From 06a1b7aec736eaf1790a169eedaf659b4f5147aa Mon Sep 17 00:00:00 2001
From: Alice Gaudon <alice@gaudon.pro>
Date: Sun, 7 Mar 2021 15:59:22 +0100
Subject: [PATCH] zsc.sh: allow disabling snapshot creation

---
 zsc.sh | 27 ++++++++++++++++-----------
 1 file changed, 16 insertions(+), 11 deletions(-)

diff --git a/zsc.sh b/zsc.sh
index 2eece61..2d893ac 100755
--- a/zsc.sh
+++ b/zsc.sh
@@ -22,12 +22,13 @@ split_date() {
 
 handle_dataset() {
 	DATASET=$1
-	D=$2
-	W=$3
-	M=$4
-	Y=$5
+	AUTO_CREATE=$2
+	D=$3
+	W=$4
+	M=$5
+	Y=$6
 
-	PREFIX=$6
+	PREFIX=$7
 	if test -z "$PREFIX"; then
 		PREFIX="zsc-"
 	fi
@@ -75,25 +76,29 @@ handle_dataset() {
 	done
 
 	if [ $EXISTS -eq 0 ]; then
-		echo -e "Creating snapshot $DATASET@$PREFIX$DATE"
-		zfs snapshot $DATASET@$PREFIX$DATE
+		if [ $AUTO_CREATE == "true" ]; then
+			echo -e "Creating snapshot $DATASET@$PREFIX$DATE"
+			zfs snapshot $DATASET@$PREFIX$DATE
+		else
+			echo -e "Skip snapshot creation"
+		fi
 	fi
 }
 
-cat "$CONFIG_FILE" | while IFS=: read dataset recursive d w m y prefix; do
-	echo "| ##### Dataset: $dataset Recursive: $recursive Prefix: $prefix d: $d w: $w m: $m y: $y #####"
+cat "$CONFIG_FILE" | while IFS=: read dataset recursive auto_create d w m y prefix; do
+	echo "| ##### Dataset: $dataset Recursive: $recursive Auto create: $auto_create Prefix: $prefix d: $d w: $w m: $m y: $y #####"
 
 	if [ $recursive = "true" ]; then
 		SUBDATASETS=($(zfs list -o name | grep "$dataset/"))
 		echo -e "| Subdatasets: ${SUBDATASETS[@]}"
 		echo -e '|'
 		for p in "${SUBDATASETS[@]}"; do
-			handle_dataset $p $d $w $m $y $prefix | awk '{print "| " $0}'
+			handle_dataset $p $auto_create $d $w $m $y $prefix | awk '{print "| " $0}'
 			echo -e '|'
 		done
 	fi
 
-	handle_dataset $dataset $d $w $m $y $prefix | awk '{print "| " $0}'
+	handle_dataset $dataset $auto_create $d $w $m $y $prefix | awk '{print "| " $0}'
 
 	echo -e "----------------------------------------------------------------------"
 done