[package] base-files: add -h and --help options to sysupgrade (#9728)

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

diff --git a/package/base-files/files/sbin/sysupgrade b/package/base-files/files/sbin/sysupgrade
index 1210e6e509fdf6d64c05da030b2b5c7b303fb996..7efb2b43654eaf1fced60e970c09a4e6b14e1aa6 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
@@ -55,8 +58,9 @@ EOF
 
 add_uci_conffiles() {
        local file="$1"
-       ( find /etc/config /etc/passwd /etc/group /etc/dropbear \
-               /etc/firewall.user /etc/rc.local -type f;
+       ( find $(sed -ne '/^[[:space:]]*$/d; /^#/d; p' \
+               /etc/sysupgrade.conf /lib/upgrade/keep.d/* 2>/dev/null) \
+               -type f 2>/dev/null;
          opkg list-changed-conffiles ) | sort -u > "$file"
        return 0
 }