[Omake] omake equivalent of make's $?

[Aleksey Nogin]

On 19.07.2007 09:16, Bryce Nichols wrote:

> I'll look into it more later, but let me know if there's a simple way 
> that I could leverage omake's cache to do the same thing, but based on 
> digests rather than just dates.

Bryce,

I believe you just need to go along the lines of Jason's copy-if-newer 
function.

Aleksey

>> For installing, you may wish to use file digests instead of 
>> modification times.  This will be faster if the files are large.
>>
>>   Shell. +=
>>      copy-if-newer(argv) =
>>          src = $(nth 0, $(argv))
>>          dst = $(nth 1, $(argv))
>>          if $(not $(equal $(digest-optional $(dst)), $(digest $(src))))
>>              cp $(src) $(dst)


-- 
Aleksey Nogin, Research Scientist
Advanced Technologies Department, Information & System Sciences Lab
HRL Laboratories, LLC, Malibu, CA