lineage-18.1-20210309-HTML6405-n8000.zip

#!/sbin/sh # # Backup and restore addon /system files # export C=/tmp/backupdir export SYSDEV="$(readlink -nf "$2")" export SYSFS="$3" export V=18.1 # Scripts in /system/addon.d expect to find backuptool.functions in /tmp cp -f /tmp/install/bin/backuptool.functions /tmp # Preserve /system/addon.d in /tmp/addon.d preserve_addon_d() { if [ -d $S/addon.d/ ]; then mkdir -p /tmp/addon.d/ cp -a $S/addon.d/* /tmp/addon.d/ chmod 755 /tmp/addon.d/*.sh fi } # Restore /system/addon.d from /tmp/addon.d restore_addon_d() { if [ -d /tmp/addon.d/ ]; then mkdir -p $S/addon.d/ cp -a /tmp/addon.d/* $S/addon.d/ rm -rf /tmp/addon.d/ fi } # Proceed only if /system is the expected major and minor version check_prereq() { # If there is no build.prop file the partition is probably empty. if [ ! -r $S/build.prop ]; then echo "Backup/restore is not possible. Partition is probably empty" return 1 fi if ! grep -q "^ro.lineage.version=$V.*" $S/build.prop; then echo "Backup/restore is not possible. Incompatible ROM version: $V" return 2 fi return 0 } # Execute /system/addon.d/*.sh scripts with $1 parameter run_stage() { if [ -d /tmp/addon.d/ ]; then for script in $(find /tmp/addon.d/ -name '*.sh' |sort -n); do $script $1 done fi } determine_system_mount() { if grep -q -e"^$SYSDEV" /proc/mounts; then umount $(grep -e"^$SYSDEV" /proc/mounts | cut -d" " -f2) fi if [ -d /mnt/system ]; then SYSMOUNT="/mnt/system" elif [ -d /system_root ]; then SYSMOUNT="/system_root" else SYSMOUNT="/system" fi export S=$SYSMOUNT/system } mount_system() { mount -t $SYSFS $SYSDEV $SYSMOUNT -o rw,discard } unmount_system() { umount $SYSMOUNT } determine_system_mount case "$1" in backup) mount_system if check_prereq; then mkdir -p $C preserve_addon_d run_stage pre-backup run_stage backup run_stage post-backup fi unmount_system ;; restore) mount_system if check_prereq; then run_stage pre-restore run_stage restore run_stage post-restore restore_addon_d rm -rf $C sync fi unmount_system ;; *) echo "Usage: $0 {backup|restore}" exit 1 esac exit 0