生成`git clone`后将输出流式传输到标准输出

Question

I'm just trying to run git clone from node and stream the output into stdout just like running from shell normally would, but after using child_process.spawn , I can't get the output to pipe into stdout. Currently I'm using:

child = spawn('git', ['clone', url]);
child.stdout.pipe(process.stdout);
child.stderr.pipe(process.stderr);

But I only see "Cloning into 'directory'" message and not the remote messages and "Receiving objects...".

What am I doing wrong?

Answer 1

By default, git clone only shows progress when it's running in a terminal. When it's not running in a terminal progress can be enabled with the --progress argument :

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.

However I'm not sure that that will do exactly what you expect. The progress output isn't simple output; values change in place. I'm not exactly sure how nicely that will play with child_process.spawn() .

Note also that output is to STDERR , not STDOUT .