http: adds blog/rss/xml

http/src/blog/rss.uppxml

@@ -0,0 +1,44 @@
+#!
+SITE_URL="$1"
+POSTS="$(ls --reverse "${SRC}/blog/" | grep "^[0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\}\(\.[0-9]\+\)\?\.blog.upphtml$")"
+NOW_RFC_822="$(TZ=UT date +"%a, %d %b %Y %H:%M:%S UT")"
+#!
+
+<rss version="2.0">
+
+<channel>
+<title>Joe Carstairs’ blog</title>
+<description>Short posts on random topics I find interesting</description>
+<link>${SITE_URL}/blog</link>
+<image>${SITE_URL}/images/headshot.webp</image>
+<language>en-GB</language>
+<pubDate>${NOW_RFC_822}</pubDate>
+
+#!
+for post in $POSTS; do
+POST_ID="${post::${#post}-13}"
+source "${SRC}/blog/${post}.args"
+DATE_PUBLISHED_RFC_822="$(TZ=UT date --date="${POST_ID}" +"%a, %d %b %Y %H:%M:%S UT")"
+#!
+<item>
+
+<title>${POST_TITLE}</title>
+<link>${SITE_URL}/blog/${POST_ID}</link>
+<guid isPermaLink='true'>${SITE_URL}/blog/${POST_ID}</guid>
+<pubDate>${DATE_PUBLISHED_RFC_822}</pubDate>
+<description>${POST_DESCRIPTION:-${POST_TITLE}}</description>
+<content:encoded>
+#!
+pp "${SRC}/blog/$post" "${SITE_URL}"
+#!
+</content:encoded>
+<author>Joe Carstairs</author>
+
+</item>
+#!
+done
+#!
+
+</channel>
+
+</rss>;