Add RSS Feed to History, Software and Project pages.

RSS Feed generates feed containing all subpages from these
sections.

Author: stumbo

config/_default/hugo.yaml

@@ -5,6 +5,9 @@
 # An overview of hugo configuration files can be found at:
 #  https://gohugo.io/getting-started/configuration/#configure-server
 #
+# title: The title that appears in the navbar of every page.  We have 
+#        edited navbar.html to not show the title in the navbar of the home page.
+title: "The Medley Interlisp Project"
 
 # relativeURLs: Enable to force all relative URLs to be relative to content root
 relativeURLs: false
@@ -35,7 +38,12 @@ enableMissingTranslationPlaceholders: true
 disableKinds: 
  - taxonomy
  - term
- - RSS
+
+outputs:
+  home:
+    - HTML
+  section:
+    - HTML
 
 # Code Highlighting configuration 
 #  Not Used.  Code highlighting is controlled using the highlighting

content/en/project/_index.md

@@ -2,6 +2,9 @@
 Title: The Medley Interlisp Project
 weight: 2
 type: docs
+outputs:
+ - html
+ - rss
 aliases:
  - /hugo/
  - /medley/project/

content/en/software/_index.md

@@ -1,6 +1,9 @@
 ---
 title: Software
 type: docs
+outputs:
+ - html
+ - rss
 aliases:
 
 ---

layouts/_default/rss.xml

@@ -0,0 +1,61 @@
+{{- $authorName := "" }}
+{{- with .Site.Params.author }}
+  {{- if reflect.IsMap . }}
+    {{- with .name }}
+      {{- $authorName = . }}
+    {{- end }}
+  {{- else }}
+    {{- $authorName  = . }}
+  {{- end }}
+{{- end }}
+
+{{- $pctx := . }}
+{{- if .IsHome }}{{ $pctx = .Site }}{{ end }}
+
+{{- $pages := slice }}
+{{- $mainPages := where .Pages "Kind" "in" (slice "page" "section") }}
+{{- $pages = $pages | union $mainPages }}
+
+{{- range .Sections }}
+  {{- $sectionPages := where .Pages "Kind" "in" (slice "page" "section") }}
+  {{- $pages = $pages | union $sectionPages }}
+  {{- range .Sections }}
+    {{- $subSectionPages := where .Pages "Kind" "in" (slice "page" "section") }}
+    {{- $pages = $pages | union $subSectionPages }}
+  {{- end }}
+{{- end }}
+
+{{- $limit := .Site.Config.Services.RSS.Limit }}
+{{- if ge $limit 1 }}
+  {{- $pages = $pages | first $limit }}
+{{- end }}
+
+<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
+  <channel>
+    <title>{{ if eq  .Title  .Site.Title }}{{ .Site.Title }}{{ else }}{{ with .Title }}{{.}} on {{ end }}{{ .Site.Title }}{{ end }}</title>
+    <link>{{ .Permalink }}</link>
+    <description>Recent content {{ if ne  .Title  .Site.Title }}{{ with .Title }}in {{.}} {{ end }}{{ end }}on {{ .Site.Title }}</description>
+    <generator>Hugo -- gohugo.io</generator>{{ with .Site.LanguageCode }}
+    <language>{{.}}</language>{{end}}{{ with .Site.Author.email }}
+    <managingEditor>{{.}}{{ with $.Site.Author.name }} ({{.}}){{end}}</managingEditor>{{end}}{{ with .Site.Author.email }}
+    <webMaster>{{.}}{{ with $.Site.Author.name }} ({{.}}){{end}}</webMaster>{{end}}{{ with .Site.Copyright }}
+    <copyright>{{.}}</copyright>{{end}}{{ if not .Date.IsZero }}
+    <lastBuildDate>{{ .Date.Format "Mon, 02 Jan 2006 15:04:05 -0700" | safeHTML }}</lastBuildDate>{{ end }}
+    {{ with .OutputFormats.Get "RSS" }}
+        {{ printf "<atom:link href=%q rel=\"self\" type=%q />" .Permalink .MediaType | safeHTML }}
+    {{ end }}
+    {{ range $pages }}
+    <item>
+      <title>{{ .Title }}</title>
+      <link>{{ .Permalink }}</link>
+      <pubDate>{{ .Date.Format "Mon, 02 Jan 2006 15:04:05 -0700" | safeHTML }}</pubDate>
+      {{ with .Site.Author.email }}<author>{{.}}{{ with $.Site.Author.name }} ({{.}}){{end}}</author>{{end}}
+      <guid>{{ .Permalink }}</guid>
+      <description>{{ .Summary | html }}</description>
+      {{ range .Params.tags }}
+            <category>{{ . }}</category>
+      {{ end }}
+    </item>
+    {{ end }}
+  </channel>
+</rss>