Truffle migrate ERC820Registry

Question

I use Truffle and Ganache and I want to test some contracts that use the ERC820 Registry. I'm new to Truffle (and JavaScript in general) and I'm struggling to follow the instructions described in EIP-820 to get the registry deployed.

I have a 1_initial_migration.js and a 2_deploy_contracts.js file in my migrations folder. That look like:

var Migrations = artifacts.require("./Migrations.sol");

module.exports = function(deployer) {
    deployer.deploy(Migrations);
};

and

var Registry = artifacts.require("./ERC820Registry.sol");
var Token = artifacts.require("./Token.sol");

module.exports = function (deployer) {
    deployer.deploy(Registry);
    deployer.deploy(Token);
};

This obviously deploys the ERC820 to another address than 0x820b586C8C28125366C998641B09DCbE7d4cBF06.

How would I have to change my deployment file for it to be able to deploy the ERC820 Registry to its correct address?

Answer 1

I'll tell you what (continuing our discussion in the comment-thread).

I've found Truffle's deployment-syntax to be very cumbersome, and ended up implementing my own deployment code (though I still run it via truffle deploy or truffle migrate).

Here is an example:

let ARG1 = process.argv[4];
let ARG2 = process.argv[5];
let ARG3 = process.argv[6];

async function deploy(contractName, contractArgs) {
    let handle = await artifacts.require(contractName).new(...contractArgs);
    console.log(`${contractName} contract deployed at address ${handle.address}`);
    return handle;
}

async function deployed(contractName, contractAddr) {
    let handle = await artifacts.require(contractName).at(contractAddr);
    console.log(`${contractName} contract deployed at address ${handle.address}`);
    return handle;
}

async function execute() {
    let contract0 = await deploy("Contract0", []);
    let contract1 = await deploy("Contract1", [ARG1]);
    let contract2 = await deploy("Contract2", [ARG2, contract1.address]);
    let contract3 = await deployed("Contract3", ARG3);
}

module.exports = function(deployer, network, accounts) {
    if (network == "production")
        deployer.then(async function() {await execute();});
};

Then your can run your migration by calling (from command-line):

truffle deploy --network=production 123 456 0x820b586C8C28125366C998641B09DCbE7d4cBF06

Of course, you'll need to add the production network in your truffle-config.js file, for example:

networks: {
    development: {
        host:       "127.0.0.1",
        port:       8545,
        network_id: "*",
        gasPrice:   0x1,
        gas:        0x1fffffffffffff
    },
    production: {
        host:       ...,
        port:       ...,
        network_id: ...,
        gasPrice:   100000000000,
        gas:        6721975
    }
}