devNull - Cross-platform special variable like pathSep/lineSep

[solvingj]

Description

In #2406 I requested pathSep as a special platform variable with ";" for windows, and ":" for posix.

This is a similar request for making it easy to suppress output in a similar way. This one is probably less agreeable because it's got a few assumptions baked in, but here's my current implementation on all my Taskfiles.

vars:
  DEVNULL: '{{if eq .OS "windows"}}NUL 2>&1{{else}}/dev/null 2>&1{{end}}'

[andreynering]

Hi @solvingj,

This should not be needed at all because /dev/null should actually work on Windows!

We use a shell interpreter, and have implemented a "fake" /dev/null that redirects to io.Discard.

[solvingj]

Thanks!! I'll be cautiously optimistic u til I can test tomorrow, but It wasn't working on my first attempts, and I'm not sure how it could work for all multi line cmd scripts.