feat: check for updates

server/core/config.js

@@ -52,9 +52,12 @@ module.exports = {
       appconfig.port = process.env.PORT || 80
     }
 
+    const packageInfo = require(path.join(WIKI.ROOTPATH, 'package.json'))
+
     WIKI.config = appconfig
     WIKI.data = appdata
-    WIKI.version = require(path.join(WIKI.ROOTPATH, 'package.json')).version
+    WIKI.version = packageInfo.version
+    WIKI.releaseDate = packageInfo.releaseDate
   },
 
   /**

server/core/redis.js

@@ -25,12 +25,11 @@ module.exports = {
     red.on('message', (channel, msg) => {
       WIKI.events.emit(channel, msg)
     })
-    red.subscribe('localization', (err, count) => {
+    red.subscribe('localization', 'updates', (err, count) => {
       if (err) {
         WIKI.logger.error(err)
         process.exit(1)
       }
-      WIKI.logger.info('Redis Subscriber connection: [ OK ]')
     })
     return red
   }

server/core/system.js

@@ -5,6 +5,25 @@ const Promise = require('bluebird')
 /* global WIKI */
 
 module.exports = {
+  updates: {
+    channel: 'BETA',
+    version: WIKI.version,
+    releaseDate: WIKI.releaseDate,
+    minimumVersionRequired: '2.0.0-beta.0',
+    minimumNodeRequired: '10.12.0'
+  },
+  init() {
+    // Listen for updates events
+    WIKI.events.on('updates', (infoRaw) => {
+      try {
+        this.updates = JSON.parse(infoRaw)
+      } catch (err) {
+        WIKI.logger.warn('Failed to parse updates info.')
+      }
+    })
+
+    return this
+  },
   /**
    * Upgrade from WIKI.js 1.x - MongoDB database
    *