jeroenvisser101 jeroenvisser101 - 3 months ago 67
Javascript Question

How execute multiple commands on SSH2 using NodeJS

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

@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.

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