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#!/usr/bin/env node
// Usage: ./run-agent.js <agent-name> <agent-func> <agent-data>
const path = require("path");
const { readFile, writeFile } = 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(agentName, 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 && agentName.endsWith(".js")) {
agentName = agentName.slice(0, -3);
}
if (!agentData || !agentFunc || !agentName) {
console.log(`Usage: ./run-agent.js <agent-name> <agent-func> <agent-data>`);
process.exit(1);
}
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) {
let lines = [];
try {
const data = await readFile(filePath, "utf-8");
lines = data.split("\n");
} catch {
return;
}
const envVars = new Map();
for (const line of lines) {
if (line.trim().startsWith("#") || line.trim() === "") {
continue;
}
const [key, ...valueParts] = line.split("=");
const envName = key.trim();
if (!process.env[envName]) {
let envValue = valueParts.join("=").trim();
if ((envValue.startsWith('"') && envValue.endsWith('"')) || (envValue.startsWith("'") && envValue.endsWith("'"))) {
envValue = envValue.slice(1, -1);
}
envVars.set(envName, envValue);
}
}
for (const [envName, envValue] of envVars.entries()) {
process.env[envName] = envValue;
}
}
async function run(agentName, agentPath, agentFunc, agentData) {
if (os.platform() === "win32") {
agentPath = `file://${agentPath}`;
}
const mod = await import(agentPath);
if (!mod || !mod[agentFunc]) {
throw new Error(`Not module function '${agentFunc}' at '${agentPath}'`);
}
const value = await mod[agentFunc](agentData);
await returnToLLM(value);
await dumpResult(`${agentName}:${agentFunc}`);
}
async function returnToLLM(value) {
if (value === null || value === undefined) {
return;
}
const write = async (value) => {
if (process.env["LLM_OUTPUT"]) {
await writeFile(process.env["LLM_OUTPUT"], value);
} else {
process.stdout.write(value);
}
}
const type = typeof value;
if (type === "string" || type === "number" || type === "boolean") {
await write(value.toString());
} 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));
await write(valueStr);
}
}
}
async function dumpResult(name) {
if (!process.env["LLM_DUMP_RESULTS"] || !process.env["LLM_OUTPUT"] || !process.stdout.isTTY) {
return;
}
let showResult = false;
try {
if (new RegExp(`\\b(${process.env["LLM_DUMP_RESULTS"]})\\b`).test(name)) {
showResult = true;
}
} catch { }
if (!showResult) {
return;
}
let data = "";
try {
data = await readFile(process.env["LLM_OUTPUT"], "utf-8");
} catch {
return;
}
process.stdout.write(`\x1b[2m----------------------\n${data}\n----------------------\x1b[0m\n`);
}
main().catch((err) => {
console.error(err);
process.exit(1);
});
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