How to build your own TeamWin Recovery Project from source.

Updating Ubuntu repos and packages.

	sudo apt-get update
	sudo apt-get upgrade

Installing ADB & Fastboot tools.

	sudo apt-get install android-tools-adb android-tools-fastboot

Installing the required dependencies.

sudo apt-get install bc bison build-essential ccache curl flex g++-multilib gcc-multilib git gnupg gperf imagemagick lib32ncurses5-dev lib32readline-dev lib32z1-dev liblz4-tool libncurses5 libncurses5-dev libsdl1.2-dev libssl-dev libxml2 libxml2-utils lzop pngcrush rsync schedtool squashfs-tools xsltproc zip zlib1g-dev

Getting OpenJDK.

Get the right package for your Ubuntu version in here.

Installing repo.

	mkdir -p ~/bin
	echo export PATH=\$PATH:\$HOME/bin >> ~/.bashrc
	source ~/.bashrc
	curl https://storage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
	chmod a+rx ~/bin/repo

Getting TWRP Source Code.

Set the -b argument to twrp-11 for Android 11 or twrp-12.1 for Android 12

mkdir twrp && cd twrp
repo init --depth=1 -u git://github.com/minimal-manifest-twrp/platform_manifest_twrp_aosp.git -b twrp-11
repo sync

Setting up TWRP for building.

• Get the right stuff inside .repo/local_manifest/roomservice.xml

<manifest>
  <project path="device/<brand>/<device>" name="<repo-owner-name>/<repo-name>" remote="github" revision="<branch>"/>
</manifest>

• Here is an example of a roomservice.xml

<manifest>
  <project path="device/samsung/a31" name="Galaxy-MT6768/android_device_samsung_a31nsxx" remote="github" revision="android-11"/>
  <project path="device/samsung/a41" name="Galaxy-MT6768/android_device_samsung_a41xx" remote="github" revision="android-11"/>
</manifest>

Setting up device trees.

repo sync --force-sync device/<brand>/<device>

Building

For a device with recovery partition:

source build/envsetup.sh; lunch twrp_<device>-eng; mka recoveryimage

For a device with boot partition:

source build/envsetup.sh; lunch twrp_<device>-eng; mka bootimage