Develop

Development is supported on linux systems. Virtual machines are run with qemu so kvm is recommended. Follow the installation guide to set up nix.

Development Shell

cardano.nix provides a devshell that includes various tools to build, test, run and update the project:

$ nix develop
...
❄️ Welcome to the cardano.nix devshell ❄️

[documentation]

  docs-build              - build documentation
  docs-serve              - serve documentation web page

[examples]

  vm-preview              - Start vm with cardano services on the preview network and ports forwarded to host

[general commands]

  menu                    - prints this menu

[tests]

  build-all               - build all packages and checks with `devour-flake`
  check                   - run `nix flake check`
  run-vm-test             - list and run virtual machine integration tests

[tools]

  fmt                     - format the source tree
  update-pre-commit-hooks - update git pre-commit hooks

A .envrc file is also provided, using direnv and nix-direnv is suggested.

Running Integration Tests

From the devshell you can run integration tests with run-vm-test, for example the following will start cardano-node and ogmios on the preview testnet and will check for synchronization progress.

run-vm-test ogmios