replicant-vendor_replicant/prebuilt/common/bin/50-cm.sh

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Modular backuptool.sh. Executes backup and restore methods defined in arbitrary /system/addon.d/*.sh scripts. Tips & Tricks ============= * 50-cm.sh contains only a reference implementation. You may customize the methods however you wish. For example, 20-foobar.sh pre-backup can use a loop with conditionals to generate a dynamic backup list in /tmp/foobar_file_list which is later printed by list_files() so the backup method will act on those files. * Optional methods pre-backup, post-backup, pre-restore, or post-restore may be defined for special purposes. * Inject new files into /tmp/addon.d/ prior to backuptool.sh backup if you want to act during the current CM upgrade. * Delete files from /tmp/addon.d/ during post-restore if you want to permanently remove files from /system/addon.d/ Addons may use this approach to run a script only once. * Scripts run in sort -n order. Prefix with numbers 00 through 99 if want to run in a particular order. * You can have two separate scripts, implementing only backup in one, and only restore in the other with a different number prefix of each. This allows even greater control the backup/restore order even further. * You could use pre-backup to generate a one-time use backup script in /tmp/addon.d/ that deletes itself in post-restore. Patch Series ============ http://review.cyanogenmod.com/#change,13265 CyanogenMod/android_build * edify generator http://review.cyanogenmod.com/#change,13266 CyanogenMod/android_system_core * permissions on /system/addon.d http://review.cyanogenmod.com/#change,13267 CyanogenMod/android_vendor_cm * 50-cm.sh reference backup script * modular backuptool.sh * support backuptool.functions used by /system/addon.d/*.sh scripts Change-Id: Ifd5eaf9dcfd68d92e5043c21d1bae1dc0ad54860
2012-03-04 08:37:42 +00:00
#!/sbin/sh
#
# /system/addon.d/50-cm.sh
# During a CM12.1 upgrade, this script backs up /system/etc/hosts,
Modular backuptool.sh. Executes backup and restore methods defined in arbitrary /system/addon.d/*.sh scripts. Tips & Tricks ============= * 50-cm.sh contains only a reference implementation. You may customize the methods however you wish. For example, 20-foobar.sh pre-backup can use a loop with conditionals to generate a dynamic backup list in /tmp/foobar_file_list which is later printed by list_files() so the backup method will act on those files. * Optional methods pre-backup, post-backup, pre-restore, or post-restore may be defined for special purposes. * Inject new files into /tmp/addon.d/ prior to backuptool.sh backup if you want to act during the current CM upgrade. * Delete files from /tmp/addon.d/ during post-restore if you want to permanently remove files from /system/addon.d/ Addons may use this approach to run a script only once. * Scripts run in sort -n order. Prefix with numbers 00 through 99 if want to run in a particular order. * You can have two separate scripts, implementing only backup in one, and only restore in the other with a different number prefix of each. This allows even greater control the backup/restore order even further. * You could use pre-backup to generate a one-time use backup script in /tmp/addon.d/ that deletes itself in post-restore. Patch Series ============ http://review.cyanogenmod.com/#change,13265 CyanogenMod/android_build * edify generator http://review.cyanogenmod.com/#change,13266 CyanogenMod/android_system_core * permissions on /system/addon.d http://review.cyanogenmod.com/#change,13267 CyanogenMod/android_vendor_cm * 50-cm.sh reference backup script * modular backuptool.sh * support backuptool.functions used by /system/addon.d/*.sh scripts Change-Id: Ifd5eaf9dcfd68d92e5043c21d1bae1dc0ad54860
2012-03-04 08:37:42 +00:00
# /system is formatted and reinstalled, then the file is restored.
#
. /tmp/backuptool.functions
list_files() {
cat <<EOF
etc/hosts
EOF
}
case "$1" in
backup)
list_files | while read FILE DUMMY; do
backup_file $S/"$FILE"
done
;;
restore)
list_files | while read FILE REPLACEMENT; do
R=""
[ -n "$REPLACEMENT" ] && R="$S/$REPLACEMENT"
[ -f "$C/$S/$FILE" ] && restore_file $S/"$FILE" "$R"
done
;;
pre-backup)
# Stub
;;
post-backup)
# Stub
;;
pre-restore)
# Stub
;;
post-restore)
# Stub
;;
esac