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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 [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/${toolName}.js`);
await run(toolPath, "run", toolData);
}
function parseArgv(thisFileName) {
let toolName = process.argv[1];
let toolData = null;
if (toolName.endsWith(thisFileName)) {
toolName = process.argv[2];
toolData = process.argv[3];
} else {
toolName = path.basename(toolName);
toolData = process.argv[2];
}
if (toolName.endsWith(".js")) {
toolName = toolName.slice(0, -3);
}
return [toolName, toolData];
}
function parseRawData(data) {
if (!data) {
throw new Error("No JSON data");
}
try {
return JSON.parse(data);
} catch {
throw new Error("Invalid JSON data");
}
}
async function setupEnv(rootDir, toolName) {
await loadEnv(path.resolve(rootDir, ".env"));
process.env["LLM_ROOT_DIR"] = rootDir;
process.env["LLM_TOOL_NAME"] = toolName;
process.env["LLM_TOOL_CACHE_DIR"] = path.resolve(rootDir, "cache", toolName);
}
async function loadEnv(filePath) {
try {
const data = await readFile(filePath, "utf-8");
const lines = data.split("\n");
lines.forEach((line) => {
if (line.trim().startsWith("#") || line.trim() === "") return;
const [key, ...value] = line.split("=");
process.env[key.trim()] = value.join("=").trim();
});
} catch { }
}
async function run(toolPath, toolFunc, toolData) {
let mod;
if (os.platform() === "win32") {
toolPath = `file://${toolPath}`;
}
try {
mod = await import(toolPath);
} catch {
throw new Error(`Unable to load tool at '${toolPath}'`);
}
if (!mod || !mod[toolFunc]) {
throw new Error(`Not module function '${toolFunc}' at '${toolPath}'`);
}
const value = await mod[toolFunc](toolData);
returnToLLM(value);
await dumpResult();
}
function returnToLLM(value) {
if (value === null || value === undefined) {
return;
}
let writer = process.stdout;
if (process.env["LLM_OUTPUT"]) {
writer = createWriteStream(process.env["LLM_OUTPUT"]);
}
const type = typeof value;
if (type === "string" || type === "number" || type === "boolean") {
writer.write(value);
} else if (type === "object") {
const proto = Object.prototype.toString.call(value);
if (proto === "[object Object]" || proto === "[object Array]") {
const valueStr = JSON.stringify(value, null, 2);
require("assert").deepStrictEqual(value, JSON.parse(valueStr));
writer.write(valueStr);
}
}
}
async function dumpResult() {
if (!process.stdout.isTTY) {
return;
}
if (!process.env["LLM_OUTPUT"]) {
return;
}
let showResult = false;
const toolName = process.env["LLM_TOOL_NAME"].toUpperCase().replace(/-/g, '_');
const envName = `LLM_TOOL_DUMP_RESULT_${toolName}`;
const envValue = process.env[envName];
if (process.env.LLM_TOOL_DUMP_RESULT === '1' || process.env.LLM_TOOL_DUMP_RESULT === 'true') {
if (envValue !== '0' && envValue !== 'false') {
showResult = true;
}
} else {
if (envValue === '1' || envValue === '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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