roc/lib/cli/execute.js

Build modern web applications easily

'use strict';

exports.__esModule = true;
exports.execute = execute;

require('source-map-support/register');

var _child_process = require('child_process');

/**
 * Executes a command string.
 *
 * Quite simple in its current state and should be expected to change in the future.
 * Can manage multiple commands if they are divided by either & or &&. Important that there is spacing on both sides.
 *
 * @param {string} command - A command string that should run.
 * @returns {Promise} - A promise that is resolved when all the commands are completed.
 */

function execute(command) {
    var parallelCommands = command.split(/ & /);
    return executeNext(parallelCommands);
}

function executeNext(parallelCommands) {
    var syncCommand = parallelCommands.shift();
    if (syncCommand) {
        return Promise.all([runCommand(syncCommand), executeNext(parallelCommands)]);
    }
    return Promise.resolve();
}

function runCommand(syncCommand) {
    var syncCommands = syncCommand.split(/ && /);
    var command = syncCommands.shift();
    var parts = command.split(/\s+/g);
    var cmd = parts[0];
    var args = parts.slice(1);
    return new Promise(function (resolve) {
        _child_process.spawn(cmd, args, { stdio: 'inherit' }).on('exit', function (code) {
            if (code) {
                /* eslint-disable no-process-exit */
                return process.exit(code);
                /* eslint-enable */
            }
            executeNext(syncCommands).then(resolve);
        });
    });
}
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