Building from source - Besu - LF Decentralized Trust


    
        
            
                
                                

        


        
            

            






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Building from source












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Building from source

	Felipe Faraggi



	Sally MacFarlane



	Byron Gravenorst



	+4


Owned by Felipe Faraggi


Last updated: Oct 03, 2024 by Sally MacFarlane
2 min read












Prerequisites 
	Java 21 (NEW since https://github.com/hyperledger/besu/pull/7177)
	note that gradle 8.7 is incompatible with Java 22, you need Java 21

	eg if installing java via homebrew,
	brew install openjdk@21





	For Mac installations: MacOS High Sierra 10.13 or later

	For Windows: Besu is currently supported only on 64-bit versions of Windows, and requires a 64-bit version of JDK/JRE. We recommend that you also remove any 32-bit JDK/JRE installations.


Checkout source code
git clone --recursive git@github.com:hyperledger/besu.git

or
git clone --recursive https://github.com/hyperledger/besu


Create a fork
If you're going to do development, to submit a PR you'll need to push a branch to your fork and create the PR from that (you can't push a branch to the main repo).
git clone --recursive git@github.com:hyperledger/besu.git 
# this will check out a working copy of the main besu repo, in a directory called besu 
cd besu 
git remote -v 
# this will show you have origin remote pointing to the main besu repo 
# also create a fork in the github UI - so that will end up at github.com/your-github-user/besu 
git remote rename origin upstream 
git remote add origin git@github.com:your-github-user/besu.git
# git push will push to origin by default, which is now your fork of besu
See what tasks are available 
To see all of the gradle tasks that are available:
cd besu
./gradlew tasks  
Build from source
Build the distribution binaries: 
cd besu
./gradlew installDist
Run from the binaries you built from source
To see help menu:
cd build/install/besu
./bin/besu --help
Run Besu with default options (by default this stores all persistent data in build/install/besu):
cd build/install/besu
./bin/besu 
To set custom CLI options:
cd build/install/besu
./bin/besu --discovery-enabled=false --data-path=/tmp/besutmp
Building and Running on Windows
Note: On Windows, to run gradlew, you must have the JAVA_HOME system variable set to the Java installation directory. For example: 
JAVA_HOME = C:\Program Files\Java\jdk21.0_181
Note: If you are using WSL (Windows Subsystem for Linux) with Ubuntu to build and run Besu using DNS discovery, you might need to change the default DNS provided by Windows. See issue https://github.com/hyperledger/besu/issues/3046 for more detail.
Running tests
Dependencies
There are two dependencies required if you want to run the tests: libsodium version 1.0.16 or higher and libnss version 3.35 or higher.
If you are not planning on running the tests, you can skip this step.
To install the dependencies type in the following commands on MacOS or Ubuntu.
MacOS:
$ brew install libsodium nss

Ubuntu (16.04 LTS):
$ apt install libsodium18 libnss3

Ubuntu (18.04 LTS):
$ apt install libsodium23 libnss3

Ubuntu (20.04 LTS):
$ apt install libsodium23 libnss3

Ubuntu (14.04 LTS):
For libsodium you can find the appropriate package (v1.0.16-0) files here:
https://launchpad.net/ubuntu/+source/libsodium
https://launchpad.net/~phoerious/+archive/ubuntu/keepassxc/+sourcepub/8814980/+listing-archive-extra



For libnss you can find the appropriate package (v3.35) files here:
https://packages.ubuntu.com/bionic/libnss3

The `sudo` command might be needed on Linux, and if the screen prompts you to enter a password, type your password and press enter.
cd besu
./gradlew build 
./gradlew integrationTest LTS
 








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