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import streamlit as st
from transformers import AutoTokenizer
import json
import tempfile
import os
import uuid
import copy
import shutil
st.set_page_config(layout="wide")
def sanitize_jinja2(jinja_lines):
one_liner_jinja = ""
for line in jinja_lines:
one_liner_jinja += line.lstrip(" ").rstrip("\n")
return one_liner_jinja
@st.cache_resource
def get_existing_templates():
return [None] + os.listdir("./templates")
# if os.path.exists("./tmp"):
# if len(os.listdir("./tmp")) > 20:
# shutil.rmtree('./tmp')
# Initialization
if 'tokenizer_json' not in st.session_state:
st.session_state['tokenizer_json'] = None
if 'tokenizer' not in st.session_state:
st.session_state['tokenizer'] = None
if 'repo_normalized_name' not in st.session_state:
st.session_state['repo_normalized_name'] = None
if 'repo_id' not in st.session_state:
st.session_state['repo_id'] = None
if 'input_jinja_template' not in st.session_state:
st.session_state['input_jinja_template'] = ""
if 'uuid' not in st.session_state:
st.session_state['uuid'] = uuid.uuid4()
os.makedirs(f"./tmp/{st.session_state['uuid']}")
if 'successful_template' not in st.session_state:
st.session_state['successful_template'] = ''
if 'generated_prompt_w_add_generation_prompt' not in st.session_state:
st.session_state['generated_prompt_w_add_generation_prompt'] = ''
if 'generated_prompt_wo_add_generation_prompt' not in st.session_state:
st.session_state['generated_prompt_wo_add_generation_prompt'] = ''
if not os.path.exists("./tmp"):
os.makedirs("./tmp")
title_description = """
Chat Template Generation: Make Chat Easier with Huggingface Tokenizer
"""
st.title(title_description)
st.markdown('This streamlit app is to serve as an easier way to check and push the chat template to your/exisiting huggingface repo')
list_of_templates = get_existing_templates()
with st.expander("Current predefined templates"):
for model in list_of_templates[1:]:
st.markdown(f"- {model}")
st.info('More templates will be predefined for easier setup of chat template.', icon="ℹ️")
st.divider()
# custom_repo_tab, prebuilt_template_tab = st.tabs(["Specify Custom Repository Path", "Select Prebuilt Template"])
hf_model_repo_name = st.text_input("Hugging Face Model Repository To Update", value="tiiuae/falcon-7b", max_chars=None, key=None, type="default",
help=None, autocomplete=None, label_visibility="visible")
gen_button = st.button("Get Tokenizer Config")
if gen_button:
with st.spinner(text="In progress...", cache=False):
st.session_state['repo_id'] = hf_model_repo_name
st.session_state['tokenizer'] = AutoTokenizer.from_pretrained(hf_model_repo_name)
st.session_state['repo_normalized_name'] = hf_model_repo_name.replace("/", "_")
st.session_state['tokenizer_json'] = f"./tmp/{st.session_state['uuid']}_{hf_model_repo_name}"
# st.session_state['tokenizer'].save_pretrained(st.session_state['tokenizer_json'])
if st.session_state['tokenizer_json'] is not None:
st.session_state['tokenizer'].save_pretrained(st.session_state['tokenizer_json'])
with open(f"{st.session_state['tokenizer_json']}/tokenizer_config.json", "rb") as f:
tokenizer_json = json.load(f)
shutil.rmtree(st.session_state['tokenizer_json'])
json_spec, col2 = st.columns(spec=[0.3, 0.7])
with json_spec:
st.markdown(f"### Tokenizer Config from {st.session_state['repo_normalized_name']}")
st.json(json.dumps(tokenizer_json, indent=4))
with col2:
chat = [
{"role": "system", "content": "You are a helpful assistant."},
{"role": "user", "content": "Hello, how are you?"},
{"role": "assistant", "content": "I'm doing great. How can I help you today?"},
{"role": "user", "content": "I'd like to show off how chat templating works!"},
]
st.markdown("### Example Conversation")
st.json(json.dumps(chat, indent=4), expanded=False)
prompt_template_col, prompt_template_output_col = st.columns(spec=[0.3, 0.7])
with prompt_template_col:
list_of_templates = get_existing_templates()
selected_template = st.selectbox("Choose Existing Template or Leave Blank. (If template is None, it will check current tokenizer's `chat_template` and `default_chat_template` fields)",
options=list_of_templates,
index=0, placeholder="Choose a template (If template is None, it will check current tokenizer `chat_template` and `default_chat_template` fields)", disabled=False, label_visibility="visible")
# add_generation_prompt_checkbox = st.checkbox("add_generation_prompt")
generate_prompt_example_button = st.button("Generate Prompt", key="generate_prompt_example_button")
