blob: 11c3a213ce1279d303a6b3251ed1c16ee7e39725 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
#!/bin/sh
# TODO: rbup makes remote backup
btrfs_subvolume_backup()
{
TARGET=$1~$(date -r "$1" -I) || return
[ ! -e "$TARGET" ] || TARGET=$1~$(date -r "$1" -Im)
[ ! -e "$TARGET" ] || TARGET=$1~$(date -r "$1" -Is)
[ ! -e "$TARGET" ] || return
btrfs subvolume snapshot -r "$1" "$TARGET"
}
file_with_extension_backup()
{
local basename extension stamp date_format
date_format=%F_%H%M%S
basename=${1%.*}
extension=${1##*.}
stamp=$(date -r "$1" +"$date_format") || return
TARGET=$basename.$stamp.$extension
if [ ! -e "$TARGET" ]
then
cp --reflink=auto -T "$1" "$TARGET"
else
printf 'Warning: No backup was made, since an apparent backup exists here: "%s"\n' "$TARGET" >&2
return 0
fi
}
set -e
[ $# = 1 ]
if [ -d "$1" ]
then
if btrfs subvolume show "$1"
then
btrfs_subvolume_backup "$1"
exit
fi
elif [ -f "$1" ]
then
case "$1" in
*.*) file_with_extension_backup "$1"
exit
;;
esac
fi
echo 'Unimplemented' >&2
exit 1
|
