From f07858bf7974747f99bfed11220c5b3bbc388f1e Mon Sep 17 00:00:00 2001
From: Clement <clementchiew95@disroot.org>
Date: Mon, 14 Mar 2022 01:51:08 +0800
Subject: [PATCH] Test RSS Support

---
 blog/.data.json          | 87 ++++++++++++++++++++++++++++++++++++++++
 blog/.rss.item.template  | 13 ++++++
 blog/.rss.template       | 15 +++++++
 scripts/build-website.sh | 44 ++++++++++++++++++--
 4 files changed, 156 insertions(+), 3 deletions(-)
 create mode 100644 blog/.data.json
 create mode 100644 blog/.rss.item.template
 create mode 100644 blog/.rss.template

diff --git a/blog/.data.json b/blog/.data.json
new file mode 100644
index 0000000..b48673b
--- /dev/null
+++ b/blog/.data.json
@@ -0,0 +1,87 @@
+{"data":[
+	{
+		"title":"",
+		"published_date":"",
+		"guid":""
+	},
+	{
+		"title":"The First Entry",
+		"published_date":"Thu, 20 Jun 2019 00:00:00 +0800",
+		"guid":""
+	},
+	{
+		"title":"The Migration",
+		"published_date":"Wed, 07 Aug 2019 00:00:00 +0800",
+		"guid":""
+	},
+	{
+		"title":"Configuring Dynamic DNS Records",
+		"published_date":"Thu, 29 Aug 2019 00:00:00 +0800",
+		"guid":""
+	},
+	{
+		"title":"? Matched Expression Does Not Match in Perl",
+		"published_date":"Wed, 18 Sep 2019 00:00:00 +0800",
+		"guid":""
+	},
+	{
+		"title":"The SBC Change",
+		"published_date":"Mon, 02 Mar 2020 00:00:00 +0800",
+		"guid":""
+	},
+	{
+		"title":"A Hit of Kubernetes",
+		"published_date":"Thu, 21 May 2020 00:00:00 +0800",
+		"guid":""
+	},
+	{
+		"title":"Optimizing Web Pages and File Sizes",
+		"published_date":"Fri, 22 May 2020 00:00:00 +0800",
+		"guid":""
+	},
+	{
+		"title":"Some Website Design and CSS",
+		"published_date":"Mon, 08 Jun 2020 00:00:00 +0800",
+		"guid":""
+	},
+	{
+		"title":"Git and Bash The Site",
+		"published_date":"Thu, 02 Jul 2020 00:00:00 +0800",
+		"guid":""
+	},
+	{
+		"title":"A Birth In The Family",
+		"published_date":"Sun, 26 Jul 2020 00:00:00 +0800",
+		"guid":""
+	},
+	{
+		"title":"Programming Anxiety",
+		"published_date":"Thu, 13 Aug 2020 00:00:00 +0800",
+		"guid":""
+	},
+	{
+		"title":"LXC and Friends",
+		"published_date":"Thu, 20 Aug 2020 00:00:00 +0800",
+		"guid":""
+	},
+	{
+		"title":"Migrating Everything to Proxmox - Part 1",
+		"published_date":"Mon, 30 Nov 2020 00:00:00 +0800",
+		"guid":""
+	},
+	{
+		"title":"A Brief Goodbye to CentOS",
+		"published_date":"Wed, 09 Dec 2020 00:00:00 +0800",
+		"guid":""
+	},
+	{
+		"title":"A Walk Along The Side",
+		"published_date":"Tue, 27 Jul 2021 00:00:00 +0800",
+		"guid":""
+	},
+	{
+		"title":"A Taste of Progress",
+		"published_date":"Sat, 23 Oct 2021 00:00:00 +0800",
+		"guid":""
+	}
+]}
diff --git a/blog/.rss.item.template b/blog/.rss.item.template
new file mode 100644
index 0000000..5d53253
--- /dev/null
+++ b/blog/.rss.item.template
@@ -0,0 +1,13 @@
+<item>
+<title>TITLE</title>
+<link>
+https://www.clementchiew.me/blog/blog-CURRENTINT
+</link>
+<description>
+$item
+</description>
+<pubDate>PUBDATE</pubDate>
+<guid>
+GUID
+</guid>
+</item>
diff --git a/blog/.rss.template b/blog/.rss.template
new file mode 100644
index 0000000..18f92c7
--- /dev/null
+++ b/blog/.rss.template
@@ -0,0 +1,15 @@
+<rss version="2.0">
+	<channel>
+		<title>My Little Spot</title>
+		<link>https://www.clementchiew.me.</link>
+		<description> </description>
+		<language>en-us</language>
+		<pubDate>$pubdate</pubDate>
+		<lastBuildDate>$pubdate</lastBuildDate>
+		<docs>https://www.clement.chiew/blog/rss</docs>
+		<generator>Some random bash scripts</generator>
+		<managingEditor>clementchiew@disroot.org</managingEditor>
+		<webMaster>clementchiew@disroot.org</webMaster>
+		$itemlist
+	</channel>
+</rss>
diff --git a/scripts/build-website.sh b/scripts/build-website.sh
index a2f47cc..37fa62d 100755
--- a/scripts/build-website.sh
+++ b/scripts/build-website.sh
@@ -29,16 +29,51 @@ do
 		fi
 
 		# replace placeholders
-		sed -i "s/PREVPADINT/$padintprev/g" "$tailname"
-		sed -i "s/NEXTPADINT/$padintnext/g" "$tailname"
+		sed "	s/PREVPADINT/$padintprev/g;
+			s/NEXTPADINT/$padintnext/g" filetail > "$tailname"
 	fi
 
-	# cat together
+	# cat together for blog page
 	if [[ -f $contentname ]] ;then
 		cat filehead "$contentname" "$tailname" "$quotename" > "$blogname"
 	fi
 done
 
+# compile items for rss
+cd ../blog || exit
+
+# get replace point in templates
+linereplace=$(grep -n '$itemlist' .rss.template | cut -f1 -d:)
+itemlinereplace=$(grep -n '$item' .rss.item.template | cut -f1 -d:)
+
+# build rss feed
+cat \
+<(head -n $(( linereplace -1 )) .rss.template) \
+<(
+	for ((i=1;i<10;i++))
+	do
+		itemnum=$(( CONTENTNUM - i ))
+		padint=$(printf %03d $itemnum)
+		title=$(jq '.data | .['"$padint"'].title' .data.json )
+		pubdate=$(jq '.data | .['"$padint"'].published_date' .data.json )
+		guid=$(jq '.data | .['"$padint"'].guid' .data.json )
+		cat \
+			<(head -n $(( itemlinereplace -1 )) .rss.item.template | 
+				sed "s/TITLE/$title/;
+				s/CURRENTINT/$padint/" 
+			) \
+			<(cat content-$padint quote-$padint | 
+				tidy -q -asxml | 
+				xq -cx '.html.body' ) \
+			<(tail -n +$(( itemlinereplace +1 )) .rss.item.template |
+				sed "s/PUBDATE/$pubdate/;
+				s/GUID/$guid/"
+			)
+	done
+) \
+<(tail -n +$(( linereplace +1 )) .rss.template) \
+> rss.xml
+
 # clean up non prod files, lock down permissions, and self-destruct
 cd ../blog || exit
 \rm filehead filetail content* quote* .blog.* tail*
@@ -46,3 +81,6 @@ cd ../ || exit
 \rm -rf .git scripts .index.html.* README.md Jenkinsfile
 find . -type f -exec chmod 600 {} \;
 find . -type d -exec chmod 700 {} \;
+
+
+