bitfield/script

[Feature Request] stderr

Closed this issue · 4 comments

Xaelias commented

Yo!
I'm gonna start with an easy one because my golang was never great to begin with, and now I'm rusty :-D

I think you really need an stderr.
There are a lot of use cases. Differentiate between regular output and error output. Output logs to stderr vs data output on stdout, etc. etc.
It's also a very easy addition (again, rusty go).

Unless you have a strong opposition to this, I'll start working on a PR (still reading through your contributor guidelines).

bitfield commented

Thanks for the suggestion! To help us flesh out exactly how the API should look, can you give a small sample program where this is used?

Xaelias commented

Yeah I'm trying to think of an example that's not just "cat something to stderr".
One of the reason is to keep some compatibility with regular command line tools. And I was actually a bit surprised you decided to have exec merge stdout and stderr for that reason.
I'll try to come up with something useful before I put up a PR :-)

bitfield commented

It's traditional to separate stdout and stderr from commands, but I can't recall a time when I actually used that. And it's hard to design a good way to do it in script (see #16 for discussion about how to handle two pipes).

bitfield commented

Closing this as it suffers from the same two-pipe problem (as Sherlock Holmes might have put it) as #16.