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Feature/optimize multiuser bckrestore #1

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406dffa
backup.sh: handle pkg only existing in other user
myroad94 Dec 6, 2020
214c207
backup.sh: new accounts_Xe.db + tar for permission
myroad94 Dec 6, 2020
d1948fb
restore.sh: do not restore pkg depending on user
myroad94 Dec 6, 2020
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33 changes: 23 additions & 10 deletions backup.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -6,9 +6,9 @@ set -e

uid=$1
shift
pkg=$1
pkgarg=$1

if [ -z "$uid" -o -z "$pkg" ]; then
if [ -z "$uid" -o -z "$pkgarg" ]; then
echo "Usage $0 <uid> <pkg>"
exit 0
fi
Expand All @@ -22,11 +22,6 @@ pkgs="$*"
uids="$uid"
alluids=0

# Backup all installed packages?
if [ "$pkg" = "all" ]; then
pkgs="$(pm list packages | cut -f2 -d':')"
fi

if [ "$uid" = "all" ]; then
alluids=1
uids="$(pm list users | grep 'UserInfo' | cut -f1 -d':' | cut -f2 -d'{')"
Expand All @@ -35,6 +30,12 @@ fi
for uid in $uids; do
echo "Creating backup for uid $uid.."
mkdir -p $base/data/$uid

# Backup all installed packages?
if [ "$pkgarg" = "all" ]; then
pkgs="$(pm list packages --user "$uid" | cut -f2 -d':')"
fi

for pkg in $pkgs; do
if [ -f /data/app/$pkg-*/base.apk ]; then
echo " Backing up pkg $pkg.."
Expand Down Expand Up @@ -64,15 +65,27 @@ for uid in $uids; do
fi
done
echo "done."
# This is for old Android.
if [ -f "/data/system/users/$uid/accounts.db" ]; then
echo "Creating backup of accounts.db .."
cp /data/system/users/$uid/accounts.db $base/data/$uid/
tar -cf "$base/data/$uid/accounts.db.tar" "/data/system/users/$uid/accounts.db"
echo "done."
fi
# Newer Android (like Android 9).
if [ -f "/data/system_ce/$uid/accounts_ce.db" ]; then
echo "Creating backup of accounts_ce.db .."
tar -cf "$base/data/$uid/accounts_ce.db.tar" "/data/system_ce/$uid/accounts_ce.db"
echo "done."
fi
if [ -f "/data/system_de/$uid/accounts_de.db" ]; then
echo "Creating backup of accounts_de.db .."
tar -cf "$base/data/$uid/accounts_de.db.tar" "/data/system_de/$uid/accounts_de.db"
echo "done."
fi
done
if [ -f "/data/system/sync/accounts.xml" ]; then
echo "Creating backup of accounts.xml .."
cp /data/system/sync/accounts.xml $base/data/
echo "Creating backup of accounts.xml ..."
tar -cf "$base/data/accounts.xml.tar" "/data/system/sync/accounts.xml"
echo "done."
fi

Expand Down
5 changes: 5 additions & 0 deletions restore.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,11 @@ for uid in $uids; do
echo "Restoring backup for uid $uid.."
for pkg in $pkgs; do
[ -z "$pkg" ] && ( echo "Missing pkg"; exit 1)
# Testing if for this user, data existed, or if app was installed but disabled.
if ( [ ! -f "$base/data/$uid/$pkg-user.tar" ] ) && ( [ ! -f "$base/data/$uid/$pkg.disabled" ] ) ; then
# The app didn't exist for the user (neither in enabled nor disabled form). Stop the current iteration and proceed to the next pkg.
continue 1
fi
echo " Restoring pkg $pkg.."
if [ -f "$base/apks/$pkg.apk" ]; then
if [ -z "$(pm list package $pkg)" ]; then
Expand Down