feat: Add RSS feed generation

Added RSS feed and configured the limit.

Author: neural-loop

hugo.toml

@@ -123,3 +123,9 @@ priority = 0
 [Taxonomies]
 category = "categories"
 author = "authors"
+
+######################### Services ###############################
+[services]
+[services.rss]
+# Number of items to include in the RSS feed.
+limit = 20

layouts/index.xml

@@ -0,0 +1,38 @@
+{{- $pctx := . -}}
+{{- if .IsHome -}}{{ $pctx = .Site }}{{- end -}}
+{{- $pages := slice -}}
+{{- $sectionsToInclude := (slice "blog" "workshops") -}}
+{{- $typesToInclude := (slice "student-talks" "hacking-hours") -}}
+
+{{- range $pctx.RegularPages -}}
+  {{- if and .Date (not .Date.IsZero) (or (in $sectionsToInclude .Section) (in $typesToInclude .Type)) (ne .Params.upcoming true) -}}
+    {{- $pages = $pages | append . -}}
+  {{- end -}}
+{{- end -}}
+
+{{- $limit := .Site.Config.Services.RSS.Limit | default 20 -}}
+{{- printf "<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\"?>" | safeHTML }}
+<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</generator>
+    <language>{{ site.Language.LanguageCode | default "en-us" }}</language>
+    {{ with .Site.Lastmod -}}
+    <lastBuildDate>{{ .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 first $limit (sort $pages "Date" "desc") -}}
+    <item>
+      <title>{{ .Title }}</title>
+      <link>{{ .Permalink }}</link>
+      <pubDate>{{ .Date.Format "Mon, 02 Jan 2006 15:04:05 -0700" | safeHTML }}</pubDate>
+      <guid>{{ .Permalink }}</guid>
+      <description>{{ .Description }}</description>
+    </item>
+    {{- end -}}
+  </channel>
+</rss>