cobol/lib/run/index.js

COBOL bridge for NodeJS which allows you to run COBOL code from NodeJS.

"use strict";

// Dependencies

var Spawn = require("child_process").spawn,
    Fs = require("fs");

/**
 * Run
 * Runs the executable output.
 *
 * @name Run
 * @function
 * @param {String} path The executable path.
 * @param {Object} options An object containing the following fields:
 * @param {Function} callback The callback function.
 */
function Run(path, options, callback) {
    var p = Spawn(path, options.args),
        err = "",
        data = "";

    if (options.remove !== false) {
        Fs.unlink(path, function () {});
    }

    if (options.stdin) {
        options.stdin.pipe(p.stdin);
    }

    if (options.stdout) {
        p.stdout.pipe(options.stdout);
    } else {
        p.stdout.on("data", function (chunk) {
            data += chunk.toString();
        });
    }

    if (options.stderr) {
        p.stderr.pipe(options.stderr);
    } else {
        p.stderr.on("data", function (err) {
            err += err.toString();
        });
    }

    p.on("close", function () {
        callback([null, err][Number(!!err)], data.slice(0, -1));
    });
}

module.exports = Run;