How to get output of piped process?

[Danny Arends]

On Friday, 19 February 2021 at 15:39:25 UTC, kdevel wrote:
> On Friday, 19 February 2021 at 13:42:46 UTC, Steven 
> Schveighoffer wrote:
>
> [...]
>
>> [...]
>
> Sure.
>
>> [...]
>
> As application programmer I don't want to check any error codes.
> Thankfully I don't have to in D. There is a nice off-topic 
> example
> from the linux kernel [1] what happens when people do not check
> return values [1].
>
>> [...]
>
> Fortunately the D runtime /does/ take care and it throws---if 
> the signal
> is ignored beforehand. I filed issue 21649.
>
> [1] <https://lore.kernel.org/patchwork/patch/260181/>
>     move RLIMIT_NPROC check from set_user() to 
> do_execve_common()

Perhaps a bit late, but this is how I deal with pipes and 
spawnShell.
Read one byte at a time from stdout and stderr:

https://github.com/DannyArends/DaNode/blob/master/danode/process.d

Danny