don't write empty categories to rss

config/_default/hugo.toml

@@ -1,7 +1,7 @@
 baseURL = "https://runtimeterror.dev"
 theme = "risotto"
 title = "runtimeterror"
-copyright = "© 2018-2023 [runtimeterror](https://runtimeterror.dev)"
+copyright = "© 2023 runtimeterror"
 paginate = 10
 languageCode = "en"
 DefaultContentLanguage = "en"

config/_default/params.toml

@@ -8,6 +8,11 @@ numberOfRelatedPosts = 5
 
 indexTitle = ".-. ..- -. - .. -- . - . .-. .-. --- .-."
 
+[author]
+  name = "John Bowdre"
+  email = "jbowdre@omg.lol"
+  username = "jbowdre"
+
 # Comments
 comments = true
 utterancesRepo = "jbowdre/site-comments"
@@ -19,11 +24,6 @@ analytics = true
 [theme]
 palette = "runtimeterror"
 
-[author]
-  name = "John Bowdre"
-  email = "jbowdre@omg.lol"
-  username = "jbowdre"
-
 # Sidebar: about/bio
 [about]
 title = "runtimeterror"

layouts/_default/rss.xml

@@ -11,27 +11,36 @@
 {{- $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">
+<rss version="2.0"
+  xmlns:atom="http://www.w3.org/2005/Atom"
+  xmlns:dc="http://purl.org/dc/elements/1.1/">
   <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}}{{ if not .Date.IsZero }}
+    <language>{{.}}</language>{{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 -}}
+    <image>
+      <url>{{ .Site.Params.fallBackOgImage | absURL }}</url>
+      <title>{{ if eq  .Title  .Site.Title }}{{ .Site.Title }}{{ else }}{{ with .Title }}{{.}} on {{ end }}{{ .Site.Title }}{{ end }}</title>
+      <link>{{ .Permalink }}</link>
+    </image>
     {{ range $pages }}
     <item>
-      <title>{{ .Title }}</title>
+      <title>{{ .Title | plainify }}</title>
       <link>{{ .Permalink }}</link>
       <pubDate>{{ .Date.Format "Mon, 02 Jan 2006 15:04:05 -0700" | safeHTML }}</pubDate>
-      {{ with .Site.Params.Author.name }}<dc:creator>{{.}}</dc:creator>{{end}}
+      {{ with .Site.Params.Author.name }}<dc:creator>{{.}}</dc:creator>{{ end }}
+      {{ with .Params.series }}<category>{{ . | lower }}</category>{{ end }}
+      {{ range (.GetTerms "tags") }}
+      <category>{{ .LinkTitle }}</category>{{ end }}
       <guid>{{ .Permalink }}</guid>
-      <description>
-        {{ .Content | html }}
-      </description>
+      <description>{{ .Summary | plainify }}</description>
     </item>
     {{ end }}
   </channel>

netlify.toml

@@ -2,7 +2,7 @@
   publish = "public"
 
 [build.environment]
-  HUGO_VERSION = "0.111.3"
+  HUGO_VERSION = "0.121.1"
 
 [context.production]
   command = """