Fix spacing

snapshots.sh was somehow inadvertently written with a mix of spaces and tabs
for indentation. Retabbed with four-space tabs.

1 files changed, 113 insertions, 113 deletions

diff --git a/snapshots.sh b/snapshots.sh
index 8bdb161..3f60bd6 100755
--- a/snapshots.sh
+++ b/snapshots.sh
@@ -19,9 +19,9 @@
 # At least one of the following options must be provided to specify an
 # operation to perform:
 #
-#	-c	create snapshot(s)
-#	-p	prune snapshots
-#	-l	list snapshots
+#   -c  create snapshot(s)
+#   -p  prune snapshots
+#   -l  list snapshots
 #
 # If the -c or -p option is specified, at least one dataset must be specified
 # as well.
@@ -38,17 +38,17 @@
 #
 # Usage: snapshots.sh [-cplrnvh] [-t tag] [-k num] [dataset ...]"
 #
-#	-c			create snapshot(s) (requires -t)
-#	-p			prune snapshots (requires -t and -k)
-#	-l			list snapshots
-#	-r			recursively create, prune, or list snapshots
-#	-n			dry run: print commands that would be executed, but do not
-#				actually modify data
-#	-v			verbose mode
-#	-h			print usage
-#	-k num		keep *num* snapshots for each dataset, including any newly
-#				created snapshots
-#	-t tag		use *tag* as the snapshot name prefix
+#   -c          create snapshot(s) (requires -t)
+#   -p          prune snapshots (requires -t and -k)
+#   -l          list snapshots
+#   -r          recursively create, prune, or list snapshots
+#   -n          dry run: print commands that would be executed, but do not
+#               actually modify data
+#   -v          verbose mode
+#   -h          print usage
+#   -k num      keep *num* snapshots for each dataset, including any newly
+#               created snapshots
+#   -t tag      use *tag* as the snapshot name prefix
 
 set -e
 
@@ -62,136 +62,136 @@ prune=
 list=
 
 usage() {
-	printf "usage: %s [-cplrnvh] [-t tag] [-k num] [dataset ...]\n" "$0"
+    printf "usage: %s [-cplrnvh] [-t tag] [-k num] [dataset ...]\n" "$0"
 }
 
 check_args() {
-	if [ -z "$create" ] && [ -z "$prune" ] && [ -z "$list" ]; then
-		printf "At least one of -c, -p, and -l must be specified.\n"
-		usage
-		exit 1
-	fi
-
-	if [ "$#" -eq 0 ] && { [ -n "$create" ] || [ -n "$prune" ]; }; then
-		printf "At least one dataset must be specified\n"
-		usage
-		exit 1
-	fi
-
-	if { [ -n "$create" ] || [ -n "$prune" ]; } && [ -z "$tag" ]; then
-		printf "Missing -t option\n"
-		usage
-		exit 1
-	fi
-
-	if [ -n "$prune" ] && [ -z "$keep" ]; then
-		printf "Missing -k option\n"
-		usage
-		exit 1
-	fi
-
-	if [ -z "$prune" ] && [ -n "$keep" ]; then
-		printf "\-k option is only valid with -p\n"
-		usage
-		exit 1
-	fi
+    if [ -z "$create" ] && [ -z "$prune" ] && [ -z "$list" ]; then
+        printf "At least one of -c, -p, and -l must be specified.\n"
+        usage
+        exit 1
+    fi
+
+    if [ "$#" -eq 0 ] && { [ -n "$create" ] || [ -n "$prune" ]; }; then
+        printf "At least one dataset must be specified\n"
+        usage
+        exit 1
+    fi
+
+    if { [ -n "$create" ] || [ -n "$prune" ]; } && [ -z "$tag" ]; then
+        printf "Missing -t option\n"
+        usage
+        exit 1
+    fi
+
+    if [ -n "$prune" ] && [ -z "$keep" ]; then
+        printf "Missing -k option\n"
+        usage
+        exit 1
+    fi
+
+    if [ -z "$prune" ] && [ -n "$keep" ]; then
+        printf "\-k option is only valid with -p\n"
+        usage
+        exit 1
+    fi
 }
 
