On 2019-06-18 at 06:14:03, Johannes Sixt wrote:
> Am 18.06.19 um 03:29 schrieb brian m. carlson:
> > On 2019-06-17 at 19:05:03, Johannes Schindelin wrote:
> > I'm fine making that change. The original design was because we had
> > other code that used that technique and I didn't see an obviously better
> > solution. Now you've provided one and a good justification.
> 
> Regardless of how it is implemented, I have another gripe with this
> helper: the way it must be used requires a process: $(test_out_to_path $foo)
> 
> And looking through this patch series, I see a gazillion of *new*
> process substitutions $(test_something...) and $(basename $whatever).
> Can't we do something about it?

A command substitution need not invoke another process. In fact, all of
the test_oid calls operate only within the shell. The test_oid_cache and
test_oid_init calls require spawning only expr, and they are typically
limited to one or two per test.

Within reason, I'm happy to try to make things easier for Windows folks
if I can, but it's still the case that process creation is more
expensive on Windows and shell scripting is designed around process
creation. My hope is that Microsoft's work on WSL will help them improve
their Win32 process creation time so it's faster and this becomes less
of an issue.
-- 
brian m. carlson: Houston, Texas, US
OpenPGP: https://keybase.io/bk2204