refactor: change .env to be dotenv (#1341)

src/config.ts

@@ -1,10 +1,14 @@
 import {banner} from './banner';
 
-import {config as config_} from 'dotenv';
+import dotenv from 'dotenv';
 import path from 'path';
 import {readFileSync} from 'fs';
 
-config_({path: path.resolve(__dirname, '../.env')});
+if (path.resolve(__dirname, '../dotenv').length > 0) {
+	dotenv.config({path: path.resolve(__dirname, '../dotenv')});
+} else {
+	dotenv.config({path: path.resolve(__dirname, '../.env')});
+}
 
 console.info(
 	banner.render(
@@ -66,8 +70,8 @@ function envOrNumber(environment: string | undefined, number?: number): number {
 
 /**
  * Returns environment variable, given number, or default number,
- * while handling .env input errors for a Min/Max pair.
- * .env errors handled:
+ * while handling dotenv input errors for a Min/Max pair.
+ * dotenv errors handled:
  * - Min/Max swapped (Min larger than Max, Max smaller than Min)
  * - Min larger than default Max when no Max defined
  * - Max smaller than default Min when no Min defined
@@ -106,8 +110,8 @@ function envOrNumberMin(
 
 /**
  * Returns environment variable, given number, or default number,
- * while handling .env input errors for a Min/Max pair.
- * .env errors handled:
+ * while handling dotenv input errors for a Min/Max pair.
+ * dotenv errors handled:
  * - Min/Max swapped (Min larger than Max, Max smaller than Min)
  * - Min larger than default Max when no Max defined
  * - Max smaller than default Min when no Min defined

src/index.ts

@@ -1,6 +1,6 @@
-import {startAPIServer, stopAPIServer} from './web';
+import {config} from './config'; // Needs to be loaded first
+import {startAPIServer, stopAPIServer} from './web'; // eslint-disable-line sort-imports
 import {Browser} from 'puppeteer';
-import {config} from './config';
 import {getSleepTime} from './util';
 import {logger} from './logger';
 import puppeteer from 'puppeteer-extra';

src/notification/mqtt.ts

@@ -65,7 +65,7 @@ function generateTopic(link: Link, store: Store, topic: string): string {
 
 /**
  * Basic protection against sending credentials in the clear over public networks.
- *	- Returns 'true' if password is supplied in .env but address/URL is not part of a private network
+ *	- Returns 'true' if password is supplied in dotenv but address/URL is not part of a private network
  *	- Private networks evaluated:	Class A, B, or C private IP's or linklocal URL ("*.local")
  *	- TLS could be implemented, however, the majority of MQTT services on the internet do not require user authentication.
  *	- If you find a 'cloud' MQTT broker requiring authentication for publishing alerts, consider using another MQTT service (for now).