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openwrt-xburst/include/shell.sh
nbd c324196256 make busybox autorebuild on relevant config changes
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@6651 3c298f89-4303-0410-b956-a3cf2f4a3e73
2007-03-23 19:13:08 +00:00

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getvar() {
eval "echo \"\${$1}\""
}
var2file() {
local var
eval "var=\"\${$1}\""
if [ -n "$var" ]; then echo "$var" > "$2"; fi
}
isset() {
local var
eval "var=\"\${$1}\""
[ -n "$var" ]
}
trapret() {(
local retvals="$1"; shift
local cmd="$1"; shift
for retval in $(echo $retvals); do
local trap_$retval=1
done
"$cmd" "$@" || {
local retval="$?"
eval "trapped=\${trap_$retval}"
[ -n "$trapped" ] || {
return $retval
}
}
)}
md5s() {
which md5sum 2>&- >&- && md5sum "$@" | awk '{print $1}' || md5 "$@"
}