Only show website title on homepage

html-head.html file can be removed if
alex-shpak/hugo-book/pull/384 is accepted.

layouts/partials/docs/html-head.html

@@ -0,0 +1,50 @@
+<meta charset="UTF-8">
+<meta name="viewport" content="width=device-width, initial-scale=1.0">
+<meta name="description" content="{{ default .Summary .Description }}">
+<meta name="theme-color" content="#FFFFFF">
+
+{{- template "_internal/opengraph.html" . -}}
+
+{{ partial "docs/site-title" . }}
+
+{{- $manifest := resources.Get "manifest.json" | resources.ExecuteAsTemplate "manifest.json" . }}
+<link rel="manifest" href="{{ $manifest.RelPermalink }}">
+<link rel="icon" href="{{ "favicon.png" | relURL }}" type="image/x-icon">
+
+{{- range .Translations }}
+  <link rel="alternate" hreflang="{{ .Language.Lang }}" href="{{ .Permalink }}" title="{{ partial "docs/title" . }}">
+{{- end -}}
+
+<!-- Theme stylesheet, you can customize scss by creating `assets/custom.scss` in your website -->
+{{- $styles := resources.Get "book.scss" | resources.ExecuteAsTemplate "book.scss" . | resources.ToCSS | resources.Minify | resources.Fingerprint }}
+<link rel="stylesheet" href="{{ $styles.RelPermalink }}" {{ template "integrity" $styles }}>
+
+{{- if default true .Site.Params.BookSearch -}}
+  {{- $searchJSFile := printf "%s.search.js" .Language.Lang }}
+  {{- $searchJS := resources.Get "search.js" | resources.ExecuteAsTemplate $searchJSFile . | resources.Minify | resources.Fingerprint }}
+  <script defer src="{{ "flexsearch.min.js" | relURL }}"></script>
+  <script defer src="{{ $searchJS.RelPermalink }}" {{ template "integrity" $searchJS }}></script>
+{{ end -}}
+
+{{- if .Site.Params.BookServiceWorker -}}
+  {{- $swJS := resources.Get "sw-register.js" | resources.ExecuteAsTemplate "sw.js" . | resources.Minify | resources.Fingerprint }}
+  <script defer src="{{ $swJS.RelPermalink }}" {{ template "integrity" $swJS }}></script>
+{{ end -}}
+
+{{- template "_internal/google_analytics_async.html" . -}}
+
+<!-- RSS -->
+{{- with .OutputFormats.Get "rss" -}}
+  {{ printf `<link rel="%s" type="%s" href="%s" title="%s" />` .Rel .MediaType.Type .Permalink $.Site.Title | safeHTML }}
+{{ end -}}
+
+{{ "<!--" | safeHTML }}
+Made with Book Theme
+https://github.com/alex-shpak/hugo-book
+{{ "-->" | safeHTML }}
+
+{{- define "integrity" -}}
+  {{- if (urls.Parse .Permalink).Host -}}
+    integrity="{{ .Data.Integrity }}" crossorigin="anonymous"
+  {{- end -}}
+{{- end -}}

layouts/partials/docs/site-title.html

@@ -0,0 +1 @@
+<title>{{ if not .IsHome }}{{ partial "docs/title" . }} | {{ end }}{{ .Site.Title }}</title>