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-rwxr-xr-xpackage/base-files/files/sbin/sysupgrade28
1 files changed, 26 insertions, 2 deletions
diff --git a/package/base-files/files/sbin/sysupgrade b/package/base-files/files/sbin/sysupgrade
index cf79114cb..fcf01b02d 100755
--- 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 CONF_BACKUP=
export HELP=0
# parse options
@@ -21,6 +22,7 @@ while [ -n "$1" ]; do
-q) export VERBOSE="$(($VERBOSE - 1))";;
-n) export SAVE_CONFIG=0;;
-c) export SAVE_OVERLAY=1;;
+ -b|--create-backup) export CONF_BACKUP="$2"; shift;;
-f) export CONF_IMAGE="$2"; shift;;
-h|--help) export HELP=1; break;;
-*)
@@ -38,7 +40,7 @@ export CONF_TAR=/tmp/sysupgrade.tgz
export ARGV="$*"
export ARGC="$#"
-[ -z "$ARGV" -o $HELP -gt 0 ] && {
+[ -z "$ARGV" -a -z "$CONF_BACKUP" -o $HELP -gt 0 ] && {
cat <<EOF
Usage: $0 [options] <image file or URL>
@@ -47,6 +49,10 @@ Options:
-f <config> restore configuration from .tar.gz (file or url)
-i interactive mode
-c attempt to preserve all changed files in /etc/
+ -b / --create-backup <file>
+ create .tar.gz of files specified in sysupgrade.conf
+ then exit. Does not flash an image. If file is '-',
+ i.e. stdout, verbosity is set to 0 (i.e. quiet).
-n do not save configuration over reflash
-q less verbose
-v more verbose
@@ -56,6 +62,17 @@ EOF
exit 1
}
+[ -n "$ARGV" -a -n "$CONF_BACKUP" ] && {
+ cat <<-EOF
+ -b/--create-backup does not perform a firmware upgrade. Do not
+ specify both -b and a firmware image.
+ EOF
+ exit 1
+}
+
+# prevent messages from clobbering the tarball when using stdout
+[ "$CONF_BACKUP" = "-" ] && export VERBOSE=0
+
add_uci_conffiles() {
local file="$1"
( find $(sed -ne '/^[[:space:]]*$/d; /^#/d; p' \
@@ -85,6 +102,8 @@ sysupgrade_image_check="platform_check_image"
include /lib/upgrade
do_save_conffiles() {
+ local conf_tar="${1:-$CONF_TAR}"
+
[ -z "$(rootfs_type)" ] && {
echo "Cannot save config while running from ramdisk."
ask_bool 0 "Abort" && exit
@@ -95,9 +114,14 @@ do_save_conffiles() {
v "Saving config files..."
[ "$VERBOSE" -gt 1 ] && TAR_V="v" || TAR_V=""
- tar c${TAR_V}zf "$CONF_TAR" -T "$CONFFILES" 2>/dev/null
+ tar c${TAR_V}zf "$conf_tar" -T "$CONFFILES" 2>/dev/null
}
+if [ -n "$CONF_BACKUP" ]; then
+ do_save_conffiles "$CONF_BACKUP"
+ exit $?
+fi
+
type platform_check_image >/dev/null 2>/dev/null || {
echo "Firmware upgrade is not implemented for this platform."
exit 1