New Updated `update-binary` for PBRP, only for MediaTek Devices

update-binary-mtk

#!/sbin/sh
# Copyright (C) 2018 ATG Droid 
# Copyright (C) 2019 PitchBlack Recovery <pitchblackrecovery@gmail.com>
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# ---------------------- #
###      Functions      ##
# ---------------------- #
OUTFD=/proc/self/fd/"$2"
ZIP="$3"
DIR=$(dirname "$ZIP")

ui_print() {
    until [ ! "$1" ]; do
        echo "ui_print $1\nui_print" > "$OUTFD"
        shift
    done
}

show_progress() {
    echo "progress $1 $2" > /proc/self/fd/"$2"
}

set_perm_recursive() {
	dirs=$(echo "$*" | awk '{ print substr($0, index($0,$5)) }')
	for i in $dirs; do
		chown -R "$1"."$2" "$i"; chown -R "$1":"$2" "$i"
		find "$i" -type d -exec chmod "$3" {} +
		find "$i" -type f -exec chmod "$4" {} +
	done
}

file_getprop() {
    grep "^$2" "$1" | cut -d= -f2
}

getprop() { 
    ( [ -e "/sbin/getprop" ] && "/sbin/getprop" "$1" ) || file_getprop /default.prop "$1"
}

delete() {
    rm -f "$@"
}

delete_recursive() {
    rm -rf "$@"
}

abort() {
    ui_print "$@"; exit 1
}

# ---------------------- #
###   Initialization   ###
# ---------------------- #
[ -d "/tmp/pb" ] && rm -rf "/tmp/pb"

mkdir -p /tmp/pb
cd /tmp/pb

unzip -o "$ZIP"

show_progress 0.1000000, 0
ui_print "|---------------------------------------------|"
ui_print "|~~~~~~~                               ~~~~~~~|"
ui_print "|=>>--    PitchBlack Recovery Project    --<<=|"
ui_print "|===>>>>-----        v2.9.0       -----<<<<===|"
ui_print "|                                             |"
ui_print "|^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^|"
ui_print "|===>>>>---    Brought To You By    ---<<<<===|"
ui_print "|       -------------------------------       |"
ui_print "|~~~~~~~~~~     PitchBlack Team     ~~~~~~~~~~|"
ui_print "|        -----------------------------        |"
ui_print "|            Based on TWRP v3.3.1-x           |"
ui_print "|=============================================|"

# Unmount System first, if mounted
/sbin/umount /system || echo ""
# Remount System as read-write
/sbin/mount -o remount,rw /system

PB=/tmp/pb/PBRP
IMG=/tmp/pb/TWRP/recovery.img
ETC=/system/etc/install-recovery.sh
PB1_PATH=/sdcard/PBTWRP
PB2_PATH=/sdcard/PBRP/tools
PB3_PATH=/sdcard/PBRP/themes
UI=/sdcard/PBRP/theme/ui.zip
RES=/sdcard/PBRP/.twrps
OLD=/sdcard/TWRP/PBRP

# Copy awk binary only if recovery doesn't have it
[ ! -f "/sbin/awk" ] && ( cp "META-INF/awk" "/sbin/awk" && chmod 0755 "/sbin/awk" )

# Default MTK Recovery SymLink for TWRP v3.x
RECOVERY="/dev/block/platform/*/*/by-name/recovery"

# Set DD initial to true
DD=true

recovery_partition() {
    chk_syml() {
        RECOVERY=$(readlink -f "$RECOVERY")
        if [ -f "$RECOVERY" ]; then
            DD=false
        elif [ -b "$RECOVERY" ]; then
            case "$RECOVERY" in
		        /dev/block/mtd*|/dev/block/mmc*)
		        	DD=true ;;
		        *)
		        	DD=false ;;
            esac
        else
            abort "Failed to get RECOVERY DD format"
        fi
    }
    
    # if we already have recovery block set then verify and use it
	[ "$RECOVERY" ] && chk_syml && return

    # otherwise, time to go hunting!
	if [ -f /etc/recovery.fstab ]; then
		# recovery fstab v1
		RECOVERY=$(awk '$1 == "/recovery" {print $3}' /etc/recovery.fstab)
		[ "$RECOVERY" ] && chk_syml && return
		# recovery fstab v2
		RECOVERY=$(awk '$2 == "/recovery" {print $1}' /etc/recovery.fstab)
		[ "$RECOVERY" ] && chk_syml && return
	fi
	for fstab in /fstab.*; do
		[ -f "$fstab" ] || continue
		# device fstab v2
		RECOVERY=$(awk '$2 == "/recovery" {print $1}' "$fstab")
		[ "$RECOVERY" ] && chk_syml && return
		# device fstab v1
		RECOVERY=$(awk '$1 == "/recovery" {print $3}' "$fstab")
		[ "$RECOVERY" ] && chk_syml && return
	done
	if [ -f /proc/emmc ]; then
		# emmc layout
		RECOVERY=$(awk '$4 == "\"recovery\"" {print $1}' /proc/emmc)
		[ "$RECOVERY" ] && RECOVERY=/dev/block/$(echo "$RECOVERY" | cut -f1 -d:) && chk_syml && return
	fi
	if [ -f /proc/mtd ]; then
		# mtd layout
		RECOVERY=$(awk '$4 == "\"recovery\"" {print $1}' /proc/mtd)
		[ "$RECOVERY" ] && RECOVERY=/dev/block/$(echo "$RECOVERY" | cut -f1 -d:) && chk_syml && return
	fi
	if [ -f /proc/dumchar_info ]; then
		# mtk layout
		RECOVERY=$(awk '$1 == "/recovery" {print $5}' /proc/dumchar_info)
		[ "$RECOVERY" ] && chk_syml && return
	fi
    # If anything does not work!
    abort "Failed to Find RECOVERY Partition"
}

# Deletion
delete "$ETC" "$UI"
delete_recursive "$PB1_PATH" "$PB2_PATH" "$PB3_PATH" "$RES" "$OLD"

#Flashing
if [ "$DD" = "true" ]; then
	dd if="$IMG" of="$RECOVERY"
elif [ "$DD" = "false" ]; then
	flash_image "$RECOVERY" "$IMG"
else
	abort "Failed to write recovery image!"
fi

#Copy Specific Files
[ ! -d "/sdcard/PBRP" ] && mkdir -p /sdcard/PBRP
cp -r $PB/tools $PB/themes /sdcard/PBRP/

#Copy Backup from TWRP
if [ -d "/sdcard/TWRP/BACKUPS" ]; then
	ui_print "Previous TWRP Backup found"
	if [ -d "/sdcard/PBRP/BACKUPS" ]; then
		cp -r /sdcard/TWRP/BACKUPS/* /sdcard/PBRP/BACKUPS/
	else 
		cp -r /sdcard/TWRP/BACKUPS /sdcard/PBRP/
	fi
    delete_recursive /sdcard/TWRP
fi

ui_print "|                                             |"
ui_print "|---------------------------------------------|"
ui_print "|---------------------------------------------|"
ui_print "|                                             |"
ui_print "|==>>>----         Thank You         ----<<<==|"
ui_print "|              -----------------              |"
ui_print "|     Rebooting into PitchBlack Recovery      |"
ui_print "|~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~|"
sleep 5s
show_progress 0.1000000, 90
ui_print "|------------Installation finished!-----------|"
/sbin/umount /system
reboot recovery