A Simple Bash Script Which Flash GSI On Realme Devices It Working Fine With My Realme C3 Device For Now...

GSIxFlasher.sh

#!/bin/bash

# A Bash Script Which Is Used To Flash GSIS On Realme Devices, It Can Flash Gsi On Dynamic Partition Using Fastboot
# Summary About Working Under The Hood!!
# 1. Reboot Into Bootloader From Any State.
# EX :
# - Adb ( device or recovery mode both supported ...)
# - Fastboot ( If It Detect Fastbootd Mode, It Will Reboot Your Device Back Into Bootloader Mode To Avoide Damage ...)
# 2. Flash vbmeta Image To Disable Verification And Verity.
# 3. Reboot Into Fastbootd To Get Partition Stracture Of Dynamic Images And Erase System Image As Well As Purge Useless Images { Those Are Associated With Rui And No Need To Boot A GSI System Imge }
# 4. Rebbot Into Fastbootd Again To Sync Changes Then Flash GSI System Image As system.img 
# 5. Check Weather Boot.img Is Present If Exist Flash Boot.img Else Ask From User If He Forget About Boot.img And Wait For Response Weather It Can "Y/y" For "YES" or "N/n" For "No".
# 	If Response Is Yes It Will Again Find boot.img And Flash That If This Time Boot.img Still Missing it Directly Denied And Move Forword..
# 6. Reboot Into Bootloader To Delete Userdata As Well As Cache And Reboot Into Recovery To Format Data From Recovery To Ensure That 100% GSI Boot..
																					
																					
# 																					MADE WITH ❤️ BY FIRE7LY


# Root User Checkout...
if [[ $UID -ne 0 ]]; then 
	echo -e "\e[31mPlease Run This Script With Sudo...\e[0m"
 	exit 1	 
fi

# Initialise All Veriable ...
font_path="./.figlet-fonts"
tool="./bin"
# Fix Adb Issue on some devices Because repo adb tool is too way old...
get_working_sdk_tool () {

	echo -e "\e[32mChecking Adb Version ...\e[0m"

	adb_version=$(adb --version | grep version | awk '{print $5}')
		
	case $adb_version in

	1.0.4*)
		echo -e "INFO : Installed Adb Version $adb_version Good Enough ..."
		adb=$(which adb)
		fastboot=$(which fastboot)
		;;
	*)
		echo -e "INFO : Adb Version 1.0.41 Or Higher Needed But Version $adb_version Detected. \nIt May Cause To Fail 'fastboot reboot recovery' So, For Safty Switchd Adb & Fastboot From Tool"
		adb="$tool/adb"
		fastboot="$tool/fastboot"
		# Get Sdk From Git Repo If Not Present ...
		[ ! -d $tool ] && mkdir bin
		[ ! -f $adb ] && echo "Adb Not Present In Tool Downloading From Git Repo"  && wget -q https://github.com/Fire7ly/FUM/raw/main/tool/adb -O $adb && chmod 777 $adb
		[ ! -f $fastboot ] && echo "Fastboot Not Present In Tool Downloading From Git Repo" && wget -q https://github.com/Fire7ly/FUM/raw/main/tool/fastboot -O $fastboot && chmod 777 $fastboot
		;;
	esac


	$adb kill-server && $adb start-server

}


# Check Font Directory ...
get_font () {

	if [ -d ${font_path} ]; then
		[ -f ${font_path}/Bloody.flf ] && bloody="-f "Bloody" -d ${font_path}/"
	else
		[ ! -f ${font_path}/Bloody.flf ] && mkdir $font_path && wget -q https://github.com/xero/figlet-fonts/raw/master/Bloody.flf -O ${font_path}/Bloody.flf
	fi

	# Check If Packages Installed ... 
	if [ -f /usr/bin/lolcat ] && [ -f /usr/bin/lolcat ]; then
		echo "initializing ..." | lolcat
	else
		apt install lolcat -y figlet -y 2>/dev/null |grep "null" | cut -d '.' -f 1
		sudo ln -s $(which lolcat) /usr/bin/lolcat 
	fi

}


# Banner Stuff ...
banner () {

	echo "Installing requirements..." | lolcat -a -d 30
	figlet $bloody  -w $(tput cols) -c  GSIxFLASHER | lolcat
	COLUMNS=$(tput cols)
	d=" Todat Is : $(date +%Y-%m-%d)"
	title="By Fire7ly For Realme C3"
	printf "%*s\n" $(((${#title}+$COLUMNS)/2)) "$title" | lolcat
	printf "%*s\n" $(((${#d}+$COLUMNS)/2)) "$d"
	echo -e "\e[32mAll requirements done\e[0m"