 create_snapshots() {
-	create_cmd='zfs snapshot'
-	if [ -n "$recursive" ]; then
-		create_cmd="$create_cmd -r"
-	fi
-	readonly create_cmd
-
-	for dataset in "$@"; do
-		# FreeBSD's date -I option uses a "+00:00" suffix rather than "Z", and
-		# the + character is illegal in snapshot names, so we have to specify
-		# the format manually.
-		cmd="$create_cmd ${dataset}@${tag}-$(date -z utc +%Y-%m-%dT%H:%M:%SZ)"
-
-		if [ -n "$dry_run" ] || [ -n "$verbose" ]; then
-			printf "%s\n" "$cmd"
-		fi
-
-		if [ -z "$dry_run" ]; then
-			$cmd
-		fi
-	done
+    create_cmd='zfs snapshot'
+    if [ -n "$recursive" ]; then
+        create_cmd="$create_cmd -r"
+    fi
+    readonly create_cmd
+
+    for dataset in "$@"; do
+        # FreeBSD's date -I option uses a "+00:00" suffix rather than "Z", and
+        # the + character is illegal in snapshot names, so we have to specify
+        # the format manually.
+        cmd="$create_cmd ${dataset}@${tag}-$(date -z utc +%Y-%m-%dT%H:%M:%SZ)"
+
+        if [ -n "$dry_run" ] || [ -n "$verbose" ]; then
+            printf "%s\n" "$cmd"
+        fi
+
+        if [ -z "$dry_run" ]; then
+            $cmd
+        fi
+    done
 }
 
 prune_snapshots() {
-	for dataset in "$@"; do
-		if [ -n "$recursive" ]; then
-			for filesystem in $(zfs list -t filesystem -o name -H -r "$dataset"); do
-				prune_fs "$filesystem"
-			done
-		else
-			prune_fs "$dataset"
-		fi
-	done
+    for dataset in "$@"; do
+        if [ -n "$recursive" ]; then
+            for filesystem in $(zfs list -t filesystem -o name -H -r "$dataset"); do
+                prune_fs "$filesystem"
+            done
+        else
+            prune_fs "$dataset"
+        fi
+    done
 }
 
 # Selectively destroys old snapshots for the filesystem specified by $1.
 # Behavior is controlled by the global variables $tag, $keep, $dry_run, and
 # $verbose.
 prune_fs() {
-	snapshots=$(zfs list -t snapshot -o name -S name -H "$1")
-	to_delete=$(printf "%s\n" "$snapshots" | grep "@${tag}-" | tail -n +"$((keep + 1))")
-	for s in $to_delete; do
-		cmd="zfs destroy $s"
-		if [ -n "$dry_run" ] || [ -n "$verbose" ]; then
-			printf "%s\n" "$cmd"
-		fi
-
-		if [ -z "$dry_run" ]; then
-			$cmd
-		fi
-	done
+    snapshots=$(zfs list -t snapshot -o name -S name -H "$1")
+    to_delete=$(printf "%s\n" "$snapshots" | grep "@${tag}-" | tail -n +"$((keep + 1))")
+    for s in $to_delete; do
+        cmd="zfs destroy $s"
+        if [ -n "$dry_run" ] || [ -n "$verbose" ]; then
+            printf "%s\n" "$cmd"
+        fi
+
+        if [ -z "$dry_run" ]; then
+            $cmd
+        fi
+    done
 }
 
 list_snapshots() {
-	cmd="zfs list"
-	if [ -n "$recursive" ]; then
-		cmd="$cmd -r"
-	fi
-	snapshots=$($cmd -t snapshot -o name -s name -H "$@")
-
-	if [ -n "$tag" ]; then
-		printf "%s\n" "$snapshots" | grep "@${tag}-"
-	else
-		printf "%s\n" "$snapshots"
-	fi
+    cmd="zfs list"
+    if [ -n "$recursive" ]; then
+        cmd="$cmd -r"
+    fi
+    snapshots=$($cmd -t snapshot -o name -s name -H "$@")
+
+    if [ -n "$tag" ]; then
+        printf "%s\n" "$snapshots" | grep "@${tag}-"
+    else
+        printf "%s\n" "$snapshots"
+    fi
 }
 
 while getopts t:k:cplrknvh name; do
-	case $name in
-		t)	tag="$OPTARG";;
-		k)	keep="$OPTARG";;
-		c)	create=1;;
-		p)	prune=1;;
-		l)	list=1;;
-		r)	recursive=1;;
-		n)	dry_run=1;;
-		v)	verbose=1;;
-		h)	usage
-			exit 0;;
-		?)	usage
-			exit 2;;
-	esac
+    case $name in
+        t)  tag="$OPTARG";;
+        k)  keep="$OPTARG";;
+        c)  create=1;;
+        p)  prune=1;;
+        l)  list=1;;
+        r)  recursive=1;;
+        n)  dry_run=1;;
+        v)  verbose=1;;
+        h)  usage
+            exit 0;;
+        ?)  usage
+            exit 2;;
+    esac
 done
 shift $((OPTIND - 1))
 
 check_args "$@"
 
 if [ -n "$create" ]; then
-	create_snapshots "$@"
+    create_snapshots "$@"
 fi
 
 if [ -n "$prune" ]; then
-	prune_snapshots "$@"
+    prune_snapshots "$@"
 fi
 
 if [ -n "$list" ]; then
-	list_snapshots "$@"
+    list_snapshots "$@"
 fi