LG_Volt-LineageOS_14.1_Manifest

Manifest needed to help build LineageOS 14.1 for LG Volt

Files

README.md -- The self explanatory file you read now.
lg_volt-Stable.xml -- Manifest for building from the last known working build of LineageOS 14.1. Code is provided from their respective GitHub sources listed in the file.
lg_volt.xml -- Manifest for building from my source edits.

Notes for me to remember, should provide clues to how to build LOS.

Dependencies

Ubuntu 16.04

sudo apt-get update && sudo apt-get upgrade && sudo apt-get dist-upgrade && sudo apt-get install openjdk-8-jdk

sudo update-alternatives --config java

sudo apt-get install git-core gnupg flex bison gperf build-essential zip curl zlib1g-dev gcc-multilib g++-multilib libc6-dev-i386 lib32ncurses5-dev x11proto-core-dev libx11-dev lib32z-dev lib32z1-dev ccache libgl1-mesa-dev libxml2-utils xsltproc unzip python-networkx android-tools-adb android-tools-fastboot maven libcurl4-openssl-dev nss-updatedb schedtool bc libpcre16-3 libpcre3-dev libpcre32-3 libpcrecpp0v5 libc++-dev clang checkpolicy libwxgtk3.0-dev libc++abi-dev

This sets up correct udev rules in Ubuntu so the system can connect to Android devices via USB, ADB, Fastboot. Replace "username" with system username

$ wget -S -O - http://source.android.com/source/51-android.rules | sed "s/<username>/$USER/" | sudo tee >/dev/null /etc/udev/rules.d/51-android.rules; sudo udevadm control --reload-rules

Setup the "repo" binary. This helps download all the different repositories.

$ mkdir -p ~/bin
$ curl https://storage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
$ chmod a+x ~/bin/repo

Add the following to ~/.profile to ensure the above "repo" binary will always be accessible.

# set PATH so it includes user's private bin if it exists
if [ -d "$HOME/bin" ] ; then
    PATH="$HOME/bin:$PATH"
fi

Fetch the required LineageOS 14.1 source files. Make sure you replace the directory "cd" to the one you want to use for the source directory

$ cd ~/android/system/
$ repo init -u https://github.com/LineageOS/android.git -b cm-14.1

Now add the LG Volt manifest. Pick whether or not to use the stable manifest or not. Change directory to point to .repo folder of the source directory.

$ mkdir -p ~/android/.repo/local_manifests
$ wget -S https://raw.githubusercontent.com/ShapeShifter499/LG_Volt-LineageOS_Manifest/cm-14.1/lg_volt.xml -O ~/android /.repo/local_manifests/lg_volt.xml

Now grab all the source files! Run at the root of the source directory.

$ repo sync

Change some git variables so the build correctly identifies who you are, run the following at the root of source. (Optional)

$ git config --global user.name "Your Name"
$ git config --global user.email "Your Email"

Make sure the environment is setup

$ source build/envsetup.sh

Setup CCACHE to speed up things. Run from root of source.

$ export USE_CCACHE=1
$ mkdir .ccache
$ export CCACHE_DIR=.ccache
$ prebuilts/misc/linux-x86/ccache/ccache -M 50G

Make sure CCACHE will always be used. Put the following in your .bashrc (or equivalent)

export USE_CCACHE=1

Monitor CCACHE being used, run from root of source.

$ watch -n1 -d prebuilts/misc/linux-x86/ccache/ccache -s

Configure jack

Jack is the new Java compiler used from Lineage 14. It is known to run out of memory - a simple fix is to run this command:

$ export ANDROID_JACK_VM_ARGS="-Dfile.encoding=UTF-8 -XX:+TieredCompilation -Xmx4G"

Adding that command to your ~/.bashrc file will automatically configure Jack to allocate a sufficient amount of memory.

SuperSU Root

Home builders that want to bake su back into the ROM can use the command ‘export WITH_SU=true’ prior to building.

Make sure things are clean before build

$ mka clobber

Now build! Run commands at root of source.

$ lunch cm_x5-userdebug
$ mka bacon

To build just the boot.img

$ mka bootimage

ShapeShifter499 / LG_Volt-LineageOS_Manifest