themes/default/layouts/partials/web-ring: Avoid extra markup with feed function return

1 files changed, 248 insertions, 0 deletions

diff --git a/themes/default/layouts/partials/function-generate-feeds.html b/themes/default/layouts/partials/function-generate-feeds.html
new file mode 100644
index 0000000..e494596
--- /dev/null
+++ b/themes/default/layouts/partials/function-generate-feeds.html
@@ -0,0 +1,248 @@
+{{- $author := partial "function-authors-data.html" . -}}
+
+{{- $feeds := slice -}}
+
+{{- if $author.feeds.rss -}}
+  {{- range $key, $value := (seq 3) -}}
+    {{- range $author.feeds.rss -}}
+
+      {{- with resources.GetRemote . -}}
+        {{- with .Err -}}
+          {{- warnf "Feed fetch %s" . -}}
+        {{- end -}}
+      {{- end -}}
+
+      {{- with resources.GetRemote . | transform.Unmarshal -}}
+
+        {{- $content           := "" -}}
+        {{- $date              := now.Format "2006-01-02T15:04:05Z" -}}
+        {{- $description       := "No description found." -}}
+        {{- $enclosure         := "" -}}
+        {{- $imageLink         := "" -}}
+        {{- $link              := "https://example.com/link/" -}}
+        {{- $sourceDescription := "" -}}
+        {{- $sourceHome        := "" -}}
+        {{- $sourceLink        := "https://example.com/rss/" -}}
+        {{- $sourceTitle       := "No source title found" -}}
+        {{- $title             := "No Title Found" -}}
+
+        {{- with .channel -}}
+
+          {{- $sourceTitle       = .title -}}
+          {{- $sourceDescription = .description -}}
+
+          {{- if reflect.IsSlice .link -}}
+            {{- if reflect.IsMap (index .link 0) -}}
+              {{- $sourceLink = index (first 1 .link) 0 "-href" -}}
+              {{- $sourceHome = index (last 1 .link) 0 -}}
+            {{- else -}}
+              {{- $sourceLink = index .link 0 -}}
+            {{- end -}}
+          {{- else -}}
+            {{- $sourceLink = .link -}}
+          {{- end -}}
+
+          {{- with .image -}}
+            {{- $imageLink = .url -}}
+          {{- end -}}
+
+          {{- with .item -}}
+            {{- if reflect.IsMap . -}}
+                {{- $title = index . "title" -}}
+                {{- $link  = index . "link" -}}
+                {{- $date  = index . "pubDate" -}}
+            {{- else -}}
+              {{- range first $value . -}}
+                {{- $description = .description -}}
+                {{- $content     = .description -}}
+                {{- $title       = .title -}}
+                {{- $link        = .link -}}
+                {{- $date        = .pubDate -}}
+                {{- with .enclosure -}}
+                  {{- $enclosure = index . "-url" -}}
+                {{- end -}}
+              {{- end -}}
+            {{- end -}}
+          {{- end -}}
+
+          {{- if not $date -}}
+            {{- $date = .lastBuildDate -}}
+          {{- end -}}
+
+        {{- else -}}
+
+          {{- with .link -}}
+            {{- $sourceLink = index (index . 0) "-href" -}}
+          {{- end -}}
+
+          {{- with .subtitle -}}
+            {{- if reflect.IsMap . -}}
+              {{- $sourceDescription = index . "#text" -}}
+            {{- else -}}
+              {{- $sourceDescription = . -}}
+            {{- end -}}
+          {{- end -}}
+
+          {{- with .title -}}
+            {{- if reflect.IsMap . -}}
+              {{- $sourceTitle = index . "#text" -}}
+            {{- else -}}
+              {{- $sourceTitle = . -}}
+            {{- end -}}
+          {{- end -}}
+
+          {{- with .entry -}}
+            {{- range first $value . -}}
+              {{- $date = .updated -}}
+
+              {{- with .link -}}
+                {{- if reflect.IsMap . -}}
+                  {{- $link = index . "-href" -}}
+                {{- else -}}
+                  {{- if reflect.IsMap (index . 0) -}}
+                    {{- $link = index (index . 0) "-href" -}}
+                  {{- else -}}
+                    {{- $link = . -}}
+                  {{- end -}}
+                {{- end -}}
+              {{- end -}}
+
+              {{- with .title -}}
+                {{- if reflect.IsMap . -}}
+                  {{- $title = index . "#text" -}}
+                {{- else -}}
+                  {{- $title = . -}}
+                {{- end -}}
+              {{- end -}}
+
+              {{- with .content -}}
+                {{- $content = index . "#text" -}}
+              {{- end -}}
+
+              {{- with .summary -}}
+                {{- $description = index . "#text" -}}
+              {{- end -}}
+
+              {{- with .group -}}
+                {{- $description = .description -}}
+                {{- $content     = index .content "#text" -}}
+                {{- $enclosure   = index .thumbnail "-url" -}}
+              {{- end -}}
+            {{- end -}}
+          {{- end -}}
+
+        {{- end -}}
+
