convert to atom feeds

gemlog.sh

@@ -21,58 +21,68 @@ make_globals() {
 	global_description="yet another tech gemlog"
 	global_url="gemini://nytpu.com/gemlog/" # link to base url of blog
 	global_author="nytpu"
+	global_author_email="alex@nytpu.com"
+	global_author_url="gemini://nytpu.com/"
 	global_license="CC by"
 
-	gemlog_feed="feed.rss" # filename of the rss feed
+	gemlog_feed="atom.xml" # filename of the atom feed
 	number_of_feed_articles="50" # number of posts in rss feed
 	feed_base_url="https://nytpu.com/files/" # base url that the feed is hosted at
 
 	index="index.gmi" # main page, not recommended to change
 
 	# don't change these
-	date_format_full="%a, %d %b %Y %H:%M:%S %z"
-	date_format_timestamp="%Y%m%d%H%M.%S"
+	gemlog_sh_link="https://tildegit.org/nytpu/gemlog.sh"
+	date_format_8601="+%Y-%m-%dT%H:%M:%S%:z"
 }
 
 get_post_title() {
 	cat "$1" | perl -lne 's/#{1,3}\s+(.*)/\1/ or next; print; exit'
 }
 
-# from bashblog (https://tildegit.org/team/bashblog)
-# bashblog is licensed under the gnu gplv3
-make_rss() {
-	echo "Making RSS"
+make_atom() {
+	echo "Making Atom"
 
-	rssfile="$gemlog_feed.$RANDOM"
-	while [[ -f $rssfile ]]; do rssfile="$gemlog_feed.$RANDOM"; done
+	atomfile="$gemlog_feed.$RANDOM"
+	while [[ -f $atomfile ]]; do atomfile="$gemlog_feed.$RANDOM"; done
 
 	{
-		pubdate=$(LC_ALL=C date +"$date_format_full")
-		echo '<?xml version="1.0" encoding="UTF-8" ?>'
-		echo '<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:dc="http://purl.org/dc/elements/1.1/">'
-		echo "<channel><title>$global_title</title><link>$global_url$index</link>"
-		echo "<description>$global_description</description><language>en</language>"
-		echo "<lastBuildDate>$pubdate</lastBuildDate>"
-		echo "<pubDate>$pubdate</pubDate>"
-		echo "<atom:link href=\"$feed_base_url$gemlog_feed\" rel=\"self\" type=\"application/rss+xml\" />"
+		pubdate=$(date "$date_format_8601")
+		cat << EOF
+<?xml version="1.0" encoding="utf-8"?>
+<feed xmlns="http://www.w3.org/2005/Atom">
 
+  <title>$global_title</title>
+  <subtitle>$global_description</subtitle>
+  <link rel='self' href='$feed_base_url$gemlog_feed'/>
+  <link rel='alternate' href='$global_url$index'/>
+  <updated>$pubdate</updated>
+  <author>
+    <name>$global_author</name>
+    <email>$global_author_email</email
+    <uri>$global_author_url</uri>
+  </author>
+  <id>$global_url</id>
+  <generator uri='$gemlog_sh_link'>gemlog.sh</generator>
+  <rights>© $global_author - $global_license</rights>
+EOF
 		n=0
 		while IFS='' read -r i; do
 			((n >= number_of_feed_articles)) && break
-			echo "<item><title>"
-			get_post_title "$i"
-			echo "</title><description>You need a gemini protocol client to view this post.&lt;br&gt;If you have one installed, click here to open the post: &lt;a href=\"$global_url${i#'./'}\"&gt;$global_url${i#'./'}&lt;/a&gt;</description><link>$global_url${i#'./'}</link>"
-			echo "<guid>$global_url${i#'./'}</guid>"
-			echo "<dc:creator>$global_author</dc:creator>"
-			echo "<pubDate>$(LC_ALL=C date -r "$i" +"$date_format_full")</pubDate></item>"
+			printf "\n  <entry>\n    <title>"
+			get_post_title "$i" | tr -d '\n'
+			printf "</title>\n    <id>$global_url${i#'./'}</id>\n"
+			printf "    <link rel='alternate' href='$global_url${i#'./'}'/>\n    <updated>"
+			echo "$i" | perl -ne '/^(\d{4}-\d{2}-\d{2}).*/; print $1' | date "$date_format_8601" -f - | tr -d '\n'
+			printf "</updated>\n    <summary>You need a gemini protocol client to view this post.&lt;br&gt;If you have one installed, click here to open the post: &lt;a href=\"$global_url${i#'./'}\"&gt;$global_url${i#'./'}&lt;/a&gt;</summary>\n  </entry>\n"
 
 			n=$(( n + 1 ))
-		done < <(ls -r ./[[:digit:]]*.gmi)
+		done < <(ls -r [[:digit:]]*.gmi)
 
-		echo '</channel></rss>'
-	} 3>&1 >"$rssfile"
+		printf '</feed>'
+	} 3>&1 >"$atomfile"
 
-	mv "$rssfile" "$gemlog_feed"
+	mv "$atomfile" "$gemlog_feed"
 	chmod 644 "$gemlog_feed"
 }
 
@@ -123,7 +133,7 @@ toot() {
 }
 
 make_globals
-make_rss
+make_atom
 build_entries
 toot