add meta tags for the docsearch scraper (PR #99)

Author: mojavelinux

src/js/vendor/docsearch.bundle.js

@@ -135,7 +135,13 @@
     return hits.map(function (hit) {
       var lvl0 = hit.hierarchy.lvl0
       var lvl1 = hit.hierarchy.lvl1
-      if (!lvl0) lvl0 = hit.hierarchy.lvl0 = hit.component + (hit.version === 'master' ? '' : ' ' + hit.version)
+      if (!lvl0) {
+        if ((lvl0 = hit.component_title)) {
+          lvl0 = hit.hierarchy.lvl0 = lvl0 + (hit.display_version ? ' ' + hit.display_version : '')
+        } else {
+          lvl0 = hit.hierarchy.lvl0 = hit.component + (hit.version ? ' ' + hit.version : '')
+        }
+      }
       if (!lvl1) lvl1 = hit.hierarchy.lvl1 = lvl0
       var lvl0Qualifier = lvl0Qualifiers[lvl0]
       if (lvl0 !== prevLvl0) {

src/partials/head-meta.hbs

@@ -8,6 +8,16 @@
 <link rel="schema.dcterms" href="https://purl.org/dc/terms/">
 <meta name="dcterms.subject" content="{{page.component.name}}">
 <meta name="dcterms.identifier" content="{{page.version}}">
+<meta name="docsearch:component_title" content="{{{page.component.title}}}">
+{{#if (eq page.version 'master')}}
+<meta name="docsearch:component_version" content='["{{{./page.component.name}}}","{{{./page.component.name}}}"]'>
+{{else}}
+{{#with page.componentVersion}}
+<meta name="docsearch:component_version" content='["{{{./name}}}@{{{./version}}}"{{#if (eq this @root.page.component.latest)}},"{{{./name}}}"{{/if}}]'>
+<meta name="docsearch:version" content="{{{./version}}}">
+<meta name="docsearch:display_version" content='"{{{./displayVersion}}}"'>
+{{/with}}
+{{/if}}
 {{/if}}
 <meta name="generator" content="Antora {{antoraVersion}}">
 <link rel="icon" href="{{{uiRootPath}}}/img/favicon.ico" type="image/x-icon">