X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/feaf88f721ae706a43e144f7b7975d915aad4d7e..77ec3b2de9bb1880b258ec6aaf4949f146f6fd8d:/package/base-files/files/sbin/sysupgrade

diff --git a/package/base-files/files/sbin/sysupgrade b/package/base-files/files/sbin/sysupgrade
index 0fb07530e..be11c5bf3 100755
--- a/package/base-files/files/sbin/sysupgrade
+++ b/package/base-files/files/sbin/sysupgrade
@@ -10,6 +10,9 @@ export SAVE_CONFIG=1
 export SAVE_OVERLAY=0
 export DELAY=
 export CONF_IMAGE=
+export CONF_BACKUP=
+export HELP=0
+export FORCE=0
 
 # parse options
 while [ -n "$1" ]; do 
@@ -20,7 +23,10 @@ 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;;
+		-F|--force) export FORCE=1; shift;;
+		-h|--help) export HELP=1; break;;
 		-*)
 			echo "Invalid option: $1"
 			exit 1
@@ -36,7 +42,7 @@ export CONF_TAR=/tmp/sysupgrade.tgz
 export ARGV="$*"
 export ARGC="$#"
 
-[ -z "$ARGV" ] && {
+[ -z "$ARGV" -a -z "$CONF_BACKUP" -o $HELP -gt 0 ] && {
 	cat <<EOF
 Usage: $0 [options] <image file or URL>
 
@@ -45,18 +51,38 @@ 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
+	-F / --force
+	             Flash image even if image checks fail, this is dangerous!
 	-q           less verbose
 	-v           more verbose
+	-h / --help  display this help
 
 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="$1"
-	find /etc/config /etc/passwd /etc/group /etc/dropbear \
-		/etc/firewall.user /etc/rc.local -type f > "$file"
+	( 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
 }
 
@@ -80,6 +106,8 @@ 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
@@ -90,9 +118,14 @@ 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
@@ -100,8 +133,13 @@ type platform_check_image >/dev/null 2>/dev/null || {
 
 for check in $sysupgrade_image_check; do
 	( eval "$check \"\$ARGV\"" ) || {
-		echo "Image check '$check' failed."
-		exit 1
+		if [ $FORCE -eq 1 ]; then
+			echo "Image check '$check' failed but --force given - will update anyway!"
+			break
+		else
+			echo "Image check '$check' failed."
+			exit 1
+		fi
 	}
 done
 
@@ -122,8 +160,13 @@ 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'