From 9aa0727af29e31b19889b8f4d92f675650949bb6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nicol=C3=A1s=20Ortega=20Froysa?=
 <naortega@themusicinnoise.net>
Date: Thu, 29 Oct 2020 18:40:14 +0100
Subject: [PATCH] Don't process unmodified files.

---
 TODO    |  1 -
 sssg.sh | 26 ++++++++++++++------------
 2 files changed, 14 insertions(+), 13 deletions(-)

diff --git a/TODO b/TODO
index 776b411..36e15de 100644
--- a/TODO
+++ b/TODO
@@ -1,5 +1,4 @@
 ============
 *** TODO ***
 ============
- - File date comparison to avoid unnecessary processing
  - Manner to loop through files in directory
diff --git a/sssg.sh b/sssg.sh
index f4b9c77..1354b8b 100755
--- a/sssg.sh
+++ b/sssg.sh
@@ -65,7 +65,6 @@ function parse {
 
 function generate {
 	# create directories
-	rm -rf _site
 	for i in $(find . -type d -not -path "./_templates" \
 		-not -path "./_site" -not -path "./_templates/*" \
 		-not -path "./_site/*")
@@ -81,18 +80,21 @@ function generate {
 		"./_site/*")
 	do
 		file_path=${i:2}
-		if [ ${file_path: -4} == ".htm" ] ||
-			[ ${file_path: -4} == ".HTM" ] ||
-			[ ${file_path: -5} == ".html" ] ||
-			[ ${file_path: -5} == ".HTML" ]
+		if [ "$file_path" -nt "_site/$file_path" ]
 		then
-			# parse HTML/CSS files
-			parse $file_path
-		else
-			# files that don't need parsing
-			echo -n "Copying file to _site/$file_path ... "
-			cp $file_path _site/$file_path
-			echo "OK"
+			if [ ${file_path: -4} == ".htm" ] ||
+				[ ${file_path: -4} == ".HTM" ] ||
+				[ ${file_path: -5} == ".html" ] ||
+				[ ${file_path: -5} == ".HTML" ]
+			then
+				# parse HTML/CSS files
+				parse $file_path
+			else
+				# files that don't need parsing
+				echo -n "Copying file to _site/$file_path ... "
+				cp $file_path _site/$file_path
+				echo "OK"
+			fi
 		fi
 	done
 }