[darcs-users] can we get rid of perl requirement in our test suite?

[Dan Pascu]

On Thursday 14 May 2009, Salvatore Insalaco wrote:
> On Thu, May 14, 2009 at 6:53 PM, Eric Kow <kowey at darcs.net> wrote:
> > It'd be nice if we could make just one last push to get rid of these.
> > Ideas?
> 
> I tried to substitute the 1mb file generation with something like that:
> 
> while true; do echo -n "a"; done | head -c 1048000
> 
> but it is really really slow :).

That is easy to fix. Just make echo output more chars at a time:

while true; do echo -n "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"; done | 
head -c 1048000


However there is no point in using that construct, when you can actually 
use a much simpler and _much_ faster command to generate your content:

printf "%01048000d" 0 | tr [0] [a]

If you do not care about the char being 'a' and can use a file filled with 
'0' instead, just remove the tr command to make it even faster:

printf "%01048000d" 0


-- 
Dan