LineageOS 12.1 (CM12.1)

To get started with Android/LineageOS, you'll need to get familiar with Git and Repo.

Set up build environment

On the LineageOS Wiki, you will find additional useful information. (Just pick any device to find build instructions, but consider the device-specific statements not applicable). To build LineageOS 12.1, you need OpenJDK 1.7, which however is not part of the standard package repositories in a modern Linux distribution. See the Ask Ubuntu question How do I install openjdk 7 on Ubuntu 16.04 or higher?. Skip the "PPA" suggestion even if it is the most upvoted and implement one of the next options.

How to initially set up your build tree:

repo init -u https://github.com/cm12-amami/android.git -b cm-12.1 --groups=all,-notdefault,-darwin,-x86,-mips
cd .repo
git clone https://github.com/cm12-amami/local_manifests 
cd local_manifests 
git checkout cm-12.1 
cd ../.. 
repo sync --no-tags

Note: If you use a MAC to build, omit the -darwin in above repo init statement.

How launch a cm-12.1 build:

make clean  
repo sync --no-tags 
source build/envsetup.sh  
brunch amami

How to contribute

Contributions (i.e. pull requests) are always welcome.

We have an own Thread on XDA
You can also raise an issue on our Issues page

Short on disk space and/or download bandwidth?

If you only want to build yourself from source and you don't want to really develop, analyze commit history and don't want to push commits to other repositories, you can drastically reduce the amount of downloaded data by modifying the above as follows (note: NOT recommended if you want to do anything more than just bulding 'as is'):