Replace update-notifier with own implementation

bin/nodemon.js

@@ -6,11 +6,9 @@ const options = cli.parse(process.argv);
 
 nodemon(options);
 
-const fs = require('fs');
-
 // checks for available update and returns an instance
-const pkg = JSON.parse(fs.readFileSync(__dirname + '/../package.json'));
+const pkg = require('../package.json');
 
 if (pkg.version.indexOf('0.0.0') !== 0 && options.noUpdateNotifier !== true) {
-  require('update-notifier')({ pkg }).notify();
+  require('../lib/update-notifier')(pkg);
 }

lib/update-notifier.js

@@ -0,0 +1,31 @@
+const https = require('https')
+const ConfigStore = require('configstore')
+const { compare } = require('compare-versions')
+
+const CHECK_INTERVAL = 1000 * 60 * 60 * 24
+
+module.exports = function (pkg) {
+  const pkgName = pkg.name
+  const pkgVer = pkg.version
+
+  const config = new ConfigStore(`update-notifier-${pkgName}`)
+  if (Date.now() - config.get('lastUpdateCheck') < CHECK_INTERVAL) {
+    return;
+  }
+
+  https.get(`https://registry.npmjs.org/-/package/${pkgName}/dist-tags`, (res) => {
+    let body = ''
+    res.on('data', (chunk) => body += chunk)
+    res.on('end', () => {
+      const jsonBody = JSON.parse(body)
+      const latestVer = jsonBody['latest']
+      if (compare(latestVer, pkgVer, '>')) {
+        const msg = `    Update of \x1b[36m${pkgName}\x1b[0m available \x1b[30m${pkgVer}\x1b[0m → \x1b[32m${latestVer}\x1b[0m`
+        console.log('')
+        console.log(msg)
+        console.log('')
+      }
+      config.set('lastUpdateCheck', Date.now())
+    })
+  })
+}