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#!/usr/bin/env node
// Usage: ./run-tool.js <tool-name> <tool-data>
const path = require("path");
const { readFile, writeFile } = require("fs/promises");
const os = require("os");
async function main() {
const [toolName, rawData] = parseArgv("run-tool.js");
const toolData = parseRawData(rawData);
const rootDir = path.resolve(__dirname, "..");
await setupEnv(rootDir, toolName);
const toolPath = path.resolve(rootDir, `tools/${toolName}.js`);
await run(toolName, toolPath, "run", toolData);
}
function parseArgv(thisFileName) {
let toolName = process.argv[1];
let toolData = null;
if (toolName.endsWith(thisFileName)) {
toolName = process.argv[2];
toolData = process.argv[3];
} else {
toolName = path.basename(toolName);
toolData = process.argv[2];
}
if (toolName && toolName.endsWith(".js")) {
toolName = toolName.slice(0, -3);
}
if (!toolData || !toolName) {
console.log(`Usage: ./run-tools.js <tool-name> <tool-data>`);
process.exit(1);
}
return [toolName, toolData];
}
function parseRawData(data) {
if (!data) {
throw new Error("No JSON data");
}
try {
return JSON.parse(data);
} catch {
throw new Error("Invalid JSON data");
}
}
async function setupEnv(rootDir, toolName) {
await loadEnv(path.resolve(rootDir, ".env"));
process.env["LLM_ROOT_DIR"] = rootDir;
process.env["LLM_TOOL_NAME"] = toolName;
process.env["LLM_TOOL_CACHE_DIR"] = path.resolve(rootDir, "cache", toolName);
}
async function loadEnv(filePath) {
let lines = [];
try {
const data = await readFile(filePath, "utf-8");
lines = data.split("\n");
} catch {
return;
}
const envVars = new Map();
for (const line of lines) {
if (line.trim().startsWith("#") || line.trim() === "") {
continue;
}
const [key, ...valueParts] = line.split("=");
const envName = key.trim();
if (!process.env[envName]) {
let envValue = valueParts.join("=").trim();
if ((envValue.startsWith('"') && envValue.endsWith('"')) || (envValue.startsWith("'") && envValue.endsWith("'"))) {
envValue = envValue.slice(1, -1);
}
envVars.set(envName, envValue);
}
}
for (const [envName, envValue] of envVars.entries()) {
process.env[envName] = envValue;
}
}
async function run(toolName, toolPath, toolFunc, toolData) {
if (os.platform() === "win32") {
toolPath = `file://${toolPath}`;
}
const mod = await import(toolPath);
if (!mod || !mod[toolFunc]) {
throw new Error(`Not module function '${toolFunc}' at '${toolPath}'`);
}
const value = await mod[toolFunc](toolData);
await returnToLLM(value);
await dumpResult(toolName);
}
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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