# if selected_template is None:
# st.session_state['input_jinja_template'] = st.text_area(
# "Jinja Chat Template", value=st.session_state['input_jinja_template'],
# height=500, placeholder=None, disabled=False, label_visibility="visible")
if selected_template is not None:
with open(f"./templates/{selected_template}", "r") as f:
jinja_lines = f.readlines()
st.session_state['input_jinja_template'] = "".join(jinja_lines)
if selected_template is None:
st.session_state['input_jinja_template'] = st.session_state['tokenizer'].chat_template
if st.session_state['input_jinja_template'] is None:
st.session_state['input_jinja_template'] = st.session_state['tokenizer'].default_chat_template
st.session_state['input_jinja_template'] = st.text_area(
"Jinja Chat Template", value=st.session_state['input_jinja_template'],
height=500, placeholder=None, disabled=False, label_visibility="visible")
with prompt_template_output_col:
# print(st.session_state['input_jinja_template'])
if generate_prompt_example_button:
with open(f"./tmp/{st.session_state['uuid']}/tmp_chat_template.json", "w") as fp:
fp.write(st.session_state['input_jinja_template'])
with open(f"./tmp/{st.session_state['uuid']}/tmp_chat_template.json", "r") as f:
jinja_lines = copy.deepcopy(f.readlines())
st.session_state['tokenizer'].chat_template = sanitize_jinja2(jinja_lines)
# print(sanitize_jinja2(jinja_lines))
os.remove(f"./tmp/{st.session_state['uuid']}/tmp_chat_template.json")
st.session_state['generated_prompt_wo_add_generation_prompt'] = st.session_state['tokenizer'].apply_chat_template(chat, tokenize=False, add_generation_prompt= False)
st.session_state['generated_prompt_w_add_generation_prompt'] = st.session_state['tokenizer'].apply_chat_template(chat, tokenize=False, add_generation_prompt= True)
# print(generated_prompt_wo_add_generation_prompt)
st.session_state['successful_template'] = copy.deepcopy(st.session_state['input_jinja_template'])
# print(st.session_state['successful_template'])
if len(st.session_state['successful_template']) > 0:
st.text_area(
"Generate Prompt with `add_generation_prompt=False`", value=st.session_state['generated_prompt_wo_add_generation_prompt'],
height=300, placeholder=None, disabled=True, label_visibility="visible", key="generated_prompt_wo_add_generation_prompt_text_area")
st.text_area(
"Generate Prompt with `add_generation_prompt=True`", value=st.session_state['generated_prompt_w_add_generation_prompt'],
height=300, placeholder=None, disabled=True, label_visibility="visible", key="generated_prompt_w_add_generation_prompt_text_area")
access_token_no_cache = st.text_input("HuggingFace Access Token API with Write Access", type="password", key="access_token_no_cache")
commit_message_text_input = st.text_input("Commit Message", key="commit_message_text_input")
to_private_checkbox = st.checkbox("To Private Repo", key="to_private_checkbox")
create_pr_checkbox = st.checkbox("Create PR (Check to contribute to others' model repository 🤗)", key="create_pr_checkbox")
push_to_hub_button = st.button("Push to Hub", key="push_to_hub_button", use_container_width=True)
st.session_state['tokenizer'].save_pretrained(st.session_state['tokenizer_json'])
with open(f"{st.session_state['tokenizer_json']}/tokenizer_config.json", "r") as f:
tokenizer_config_content = json.loads(f.read())
shutil.rmtree(st.session_state['tokenizer_json'])
st.download_button(
label="Download tokenizer_config.json",
data=json.dumps(tokenizer_config_content, indent=4),
file_name='tokenizer_config.json',
mime='application/json',
use_container_width=True
)
st.download_button(
label="Download chat_template.jinja2",
data=st.session_state['successful_template'],
file_name='chat_template.jinja2',
mime='text/plain',
use_container_width=True
)
if push_to_hub_button:
with open(f"./tmp/{st.session_state['uuid']}/tmp_chat_template.json", "w") as fp:
fp.write(st.session_state['successful_template'])
with open(f"./tmp/{st.session_state['uuid']}/tmp_chat_template.json", "r") as f:
successful_jinja_lines = f.readlines()
st.session_state['tokenizer'].chat_template = sanitize_jinja2(successful_jinja_lines)
try:
with st.spinner(text="Pushing to hub ...", cache=False):
st.session_state['tokenizer'].push_to_hub(
repo_id=st.session_state['repo_id'],
commit_message=commit_message_text_input,
private=to_private_checkbox,
token=access_token_no_cache,
create_pr=create_pr_checkbox)
except Exception as e:
st.write(f"Repo id: {st.session_state['repo_id']}")
st.write(str(e))
os.remove(f"./tmp/{st.session_state['uuid']}/tmp_chat_template.json")
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