From b9b26e1d8a625152c4f31e5db4143fcd6bb8a94f Mon Sep 17 00:00:00 2001
From: Matt Condon <mattgcondon@gmail.com>
Date: Fri, 24 Nov 2017 13:11:04 +0200
Subject: [PATCH] feat: allow configuration of ropsten and ganache with env
 variables

---
 .env.example                     |  5 +++++
 migrations/2_deploy_contracts.js |  4 ++++
 package.json                     |  3 +++
 truffle-config.js                | 32 ++++++++++++++++++++++++--------
 4 files changed, 36 insertions(+), 8 deletions(-)
 create mode 100644 .env.example

diff --git a/.env.example b/.env.example
new file mode 100644
index 000000000..889306334
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,5 @@
+# configure your infura api key (not technically required)
+INFURA_API_KEY=
+
+# change the mnemonic that your hd wallet is seeded with
+MNEMONIC=
diff --git a/migrations/2_deploy_contracts.js b/migrations/2_deploy_contracts.js
index 2ce0dfa08..dd7257eb4 100644
--- a/migrations/2_deploy_contracts.js
+++ b/migrations/2_deploy_contracts.js
@@ -1,5 +1,9 @@
 //var Ownable = artifacts.require("ownership/Ownable.sol");
 
+// NOTE: Use this file to easily deploy the contracts you're writing.
+//   (but make sure to reset this file before committing
+//    with `git checkout HEAD -- migrations/2_deploy_contracts.js`)
+
 module.exports = function(deployer) {
   //deployer.deploy(Ownable);
 };
diff --git a/package.json b/package.json
index a0b911b29..43847aaa9 100644
--- a/package.json
+++ b/package.json
@@ -41,5 +41,8 @@
     "solidity-coverage": "^0.2.2",
     "truffle": "^4.0.0",
     "truffle-hdwallet-provider": "0.0.3"
+  },
+  "dependencies": {
+    "dotenv": "^4.0.0"
   }
 }
diff --git a/truffle-config.js b/truffle-config.js
index 31397e46e..8b0f41df3 100644
--- a/truffle-config.js
+++ b/truffle-config.js
@@ -1,14 +1,20 @@
+require('dotenv').config();
 require('babel-register');
 require('babel-polyfill');
 
-var provider;
-var HDWalletProvider = require('truffle-hdwallet-provider');
-var mnemonic = '[REDACTED]';
+const HDWalletProvider = require('truffle-hdwallet-provider');
 
-if (!process.env.SOLIDITY_COVERAGE){
-  provider = new HDWalletProvider(mnemonic, 'https://ropsten.infura.io/')
-}
+const providerWithMnemonic = (mnemonic, rpcEndpoint) =>
+  new HDWalletProvider(mnemonic, rpcEndpoint)
 
+const infuraProvider = network => providerWithMnemonic(
+  process.env.MNEMONIC,
+  `https://${network}.infura.io/${process.env.INFURA_API_KEY}`
+)
+
+const ropstenProvider = process.env.SOLIDITY_COVERAGE
+  ? undefined
+  : infuraProvider('ropsten')
 
 module.exports = {
   networks: {
@@ -18,7 +24,7 @@ module.exports = {
       network_id: '*'
     },
     ropsten: {
-      provider: provider,
+      provider: ropstenProvider,
       network_id: 3 // official id of the ropsten network
     },
     coverage: {
@@ -27,6 +33,16 @@ module.exports = {
       port: 8555,
       gas: 0xfffffffffff,
       gasPrice: 0x01
-    }
+    },
+    testrpc: {
+      host: 'localhost',
+      port: 8545,
+      network_id: '*'
+    },
+    ganache: {
+      host: 'localhost',
+      port: 7545,
+      network_id: '*'
+    },
   }
 };