All files / src/utils child-process.js

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'use strict';
 
const { ServerlessCommandError } = require('../common/errors');
 
let childProcesses = [];
 
const wrap = (childProcess, params = {}) => {
    childProcesses.push(childProcess);
 
    return new Promise((resolve, reject) => {
        let log = '';
        let errorLog = '';
 
        childProcess.stdout.on('data', data => {
            log += data.toString();
        });
 
        childProcess.stderr.on('data', data => {
            errorLog += data.toString();
        });
 
        if (params.stdout) {
            childProcess.stdout.pipe(params.stdout);
        }
 
        if (params.stderr) {
            childProcess.stderr.pipe(params.stderr);
        }
 
        childProcess.on('close', code => {
            // remove from sub-processes list
            childProcesses = childProcesses.filter(
                childProcessItem => childProcessItem !== childProcess
            );
 
            if (code !== 0) {
                reject(new ServerlessCommandError(code, log, errorLog));
            } else {
                resolve(log);
            }
        });
    });
};
 
const kill = () => {
    childProcesses.map(child => {
        child.kill();
    });
};
 
module.exports = { wrap, kill };