Not all output is being displayed

I don’t know why exactly, but if I run an async exec command fig up, from https://github.com/docker/fig it does not display all of the output. Don’t know how I can help with any more detail, but it is when it logs the output from the docker containers. If there is any other way I can help nailing down the specifics of this bug, let me know. (silent is false of course)

[jakub-g]

I’ve noticed similar for git clone command on Windows 7 machine with node 0.12.7 (running in sync mode)

Consider following js

require('shelljs/global');
exec('git clone https://github.com/jakub-g/empty-repo.git');

The result is that I see only the first line

me@mymachine ~/git
$ node shelltest.js
Cloning into 'empty-repo'...

[TimothyGu]

Indeed, in git-clone(1) it is written as follows:

       --progress
           Progress status is reported on the standard error stream by default
           when it is attached to a terminal, unless -q is specified. This
           flag forces progress status even if the standard error stream is
           not directed to a terminal.

And as expected:

$ git clone --progress https://github.com/jakub-g/empty-repo.git 2>&1 | cat
Cloning into 'empty-repo'...
remote: Counting objects: 4, done.        
remote: Total 4 (delta 0), reused 0 (delta 0), pack-reused 4        
Checking connectivity... done.
$ rm -rf empty-repo
$ node -e "require('child_process').execSync('git clone --progress https://github.com/jakub-g/empty-repo.git');"
Cloning into 'empty-repo'...
remote: Counting objects: 4, done.        
remote: Total 4 (delta 0), reused 0 (delta 0), pack-reused 4        
Checking connectivity... done.
$ rm -rf empty-repo
$ node -e "require('shelljs').exec('git clone --progress https://github.com/jakub-g/empty-repo.git')"
Cloning into 'empty-repo'...
remote: Counting objects: 4, done.        
remote: Total 4 (delta 0), reused 0 (delta 0), pack-reused 4        
Checking connectivity... done.