[PATCH] base-files: sysupgrade: store status of system-services

[Sven Roederer]

When saving the list of installed pkgs, also store the status of the
system services. The list is created in the etc/backup folder also
and formated as:

/etc/init.d/<service> {enable|disable}

This way it can be sourced after sysupgrade, to restore the previous
state.

Signed-off-by: Sven Roederer <devel-sven at geroedel.de>
---

Currently all services get enabled during image creation. This can cause
issues after upgrade with services explicitly disabled by the user.
With this created list sourced by a simple uci-defaults script the state
can be restored automatically.
Not including such a uci-defaults script by default, as currently the
stored package list is also not reinstalled.


 package/base-files/Makefile              |  2 +-
 package/base-files/files/sbin/sysupgrade | 11 +++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/package/base-files/Makefile b/package/base-files/Makefile
index 0c612b73ca..fbcb694592 100644
--- a/package/base-files/Makefile
+++ b/package/base-files/Makefile
@@ -12,7 +12,7 @@ include $(INCLUDE_DIR)/version.mk
 include $(INCLUDE_DIR)/feeds.mk
 
 PKG_NAME:=base-files
-PKG_RELEASE:=239
+PKG_RELEASE:=240
 PKG_FLAGS:=nonshared
 
 PKG_FILE_DEPENDS:=$(PLATFORM_DIR)/ $(GENERIC_PLATFORM_DIR)/base-files/
diff --git a/package/base-files/files/sbin/sysupgrade b/package/base-files/files/sbin/sysupgrade
index 79927a2b5c..cadce36172 100755
--- a/package/base-files/files/sbin/sysupgrade
+++ b/package/base-files/files/sbin/sysupgrade
@@ -57,6 +57,7 @@ export CONFFILES=/tmp/sysupgrade.conffiles
 export CONF_TAR=/tmp/sysupgrade.tgz
 export ETCBACKUP_DIR=/etc/backup
 export INSTALLED_PACKAGES=${ETCBACKUP_DIR}/installed_packages.txt
+export SERVICE_STATUS=${ETCBACKUP_DIR}/service_status.txt
 
 IMAGE="$1"
 
@@ -228,6 +229,7 @@ do_save_conffiles() {
 
 	if [ "$SAVE_INSTALLED_PKGS" -eq 1 ]; then
 		echo "${INSTALLED_PACKAGES}" >> "$CONFFILES"
+		echo "${SERVICE_STATUS}" >> "$CONFFILES"
 		mkdir -p "$ETCBACKUP_DIR"
 		# Avoid touching filesystem on each backup
 		RAMFS="$(mktemp -d -t sysupgrade.XXXXXX)"
@@ -245,6 +247,15 @@ do_save_conffiles() {
 			\( -exec test -f /overlay/upper/{} \; -exec echo {} overlay \; \) -o \
 			\( -exec echo {} unknown \; \) \
 			\) | sed -e 's,.*/,,;s/\.control /\t/' > ${INSTALLED_PACKAGES}
+
+		# Format: /etc/init.d/servicename {enable,disable}
+		rm -f ${SERVICE_STATUS}
+		for service in /etc/init.d/* ; do \
+			${service} enabled && \
+				echo >> ${SERVICE_STATUS} "$service" "enable" || \
+				echo >> ${SERVICE_STATUS} "$service" "disable" \
+			; \
+		done
 	fi
 
 	v "Saving config files..."
-- 
2.20.1