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Update to @openzeppelin/contracts-upgradeable from @openzeppelin/contracts

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This commit is contained in:
Shaun Reed 2021-05-04 20:56:53 -04:00
parent ebb4e5a2d5
commit a9784bb02c
8 changed files with 210 additions and 147 deletions
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28
contracts/karma-1-ERC20.sol Normal file
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@ -0,0 +1,28 @@
// Copyright [2021] - [2021], [Shaun Reed] and [Karma] contributors
// SPDX-License-Identifier: MIT
pragma solidity >= 0.8.0;
// ----------------------------------------------------------------------------
// Import ERC Token Standard #20 Interface
// ETH EIP repo: https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md
// ----------------------------------------------------------------------------
import "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
// ----------------------------------------------------------------------------
// Karma Contract
// ----------------------------------------------------------------------------
contract KarmaV2 is Initializable, ERC20Upgradeable
{
function initialize(string memory name, string memory symbol, uint256 initialSupply) public virtual initializer {
__ERC20_init(name, symbol);
_mint(_msgSender(), initialSupply);
}
function isToken() public returns (bool)
{
return true;
}
}

134
contracts/karma-ERC20.sol
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@ -7,136 +7,18 @@ pragma solidity >= 0.8.0;
// Import ERC Token Standard #20 Interface // Import ERC Token Standard #20 Interface
// ETH EIP repo: https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md // ETH EIP repo: https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md
// ---------------------------------------------------------------------------- // ----------------------------------------------------------------------------
import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol";
import "@openzeppelin/contracts/proxy/utils/Initializable.sol"; import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
// ---------------------------------------------------------------------------- // ----------------------------------------------------------------------------
// Karma Contract // Karma Contract
// ---------------------------------------------------------------------------- // ----------------------------------------------------------------------------
contract Karma is IERC20, Initializable
contract Karma is Initializable, ERC20Upgradeable
{ {
// Avoid initializing fields in declarations function initialize(string memory name, string memory symbol, uint256 initialSupply) public virtual initializer {
// https://docs.openzeppelin.com/upgrades-plugins/1.x/writing-upgradeable#avoid-initial-values-in-field-declarations __ERC20_init(name, symbol);
string public name; _mint(_msgSender(), initialSupply);
string public symbol;
uint8 public decimals; // 18 decimals is the strongly suggested default, avoid changing it
uint256 public _totalSupply;
// Balances for each account; A hashmap using wallet address as key and uint as value
mapping(address => uint) balances;
// Owner of account approves the transfer of an amount to another account
mapping(address => mapping(address => uint)) allowed;
//
// /**
// * Constrctor function
// *
// * Initializes contract with initial supply tokens to the creator of the contract
// */
// constructor()
// {
// name = "Karma"; // Name of the token
// symbol = "KRMA"; // Abbreviation of the token
// decimals = 18; // Number of decimals that can be used to split token
//
//
// // FORMAT: <SUPPLY><DECIMALS>
// // Where SUPPLY is the number of coins in base 10 decimal notation
// // And DECIMALS is a trailing number of 0's; Count must match `decimals` value set above
// // 1000 000 000 000000000000000000 == 1 billion total supply;
// // + trailing 0's represent the 18 decimal locations that can be used to send fractions
// _totalSupply = 1000000000000000000000000000;
//
//
// // Set the remaining balance of the contract owner to the total supply
// balances[msg.sender] = _totalSupply; // msg.sender is the calling address for this constructor
// // Transfer the total supply to the contract owner on initialization
// emit Transfer(address(0), msg.sender, _totalSupply); // address(0) is used to represent a new TX
// }
function initialize() public initializer
{
// ERC20 Standard dictates names of these variables
// https://ethereum.org/en/developers/docs/standards/tokens/erc-20/#body
name = "Karma"; // Name of the token
symbol = "KRMA"; // Abbreviation of the token
decimals = 18; // Number of decimals that can be used to split token
// FORMAT: <SUPPLY><DECIMALS>
// Where SUPPLY is the number of coins in base 10 decimal notation
// And DECIMALS is a trailing number of 0's; Count must match `decimals` value set above
// 1000 000 000 000000000000000000 == 1 billion total supply;
// + trailing 0's represent the 18 decimal locations that can be used to send fractions
_totalSupply = 1000000000000000000000000000;
// Set the remaining balance of the contract owner to the total supply
balances[msg.sender] = _totalSupply; // msg.sender is the calling address for this constructor
// Transfer the total supply to the contract owner on initialization
emit Transfer(address(0), msg.sender, _totalSupply); // address(0) is used to represent a new TX
} }
// Get the total circulating supply of the token
function totalSupply() public override view returns (uint)
{
// By subtracting from tokens held at address(0), we provide an address to 'burn' the supply
return _totalSupply - balances[address(0)]; // Subtract from tokens held at address(0)
}
// Get the token balance for account `tokenOwner`
function balanceOf(address tokenOwner) public override view returns (uint balance)
{
return balances[tokenOwner]; // Return the balance of the owner's address
}
// To initiate a transaction, we first approve an address to withdraw from our wallet
// + msg.sender is approving spender to withdraw from its balance _value tokens
// Allow `spender` to withdraw from your account, multiple times, up to the `tokens`
// If this function is called again it overwrites the current allowance with _value
function approve(address spender, uint _value) public override returns (bool success)
{
// https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
//if ((value != 0) && (allowed[msg.sender][spender] != 0)) throw;
allowed[msg.sender][spender] = _value;
emit Approval(msg.sender, spender, _value);
return true;
}
// Helper to check the amount of tokens allowed for this spender at this address
// @param tokenOwner The address of the account owning tokens
// @param spender The address of the account able to transfer the tokens
// returns Amount of remaining tokens allowed to spent
function allowance(address tokenOwner, address spender) public override view returns (uint remaining)
{
return allowed[tokenOwner][spender];
}
// Send `_value` amount of tokens from address `from` to address `to`
function transferFrom(address from, address to, uint _value) public override returns (bool success)
{
// Set this wallet balance -= _value
balances[from] = balances[from] - _value;
// Update this wallet's approved balance for the withdrawing address
// uint allowance = allowed[from][msg.sender];
allowed[from][msg.sender] -= _value;
// Add the amount of tokens to the balance at the receiving address
balances[to] = balances[to] + _value;
emit Transfer(from, to, _value);
return true;
}
// Transfer the balance from owner's account to another account
function transfer(address to, uint tokens) public override returns (bool success)
{
balances[msg.sender] = balances[msg.sender] - tokens;
balances[to] = balances[to] + tokens;
emit Transfer(msg.sender, to, tokens);
return true;
}
} }

