From 3c835904c2cde1d0d4a1860654c2c87d067825a7 Mon Sep 17 00:00:00 2001
From: Peter Sanchez <peter@netlandish.com>
Date: Mon, 24 Feb 2025 18:04:32 -0600
Subject: [PATCH] Updating webring data generation process to using hugo data
 files

---
 .gitignore                        |  2 +-
 go.mod                            | 18 ++++++
 go.sum                            | 18 ++++++
 layouts/_default/baseof.html      |  2 +-
 layouts/partials/webring-out.html | 21 +++++++
 openring.go                       | 98 +++++++++++++++++++++++++++++++
 6 files changed, 157 insertions(+), 2 deletions(-)
 create mode 100644 go.mod
 create mode 100644 go.sum
 create mode 100644 layouts/partials/webring-out.html
 create mode 100644 openring.go

diff --git a/.gitignore b/.gitignore
index c6ef245..9458e1f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,4 @@ resources/
 test-article.md
 .hugo_build.lock
 wring.sh
-layouts/partials/webring-out.html
+data/openring.toml
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..c11adc5
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,18 @@
+module git.code.netlandish.com/~netlandish/linktaco-blog
+
+go 1.23.4
+
+require (
+	github.com/BurntSushi/toml v1.4.0
+	github.com/SlyMarbo/rss v1.0.5
+	github.com/mattn/go-runewidth v0.0.16
+	github.com/microcosm-cc/bluemonday v1.0.27
+)
+
+require (
+	github.com/axgle/mahonia v0.0.0-20180208002826-3358181d7394 // indirect
+	github.com/aymerick/douceur v0.2.0 // indirect
+	github.com/gorilla/css v1.0.1 // indirect
+	github.com/rivo/uniseg v0.2.0 // indirect
+	golang.org/x/net v0.26.0 // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..ed496ac
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,18 @@
+github.com/BurntSushi/toml v1.4.0 h1:kuoIxZQy2WRRk1pttg9asf+WVv6tWQuBNVmK8+nqPr0=
+github.com/BurntSushi/toml v1.4.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
+github.com/SlyMarbo/rss v1.0.5 h1:DPcZ4aOXXHJ5yNLXY1q/57frIixMmAvTtLxDE3fsMEI=
+github.com/SlyMarbo/rss v1.0.5/go.mod h1:w6Bhn1BZs91q4OlEnJVZEUNRJmlbFmV7BkAlgCN8ofM=
+github.com/axgle/mahonia v0.0.0-20180208002826-3358181d7394 h1:OYA+5W64v3OgClL+IrOD63t4i/RW7RqrAVl9LTZ9UqQ=
+github.com/axgle/mahonia v0.0.0-20180208002826-3358181d7394/go.mod h1:Q8n74mJTIgjX4RBBcHnJ05h//6/k6foqmgE45jTQtxg=
+github.com/aymerick/douceur v0.2.0 h1:Mv+mAeH1Q+n9Fr+oyamOlAkUNPWPlA8PPGR0QAaYuPk=
+github.com/aymerick/douceur v0.2.0/go.mod h1:wlT5vV2O3h55X9m7iVYN0TBM0NH/MmbLnd30/FjWUq4=
+github.com/gorilla/css v1.0.1 h1:ntNaBIghp6JmvWnxbZKANoLyuXTPZ4cAMlo6RyhlbO8=
+github.com/gorilla/css v1.0.1/go.mod h1:BvnYkspnSzMmwRK+b8/xgNPLiIuNZr6vbZBTPQ2A3b0=
+github.com/mattn/go-runewidth v0.0.16 h1:E5ScNMtiwvlvB5paMFdw9p4kSQzbXFikJ5SQO6TULQc=
+github.com/mattn/go-runewidth v0.0.16/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
+github.com/microcosm-cc/bluemonday v1.0.27 h1:MpEUotklkwCSLeH+Qdx1VJgNqLlpY2KXwXFM08ygZfk=
+github.com/microcosm-cc/bluemonday v1.0.27/go.mod h1:jFi9vgW+H7c3V0lb6nR74Ib/DIB5OBs92Dimizgw2cA=
+github.com/rivo/uniseg v0.2.0 h1:S1pD9weZBuJdFmowNwbpi7BJ8TNftyUImj/0WQi72jY=
+github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
+golang.org/x/net v0.26.0 h1:soB7SVo0PWrY4vPW/+ay0jKDNScG2X9wFeYlXIvJsOQ=
+golang.org/x/net v0.26.0/go.mod h1:5YKkiSynbBIh3p6iOc/vibscux0x38BZDkn8sCUPxHE=
diff --git a/layouts/_default/baseof.html b/layouts/_default/baseof.html
index 3d841f0..2d19ffc 100644
--- a/layouts/_default/baseof.html
+++ b/layouts/_default/baseof.html
@@ -73,7 +73,7 @@
 
