explaingit

lineageos/android

★ 4,500Audience · developerComplexity · 5/5LicenseSetup · hard

TLDR

The source manifest for LineageOS, a free and open-source Android distribution. Use it with the repo tool to download the full source code and compile a build for a specific device.

Mindmap

mindmap
  root((LineageOS Android))
    What It Is
      Open source Android
      Community maintained
      Device specific builds
    Getting Source
      repo tool
      Manifest init
      Full source sync
    Building
      Device wiki guide
      Device drivers
      Flash to device
    Contributing
      Patches welcome
      Gerrit code review
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Code map

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Things people build with this

USE CASE 1

Compile a custom LineageOS build for a specific phone or tablet model

USE CASE 2

Contribute patches to LineageOS by submitting changes through the Gerrit code review process

USE CASE 3

Study how Android is assembled from its component repositories at the source level

Tech stack

AndroidJavaC++repo

Getting it running

Difficulty · hard Time to first run · 1day+

Requires 100GB+ disk, a Linux build environment, and hours of compile time, device-specific instructions are on the LineageOS wiki.

Open source under the Apache License 2.0, the standard license for Android and AOSP code.

In plain English

LineageOS is a free, open-source version of Android, the operating system used on most smartphones and tablets that are not iPhones. This repository is the manifest that connects all the individual code repositories that together make up a complete LineageOS build. It is the starting point for anyone who wants to compile LineageOS from source for a specific device. The README explains that to set up a local copy of the full source, you use a command-line tool called "repo" that reads this manifest and downloads all the component pieces. The main commands are shown directly: one to initialize a local environment pointing at this manifest repository and branch, and one to synchronize and actually download the source. The example branch shown is "lineage-23.2," which corresponds to a specific LineageOS release. Full build instructions for a particular device are on the LineageOS wiki. Contributing patches is described as welcome, with the process for submitting changes explained in the README. Beyond those basics, the README is minimal, serving mainly as a pointer to the wiki and to the standard Android source control tools. If you are looking to build LineageOS for a specific phone or tablet, you would follow these setup commands and then go to the LineageOS wiki for device-specific steps: which drivers to include, how to configure the build for your hardware, and how to flash the result onto the device. This is not user-facing software you run on your laptop. It is the build manifest for compiling an entire mobile operating system. That process requires significant disk space, a Linux build environment, and several hours of compilation time even after all the tools are in place.

Copy-paste prompts

Prompt 1
I want to build LineageOS for my device. Walk me through installing the repo tool, initializing from this manifest, and syncing the full source.
Prompt 2
How do I submit a bug fix to LineageOS? What is the patch submission process and how does code review work?
Prompt 3
After syncing the LineageOS source, what device-specific steps do I follow on the wiki to produce a flashable zip for my phone?
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