From f60940560d8a1165fc051e69af1ddbe4873b8d9c Mon Sep 17 00:00:00 2001
From: razonyang <razonyang@gmail.com>
Date: Wed, 7 Sep 2022 22:57:58 +0800
Subject: [PATCH] feat(rss): add custom RSS template

---
 exampleSite/config/_default/params.toml |  3 ++
 layouts/_default/rss.xml                |  3 +-
 layouts/partials/footer/copyright.html  |  2 +-
 layouts/partials/helpers/copyright.html |  1 +
 layouts/partials/rss.html               | 42 ++++++++++++++++++++++++-
 layouts/partials/rss/enclosure.html     | 16 ++++++++++
 6 files changed, 63 insertions(+), 4 deletions(-)
 create mode 100644 layouts/partials/helpers/copyright.html
 create mode 100644 layouts/partials/rss/enclosure.html

diff --git a/exampleSite/config/_default/params.toml b/exampleSite/config/_default/params.toml
index 2d2b0abf3..6b48a3bcc 100644
--- a/exampleSite/config/_default/params.toml
+++ b/exampleSite/config/_default/params.toml
@@ -250,3 +250,6 @@ viewer = true # Image Viewer
 [docs]
   [docs.nav]
     # expand = true # Expand docs navigations.
+
+[feeds]
+  contentAsDescription = true
diff --git a/layouts/_default/rss.xml b/layouts/_default/rss.xml
index 8f4560ee8..08b4bd9da 100644
--- a/layouts/_default/rss.xml
+++ b/layouts/_default/rss.xml
@@ -1,2 +1 @@
-{{- $res := partial "rss" . }}
-{{- replace $res "{year}" now.Year 1 | safeHTML -}}
+{{- partial "rss" . }}
\ No newline at end of file
diff --git a/layouts/partials/footer/copyright.html b/layouts/partials/footer/copyright.html
index 94e155cb5..990c5f487 100644
--- a/layouts/partials/footer/copyright.html
+++ b/layouts/partials/footer/copyright.html
@@ -1,3 +1,3 @@
 <div class="copyright mb-2">
-  {{ replace .Site.Copyright "{year}" now.Year }}
+  {{- partial "helpers/copyright" . }}
 </div>
diff --git a/layouts/partials/helpers/copyright.html b/layouts/partials/helpers/copyright.html
new file mode 100644
index 000000000..7937a4c10
--- /dev/null
+++ b/layouts/partials/helpers/copyright.html
@@ -0,0 +1 @@
+{{ replace .Site.Copyright "{year}" now.Year }}
diff --git a/layouts/partials/rss.html b/layouts/partials/rss.html
index 5a11fe503..fbd719a4d 100644
--- a/layouts/partials/rss.html
+++ b/layouts/partials/rss.html
@@ -1 +1,41 @@
-{{- template "_internal/_default/rss.xml" . }}
+{{/* Source: https://github.com/gohugoio/hugo/blob/master/tpl/tplimpl/embedded/templates/_default/rss.xml */}}
+{{- $pctx := . -}}
+{{- if .IsHome -}}{{ $pctx = .Site }}{{- end -}}
+{{- $pages := slice -}}
+{{- if or $.IsHome $.IsSection -}}
+{{- $pages = $pctx.RegularPages -}}
+{{- else -}}
+{{- $pages = $pctx.Pages -}}
+{{- end -}}
+{{- $limit := .Site.Config.Services.RSS.Limit -}}
+{{- if ge $limit 1 -}}
+{{- $pages = $pages | first $limit -}}
+{{- end -}}
+{{- 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 -- 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}}
+    <copyright>{{- partial "helpers/copyright" . }}</copyright>{{ 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>{{ if default false $.Site.Params.feeds.contentAsDescription }}{{ .Content | html }}{{ else }}{{ .Summary | html }}{{ end }}</description>
+      {{- partial "rss/enclosure" . }}
+    </item>
+    {{ end }}
+  </channel>
+</rss>
diff --git a/layouts/partials/rss/enclosure.html b/layouts/partials/rss/enclosure.html
new file mode 100644
index 000000000..c7df7332c
--- /dev/null
+++ b/layouts/partials/rss/enclosure.html
@@ -0,0 +1,16 @@
+{{- if .Params.images }}
+  {{- $img := index .Params.images 0 }}
+  {{- $url := urls.Parse $img }}
+  {{- $filename := path.Join "static" $img }}
+  {{- if and (not $url.Scheme) (fileExists $filename) -}}
+    {{- $file := readFile $filename }}
+    {{- $imgConfig := imageConfig $filename }}
+    <enclosure url="{{ $img | absURL  }}" length="{{ len $file }}" type="image/{{ path.Ext $filename }}" />
+  {{- end -}}
+{{- else -}}
+  {{- $images := .Resources.ByType "image" -}}
+  {{- $featured := $images.GetMatch "*feature*" -}}
+  {{- with $featured -}}
+      <enclosure url="{{ $featured.Permalink }}" length="{{ len $featured.Content }}" type="{{ $featured.MediaType }}" />
+  {{- end -}}
+{{- end -}}