[enh] hostname in mails

src/lib/mail.ts

@@ -2,6 +2,7 @@ import {moment} from "duniter/app/lib/common-libs/moment";
 import {Conf} from "./types/conf";
 import {ConfMail} from './types/conf'
 import * as nodemailer from 'nodemailer'
+import * as os from 'os'
 
 export async function sendMail(conf: ConfMail, subject: string, html: string) {
 
@@ -33,7 +34,7 @@ export const mail = {
   onEstablished: (conf: Conf, target: string) => {
     return async () => {
       console.log('Connection established')
-      await sendMail(conf.mail, '[dwatcher] Connection established', `
+      await sendMail(conf.mail, `[dwatcher] [${os.hostname}] Connection established`, `
       <p>
         Connection to ${target} established on ${moment().format('DD-MM-YYYY HH:mm:ss')}.
       </p>
@@ -45,7 +46,7 @@ export const mail = {
     return async (waitingDelay: number) => {
       console.log('Connection closed')
       console.log('Waiting %s seconds...', waitingDelay)
-      await sendMail(conf.mail, '[dwatcher] Connection closed', `
+      await sendMail(conf.mail, `[dwatcher] [${os.hostname}] Connection closed`, `
       <p>
         Connection to ${target} was lost on ${moment().format('dd-MM-YYYY HH:mm:ss')}.
       </p>
@@ -59,7 +60,7 @@ export const mail = {
   onRestartSuccess: (conf: Conf, target: string) => {
     return async () => {
       console.log('Connection recovered')
-      await sendMail(conf.mail, '[dwatcher] Connection recovered', `
+      await sendMail(conf.mail, `[dwatcher] [${os.hostname}] Connection recovered`, `
       <p>
         Connection to ${target} was recovered on ${moment().format('dd-MM-YYYY HH:mm:ss')}.
       </p>
@@ -70,7 +71,7 @@ export const mail = {
   onError: (conf: Conf, target: string) => {
     return async (e: Error) => {
       console.error(e.message || e)
-    //   await sendMail(conf.mail, '[dwatcher] Connection error', `
+    //   await sendMail(conf.mail, `[dwatcher] Connection error`, `
     //   <p>
     //     Connection error with ${target} on ${moment().format('dd-MM-YYYY HH:mm:ss')}:
     //   </p>