Convert site to Hugo (#8316)

This commit converts content and layout to use Hugo.

layouts/partials/docs/browse.html

@@ -0,0 +1,39 @@
+
+<div id='browsedocsWrapper'>
+<div class="browseheader" id="browsedocs">
+    <a name="browsedocs">Browse Docs</a>
+  </div>
+<div class="browsedocs">
+{{ range . }}
+{{ template "docs-browse-section"  . }}
+{{ end }}
+</div><!-- end browsedocs -->
+
+
+{{ define "docs-browse-section" }}
+<div class="browsesection">
+  <div class="docstitle">
+    <h3><a href="{{ .RelPermalink }}">{{ .Params.bigheader | default .Title }}</a></h3>
+  </div>
+  {{ $pages := .Pages | union .Sections }}
+  {{ $pages := where $pages ".Params.toc_hide" "!=" true }}
+  {{ if ge (len $pages) 1 }}
+  <div class="pages">
+  {{ $num_pages := len $pages }}
+  {{ if gt $num_pages 0 }}
+  {{ $column_size :=  (div $num_pages 3) | math.Ceil | int | default 1 }}
+  {{  range $i, $e := $pages.ByWeight }}
+    {{ $offset := mod $i $column_size |  add 1 }}
+    {{ if eq $offset 1 }}
+      <div class="browsecolumn">
+    {{ end }}
+    <a href="{{ .RelPermalink }}">{{ printf "%02d - %s" (add $i 1) .LinkTitle }}</a><br>
+    {{ if or (eq $offset $column_size) (eq (add $i 1) $num_pages)}}
+      </div>
+    {{ end }}
+  {{ end }}
+  {{ end }}
+  </div><!-- end pages -->
+  {{ end }}
+</div><!-- end browsesection -->
+{{ end }}

layouts/partials/docs/content_page.html

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+<p><a href="{{ printf "%s#%s" ("docs/editdocs" | relURL) .page.Path | safeURL }}" id="editPageButton">Edit This Page</a></p>
+{{ if not .page.Params.notitle }}
+<h1>{{ .page.Title }}</h1>
+{{ end }}
+{{ with .page.Params.content_template }}
+{{ partial . $ }}
+{{ else }}
+{{ if and (not .page.Params.toc_hide) (not (.page.HasShortcode "toc")) }}
+{{ .page.TableOfContents }}
+{{ end }}
+{{ .page.Content }}
+{{ end }}

layouts/partials/docs/side-menu.html

@@ -0,0 +1,24 @@
+<div id="docsToc">
+     <div class="pi-accordion">
+    	{{/* This can be any page in the docs tree. Need to find the correct ancestor. 
+                  In a roundabout way. This will improve when Go templates gets assignment and break support (both in Go 1.11).
+         */}}
+        {{ $p := . }}
+        {{ .Scratch.Set "section" .CurrentSection }}
+        {{ .Scratch.Set "sectionFound" false }}
+        {{ $docs := .Site.GetPage "section" "docs" }}
+        {{ if ne .CurrentSection $docs }}
+         {{ range $docs.Sections }}
+             {{ if not ($.Scratch.Get "sectionFound") }}
+                 {{ if $p.IsDescendant . }}
+                          {{ $.Scratch.Set "section" . }}
+                          {{ $.Scratch.Set "sectionFound" true }}
+                 {{ end }}
+             {{ end }}
+         {{ end }}
+         {{ end }}
+        {{ $section := (.Scratch.Get "section") }}
+        {{ partialCached "tree.html" $section $section.RelPermalink }}
+     </div> <!-- /pi-accordion -->
+    <button class="push-menu-close-button" onclick="kub.toggleToc()"></button>
+</div> <!-- /docsToc -->

layouts/partials/docs/top-menu.html

@@ -0,0 +1,21 @@
+{{ $p := . }}
+{{ $home := .Site.Home }}
+{{ $docs := .Site.GetPage "section" "docs" }}
+{{ $menuSections := (where $docs.Sections ".Params.main_menu" true) }}
+{{ range $menuSections }}
+{{ if $p.IsDescendant . }}
+<h1>{{ if not (strings.Contains .Dir "home")}}{{ .Params.bigheader | default .Title }}{{ end }}</h1>
+<h5>{{ .Params.abstract }}</h5>
+{{ end }}
+{{ end }}
+<div id="vendorStrip" class="light-text">
+	<ul>
+		{{ range $menuSections }}
+		{{ $yah := $p.IsDescendant . }}
+		<li><a href="{{ .RelPermalink }}"{{ if $yah }} class="YAH"{{ end }}>{{ .LinkTitle | upper }}</a></li>
+		{{ end }}
+	</ul>
+	<div id="searchBox">
+		<input type="text" id="search" placeholder="Search" onkeydown="if (event.keyCode==13) window.location.replace('/docs/search/?q=' + this.value)" autofocus="autofocus">
+	</div>
+</div>

layouts/partials/docs/user-journey.html

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+<div class="track">{{ .Params.track }}</div>
+<div class="topheader">
+   Introduction
+</div>
+<div class="sections">sections in this doc</div>
+<div id="user-journeys-toc" class="tablebar">
+<!-- This TOC section is populated with Javascript, see js/user-journeys-toc.js -->
+</div>
+
+<div class="docsection1">
+
+{{ partial "insert-capture" (dict "ctx" . "id" "overview" )}}
+
+{{- with .Scratch.Get "__cid_body" -}}
+{{ $body := replace .   `<h2` `</div><h2` }}
+{{ $body := replace $body  `</h2>`  `</h2><div class="docsection1">` | safeHTML  }}
+{{-  $body -}}
+{{- end -}}
+
+</div>
+
+<script src="{{ "js/user-journeys/toc.js" | relURL }}"></script>