Move default values for contract config env vars to constants file

packages/concordia-contracts/constants/config/defaults.js

@@ -0,0 +1,16 @@
+const DEVELOP_CHAIN_HOST_DEFAULT = '127.0.0.1';
+const DEVELOP_CHAIN_PORT_DEFAULT = '8545';
+
+const TEST_CHAIN_HOST_DEFAULT = '127.0.0.1';
+const TEST_CHAIN_PORT_DEFAULT = '8546';
+
+module.exports = {
+  develop: {
+    chainHost: DEVELOP_CHAIN_HOST_DEFAULT,
+    chainPort: DEVELOP_CHAIN_PORT_DEFAULT,
+  },
+  test: {
+    chainHost: TEST_CHAIN_HOST_DEFAULT,
+    chainPort: TEST_CHAIN_PORT_DEFAULT,
+  },
+};

packages/concordia-contracts/package.json

@@ -10,7 +10,8 @@
     "_eslint": "yarn eslint . --format table",
     "_solhint": "yarn solhint --formatter table contracts/*.sol test/*.sol",
     "test": "yarn truffle test",
-    "migrate": "yarn truffle migrate --network develop --reset"
+    "migrate": "yarn truffle migrate --network develop",
+    "migrate-reset": "yarn truffle migrate --network develop --reset"
   },
   "dependencies": {
     "@openzeppelin/contracts": "~3.2.0",

packages/concordia-contracts/truffle-config.js

@@ -1,7 +1,8 @@
 const path = require('path');
+const defaults = require('./constants/config/defaults');
 
-const { GANACHE_HOST } = process.env;
-const { GANACHE_PORT } = process.env;
+const { CHAIN_HOST } = process.env;
+const { CHAIN_PORT } = process.env;
 
 module.exports = {
   // See <http://truffleframework.com/docs/advanced/configuration>
@@ -14,13 +15,13 @@ module.exports = {
   contracts_build_directory: path.join(__dirname, 'build/'),
   networks: {
     develop: {
-      host: GANACHE_HOST || '127.0.0.1',
-      port: GANACHE_PORT || '8545',
+      host: CHAIN_HOST || defaults.develop.chainHost,
+      port: CHAIN_PORT || defaults.develop.chainPort,
       network_id: '*',
     },
     test: {
-      host: GANACHE_HOST || '127.0.0.1',
-      port: GANACHE_PORT || '8546',
+      host: CHAIN_HOST || defaults.test.chainHost,
+      port: CHAIN_PORT || defaults.test.chainPort,
       network_id: '*',
     },
   },