Contract Builder

Builds contracts in the simplest way possible.

Allows for cross environment compilation by utilizing Docker in the background.

Program Requirements

• Docker must be installed

Repository Requirements

• Node 16+

Installation

As CLI Tool

npm i -g @ultraos/contract-builder

As Library

npm i @ultraos/contract-builder

As Binary

Download the files from the official repository.

Build

As Binary Release

Releases will be output to the releases folder if built successfully.

npm run build:releases

As Library

npm run build

Library Usage

import { build } from 'ultraos/contract-builder';

async function doSomething() {
    // The folder /my-contract contains .cpp files for eosio based smart contracts
    const didTryBuilding = await build('./my-contract');
}

doSomething();

CLI Usage

To build a contract simply drag and drop a folder with source code onto the binary. The tool will start a docker image and places build artifacts (wasm and abi files) along with the source files. Another way of using the tool is through command line:

contract-builder ./test/example-contract
Warning, empty ricardian clause file
Warning, empty ricardian clause file
Warning, action <hi> does not have a ricardian contract
Program will stop container in 5 seconds...

One can also pass build flags for the compiler with -b option:

$ contract-builder -i ./test/example-contract -b "-DTEST=true"

For a more complex projects you might want to use a build system like CMake. The tool supports it and looks for CMakeLists.txt in the root of the repo. If found it will use cmake to build the project.

$ contract-builder -i ./test/example-cmake-contract
-- Setting up Eosio Wasm Toolchain 1.7.0 at /usr
-- Configuring done
-- Generating done
-- Build files have been written to: /opt/buildable/build
[100%] Built target eosio.token