7
migrations/2_deploy_karma.js
View File

@ -1,10 +1,5 @@
const { deployProxy } = require('@openzeppelin/truffle-upgrades');
const Karma = artifacts.require('Karma'); const Karma = artifacts.require('Karma');
module.exports = async function (deployer) { module.exports = async function (deployer) {
// initializer chooses function to call on initialization await deployer.deploy(Karma);
// + initialize() defined in karma-ERC20.sol, marked as initializer
// https://docs.openzeppelin.com/upgrades-plugins/1.x/api-truffle-upgrades#deploy-proxy
await deployProxy(Karma, {deployer, initializer: 'initialize'});
}; };

11
migrations/3_deploy_proxy.js Normal file
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@ -0,0 +1,11 @@
const Karma = artifacts.require('Karma');
const { deployProxy } = require('@openzeppelin/truffle-upgrades');
module.exports = async function (deployer) {
await deployProxy(
Karma,
['Karma', 'KRMA', '1000000000000000000000000000'],
{ deployer, initializer: 'initialize' }
);
};

9
migrations/4_upgrade_karma.js Normal file
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@ -0,0 +1,9 @@
const { upgradeProxy } = require('@openzeppelin/truffle-upgrades');
const Karma = artifacts.require('Karma');
const KarmaV2 = artifacts.require('KarmaV2');
module.exports = async function (deployer) {
const existing = await Karma.deployed();
await upgradeProxy(existing.address, KarmaV2, { deployer });
};

