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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
@Time : 2023/7/4 10:53
@Author : alexanderwu alitrack
@File : mermaid.py
"""
import asyncio
import os
from pathlib import Path
from metagpt.config2 import config
from metagpt.logs import logger
from metagpt.utils.common import awrite, check_cmd_exists
async def mermaid_to_file(engine, mermaid_code, output_file_without_suffix, width=2048, height=2048) -> int:
"""suffix: png/svg/pdf
:param mermaid_code: mermaid code
:param output_file_without_suffix: output filename
:param width:
:param height:
:return: 0 if succeed, -1 if failed
"""
# Write the Mermaid code to a temporary file
dir_name = os.path.dirname(output_file_without_suffix)
if dir_name and not os.path.exists(dir_name):
os.makedirs(dir_name)
tmp = Path(f"{output_file_without_suffix}.mmd")
await awrite(filename=tmp, data=mermaid_code)
if engine == "nodejs":
if check_cmd_exists(config.mermaid.path) != 0:
logger.warning(
"RUN `npm install -g @mermaid-js/mermaid-cli` to install mmdc,"
"or consider changing engine to `playwright`, `pyppeteer`, or `ink`."
)
return -1
for suffix in ["pdf", "svg", "png"]:
output_file = f"{output_file_without_suffix}.{suffix}"
# Call the `mmdc` command to convert the Mermaid code to a PNG
logger.info(f"Generating {output_file}..")
if config.mermaid.puppeteer_config:
commands = [
config.mermaid.path,
"-p",
config.mermaid.puppeteer_config,
"-i",
str(tmp),
"-o",
output_file,
"-w",
str(width),
"-H",
str(height),
]
else:
commands = [config.mermaid.path, "-i", str(tmp), "-o", output_file, "-w", str(width), "-H", str(height)]
process = await asyncio.create_subprocess_shell(
" ".join(commands), stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE
)
stdout, stderr = await process.communicate()
if stdout:
logger.info(stdout.decode())
if stderr:
logger.warning(stderr.decode())
else:
if engine == "playwright":
from metagpt.utils.mmdc_playwright import mermaid_to_file
return await mermaid_to_file(mermaid_code, output_file_without_suffix, width, height)
elif engine == "pyppeteer":
from metagpt.utils.mmdc_pyppeteer import mermaid_to_file
return await mermaid_to_file(mermaid_code, output_file_without_suffix, width, height)
elif engine == "ink":
from metagpt.utils.mmdc_ink import mermaid_to_file
return await mermaid_to_file(mermaid_code, output_file_without_suffix)
elif engine == "none":
return 0
else:
logger.warning(f"Unsupported mermaid engine: {engine}")
return 0
MMC1 = """
classDiagram
class Main {
-SearchEngine search_engine
+main() str
}
class SearchEngine {
-Index index
-Ranking ranking
-Summary summary
+search(query: str) str
}
class Index {
-KnowledgeBase knowledge_base
+create_index(data: dict)
+query_index(query: str) list
}
class Ranking {
+rank_results(results: list) list
}
class Summary {
+summarize_results(results: list) str
}
class KnowledgeBase {
+update(data: dict)
+fetch_data(query: str) dict
}
Main --> SearchEngine
SearchEngine --> Index
SearchEngine --> Ranking
SearchEngine --> Summary
Index --> KnowledgeBase
"""
MMC2 = """
sequenceDiagram
participant M as Main
participant SE as SearchEngine
participant I as Index
participant R as Ranking
participant S as Summary
participant KB as KnowledgeBase
M->>SE: search(query)
SE->>I: query_index(query)
I->>KB: fetch_data(query)
KB-->>I: return data
I-->>SE: return results
SE->>R: rank_results(results)
R-->>SE: return ranked_results
SE->>S: summarize_results(ranked_results)
S-->>SE: return summary
SE-->>M: return summary
"""
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