How execute multiple commands on SSH2 using NodeJS

Question

I'm trying to deploy from GitHub using I want to execute more than one command, in order of the array. The code I'm using now is included below.

async.series([
...
// Deploy from GitHub
function (callback) {
    // Console shizzle:
    console.log('');
    console.log('Deploying...'.red.bold);
    console.log();
    console.log();

    var deployFunctions = [
        {
            command: 'cd ' + envOptions.folder + ' && pwd',
            log: false
        },
        {
            command: 'pwd'
        },
        {
            command: 'su ' + envOptions.user,
            log: false
        },
        {
            command: 'git pull'
        },
        {
            command: 'chmod 0777 * -R',
            log: false
        }
    ];
    async.eachSeries(deployFunctions, function (item, callback) {
        deployment.ssh2.exec(item.command, function (err, stream) {
            deployment.logExec(item);
            stream.on('data', function (data, extended) {
                console.log(data.toString().trim());
                console.log();
            });
            function done() {
                callback(err);
            }

            stream.on('exit', done);
            stream.on('end', done);
        });
    }, function () {
        callback();
    });
},
...);

But, after I cd'ed to the right directory, it forgets where it was and starts all over again.

$ cd /some/folder && pwd
/some/folder

$ pwd
/root

Answer 1

@robertklep is correct about why your cd doesn't persist. Each command invokes a distinct shell instance which starts in its initial state. You could prefix each command with cd /home/jansenstok/domains/alcoholtesterwinkel.com/public_html/ && as a quick fix, but really you are setting yourself up for pain. What you want is a shell script with all the power of multiple lines as opposed to a list of individual disconnected commands.

Look at using ssh2's sftp function to transfer a complete shell script to the remote machine as step 1, execute it via exec (/bin/bash /tmp/your_deploy_script.sh) as step 2, and then delete the script as step 3.

Answer 2

I know this is a super old question, but I ran into this problem while trying to manage an ACE through my Node server. The answer didn't work for me, but several searches later led me to a wrapper that worked really well for me. Just wanted to share here because this was the top link in my Google search. It's called ssh2shell and can be found here: https://www.npmjs.com/package/ssh2shell

It's very simple to use, just pass an array of commands and they run one by one waiting for each command to complete before moving on to the next.