buildroot/support/scripts/genimage.sh
Carlos Santos 31d1fb27b0 support/scripts/genimage.sh: pass an empty rootpath to genimage
genimage makes a full copy of the given rootpath to ${GENIMAGE_TMP}/root
so passing TARGET_DIR would be a waste of time and disk space. We don't
rely on genimage to build the rootfs image, just to insert a pre-built
one in the disk image.

Signed-off-by: Carlos Santos <unixmania@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2019-10-27 12:19:32 +01:00

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#!/usr/bin/env bash
die() {
cat <<EOF >&2
Error: $@
Usage: ${0} -c GENIMAGE_CONFIG_FILE
EOF
exit 1
}
# Parse arguments and put into argument list of the script
opts="$(getopt -n "${0##*/}" -o c: -- "$@")" || exit $?
eval set -- "$opts"
GENIMAGE_TMP="${BUILD_DIR}/genimage.tmp"
while true ; do
case "$1" in
-c)
GENIMAGE_CFG="${2}";
shift 2 ;;
--) # Discard all non-option parameters
shift 1;
break ;;
*)
die "unknown option '${1}'" ;;
esac
done
[ -n "${GENIMAGE_CFG}" ] || die "Missing argument"
# Pass an empty rootpath. genimage makes a full copy of the given rootpath to
# ${GENIMAGE_TMP}/root so passing TARGET_DIR would be a waste of time and disk
# space. We don't rely on genimage to build the rootfs image, just to insert a
# pre-built one in the disk image.
trap 'rm -rf "${ROOTPATH_TMP}"' EXIT
ROOTPATH_TMP="$(mktemp -d)"
rm -rf "${GENIMAGE_TMP}"
genimage \
--rootpath "${ROOTPATH_TMP}" \
--tmppath "${GENIMAGE_TMP}" \
--inputpath "${BINARIES_DIR}" \
--outputpath "${BINARIES_DIR}" \
--config "${GENIMAGE_CFG}"