posted based on udemy video - Android OS Internals 😁

Android Build System

Build system Step 1. To execute the envsetup.sh

envsetup

> source build/envsetup.sh

• source : it is basically a built in shell command that reads and executes the file in the current shell.

you can change this,

> . build/envsetup.sh

• . : alias to source

💡 참고

> hmm

• hmm : The full list of available commands can be seen by running.

lunch

lunch : show you the lunch menu

• lunch command serves you with the build variants available for Aosp.

if you can see lunch menu,

> lunch

aosp_arm-eng : arm architecture CPU, eng - Engineering Build
aosp_arm64-eng
aosp_car_x86-userdebug : x86 the Intel
aosp_cf_x86_64_tv-userdebug : tv device (different types)
etc ....

여러가지 명령어 사용 방법 및 구현되어 있는 코드를 보고 싶다면,
envsetup.sh or definition.mk 파일을 보면 된다.