[Galaxy S II Themes and Apps] Troubadour666:
Hi,

i flash many roms and sometimes after new rom flashed , i see dpi preserved my change before flash, even some rom preserve xposed framework still activated...maybe you have experience with some other backup/restore /system files during flash, maybe have you another idea to preserve some stuff.

For my part, i make a new backuptool.sh and backuptool.functions scripts compiled with some i find over roms i tried....

We have:

save dpi

save xposed framework

save addond

i think in red are the line you can personalize, i hope you know what to do with.

backuptool.sh

#!/sbin/sh
#
# Backup and restore addon /system files
#

export C=/tmp/backup
export S=/system
[COLOR="Red"]export V=what you want[/COLOR]

persist_props="ro.sf.lcd_density"
sysroot="/system"
saveroot="/tmp/save"

# Preserve DPI
save_props()
{
rm -f "$saveroot/prop"
for prop in $persist_props; do
echo "save_props: $prop"
grep "^$prop=" "$sysroot/build.prop" >> "$saveroot/prop"
done
}

# Restore DPI
restore_props()
{
local sedargs

sedargs="-i"
for prop in $(cat $saveroot/prop); do
echo "restore_props: $prop"
k=$(echo $prop | cut -d'=' -f1)
sedargs="$sedargs s/^$k=.*/$prop/"
done
sed $sedargs "$sysroot/build.prop"
}

# Backup Xposed Framework (bin/app_process)
xposed_backup()
{
if [ -f /system/bin/app_process.orig ]
then
cp /system/bin/app_process /tmp/backup/
fi
}

# Restore Xposed Framework (bin/app_process)
xposed_restore()
{
if [ -f /tmp/backup/app_process ]
then
mv /system/bin/app_process /system/bin/app_process.orig
cp /tmp/backup/app_process /system/bin/
fi
}

# Preserve /system/addon.d in /tmp/addon.d
preserve_addon_d() {
mkdir -p /tmp/addon.d/
cp -a /system/addon.d/* /tmp/addon.d/
chmod 755 /tmp/addon.d/*.sh
}

# Restore /system/addon.d in /tmp/addon.d
restore_addon_d() {
cp -a /tmp/addon.d/* /system/addon.d/
rm -rf /tmp/addon.d/
}

[COLOR="Red"]# Proceed only if /system is the expected major and minor version
check_prereq() {
if ( ! grep -q "^ro.cm.version=$V.*" /system/build.prop ); then
echo "Not backing up files from incompatible version: $V"
return 0
fi
return 1
}[/COLOR]

check_blacklist() {
if [ -f /system/addon.d/blacklist ];then
## Discard any known bad backup scripts
cd /$1/addon.d/
for f in *sh; do
s=$(md5sum $f | awk {'print $1'})
grep -q $s /system/addon.d/blacklist && rm -f $f
done
fi
}

check_whitelist() {
found=0
if [ -f /system/addon.d/whitelist ];then
## forcefully keep any version-independent stuff
cd /$1/addon.d/
for f in *sh; do
s=$(md5sum $f | awk {'print $1'})
grep -q $s /system/addon.d/whitelist
if [ $? -eq 0 ]; then
found=1
else
rm -f $f
fi
done
fi
return $found
}

mkdir -p $saveroot

# Execute /system/addon.d/*.sh scripts with $1 parameter
run_stage() {
for script in $(find /tmp/addon.d/ -name '*.sh' |sort -n); do
$script $1
done
}

case "$1" in
backup)
save_props
mkdir -p $C
[COLOR="Red"]# if check_prereq; then[/COLOR]
if check_whitelist system; then
exit 127
fi
[COLOR="Red"]# fi[/COLOR]
check_blacklist system
xposed_backup
preserve_addon_d
run_stage pre-backup
run_stage backup
run_stage post-backup
;;
restore)
restore_props
[COLOR="Red"]# if check_prereq; then[/COLOR]
if check_whitelist tmp; then
exit 127
fi
[COLOR="Red"]# fi[/COLOR]
check_blacklist tmp
xposed_restore
run_stage pre-restore
run_stage restore
run_stage post-restore
restore_addon_d
rm -rf $C
rm -rf /data/data/android.pacstats
sync
;;
*)
echo "Usage: $0 {backup|restore}"
exit 1
esac

exit 0

backuptool.functions

#!/sbin/sh
#
# Functions for backuptool.sh
#

export C=/tmp/backup
export S=/system
export V=what you want

backup_file() {
if [ -e "$1" ]; then
local F=`basename "$1"`
local D=`dirname "$1"`
# dont backup any apps that have odex files, they are useless
if ( echo "$F" | grep -q "\.apk$" ) && [ -e `echo "$1" | sed -e 's/\.apk$/\.odex/'` ]; then
echo "Skipping odexed apk $1";
else
mkdir -p "$C/$D"
cp -p $1 "$C/$D/$F"
fi
fi
}

restore_file() {
local FILE=`basename "$1"`
local DIR=`dirname "$1"`
if [ -e "$C/$DIR/$FILE" ]; then
if [ ! -d "$DIR" ]; then
mkdir -p "$DIR";
fi
cp -p "$C/$DIR/$FILE" "$1";
if [ -n "$2" ]; then
echo "Deleting obsolete file $2"
rm "$2";
fi
fi
}

the files in attachments. just remove ".txt' at end to use them as well.

thanks.