Re: [gentoo-dev] Re: [gentoo-commits] gentoo-x86 commit in net-misc/openvpn: ChangeLog openvpn-2.1.3.ebuild

[Amadeusz Żołnowski]

Excerpts from Mike Frysinger's message of Wed Oct 13 20:51:35 +0200 2010:
> path_exists() {
>     local opt=$1
>     [[ ${opt} == -[ao] ]] && shift || opt="-a"
>
>     # no paths -> return false
>     # same behavior as: [[ -e "" ]]
>     [[ $# -eq 0 ]] && return 1
>
>     local p r=0
>     for p in "$@" ; do
>         [[ -e ${p} ]]
>         : $(( r += $? ))
>     done

1) Why check every path in both "and" and "or" cases?

2) Even simpler:
for p; do
  [[ -e $p ]]
  ((r+=$?))
done

>
>     case ${opt} in
>         -a) return $(( r != 0 )) ;;
>         -o) return $(( r == $# )) ;;
>     esac
> }
-- 
Amadeusz Żołnowski

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