Combine latest and 5.0 entries in the switcher (#369)

* Combine latest and 5.0 entries in the switcher

* Fixed

Author: mnocon

docs/js/custom.js

@@ -2,6 +2,8 @@
 let jquery = jQuery;
 
 $(document).ready(function() {
+    const latestVersionNumber = '5.0';
+
     // replace edit url
     var branchName = 'master',
         branchNameRegexp = /\/en\/([a-z0-9-_.]*)\//g.exec(document.location.href);
@@ -61,6 +63,15 @@ $(document).ready(function() {
             if ('master' !== (vl = $('.rst-other-versions.switcher__list dl.versions')).find('dd:first').text()) {
                 vl.find('dd').each(function() {$(this).detach().prependTo(vl)});
             }
+
+            // Merge "X.Y" and "latest" entries into "X.Y (latest)"
+            const allVersions = [...document.querySelectorAll('.switcher__list .versions dd')];
+            const latestVersion = allVersions.find(v => v.textContent.trim() === 'latest');
+            const versionXY = allVersions.find(v => v.textContent.trim() === latestVersionNumber);
+
+            const versionXYLink = versionXY.querySelector('a');
+            versionXYLink.textContent = `${latestVersionNumber} (latest)`;
+            latestVersion.remove();
         }
     }, 300);
     setTimeout(function() {