updating jenkins template

snippets/jenkins/template/node/jenkins.js

@@ -1,7 +1,27 @@
+/* eslint-disable no-process-exit */
+/* eslint-disable no-console */
+/* eslint-disable no-sync */
+'use strict';
+
 const fs = require ('fs');
+const child_process = require ('child_process');
 
 const pkg = JSON.parse (fs.readFileSync ('package.json', 'utf-8'));
 [
   ,, pkg.version
 ] = process.argv;
 fs.writeFileSync ('package.json', JSON.stringify (pkg, null, 2));
+
+child_process.execSync ('yarn lint', { stdio: 'inherit' });
+if (typeof pkg.scripts !=='undefined' && typeof pkg.scripts.test === 'string') 
+  child_process.execSync ('yarn test', { stdio: 'inherit' });
+
+child_process.exec ('git log -1 | grep \'\\[no publish\\]\'')
+  .addListener ('exit', (code) => {
+    if (code === 0) {
+      console.log ('build not marked for deployment');
+      process.exit (1);
+    }
+    else
+      child_process.execSync ('yarn publish');
+  });