Re: [gentoo-dev] Parallizing ebuilds - 'trivial' ebuilds

[Kevin F. Quinn (Gentoo)]

On Wed, 11 Jan 2006 14:51:46 -0800
"Robin H. Johnson" <robbat2@g.o> wrote:

> I've been cleaning up media-fonts/ to work with modular-X, and I see a
> lot of ebuilds with stuff like this:
>     for font in *.bdf; do
>         /usr/X11R6/bin/bdftopcf ${font} > `basename $font .bdf`.pcf
>     done
>     gzip *.pcf
>
> ['make' suggestion and example makefile snipped]

You could just do it directly in bash:

    for font in *.bdf; do
        pcf=`basename $font`.pcf && \
          /usr/X11R6/bin/bdftopcf ${font} > ${pcf} &&
          gzip ${pcf} &
    done
    wait

You may want to limit the number of parallel processes somewhat (as
with 'make -jN'), which is also easy enough to do:

    n=${MAX_PARALLEL}
    for font in *.bdf; do
        pcf=`basename $font .bdf`.pcf && \
          /usr/X11R6/bin/bdftopcf ${font} > ${pcf} && \
          gzip ${pcf} &
        [[ ${n} -eq 0 ]] && wait && n=${MAX_PARALLEL}
       ((n=${n}-1))
    done
    wait

-- 
Kevin F. Quinn


-- 
Kevin F. Quinn