}

get_state () {


	# Check Device State ...
	echo -e "\e[32mWaiting For Device Connection ...\e[0m"
	device=$($adb devices -l | cut -d ':' -f 4 | grep -e RMX -e rmx -e Realme -e realme | cut -d ' ' -f 1)
	state=$($adb devices | sed 's/List of devices attached//g' | grep -e recovery -e device | awk '{print $2}')

	if [ -z $device ]; then 
		echo -e "\e[31mAdb: Device is not present in adb mode ..\e[0m\e[32m\nChecking In fastboot Mode ...\e[0m"
		state=$(fastboot devices | awk '{print $2}')
	else
		echo Connected Device Name Is : $device
		echo Connection State Is : $state mode
	fi

	is_devie () {
		$adb  wait-for-device 1>&2>/dev/null
		echo -e "\e[32mAdb (device): Device Rebooted Successfully To Bootloader!\e[0m"
		$adb reboot bootloader 1>&2>/dev/null
		get_work
	}

	is_recovery () {

		$adb  wait-for-recovery 1>&2>/dev/null
		echo -e "\e[32mAdb (recovery): Device Rebooted Successfully To Bootloader!\e[0m"
		$adb reboot bootloader 1>&2>/dev/null
		get_work
	}

	get_fastboot () {
		userspace=$($fastboot getvar is-userspace 2>&1 | grep -e yes -e no | cut -d ' ' -f 2)
		if [[ $userspace == "yes" ]]; then
			$fastboot reboot bootloader
			echo -e "\e[32mFastbootd: Device Rebooted Successfully To Bootloader!\e[0m"
			get_work
		elif [[ $userspace == "no" ]]; then
			echo -e "\e[32mBootloader: Device Connecte Successfully!\e[0m"
			get_work
		else
			echo "Fuck hell ..."
		fi
	}

}

get_work () {

	$fastboot reboot fastboot
	echo -e "\e[32mDevice Rebooted Successfully To Fastbooted!\e[0m"
	$fastboot --disable-verification flash vbmeta vbmeta.img
	echo -e "\e[32mVbmeta Flashed Successfully!\e[0m"
	$fastboot erase system
	echo -e "\e[32mSystem Erased!\e[0m"

	# List Of Useless Partitons In Rui For Nuke Them...
	useless_partitons="my_product my_engineering my_company my_carrier my_region my_heytap my_stock my_preload my_manifest"

	# Loop To Delete Partition From $useless_partitons
	for partition in $useless_partitons; do
		$fastboot delete-logical-partition $partition
		echo -e "\e[32mDelete Useless Partition $partition!\e[0m"
	done

	$fastboot reboot fastboot
	echo -e "\e[32mDevice Successfully Rebooting Fastboot!\e[0m"
	$fastboot flash system system.img
	echo -e "\e[32mSystem Flashing SuccessFully!\e[0m"
		
if [ -f boot.img ]; then
		$fastboot flash boot boot.img
		echo -e "\e[32mBoot Flashing SuccessFully!\e[0m"
else
	while true; do
		read -p "Boot.img Is Not Present If You Missed That, Then Copy Boot.img (y/n) : " response
		if [[ $response =~ ^([yY][eE][sS]|[yY])$ ]]; then
			[ -f "boot.img" ] && $fastboot flash boot boot.img && echo -e "\e[32mBoot Flashing SuccessFully!\e[0m"
            break;
      	elif [[ $response =~ ^([nN][oO]|[Nn])$ ]]; then
			echo -e "\e[31mYou Choise No! \nFlashing Boot.img Aborted...\e[0m"
          	break;
      	else
			echo -e "\e[31mInvalid response\e[0m"
      	fi
    done
fi

	$fastboot reboot bootloader
	echo -e "\e[32mDevice Successfully Rebooted To Bootloader!\e[0m"
	$fastboot erase userdata
	echo -e "\e[32mErased Userdata Successfully!\e[0m"
	$fastboot reboot recovery
	echo -e "\e[32mRebooting To recovery Format & Reboot Your Device.\e[0m"

}

main () {

	get_font
	banner
	get_working_sdk_tool
	get_state

	if [[ $state = "device" ]]; then
    is_device
	elif [[ $state = "recovery" ]]; then
		is_recovery
	elif [[ $state = "fastboot" ]]; then
		get_fastboot
	else
		echo -e "You Are Sure It It Connected ...\nelse You Fucked Up\nYou Are Dumbass\nYou are Ghay"
	fi

}


main