cmake-js/lib/processHelpers.js

CMake.js - a Node.js native addon build tool

"use strict";
const spawn = require("child_process").spawn;
const execFile = require("child_process").execFile;

const processHelpers = {
    run: function (command, options) {
        if (!options) options = {};

        return new Promise(function (resolve, reject) {
            const env = Object.assign({}, process.env);
            if (env.Path && env.PATH) {
                if(env.Path !== env.PATH) {
                    env.PATH = env.Path + ';' + env.PATH;
                }
                delete env.Path;
            }
            const child = spawn(command[0], command.slice(1), {
                stdio: options.silent ? "ignore" : "inherit", 
                env
            });
            let ended = false;
            child.on("error", function (e) {
                if (!ended) {
                    reject(e);
                    ended = true;
                }
            });
            child.on("exit", function (code, signal) {
                if (!ended) {
                    if (code === 0) {
                        resolve();
                    }
                    else {
                        reject(new Error("Process terminated: " + code || signal));
                    }
                    ended = true;
                }
            });
        });
    },
    execFile: function(command) {
        return new Promise(function (resolve, reject) {
            execFile(command[0], command.slice(1), function (err, stdout, stderr) {
                if (err) {
                    reject(new Error(err.message + "\n" + (stdout || stderr)));
                }
                else {
                   resolve(stdout);
                }
            });
        });
    }
};

module.exports = processHelpers;