openwrtv4/include/shell.sh
Felix Fietkau 43f485f334 include/shell.sh: remove getvar()
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 43020
2014-10-22 08:57:30 +00:00

33 lines
491 B
Bash

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 $retval
}
}
)}
md5s() {
cat "$@" | (
md5sum 2>/dev/null ||
md5
) | awk '{print $1}'
}