Minimal Cairo 1.0 Template

Built with auditless/cairo-template

A minimal template for building smart contracts with Cairo 1.0 using the Quaireaux project defaults.

How it works

No submodules, forks or other heavy machinery
Uses the cairo-test-runner binary for running tests
Built as a Scarb package for reusability and uses Scarb dependencies for libraries
Has reproducible builds using GitHub Actions
Includes a standard Makefile for commonly used commands

Installing dependencies

Step 1: Install Cairo 1.0 (guide by Abdel)

If you are on an x86 Linux system and able to use the release binary, you can download Cairo here https://github.com/starkware-libs/cairo/releases.

For everyone, else, we recommend compiling Cairo from source like so:

# Install stable Rust
$ rustup override set stable && rustup update

# Clone the Cairo compiler in $HOME/Bin
$ cd ~/Bin && git clone git@github.com:starkware-libs/cairo.git && cd cairo

# Generate release binaries
$ cargo build --all --release

NOTE: Keeping Cairo up to date

Now that your Cairo compiler is in a cloned repository, all you will need to do is pull the latest changes and rebuild as follows:

$ cd ~/Bin/cairo && git fetch && git pull && cargo build --all --release

Step 2: Add Cairo 1.0 executables to your path

export PATH="$HOME/Bin/cairo/target/release:$PATH"

NOTE: If installing from a Linux binary, adapt the destination path accordingly.

This will make available several binaries. The one we use is called cairo-test.

Step 3: Install the Cairo package manager Scarb

Follow the installation guide in Scarb's Repository.

Step 4: Setup Language Server

VS Code Extension

Disable previous Cairo 0.x extension
Install the Cairo 1 extension for proper syntax highlighting and code navigation. Just follow the steps indicated here.

Cairo Language Server

From Step 1, the cairo-language-server binary should be built and executing this command will copy its path into your clipboard.

$ which cairo-language-server | pbcopy

Update the languageServerPath of the Cairo 1.0 extension by pasting the path.

How to use this template

First you will need to clone the repository or click the Use this template button at the top of the page to create a new repository based on the template.

Next, you will want to update the configuration files with the name of your project:

├── .cairo_project.toml
└── .Scarb.toml

Working with your project

The Cairo template currently supports building and testing contracts.

Build

Build the contracts.

$ make build

Test

Run the tests in src/test:

$ make test

Format

Format the Cairo source code (using Scarb):

$ make fmt

Sierra (advanced)

View the compiled Sierra output of your Cairo code:

$ make sierra

Thanks to

The Quaireaux team for coming up with this configuration and especially Abdel for helping me with Cairo 1.0 installation
Paul Berg and the foundry-template project which served as inspiration
Last but not least, the StarkWare team for building the first smart contract language that is a joy to use

Other templates

ArgentX template is built as a fork of the compiler
Eni's cairo1-template uses git submodules for installation
Shramee's Starklings use the cairo1 crates as libraries and builds its own framework

augustbleeds/cairoplay