['name'], data['greeting'], data['context'])
|
|
|
|
outfile_name = name
|
|
i = 1
|
|
while Path(f'characters/{outfile_name}.yaml').exists():
|
|
outfile_name = f'{name}_{i:03d}'
|
|
i += 1
|
|
|
|
with open(Path(f'characters/{outfile_name}.yaml'), 'w', encoding='utf-8') as f:
|
|
f.write(yaml_data)
|
|
|
|
if img is not None:
|
|
img.save(Path(f'characters/{outfile_name}.png'))
|
|
|
|
logger.info(f'New character saved to "characters/{outfile_name}.yaml".')
|
|
return gr.update(value=outfile_name, choices=get_available_characters())
|
|
|
|
|
|
def build_pygmalion_style_context(data):
|
|
context = ""
|
|
if 'char_persona' in data and data['char_persona'] != '':
|
|
context += f"{data['char_name']}'s Persona: {data['char_persona']}\n"
|
|
|
|
if 'world_scenario' in data and data['world_scenario'] != '':
|
|
context += f"Scenario: {data['world_scenario']}\n"
|
|
|
|
if 'example_dialogue' in data and data['example_dialogue'] != '':
|
|
context += f"{data['example_dialogue'].strip()}\n"
|
|
|
|
context = f"{context.strip()}\n"
|
|
return context
|
|
|
|
|
|
def upload_tavern_character(img, _json):
|
|
_json = {'char_name': _json['name'], 'char_persona': _json['description'], 'char_greeting': _json['first_mes'], 'example_dialogue': _json['mes_example'], 'world_scenario': _json['scenario']}
|
|
return upload_character(json.dumps(_json), img, tavern=True)
|
|
|
|
|
|
def check_tavern_character(img):
|
|
if "chara" not in img.info:
|
|
return "Not a TavernAI card", None, None, gr.update(interactive=False)
|
|
|
|
decoded_string = base64.b64decode(img.info['chara']).replace(b'\\r\\n', b'\\n')
|
|
_json = json.loads(decoded_string)
|
|
if "data" in _json:
|
|
_json = _json["data"]
|
|
|
|
return _json['name'], _json['description'], _json, gr.update(interactive=True)
|
|
|
|
|
|
def upload_your_profile_picture(img):
|
|
cache_folder = Path("cache")
|
|
if not cache_folder.exists():
|
|
cache_folder.mkdir()
|
|
|
|
if img is None:
|
|
if Path("cache/pfp_me.png").exists():
|
|
Path("cache/pfp_me.png").unlink()
|
|
else:
|
|
img = make_thumbnail(img)
|
|
img.save(Path('cache/pfp_me.png'))
|
|
logger.info('Profile picture saved to "cache/pfp_me.png"')
|
|
|
|
|
|
def generate_character_yaml(name, greeting, context):
|
|
data = {
|
|
'name': name,
|
|
'greeting': greeting,
|
|
'context': context,
|
|
}
|
|
|
|
data = {k: v for k, v in data.items() if v} # Strip falsy
|
|
return yaml.dump(data, sort_keys=False, width=float("inf"))
|
|
|
|
|
|
def generate_instruction_template_yaml(user, bot, context, turn_template):
|
|
data = {
|
|
'user': user,
|
|
'bot': bot,
|
|
'turn_template': turn_template,
|
|
'context': context,
|
|
}
|
|
|
|
data = {k: v for k, v in data.items() if v} # Strip falsy
|
|
return yaml.dump(data, sort_keys=False, width=float("inf"))
|
|
|
|
|
|
def save_character(name, greeting, context, picture, filename):
|
|
if filename == "":
|
|
logger.error("The filename is empty, so the character will not be saved.")
|
|
return
|
|
|
|
data = generate_character_yaml(name, greeting, context)
|
|
filepath = Path(f'characters/{filename}.yaml')
|
|
save_file(filepath, data)
|
|
path_to_img = Path(f'characters/{filename}.png')
|
|
if picture is not None:
|
|
picture.save(path_to_img)
|
|
logger.info(f'Saved {path_to_img}.')
|
|
|
|
|
|
def delete_character(name, instruct=False):
|
|
for extension in ["yml", "yaml", "json"]:
|
|
delete_file(Path(f'characters/{name}.{extension}'))
|
|
|
|
delete_file(Path(f'characters/{name}.png'))
|