From 8b4ffe3349e9254155561c1468014f74bdb50409 Mon Sep 17 00:00:00 2001
From: Alice Gaudon <alice@gaudon.pro>
Date: Fri, 8 Jan 2021 14:57:35 +0100
Subject: [PATCH] zfs_snapshot_cron.sh: add custom prefix support

---
 zfs_snapshot_cron.sh | 23 ++++++++++++++++-------
 1 file changed, 16 insertions(+), 7 deletions(-)

diff --git a/zfs_snapshot_cron.sh b/zfs_snapshot_cron.sh
index ad7fa83..557dfaa 100755
--- a/zfs_snapshot_cron.sh
+++ b/zfs_snapshot_cron.sh
@@ -1,6 +1,5 @@
 #!/bin/bash
 
-PREFIX="zsc-"
 CONFIG_FILE="$HOME/.zfs_snapshot_cron"
 
 FORMAT='+%Y-%m-%d'
@@ -16,7 +15,17 @@ handle_pool() {
 	W=$3
 	M=$4
 	Y=$5
-	echo "--- $POOL --- $D $W $M $Y"
+
+	PREFIX=$6
+	if test -z "$PREFIX"; then
+		PREFIX="zsc-"
+	fi
+
+	if test "!no_prefix!" = "$PREFIX"; then
+		PREFIX=""
+	fi
+
+	echo "--- $POOL --- $D $W $M $Y $PREFIX"
 
 	SNAPSHOTS=($(zfs list -t snapshot -o name | grep "$POOL@$PREFIX" | sort -r))
 	echo "Snapshots: ${#SNAPSHOTS[@]}"
@@ -30,7 +39,7 @@ handle_pool() {
 			EXISTS=1
 		fi
 
-		scomp=($(split_date "$sdate") $(date -d "$sdate" "+%u %W"))
+		scomp=($(split_date "$sdate") $(date -d "$stripped_date" "+%u %W"))
 
 		echo -n "${scomp[3]} ${scomp[4]} | "
 		
@@ -60,20 +69,20 @@ handle_pool() {
 	fi
 }
 
-cat "$CONFIG_FILE" | while IFS=: read pool recursive d w m y; do
-	echo "| ##### Pool: $pool Recursive: $recursive d: $d w: $w m: $m y: $y #####"
+cat "$CONFIG_FILE" | while IFS=: read pool recursive d w m y prefix; do
+	echo "| ##### Pool: $pool Recursive: $recursive Prefix: $prefix d: $d w: $w m: $m y: $y #####"
 
 	if [ $recursive = "true" ]; then
 		SUBPOOLS=($(zfs list -o name | grep "$pool/"))
 		echo -e "Subpools: ${SUBPOOLS[@]}"
 		echo -e '|'
 		for p in "${SUBPOOLS[@]}"; do
-			handle_pool $p $d $w $m $y | awk '{print "| " $0}'
+			handle_pool $p $d $w $m $y $prefix | awk '{print "| " $0}'
 			echo -e '|'
 		done
 	fi
 
-	handle_pool $pool $d $w $m $y | awk '{print "| " $0}'
+	handle_pool $pool $d $w $m $y $prefix | awk '{print "| " $0}'
 
 	echo -e "----------------------------------------------------------------------"
 done