Merge pull request #1 from pjsimpkins/openzeppelin_upgrade

OpenZeppelin SDK Upgrade

.gitignore

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+build/
+.openzeppelin
+node_modules/

README.md

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-# ArroERC20Code
-Arro Code for Solidity
+# Arro Token Contract
+This repo contains the solidity contract code for the Arro.io (ARRO) ERC20 Token.
+It uses OpenZeppelin SDK to create an upgradeable ERC20 Token contract.
+
+### Installation
+Install `yarn` and install dependencies
+```
+yarn install
+```
+
+### Development
+Use a development blockchain to test the deployment of the smart contract.
+In another tab / window run:
+```
+npx ganache-cli --deterministic
+```
+
+Take note of the accounts created.
+
+Then compile and deploy 
+```
+npx oz compile
+npx oz deploy
+```
+
+When deploying run the `initialize()` function with the expected owner.
+
+To test instance methods on the contract use
+```
+npx oz call
+```
+Example:
+```
+? Pick a network development
+? Pick an instance ArroToken at 0xA57B8a5584442B467b4689F1144D269d096A3daF
+? Select which function owner()
+✓ Method 'owner()' returned: 0xFFcf8FDEE72ac11b5c542428B35EEF5769C409f0
+0xFFcf8FDEE72ac11b5c542428B35EEF5769C409f0
+```
+
+To test transactions similarly use
+```
+npx oz send-tx
+```
+Use the flag `-f` to specific `from` to test a transaction
+
+### Testing
+TDB
+
+Any questions reach out to `robinhood@arro.io`

contracts/ArroToken.sol

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+// SPDX-License-Identifier: MIT
+/**
+ * Source Code first verified at https://etherscan.io on Monday, July 30, 2018
+ (UTC) */
+
+pragma solidity ^0.6.2;
+
+// ----------------------------------------------------------------------------
+// 'ARRO' token contract
+//
+// Deployed to :
+// Symbol      : ARRO
+// Name        : Arro.io
+// Total supply: 30,000,000,000
+// Decimals    : 18
+//
+//
+//
+// ----------------------------------------------------------------------------
+
+import "@openzeppelin/contracts-ethereum-package/contracts/GSN/Context.sol";
+import "@openzeppelin/contracts-ethereum-package/contracts/access/Ownable.sol";
+import "@openzeppelin/contracts-ethereum-package/contracts/token/ERC20/ERC20.sol";
+import "@openzeppelin/contracts-ethereum-package/contracts/token/ERC20/ERC20Pausable.sol";
+import "@openzeppelin/contracts-ethereum-package/contracts/Initializable.sol";
+
+contract ArroToken is Initializable, ContextUpgradeSafe, OwnableUpgradeSafe, ERC20PausableUpgradeSafe {
+
+    // ------------------------------------------------------------------------
+    // Gives Owner all tokens
+    // ------------------------------------------------------------------------
+    function initialize(address owner) public {
+        __Context_init_unchained();
+        __Ownable_init_unchained();
+        __ERC20_init_unchained("Arro.io", "ARRO");
+        __Pausable_init_unchained();
+        __ERC20Pausable_init_unchained();
+
+        _mint(owner, 30000000000 * (10 ** uint256(decimals())));
+        transferOwnership(owner);
+    }
+
+    // ------------------------------------------------------------------------
+    // Owner can transfer out any accidentally sent ERC20 tokens
+    // ------------------------------------------------------------------------
+    function transferAnyERC20Token(address tokenAddress, uint amount) public onlyOwner returns (bool) {
+        _transfer(tokenAddress, owner(), amount);
+        return true;
+    }
+
+    // ------------------------------------------------------------------------
+    // Owner can pause all transfers
+    // ------------------------------------------------------------------------
+    function pause() public onlyOwner {
+        _pause();
+    }
+
+    // ------------------------------------------------------------------------
+    // Owner can unpause all transfers
+    // ------------------------------------------------------------------------
+    function unpause() public onlyOwner {
+        _unpause();
+    }
+
+}

networks.js

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+module.exports = {
+  networks: {
+    development: {
+      protocol: 'http',
+      host: 'localhost',
+      port: 8545,
+      gas: 5000000,
+      gasPrice: 5e9,
+      networkId: '*',
+    },
+  },
+};

package.json

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+{
+  "dependencies": {
+    "@openzeppelin/cli": "^2.8.2",
+    "@openzeppelin/contracts": "^3.2.0",
+    "@openzeppelin/contracts-ethereum-package": "^3.0.0",
+    "@openzeppelin/upgrades": "^2.8.0",
+    "ganache-cli": "^6.11.0",
+    "solc": "0.6.2"
+  }
+}