openwrt/scripts/sysupgrade-tar.sh

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#!/bin/sh
board=""
kernel=""
rootfs=""
outfile=""
err=""
while [ "$1" ]; do
case "$1" in
"--board")
board="$2"
shift
shift
continue
;;
"--kernel")
kernel="$2"
shift
shift
continue
;;
"--rootfs")
rootfs="$2"
shift
shift
continue
;;
*)
if [ ! "$outfile" ]; then
outfile=$1
shift
continue
fi
;;
esac
done
if [ ! -n "$board" -o ! -r "$kernel" -a ! -r "$rootfs" -o ! "$outfile" ]; then
echo "syntax: $0 [--board boardname] [--kernel kernelimage] [--rootfs rootfs] out"
exit 1
fi
tmpdir="$( mktemp -d 2> /dev/null )"
if [ -z "$tmpdir" ]; then
# try OSX signature
tmpdir="$( mktemp -t 'ubitmp' -d )"
fi
if [ -z "$tmpdir" ]; then
exit 1
fi
mkdir -p "${tmpdir}/sysupgrade-${board}"
echo "BOARD=${board}" > "${tmpdir}/sysupgrade-${board}/CONTROL"
[ -z "${rootfs}" ] || cp "${rootfs}" "${tmpdir}/sysupgrade-${board}/root"
[ -z "${kernel}" ] || cp "${kernel}" "${tmpdir}/sysupgrade-${board}/kernel"
mtime=""
if [ -n "$SOURCE_DATE_EPOCH" ]; then
mtime="--mtime=@${SOURCE_DATE_EPOCH}"
fi
(cd "$tmpdir"; tar --sort=name -cvf sysupgrade.tar sysupgrade-${board} ${mtime})
err="$?"
if [ -e "$tmpdir/sysupgrade.tar" ]; then
cp "$tmpdir/sysupgrade.tar" "$outfile"
else
err=2
fi
rm -rf "$tmpdir"
exit $err