[package] base-files: kill remaining processes after running user hooks (#10461)

[openwrt.git] / package / base-files / files / sbin / sysupgrade

diff --git a/package/base-files/files/sbin/sysupgrade b/package/base-files/files/sbin/sysupgrade
index 3d76bb3..cf79114 100755 (executable)
--- a/package/base-files/files/sbin/sysupgrade
+++ b/package/base-files/files/sbin/sysupgrade
@@ -10,6 +10,7 @@ export SAVE_CONFIG=1
 export SAVE_OVERLAY=0
 export DELAY=
 export CONF_IMAGE=
+export HELP=0
 
 # parse options
 while [ -n "$1" ]; do 
@@ -21,6 +22,7 @@ while [ -n "$1" ]; do
                -n) export SAVE_CONFIG=0;;
                -c) export SAVE_OVERLAY=1;;
                -f) export CONF_IMAGE="$2"; shift;;
+               -h|--help) export HELP=1; break;;
                -*)
                        echo "Invalid option: $1"
                        exit 1
@@ -36,7 +38,7 @@ export CONF_TAR=/tmp/sysupgrade.tgz
 export ARGV="$*"
 export ARGC="$#"
 
-[ -z "$ARGV" ] && {
+[ -z "$ARGV" -o $HELP -gt 0 ] && {
        cat <<EOF
 Usage: $0 [options] <image file or URL>
 
@@ -48,6 +50,7 @@ Options:
        -n           do not save configuration over reflash
        -q           less verbose
        -v           more verbose
+       -h / --help  display this help
 
 EOF
        exit 1
@@ -124,8 +127,13 @@ elif ask_bool $SAVE_CONFIG "Keep config files over reflash"; then
 else
        export SAVE_CONFIG=0
 fi
+
 run_hooks "" $sysupgrade_pre_upgrade
 
+kill_remaining TERM
+sleep 3
+kill_remaining KILL
+
 if [ -n "$(rootfs_type)" ]; then
        v "Switching to ramdisk..."
        run_ramfs '. /etc/functions.sh; include /lib/upgrade; do_upgrade'