Re: git: 0dfaefa97547 - main - depend-cleanup.sh: Simplify the logic, and clean bootstrap tools.

From: Dag-Erling_Smørgrav <des_at_FreeBSD.org>
Date: Thu, 09 Feb 2023 09:46:49 UTC
Alexander Leidinger <Alexander@leidinger.net> writes:
> You change from "no fork+exec if the file doesn't exist" (due to "if"
> and "[" being shell-builtins) to "always fork+exec". On fast machines
> surely not an issue, on slow ones, it may make a difference (I have an
> old amd64 machine at an ISP which takes days to do a buildworld with
> -j2 due to not much memory, only 2 cores, old HDs, and other stuff
> going on in parallel).

Have you measured this?  Because the whole point of clean_dep() is that
the file it looks for nearly always exists.  It's the grep we're not
sure of.  So checking if the file exists is nearly always a waste.

> While the .depend.* namespace is surely controlled by us, would it
> make sense to change the glob to ".{o,pico}" instead of ".*o" instead
> to prevent unexpected surprises in the future?

Our sh does not support the {} syntax.  Besides, what would it change?
What else would match .*o but not .{o,pico}?

DES
--
Dag-Erling Smørgrav - des@des.no