   <footer>
     {{ block "webring" . }}
-    {{ partial "webring-out.html" }}
+    {{ partial "webring-out.html" . }}
     {{ end }}
     <div class="footer">
       <span>Follow Us On:</span>
diff --git a/layouts/partials/webring-out.html b/layouts/partials/webring-out.html
new file mode 100644
index 0000000..77e2c84
--- /dev/null
+++ b/layouts/partials/webring-out.html
@@ -0,0 +1,21 @@
+{{ if and $.Site.Data.openring $.Site.Data.openring.Articles }}
+{{ $articles := $.Site.Data.openring.Articles }}
+    <section class="webring">
+      <h2>
+        Articles from blogs we recommend
+        <small class="attribution">Generated by <a href="https://git.sr.ht/~sircmpwn/openring">openring</a></small>
+      </h2>
+      <section class="articles xrow xis-center">
+        {{range $articles}}
+        <div class="card article">
+          <h4><a href="{{ .Link }}" target="_blank" rel="noopener">{{ .Title }}</a></h4>
+          <p>{{ .Summary }}</p>
+          <footer>
+            via <a href="{{ .SourceLink }}" target="_blank" rel="noopener">{{ .SourceTitle }}</a><br />
+	    {{ .Date.Format "Jan 2, 2006" }}
+          </footer>
+        </div>
+	{{ end }}
+      </section>
+    </section>
+{{ end }}
diff --git a/openring.go b/openring.go
new file mode 100644
index 0000000..0c37b37
--- /dev/null
+++ b/openring.go
@@ -0,0 +1,98 @@
+package main
+
+import (
+	"flag"
+	"html"
+	"log"
+	"net/url"
+	"os"
+	"sort"
+	"time"
+
+	"github.com/BurntSushi/toml"
+	"github.com/SlyMarbo/rss"
+	"github.com/mattn/go-runewidth"
+	"github.com/microcosm-cc/bluemonday"
+)
+
+type Article struct {
+	Date        time.Time
+	Link        string
+	SourceLink  string
+	SourceTitle string
+	Summary     string
+	Title       string
+}
+
+func main() {
+	var narticles, summaryLen int
+	var sources []*url.URL
+	flag.IntVar(&narticles, "n", 3, "number of output articles")
+	flag.IntVar(&summaryLen, "l", 256, "maximum summary length")
+	flag.Func("s", "source URL", func(s string) error {
+		u, err := url.Parse(s)
+		if err != nil {
+			return err
+		}
+		sources = append(sources, u)
+		return nil
+	})
+	flag.Parse()
+
+	if len(flag.Args()) > 0 {
+		log.Fatalf("Usage: %s [-s https://source.rss...] > out.toml", os.Args[0])
+	}
+
+	log.Println("Fetching feeds...")
+	var feeds []*rss.Feed
+	for _, source := range sources {
+		feed, err := rss.Fetch(source.String())
+		if err != nil {
+			log.Printf("Error fetching %s: %s", source.String(), err.Error())
+			continue
+		}
+		feeds = append(feeds, feed)
+		log.Printf("Fetched %s", feed.Title)
+	}
+	if len(feeds) == 0 {
+		log.Fatal("Expected at least one feed to successfully fetch")
+	}
+
+	policy := bluemonday.StrictPolicy()
+
+	var articles []Article
+	for _, feed := range feeds {
+		if len(feed.Items) == 0 {
+			log.Printf("Warning: feed %s has no items", feed.Title)
+			continue
+		}
+		item := feed.Items[0]
+		rawSummary := item.Summary
+		if len(rawSummary) == 0 {
+			rawSummary = html.UnescapeString(item.Content)
+		}
+		summary := runewidth.Truncate(
+			policy.Sanitize(rawSummary), summaryLen, "…")
+		articles = append(articles, Article{
+			Date:        item.Date,
+			SourceLink:  feed.Link,
+			SourceTitle: html.UnescapeString(feed.Title),
+			Summary:     summary,
+			Title:       html.UnescapeString(item.Title),
+			Link:        item.Link,
+		})
+	}
+	sort.Slice(articles, func(i, j int) bool {
+		return articles[i].Date.After(articles[j].Date)
+	})
+	if len(articles) < narticles {
+		narticles = len(articles)
+	}
+	articles = articles[:narticles]
+
+	if err := toml.NewEncoder(os.Stdout).Encode(struct {
+		Articles []Article
+	}{articles}); err != nil {
+		log.Fatal(err)
+	}
+}
-- 
2.45.3