-
Notifications
You must be signed in to change notification settings - Fork 5
/
copy-from-time-machine.sh
103 lines (90 loc) · 2.69 KB
/
copy-from-time-machine.sh
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
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
#!/bin/bash
#
# Copy data from a Time Machine volume mounted on a Linux box.
#
# Usage: copy-from-time-machine.sh <source> <target>
#
# source: the source directory inside a time machine backup
# target: the target directory in which to copy the reconstructed
# directory trees. Created if it does not exists.
#
# Details:
#
# Time machine implements directory hard links by creating an
# empty file in place of the directory and storing in its
# "number of hard links" metadata attribute a pointer to a
# real directory in "/.HFS Private directory data^M" named
# "dir_$number".
#
# This script reconstructs a plain directory tree from this
# really ugly apple hack. Tested on a 650GB backup from OSX
# 10.6 mounted on a Linux 3.2.0-38 Ubuntu box. YMMV.
#
# MIT License.
#
# - vjt@openssl.it
#
self="$0"
source="$1"
target="$2"
hfsd="$3"
# set the locale. See https://unix.stackexchange.com/questions/87745/what-does-lc-all-c-do
export LC_ALL=C
# test if "stat" is responding as expected on this machine
read type <<<$(stat -c '%F' "$self")
if [ "$type" != "regular file" ]; then
echo "There are problems with your language settings. The 'stat' command must answer in English,
i.e. 'regular file' but it's answer was '$type'.
You may want to open an issue and ask for further assistance. Then, please paste this into the
issue:
$(locale)"
exit
fi
if [ -z "$source" -o -z "$target" ]; then
echo "Usage: $self <source> <target>"
exit -1
fi
if [ ! -d "$target" ]; then
mkdir -p "$target"
fi
if [ -z "$hfsd" ]; then
# Look for HFS Private directory data
sysname="$(echo -ne '.HFS+ Private Directory Data\r')"
hfsd=$source
while [ "$hfsd" != "/" -a ! -d "$hfsd/$sysname" ]; do
hfsd=`dirname "$hfsd"`;
done
if [ "$hfsd" = '/' ]; then
echo "HFS Private Directory Data not found in $source, is it an HFS filesystem?"
exit -2
else
echo "HFS Private Directory Data found in '$hfsd'"
hfsd="$hfsd/$sysname"
fi
fi
read hlnum type <<<$(stat -c '%h %F' "$source")
if [ "$type" = 'regular empty file' -a -d "$hfsd/dir_$hlnum" ]; then
source="$hfsd/dir_$hlnum"
echo "using source from HFS Private Directory Data"
fi
find "$source" -mindepth 1 -maxdepth 1 -and -not -name . -and -not -name .. | while read entry; do
dest="$target/`basename "$entry"`"
read hlnum type <<<$(stat -c '%h %F' "$entry")
case $type in
'regular file'|'symbolic link')
cp -van "$entry" "$dest"
;;
'directory')
# Recurse
$self "$entry" "$dest" "$hfsd"
;;
'regular empty file')
if [ -d "$hfsd/dir_$hlnum" ]; then
# Recurse
$self "$hfsd/dir_$hlnum" "$dest" "$hfsd"
else
echo "Skipping empty file $entry"
fi
;;
esac
done