Re: Eshell's external pipe module interferes with other argument parsing hooks

[Jim Porter]

On 3/31/2022 4:11 PM, Jim Porter wrote:
> On 3/31/2022 2:56 PM, Sean Whitton wrote:
> > On Thu 31 Mar 2022 at 01:58PM -07, Jim Porter wrote:
> > > 1) Eshell's built-in pipelines are slow because they go through Emacs
> > > buffers.
[snip]
> > > For (1), Eshell could opportunistically use external pipelines without
> > > any special syntax.
> [snip]
> > This could just be added to Eshell right now, right?  Definitely useful.
>
> Unless there's a reason for Eshell's current behavior that I'm not aware 
> of, I can't think of any problems with doing this, so long as everything 
> is escaped properly.

On the subject of Eshell's built-in pipelines being slow, this might be 
of interest: 
<https://tdodge.consulting/blog/eshell/background-output-thread>. The 
author seems to have some interest in upstreaming the patch too[1].

I haven't had a chance to look at the patch in very much detail yet, but 
if this worked for all cases (apparently it's limited to PTY 
subprocesses for now, and I'm sure there are other cases where it would 
need to stay out of the way), it would be a huge improvement to 
"regular" Eshell pipes.

- Jim

[1] 
https://www.reddit.com/r/emacs/comments/usghki/comment/i93hkmv/?utm_source=reddit&utm_medium=web2x&context=3