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DEVELOP.md

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Setting Up for Development

We're using hardhat as our main project management tool, with which we compile contracts, run unit tests, and perform deployments.

We're also using Slither from the Trail of Bits contract security toolkit for stronger static analysis.

Maybe we'll set up Echidna, too...

To run the entire compilation and testing environment, you'll need to set up all of these.

These instructions assume you already have standard installations of node, npm, and python3.

Basic Setup

Set up yarn and hardhat, so you can compile and run basic tests:

yarn install
yarn prepare
cp .env.example .env

Get Alchemy API keys and fill them into .env. (Team members can use the Reserve keys; ask another team member over Signal.)

All of yarn compile, yarn test, and yarn devchain do sensible things.

Setup Trail of Bits Tools

solc-select

The Trail of Bits tools require solc-select. Check these installation instructions to ensure you have all pre-requisites. Then install solc-select, and set the version to 0.8.4:

pip3 install solc-select
solc-select install 0.8.4
solc-select use 0.8.4

slither

Once solc-select is set up, install slither with:

pip3 install -U slither-analyzer  # -U for upgrade, in case you've installed an old version.

At this point, slither will be usable in your environment.

  • A reasonable slither check will happen if you run yarn slither.
  • Use slither's triage mode with yarn slither --triage.
  • For advanced usage and warning triage, deal with slither directly.

Mainnet Forking

The tests located in test/mainnet-forking will require the Mainnet Forking setup in place. This is done by setting the MAINNET_RPC_URL variable in your local .env. An Alchemy node is recommended for Mainnet Forking to properly work. Additional information can be found here.

For running scripts and tasks using Mainnet Forking a FORK environment variable can be defined. For example to run a local node using Mainnet forking you can run:

FORK=true npx hardhat node

To try out the Deployment scripts against local Mainnet Fork

  • Run in a separate terminal a local forking node following the instructions above.
FORK=true npx hardhat node
  • In a separate terminal you will need to run the following scripts:
  • Run the script which deploys the RSR and ForkSpell contracts. Make sure the previous RSR address is properly configured in common\configuration.ts with the Mainnet address.
npx hardhat run scripts/deployment/1_deploy_rsr_fork_spell.ts --network localhost

This will create a local 31337-tmp-deployments.json file with the corresponding addresses. Do not delete or modify this file as it wil be used for later scripts.

  • Run the script which deploys the SiphonSpell contract. Verification script #2 is not required for local development chains.
npx hardhat run scripts/deployment/3_deploy_siphon_spell.ts --network localhost

This will update the SiphonSpell address in the local 31337-tmp-deployments.json file which was previously generated.