Build Aion kernel from source

Prerequisites

• Ubuntu 16.04 or later version
• Open JDK 11
• Apache Ant 1.10
• 8GB RAM
• CPU need to support SSE4.2

How to build

1. install pre-required package

sudo apt-get update
sudo apt-get install -y git g++ cmake wget llvm-4.0 lsb-release libjsoncpp1 libjsoncpp-dev libboost1.58-all-dev libzmq5 libstdc++6 libgcc1 libpgm-5.2-0

2. Clone the Aion project

git clone --recursive https://github.com/aionnetwork/aion 

3. Go into the folder

cd aion

4. Check your environment settings are correct, including the Ant execute path, java executes PATH link to the JDK11 folder, and the JAVA_HOME.

Set a link at /usr/lib/jvm/jdk-11.0.1

ln -s [your jdk install folder] /usr/lib/jvm/jdk-11.0.1

This is the example for the building environment settings in .profile under the home path. You can reload it by source ~/.profile

export JAVA_TOOL_OPTIONS=-Dfile.encoding=UTF8
export JAVA_HOME=/usr/lib/jvm/jdk-11.0.1
export ANT_HOME=$HOME/IDE/apache-ant-1.10.3
PATH="$ANT_HOME/bin:$JAVA_HOME/bin:$PATH"

Then you should be able to build

./gradlew build

5. Verify the code You can go through the test cases by:

./gradlew test -x aion_api:test

6. pack the code

./gradlew pack

check your pack folder

cd pack

You should see a file named like this

aion-v<KERNEL VERSION>.<GIT REVISION>-<BUILD DATE>.tar.bz2

eg. aion-v0.1.12.2c5119a-2018-02-28.tar.bz2

7. pack to a docker image

./gradlew packDocker

Build the fastVM and the solidity compiler native library from source code

If you want to build the project all from the source code. In step 4 of the How to build, you can use ant full_build to build all from source (It will take a while). make sure your Ubuntu is 16.04 release (if you want to build on top of the latest Ubuntu release, will require you to change the dependency of the build script in the aion_fastvm/script folder, the last Ubuntu release doesn't have the libboost1.58 package)

Execute your Aion network

Please check the section Aion Installation in the aion/README.md

For Developers

There is a wiki about the code convention. Please follow the rules when you do pull requests to this repo. Thanks