Add support for skipping SimpleInit rootfs generation

diff --git a/build.sh b/build.sh
index 4ca3db41b1f5d247c9cb00dfff23a66cb51c0d89..e3371b3c8ca57c19284a07ba8c0a286e688a55cf 100755 (executable)
--- a/build.sh
+++ b/build.sh
@@ -42,6 +42,7 @@ function _help(){
        echo "  --release MODE, -r MODE: Release mode for building, default is 'RELEASE', 'DEBUG' alternatively."
        echo "  --toolchain TOOLCHAIN:   Set toolchain, default is 'GCC5'."
        echo "  --uart, -u:              compile with UART support, print debug messages to uart debug port."
+       echo "  --skip-rootfs-gen:       skip generating SimpleInit rootfs to speed up building."
        echo "  --acpi, -A:              compile DSDT using MS asl with wine"
        echo "  --clean, -C:             clean workspace and output."
        echo "  --distclean, -D:         clean up all files that are not in repo."
@@ -140,7 +141,8 @@ TOOLCHAIN=GCC5
 USE_UART=0
 export OUTDIR="${PWD}"
 export GEN_ACPI=false
-OPTS="$(getopt -o t:d:hacACDO:r:u -l toolchain:,device:,help,all,chinese,acpi,uart,clean,distclean,outputdir:,release: -n 'build.sh' -- "$@")"||exit 1
+export GEN_ROOTFS=true
+OPTS="$(getopt -o t:d:hacACDO:r:u -l toolchain:,device:,help,all,chinese,acpi,skip-rootfs-gen,uart,clean,distclean,outputdir:,release: -n 'build.sh' -- "$@")"||exit 1
 eval set -- "${OPTS}"
 while true
 do     case "${1}" in
@@ -151,6 +153,7 @@ do  case "${1}" in
                -C|--clean)CLEAN=true;shift;;
                -D|--distclean)DISTCLEAN=true;shift;;
                -O|--outputdir)OUTDIR="${2}";shift 2;;
+               --skip-rootfs-gen)GEN_ROOTFS=false;shift;;
                -r|--release)MODE="${2}";shift 2;;
                -t|--toolchain)TOOLCHAIN="${2}";shift 2;;
                -u|--uart)USE_UART=1;shift;;
@@ -242,9 +245,11 @@ do [ -f "${i}" ]||continue
        mkdir -p "${_path}"
        msgfmt -o "${_path}/simple-init.mo" "${i}"
 done
-bash "${_SIMPLE_INIT}/scripts/gen-rootfs-source.sh" \
+if "${GEN_ROOTFS}"
+then bash "${_SIMPLE_INIT}/scripts/gen-rootfs-source.sh" \
        "${_SIMPLE_INIT}" \
        "${_SIMPLE_INIT}/build"
+fi
 if [ "${DEVICE}" == "all" ]
 then   E=0
        for i in "${DEVICES[@]}"