From 8b0bef099c9ef6edd3749936a8f35667c6f0c35f Mon Sep 17 00:00:00 2001
From: Syndamia <kamen@syndamia.com>
Date: Tue, 17 Oct 2023 22:04:51 +0300
Subject: [p1,s2] Implemented sitemap generation

---
 csg | 34 ++++++++++++++++++++++++++++++----
 1 file changed, 30 insertions(+), 4 deletions(-)

diff --git a/csg b/csg
index ad2d41c..bde30dc 100755
--- a/csg
+++ b/csg
@@ -5,7 +5,7 @@
 
 csg_help() {
 	echo 'Usage: csg [-h | -? | --help]
-       csg <source_dir> <destination_dir> <title_format> [<scripts_dir>]
+       csg <source_dir> <destination_dir> <title_format> <base_url> [<scripts_dir>]
 
 Options:
   -h, -?, --help    Print this help message (also available when given no
@@ -17,6 +17,9 @@ Arguments:
   <title_format>       Format string for page title
                        Accepts any text or HTML, & is replaced with contents
                        title (first h1 header).
+  <base_url>           Base URL of your website (scheme + authority), without
+                       trailing "/", used for sitemap generation.
+                       Example: https://google.com
   <scripts_dir>        Optional, folder which contains awk script for editing of
                        generated webpages.
 
@@ -58,8 +61,11 @@ DESTINATION="$(realpath "$2")"
 	&& csg_help 2
 
 TITLEF="$3"
+URL="$4"
+[ -z "$URL" ] && echo "[Error] <base_url> cannot be an empty string!" \
+	&& csg_help 3
 
-AWKSCRIPTS="$4"
+AWKSCRIPTS="$5"
 [ -n "$AWKSCRIPTS" -a ! -d "$AWKSCRIPTS" ] && echo "[Error] $AWKSCRIPTS (<scripts_dir>) isn't a directory or doesn't exist!" \
 	&& csg_help 1
 
@@ -85,7 +91,7 @@ then
 	CSG_AWK='gawk --posix'
 else
 	echo '[Error] Couldn'\''t find an awk implementation!'
-	csg_help 3
+	csg_help 4
 fi
 
 if [ -n "$CSG_MD_TO_HTML" ]
@@ -99,7 +105,7 @@ then
 		--parse-no-autolink"
 else
 	echo '[Error] Couldn'\''t find a Markdown to HTML convertion program!'
-	csg_help 3
+	csg_help 4
 fi
 
 ### Preprocessing 4
@@ -278,7 +284,27 @@ do
 	do
 		[ "${scr_recip[$i]}" != "${scr_recip[$i]/${file%md}html/}" ] && scripts+=" -f ${scr_path[$i]} "
 	done
+
 	transform-file "$file" "$scripts" &
 done < <(find "$DESTINATION" -type f -name "*.md")
 wait
+
+overwriteLine "[Stage 2] Generating sitemap"
+  # This cannot really be done while transforming files, since you could have static .html pages
+
+echo '<?xml version="1.0" encoding="UTF-8"?>
+<urlset
+xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9
+http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd"
+xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">' > "$DESTINATION/sitemap.xml"
+date="$(date +%Y-%m-%d)"
+
+while read -r file
+do
+	echo "<url><loc>$URL${file#$DESTINATION}</loc><lastmod>$date</lastmod><priority>1.0</priority></url>" >> "$DESTINATION/sitemap.xml"
+done < <(find "$DESTINATION" -type f -name "*.html")
+
+echo '</urlset>' >> "$DESTINATION/sitemap.xml"
+
 endTimer "[Stage 2] Done"
-- 
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