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#!/usr/bin/env node
const path = require("path");
const { createWriteStream } = require("fs");
const { readFile } = require("fs/promises");
const os = require("os");
async function main() {
const [agentName, agentFunc, rawData] = parseArgv("run-agent.js");
const agentData = parseRawData(rawData);
const rootDir = path.resolve(__dirname, "..");
await setupEnv(rootDir, agentName, agentFunc);
const agentToolsPath = path.resolve(rootDir, `agents/${agentName}/tools.js`);
await run(agentToolsPath, agentFunc, agentData);
}
function parseArgv(thisFileName) {
let agentName = process.argv[1];
let agentFunc = "";
let agentData = null;
if (agentName.endsWith(thisFileName)) {
agentName = process.argv[2];
agentFunc = process.argv[3];
agentData = process.argv[4];
} else {
agentName = path.basename(agentName);
agentFunc = process.argv[2];
agentData = process.argv[3];
}
if (agentName.endsWith(".js")) {
agentName = agentName.slice(0, -3);
}
return [agentName, agentFunc, agentData];
}
function parseRawData(data) {
if (!data) {
throw new Error("No JSON data");
}
try {
return JSON.parse(data);
} catch {
throw new Error("Invalid JSON data");
}
}
async function setupEnv(rootDir, agentName, agentFunc) {
await loadEnv(path.resolve(rootDir, ".env"));
process.env["LLM_ROOT_DIR"] = rootDir;
process.env["LLM_AGENT_NAME"] = agentName;
process.env["LLM_AGENT_FUNC"] = agentFunc;
process.env["LLM_AGENT_ROOT_DIR"] = path.resolve(
rootDir,
"agents",
agentName,
);
process.env["LLM_AGENT_CACHE_DIR"] = path.resolve(
rootDir,
"cache",
agentName,
);
}
async function loadEnv(filePath) {
try {
const data = await readFile(filePath, "utf-8");
const lines = data.split("\n");
lines.forEach((line) => {
if (line.trim().startsWith("#") || line.trim() === "") return;
const [key, ...value] = line.split("=");
const envName = key.trim();
if (!process.env[envName]) {
process.env[envName] = value.join("=").trim();
}
});
} catch { }
}
async function run(agentPath, agentFunc, agentData) {
let mod;
if (os.platform() === "win32") {
agentPath = `file://${agentPath}`;
}
try {
mod = await import(agentPath);
} catch {
throw new Error(`Unable to load agent tools at '${agentPath}'`);
}
if (!mod || !mod[agentFunc]) {
throw new Error(`Not module function '${agentFunc}' at '${agentPath}'`);
}
const value = await mod[agentFunc](agentData);
returnToLLM(value);
await dumpResult();
}
function returnToLLM(value) {
if (value === null || value === undefined) {
return;
}
let writer = process.stdout;
if (process.env["LLM_OUTPUT"]) {
writer = createWriteStream(process.env["LLM_OUTPUT"]);
}
const type = typeof value;
if (type === "string" || type === "number" || type === "boolean") {
writer.write(value);
} else if (type === "object") {
const proto = Object.prototype.toString.call(value);
if (proto === "[object Object]" || proto === "[object Array]") {
const valueStr = JSON.stringify(value, null, 2);
require("assert").deepStrictEqual(value, JSON.parse(valueStr));
writer.write(valueStr);
}
}
}
async function dumpResult() {
if (!process.stdout.isTTY) {
return;
}
if (!process.env["LLM_OUTPUT"]) {
return;
}
let showResult = false;
const agentName = process.env["LLM_AGENT_NAME"].toUpperCase().replace(/-/g, '_');
const agentEnvName = `LLM_AGENT_DUMP_RESULT_${agentName}`;
const agentEnvValue = process.env[agentEnvName] || process.env["LLM_AGENT_DUMP_RESULT"];
const funcName = process.env["LLM_AGENT_FUNC"].toUpperCase().replace(/-/g, '_');
const funcEnvName = `${agentEnvName}_${funcName}`;
const funcEnvValue = process.env[funcEnvName];
if (agentEnvValue === '1' || agentEnvValue === 'true') {
if (funcEnvValue !== '0' && funcEnvValue !== 'false') {
showResult = true;
}
} else {
if (funcEnvValue === '1' || funcEnvValue === 'true') {
showResult = true;
}
}
if (!showResult) {
return;
}
let data = "";
try {
data = await readFile(process.env["LLM_OUTPUT"], "utf-8");
} catch {
return;
}
process.stdout.write(`\x1b[2m----------------------\n${data}\n----------------------\x1b[0m\n`);
}
(async () => {
try {
await main();
} catch (err) {
console.error(err?.message || err);
process.exit(1);
}
})();
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