@uma/scripts

Core peripheral scripts

This folder contains scripts that either fetch or modify state from the core UMA contracts.

Before you start

Before starting, you will need to install dependencies and build the entire repository. You can do this by running the following command from the top level directory protocol/:

yarn && yarn build

If you run into any problems with the examples below, the first thing you should do is try clearing the local build artifacts and packages and reinstalling by running the following commands from the top level directory protocol/:

yarn clean-packages && rm -rf packages/core/artifacts packages/core/cache && yarn && yarn build

Mainnet fork

The caller might find it useful to run these scripts against a local (hardhat) Mainnet fork in order to test that the contract state is modified as expected. The local node should be set to run on port 9545.

Scripts can then be run as node scripts connected to the local node by passing in the --network mainnet-fork flag.

After the developer has tested against the local Mainnet fork, they can use the same script connected to a public network. Usually this would involve passing a network name like mainnet_mnemonic or mainnet_gckms to the --network flag to the script and other supporting flags like --keys.

How to run

All scripts are designed to be framework-agnostic (i.e. not wed to hardhat or truffle) and run as node scripts.

For testing locally against a mainnet fork, we first might need to impersonate accounts on the local fork. We can do so via the helper script ./setupFork.sh. setupFork.sh should also run other fork node pre-test setup.

Test scripts can be run by passing in the --network mainnet-fork flag.

For running scripts in production, simply point the --network flag to a public network like mainnet_gckms like so: node ... --network mainnet_gckms --keys deployer.

Example: starting a local fork of Ethereum Mainnet and impersonating accounts

1. Open a terminal window and start a mainnet fork node locally:

yarn hardhat node --fork https://mainnet.infura.io/v3/YOUR-INFURA-KEY --no-deploy --port 9545

2. Request to impersonate accounts we'll need to propose and vote on admin proposals:

./packages/scripts/setupFork.sh

3. Run your script against the local mainnet fork

node YOUR_FILE.js --network mainnet-fork

Testing the Voter Dapp

Start a local hardhat node:

yarn hardhat node --no-deploy --port 9545

Run the base contract deployment:

yarn hardhat deploy --network localhost

Run the fixture script to set up the contracts:

HARDHAT_NETWORK=localhost ./src/utils/Deploy.js

To request a typical price (that you can vote on in the dapp):

HARDHAT_NETWORK=localhost ./src/local/RequestOraclePrice.js --identifier SOME_ID --time 1636667039

To trigger a sample governance vote (that you can vote on in the dapp):

HARDHAT_NETWORK=localhost ./src/mainnet/ProposeAdmin.js --prod

To move to the next phase of voting:

HARDHAT_NETWORK=localhost ./src/local/AdvanceToNextVotingPhase.js