Migrations

1_initial_migration.js

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+const token = artifacts.require('../contracts/WKNToken.sol')
+const crowdsale = artifacts.require('../contracts/WKNCrowdsale.sol')
+const setDefaultAccount = require('../scripts/setDefaultAccount.js')
+
+module.exports = function(deployer, network, accounts) {
+    const rate = new web3.BigNumber(100)
+    const wallet = '0xa26b9eb1aedb38fe9536e871ecb7d40e0eb1b3b3'
+    // Setup default account
+    setDefaultAccount(web3)
+    const account = web3.eth.accounts.pop()
+    // Get gas limit
+    let gasLimit = web3.eth.getBlock('latest').gasLimit
+    let gasPrice = web3.eth.gasPrice
+    if (process.argv[4] === '--staging') {
+        gasPrice *= 4
+    }
+    console.log(`Determined gas limit: ${gasLimit}; and gas price: ${gasPrice}; max deployment price is ${web3.fromWei(gasPrice * gasLimit, 'ether')} ETH`)
+    // Deploy contract
+    return deployer
+        .then(() => {
+            return deployer.deploy(token, { gas: gasLimit, gasPrice: gasPrice, from: account })
+        })
+        .then(() => {
+            // Get gas limit
+            gasLimit = web3.eth.getBlock('latest').gasLimit
+            console.log(`Determined gas limit: ${gasLimit}; and gas price: ${gasPrice}; estimate max deployment price is ${web3.fromWei(gasPrice * gasLimit, 'ether')} ETH`)
+            console.log('This might take a while, please, be patient')
+            return deployer.deploy(
+                crowdsale,
+                token.address,
+                rate,
+                wallet,
+                { gas: gasLimit, gasPrice: gasPrice, from: account },
+            )
+        })
+        .then(() => {
+            // Make smart-contract an owner
+            var tokenContract = web3.eth.contract(token.abi).at(token.address)
+            tokenContract.transferOwnership(crowdsale.address)
+        });
+}

createRealAccount.js

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+const request = require('sync-request')
+const	query = require('cli-interact').getYesNo
+
+module.exports = function(callback) {
+  const account = web3.personal.newAccount('123456789')
+  console.log(`Created ETH wallet to deploy contracts: ${account} (password is '123456789', don't loose it) — you will be able to access it later`)
+  // Get gas limit
+  const gasLimit = web3.eth.getBlock('latest').gasLimit
+  const gasPrice = web3.eth.gasPrice
+  console.log(`Please, send at least ${web3.fromWei(gasPrice * gasLimit * 3, 'ether')}ETH to ${account} so that the contracts can be deployed`)
+  let funded = false
+  while(!funded) {
+    const answer = query(`Did you send ${web3.fromWei(gasPrice * gasLimit * 3, 'ether')} ETH to ${account}?`);
+    if (answer) {
+      console.log('Checking the balance...')
+      const balance = web3.eth.getBalance(account).toNumber()
+      if (balance >= gasPrice * gasLimit * 3) {
+        console.log(`ETH was received by ${account}, current balance is ${web3.fromWei(balance, 'ether')} ETH, proceeding to deploy the contracts...`)
+        funded = true
+        callback()
+      } else {
+        console.log(`Looks like Ethereum blockchain still does not have enough ETH (maybe transaction is not confirmed yet?). If you have sent enough ETH, it might be the case that you need to wait 10-15 minutes for the transaction to be synced. You can check the status of the transactions here: https://etherscan.io/address/${account} (current balance is current balance is ${web3.fromWei(balance, 'ether')} ETH)`)
+      }
+    } else {
+      console.log(`Please, send at least ${web3.fromWei(gasPrice * gasLimit * 3, 'ether')}ETH to ${account} so that the contracts can be deployed`)
+    }
+  }
+}

createTestAccount.js

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+const request = require('sync-request')
+
+module.exports = function(callback) {
+  const account = web3.personal.newAccount('123456789')
+  console.log(`Created ETH wallet to deploy contracts: ${account} (password is '123456789', don't loose it)`)
+  console.log(`Requesting 1 ETH to ${account} (http://faucet.ropsten.be:3001/donate/${account})`)
+  const res = request('GET', `http://faucet.ropsten.be:3001/donate/${account}`)
+  if (res.statusCode >= 300) {
+    throw new Error('Sorry, Ethereum test faucet request failed: ' + res.body.toString())
+  }
+  console.log('Requested, waiting on the Ethereum node to sync and then 15 seconds to receive test ETH...')
+  setTimeout(() => {
+    checkBalance(account, callback)
+  }, 15 * 1000)
+}
+
+function checkBalance(account, callback) {
+  const balance = web3.eth.getBalance(account)
+  if (balance.toNumber() > 0) {
+    console.log(`Received 1 test ETH successfully (balance is ${web3.fromWei(balance, 'ether')} ETH)`)
+    callback()
+  } else {
+    console.log('Still waiting on 1 test ETH. Retrying to check balance in 15 seconds...')
+    setTimeout(() => {
+      checkBalance(account, callback)
+    }, 15 * 1000)
+  }
+}

setDefaultAccount.js

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+module.exports = function(web3) {
+  if (process.argv[4] === '--staging') {
+    const account = web3.eth.accounts.pop()
+    console.log(`Setting default account to the last account at web3.eth.accounts and unlocking it: ${account}`)
+    web3.personal.unlockAccount(account, '123456789', 24 * 3600)
+    console.log(`${account} unlocked`)
+    web3.eth.defaultAccount = account
+  } else if (process.argv[4] === '--release') {
+    const account = web3.eth.accounts.pop()
+    console.log(`Setting default account to the last account at web3.eth.accounts and unlocking it: ${account}`)
+    web3.personal.unlockAccount(account, '123456789', 24 * 3600)
+    console.log(`${account} unlocked`)
+    web3.eth.defaultAccount = account
+  } else {
+    console.log(`Setting default account to the last account at web3.eth.accounts: ${web3.eth.accounts.pop()}`)
+    web3.eth.defaultAccount = web3.eth.accounts.pop()
+  }
+}