+        {{- $sourceDomain := ($sourceLink | plainify | html | htmlUnescape | urls.Parse).Host -}}
+
+        {{- /* Replace invalid time zones. */ -}}
+        {{- $date = replaceRE "G[0-9]+T" "UTC" $date -}}
+
+        {{- /* If missing seconds split and try again. */ -}}
+        {{- if lt (len (split $date ":")) 3 -}}
+          {{- $date = delimit (first 3 (after 1 (split $date " "))) " " -}}
+        {{- end -}}
+
+        {{- /* Try to complete enclosure relative links. */ -}}
+        {{- if and (not ($enclosure | urls.Parse).Host) (not ($link | urls.Parse).Host) -}}
+         {{- $enclosure = print "http://" $sourceDomain $link -}}
+        {{- end -}}
+
+        {{- /* Try to complete link relative links. */ -}}
+        {{- if not ($link | urls.Parse).Host -}}
+         {{- $link = print "http://" $sourceDomain $link -}}
+        {{- end -}}
+
+        {{-
+          $feeds = $feeds | append (dict
+            "FeedContent"           ($content | plainify | html | htmlUnescape)
+            "FeedContentShort"      (delimit (first 2 (split ($content | plainify | html | htmlUnescape) "\n")) " " | truncate 250)
+            "FeedDate"              ($date | plainify | html | htmlUnescape | time.Format "January 2, 2006")
+            "FeedDateTime"          ($date | plainify | html | htmlUnescape | time.Format "2006-01-02T15:04:05Z")
+            "FeedDateTitle"         ($date | plainify | html | htmlUnescape | time.Format "Monday, January 2 2006 at 15:04:05 MST")
+            "FeedDescription"       ($description | plainify | html | htmlUnescape)
+            "FeedDescriptionShort"  (delimit (first 2 (split ($description | plainify | html | htmlUnescape) "\n")) " " | truncate 250)
+            "FeedEnclosure"         ($enclosure | plainify | html | htmlUnescape)
+            "FeedImageLink"         ($imageLink | plainify | html | htmlUnescape)
+            "FeedLink"              ($link | plainify | html | htmlUnescape)
+            "FeedName"              (delimit ((delimit (first 2 (split ($sourceTitle | plainify | html | htmlUnescape) " ")) " ") | findRE "^([^.|?|!|\n|\"|]+)") " " | replaceRE "[^a-zA-Z ]" "")
+            "FeedSourceDescription" ($sourceDescription | plainify | html | htmlUnescape)
+            "FeedSourceDomain"      ($sourceDomain | plainify | html | htmlUnescape)
+            "FeedSourceLink"        ($sourceLink | plainify | html | htmlUnescape)
+            "FeedSourceHome"        ($sourceHome | plainify | html | htmlUnescape)
+            "FeedSourceTitle"       ($sourceTitle | plainify | html | htmlUnescape)
+            "FeedTitle"             ($title | plainify | html | htmlUnescape)
+          )
+        -}}
+
+      {{- end -}}
+    {{- end -}}
+  {{- end -}}
+
+  {{- range $feeds -}}
+
+    {{- $name := .FeedName -}}
+    {{- $domain := .FeedSourceDomain -}}
+
+    {{- $faviconDomain :=
+      (print
+        "https://t1.gstatic.com/faviconV2?client=SOCIAL&type=FAVICON&fallback_opts=TYPE,SIZE,URL&url="
+        "http://"
+        .FeedSourceDomain
+        "&size=64"
+      )
+    -}}
+
+    {{- with .FeedImageLink -}}
+      {{- $faviconDomain = . -}}
+      {{- $domain = $name | humanize | urlize -}}
+    {{- end -}}
+
+    {{- $imageSource := partial "function-caches-images.html"
+      (dict
+        "Source" $faviconDomain
+        "Fit"    "160x160"
+        "Target" (print (partial "function-paths.html" "media") "/")
+        "Copy"   (print (partial "function-paths.html" "media") "/favicon." $domain ".png")
+      )
+    -}}
+
+    {{- $template := resources.Get "templates/markdown-feed.yaml" -}}
+    {{- $file := print (delimit (first 8 (split (.FeedTitle | urlize) "-")) "-" | humanize | urlize) "-" (.FeedLink | sha256 | truncate 8 "") -}}
+    {{- $file = partial "function-strip-urlchars.html" $file -}}
+    {{- $path := print "/data/generates/content/" $author.user "/feeds/" $file ".md" -}}
+
+    {{- $content := .FeedContentShort -}}
+
+    {{- if (gt (len .FeedTitle) (len $content)) -}}
+     {{- $content = .FeedTitle -}}
+    {{- end -}}
+
+    {{- if (gt (len .FeedDescriptionShort) (len .FeedTitle)) -}}
+     {{- $content = .FeedDescriptionShort -}}
+    {{- end -}}
+
+    {{- $markdown := resources.ExecuteAsTemplate
+       $path
+       (dict
+        "author"      $author.user
+        "content"     (or $content "No content found.")
+        "date"        .FeedDateTime
+        "description" (or .FeedSourceDescription .FeedSourceTitle "No source description found.")
+        "domain"      .FeedSourceDomain
+        "enclosure"   .FeedEnclosure
+        "favicon"     $imageSource.RelPermalink
+        "home"        .FeedSourceHome
+        "link"        .FeedLink
+        "markdown"    (strings.TrimLeft "/" $path)
+        "name"        .FeedName
+        "self"        (print $author.user "/feeds/" $file "/")
+        "tags"        "[rss]"
+       )
+       $template
+    -}}
+    {{- $writeToFile := $markdown.Permalink -}}
+  {{- end -}}
+{{- end -}}
+
+{{- return $feeds -}}