feat(Env): add support to load .env from different location

According to #116, add support for .env from different location via process.env.ENV_PATH

#116

Author: thetutlage

package.json

@@ -30,6 +30,7 @@
     "pem": "^1.8.1",
     "standard": "^6.0.5",
     "supertest": "^1.1.0",
+    "test-console": "^1.0.0",
     "zombie": "^4.2.1"
   },
   "peerDependencies": {

src/Env/index.js

@@ -21,7 +21,29 @@ const util = require('../../lib/util')
 class Env {
 
   constructor (Helpers) {
-    dotenv.load({path: path.join(Helpers.basePath(), '.env')})
+    const envLocation = this.envPath()
+    const options = {
+      path: path.join(Helpers.basePath(), envLocation),
+      silent: process.env.ENV_SILENT || false,
+      encoding: process.env.ENV_ENCODING || 'utf8'
+    }
+    dotenv.load(options)
+  }
+
+  /**
+   * returns envPath by checking the environment variables
+   *
+   * @method envPath
+   *
+   * @return {String}
+   *
+   * @public
+   */
+  envPath () {
+    if (!process.env.ENV_PATH || process.env.ENV_PATH.length === 0) {
+      return '.env'
+    }
+    return process.env.ENV_PATH
   }
 
   /**

test/unit/env.spec.js

@@ -7,6 +7,7 @@
 */
 
 const Env = require('../../src/Env')
+const stderr = require("test-console").stderr
 const chai = require('chai')
 const expect = chai.expect
 
@@ -21,6 +22,15 @@ describe('Env', function() {
     new Env(Helpers)
   })
 
+  it('should load .env file from the location defined as ENV_PATH flag', function () {
+    const inspect = stderr.inspect()
+    process.env.ENV_PATH = '/users/.env'
+    new Env(Helpers)
+    inspect.restore()
+    expect(inspect.output[0]).to.match(/\/users\/\.env/)
+    process.env.ENV_PATH = ''
+  })
+
   it('should get values defined in .env file', function () {
     const env = new Env(Helpers)
     expect(env.get('APP_PORT')).to.equal('3000')