151
package-lock.json generated
View File

@ -3541,6 +3541,12 @@
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"dev": true "dev": true
}, },
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},
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@ -3808,12 +3814,128 @@
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"dev": true "dev": true
}, },
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"dev": true
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"@szmarczak/http-timer": { "@szmarczak/http-timer": {
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@ -10157,7 +10279,6 @@
"resolved": "https://registry.npmjs.org/find-up/-/find-up-2.1.0.tgz", "resolved": "https://registry.npmjs.org/find-up/-/find-up-2.1.0.tgz",
"integrity": "sha1-RdG35QbHF93UgndaK3eSCjwMV6c=", "integrity": "sha1-RdG35QbHF93UgndaK3eSCjwMV6c=",
"dev": true, "dev": true,
"optional": true,
"requires": { "requires": {
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} }
@ -11010,8 +11131,7 @@
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"dev": true, "dev": true
"optional": true
}, },
"htmlparser2": { "htmlparser2": {
"version": "3.10.1", "version": "3.10.1",
@ -13422,7 +13542,6 @@
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"integrity": "sha1-K1aLJl7slExtnA3pw9u7ygNUzY4=", "integrity": "sha1-K1aLJl7slExtnA3pw9u7ygNUzY4=",
"dev": true, "dev": true,
"optional": true,
"requires": { "requires": {
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"path-exists": "^3.0.0" "path-exists": "^3.0.0"
@ -15692,7 +15811,6 @@
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"dev": true, "dev": true,
"optional": true,
"requires": { "requires": {
"p-try": "^1.0.0" "p-try": "^1.0.0"
} }
@ -15702,7 +15820,6 @@
"resolved": "https://registry.npmjs.org/p-locate/-/p-locate-2.0.0.tgz", "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-2.0.0.tgz",
"integrity": "sha1-IKAQOyIqcMj9OcwuWAaA893l7EM=", "integrity": "sha1-IKAQOyIqcMj9OcwuWAaA893l7EM=",
"dev": true, "dev": true,
"optional": true,
"requires": { "requires": {
"p-limit": "^1.1.0" "p-limit": "^1.1.0"
} }
@ -15727,8 +15844,7 @@
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"resolved": "https://registry.npmjs.org/p-try/-/p-try-1.0.0.tgz", "resolved": "https://registry.npmjs.org/p-try/-/p-try-1.0.0.tgz",
"integrity": "sha1-y8ec26+P1CKOE/Yh8rGiN8GyB7M=", "integrity": "sha1-y8ec26+P1CKOE/Yh8rGiN8GyB7M=",
"dev": true, "dev": true
"optional": true
}, },
"pako": { "pako": {
"version": "1.0.11", "version": "1.0.11",
@ -19522,6 +19638,19 @@
"original-require": "^1.0.1" "original-require": "^1.0.1"
} }
}, },
"truffle-flattener": {
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"resolved": "https://registry.npmjs.org/truffle-flattener/-/truffle-flattener-1.5.0.tgz",
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"dev": true,
"requires": {
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"@solidity-parser/parser": "^0.8.0",
"find-up": "^2.1.0",
"mkdirp": "^1.0.4",
"tsort": "0.0.1"
}
},
"truffle-plugin-verify": { "truffle-plugin-verify": {
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"resolved": "https://registry.npmjs.org/truffle-plugin-verify/-/truffle-plugin-verify-0.5.7.tgz", "resolved": "https://registry.npmjs.org/truffle-plugin-verify/-/truffle-plugin-verify-0.5.7.tgz",
@ -19562,6 +19691,12 @@
"dev": true, "dev": true,
"optional": true "optional": true
}, },
"tsort": {
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"integrity": "sha1-4igPXoF/i/QnVlf9D5rr1E9aJ4Y=",
"dev": true
},
"tty-table": { "tty-table": {
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"resolved": "https://registry.npmjs.org/tty-table/-/tty-table-2.8.13.tgz", "resolved": "https://registry.npmjs.org/tty-table/-/tty-table-2.8.13.tgz",

2
package.json
View File

@ -11,9 +11,11 @@
"license": "MIT", "license": "MIT",
"devDependencies": { "devDependencies": {
"@openzeppelin/contracts": "^4.0.0", "@openzeppelin/contracts": "^4.0.0",
"@openzeppelin/contracts-upgradeable": "^4.1.0",
"@openzeppelin/truffle-upgrades": "^1.6.0", "@openzeppelin/truffle-upgrades": "^1.6.0",
"@truffle/hdwallet-provider": "^1.3.0", "@truffle/hdwallet-provider": "^1.3.0",
"truffle": "^5.3.3", "truffle": "^5.3.3",
"truffle-flattener": "^1.5.0",
"truffle-plugin-verify": "^0.5.7" "truffle-plugin-verify": "^0.5.7"
} }
} }

13
truffle-config.js
View File

@ -26,6 +26,12 @@ const { alchemyApiUrl, mnemonic, etherscanApiKey } = require('./secrets.json');
// const mnemonic = fs.readFileSync(".secret").toString().trim(); // const mnemonic = fs.readFileSync(".secret").toString().trim();
module.exports = { module.exports = {
plugins: [
'truffle-plugin-verify'
],
api_keys: {
etherscan: etherscanApiKey
},
/** /**
* Networks define how you connect to your ethereum client and let you set the * Networks define how you connect to your ethereum client and let you set the
* defaults web3 uses to send transactions. If you don't specify one truffle * defaults web3 uses to send transactions. If you don't specify one truffle
@ -111,10 +117,5 @@ module.exports = {
db: { db: {
enabled: false enabled: false
}, },
api_keys: {
etherscan: etherscanApiKey
},
plugins: [
'truffle-plugin-verify'
]
}; };