Magisk/scripts/flash_script.sh
topjohnwu ec8fffe61c Merge Magisk install zip into Magisk Manager
Distribute Magisk directly with Magisk Manager APK. The APK will
contain all required binaries and scripts for installation and
uninstallation. App versions will now align with Magisk releases.

Extra effort is spent to make the APK itself also a flashable zip that
can be used in custom recoveries, so those still prefer to install
Magisk with recoveries will not be affected with this change.

As a bonus, this makes the whole installation and uninstallation
process 100% offline. The existing Magisk Manager was not really
functional without an Internet connection, as the installation process
was highly tied to zips hosted on the server.

An additional bonus: since all binaries are now shipped as "native
libraries" of the APK, we can finally bump the target SDK version
higher than 28. The target SDK version was stuck at 28 for a long time
because newer SELinux restricts running executables from internal
storage. More details can be found here: https://github.com/termux/termux-app/issues/1072
The target SDK bump will be addressed in a future commit.

Co-authored with @vvb2060
2021-01-22 02:29:54 -08:00

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#MAGISK
############################################
# Magisk Flash Script (updater-script)
############################################
##############
# Preparation
##############
# Default permissions
umask 022
OUTFD=$2
APK="$3"
COMMONDIR=$INSTALLER/assets
CHROMEDIR=$INSTALLER/assets/chromeos
if [ ! -f $COMMONDIR/util_functions.sh ]; then
echo "! Unable to extract zip file!"
exit 1
fi
# Load utility functions
. $COMMONDIR/util_functions.sh
setup_flashable
############
# Detection
############
if echo $MAGISK_VER | grep -q '\.'; then
PRETTY_VER=$MAGISK_VER
else
PRETTY_VER="$MAGISK_VER($MAGISK_VER_CODE)"
fi
print_title "Magisk $PRETTY_VER Installer"
is_mounted /data || mount /data || is_mounted /cache || mount /cache
mount_partitions
check_data
get_flags
find_boot_image
[ -z $BOOTIMAGE ] && abort "! Unable to detect target image"
ui_print "- Target image: $BOOTIMAGE"
# Detect version and architecture
api_level_arch_detect
[ $API -lt 17 ] && abort "! Magisk only support Android 4.2 and above"
ui_print "- Device platform: $ARCH"
BINDIR=$INSTALLER/lib/$ARCH32
[ ! -d "$BINDIR" ] && BINDIR=$INSTALLER/lib/armeabi-v7a
cd $BINDIR
for file in lib*.so; do mv "$file" "${file:3:${#file}-6}"; done
cd /
chmod -R 755 $CHROMEDIR $BINDIR
# Check if system root is installed and remove
$BOOTMODE || remove_system_su
##############
# Environment
##############
ui_print "- Constructing environment"
# Copy required files
rm -rf $MAGISKBIN/* 2>/dev/null
mkdir -p $MAGISKBIN 2>/dev/null
cp -af $BINDIR/. $COMMONDIR/. $BBBIN $MAGISKBIN
chmod -R 755 $MAGISKBIN
# addon.d
if [ -d /system/addon.d ]; then
ui_print "- Adding addon.d survival script"
blockdev --setrw /dev/block/mapper/system$SLOT 2>/dev/null
mount -o rw,remount /system || mount -o rw,remount /
ADDOND=/system/addon.d/99-magisk.sh
cp -af $COMMONDIR/addon.d.sh $ADDOND
chmod 755 $ADDOND
fi
##################
# Image Patching
##################
install_magisk
# Cleanups
$BOOTMODE || recovery_cleanup
rm -rf $TMPDIR
ui_print "- Done"
exit 0