From 60acce89ee1d1331a522b2fe13e6ac2a24993da8 Mon Sep 17 00:00:00 2001
From: fernao <fernao@disroot.org>
Date: Mon, 3 Jul 2023 18:15:27 -0300
Subject: [PATCH] Update 'etc-init.d-swapfile'

---
 etc-init.d-swapfile | 31 +++++++++++++++++++++++--------
 1 file changed, 23 insertions(+), 8 deletions(-)

diff --git a/etc-init.d-swapfile b/etc-init.d-swapfile
index 24980a5..d0b0b38 100644
--- a/etc-init.d-swapfile
+++ b/etc-init.d-swapfile
@@ -1,14 +1,20 @@
 #!/bin/sh /etc/rc.common
-# (C) 2016 - 2023 Fernao Vellozo
+# (C) 2016 - 2023 Fernao Vellozo | fernao@disroot.org
 # This is free software under the terms of GPLv3
+# v 1.0.5
 
+# Service priority in the system
 START=90
 
 EXTRA_COMMANDS="status create"
 EXTRA_HELP="	status 	Check service status
 	create 	Create a swapfile"
+# if version is 19 or lower, use spaces on the help menu above
+# if version 21 or higher, use tabs
+#
+# overlay partition is the default value
+# it's better to change it and use other place to store the swapfile
 
-# default value, it'd be better to use other place than overlay
 SWPATH="/overlay/swapfile"
 
 boot() {
@@ -57,19 +63,28 @@ stop() {
 create() {
 	RAMTOTAL=`fgrep MemTotal /proc/meminfo | awk '{print $2}'`
 	SWAPTOTAL=`fgrep SwapTotal /proc/meminfo | awk '{print $2}'`
-	OVERLAYSIZE=`df | grep overlayfs | awk '{print $3}'`
-	if [ $OVERLAYSIZE < $RAMTOTAL ]; then
+	OVERLAYSIZE=`df | grep overlayfs | awk '{print $4}'`
+
+	if [ "$OVERLAYSIZE" -lt "$RAMTOTAL" ]; then
 		echo "ERROR: Not enough storage for a swapfile, quitting..."
 		exit 1
 	elif [ $SWAPTOTAL != 0 ]; then                      
 		echo "ERROR: Swap already in use, quitting..."
+		exit 1
+	elif [ -f $SWPATH ]; then
+		echo "ERROR: File already exists, quitting..."
+		exit 1
 	else
-		dd if=/dev/zero of=$SWFILE bs=1024 count=$RAMTOTAL
-		mkswap -L SWAPFILE $SWFILE
-		chmod 600 $SWFILE
+		echo "Creating Swap File of "$RAMTOTAL
+		echo "Please wait..."
+		dd if=/dev/zero of=$SWPATH bs=1024 count=$RAMTOTAL
+		mkswap -L SWAPFILE $SWPATH
+		chmod 600 $SWPATH
 		/etc/init.d/swapfile enable
 		logger "SwapFile created"
-		echo "SwapFile successfully created, enabled to run after the next reboot"
+		echo "SwapFile successfully created and enabled to run after the next reboot"
+		/etc/init.d/swapfile start
+		echo; free
 	fi
 }