pipeline.get('deps') emits invalid data

[jescalan]

Reproduce:

var b = browserify(args);
b.pipeline.get('deps').pipe(process.stdout);

Truncated error message:

Uncaught TypeError: invalid data
    at WriteStream.Socket.write (net.js:614:11)
    at Labeled.ondata (/Users/jeff/Sites/roots-browserify/node_modules/browserify/node_modules/labeled-stream-splicer/node_modules/stream-splicer/node_modules/readable-stream/lib/_stream_readable.js:565:20)

Sorry if I'm screwing up the usage here, and would appreciate any corrections. I'm not a streams expert by any means, just used the docs as best I was able to. As a side note, when I listen for the data event on this stream it does emit the correct data, but the stream never emits an end event. I assume these two issues are related somehow.

[ghost]

'deps' is an object stream so you will need to either consume the 'data' events or pipe into another stream like:

b.pipeline.get('deps').pipe(through.obj(function (row, enc, next) {
   console.log(row);
   this.push(row);
   next();
}));

You won't get an 'end' event if the stream isn't being consumed, which is how streams2 work.

[jescalan]

Ok, so there's no way for me to use this stream normally as an event emitter, I need to use through in order to consume it? For example, this doesn't work:

b.pipeline.get('deps')
  .on('data', console.log)
  .on('end', function(){ console.log('done!'); })

Is there a way to get functionality like this without installing additional external dependencies?

[ghost]

You need to also consume the bundle by calling b.bundle() and piping it somewhere or calling .resume() on the bundle stream.

[jescalan]

I'm sorry if I'm being thick here, but I don't entirely understand. Do you mean "no" is the answer to my last question, and in addition I need to call b.bundle().resume() in order for this to work? Is it "yes" but only if I make the bundle call?

Is there any chance if you have a moment that you could give a quick example? All I'm really after is a way to grab the dependencies of a project with the least amount of overhead possible. I know you are a busy man, and I really appreciate both your great work on browserify and any time you can spare to help out here 😀

[ghost]

Like --list?

$ browserify --list main.js
/tmp/node_modules/gamma/index.js
/tmp/main.js

or the same thing in code:

var through = require('through2');
var b = require('browserify')(__dirname + '/main.js');
b.pipeline.get('deps').push(through.obj(function (row, enc, next) {
    console.log(row.file);
    this.push(row);
    next();
}));
b.bundle();

or you could listen on 'dep' events:

var through = require('through2');
var b = require('browserify')(__dirname + '/main.js');
b.on('dep', function (row) {
    console.log(row.file);
});
b.bundle();