Ticket #3147: usqfs

File usqfs, 2.3 KB (added by Unknown, 9 years ago)

usqfs

Line 
1#! /bin/sh
2#
3# Squash file system
4#
5# tested to comply with unsquashfs version 4.2 (2011/02/28)'s output
6
7SQUASHFS=unsquashfs
8GAWK=gawk
9MV=mv
10RM=rm
11
12mcsqfs_list ()
13{
14  $SQUASHFS -d "" -lls "$1" | $GAWK '
15    {
16      if (NR < 5)
17        next
18      split($2, a, "/")
19      split($4, b, "-")
20      if (NF < 7)
21        printf "%10s   1 %8s %8s %8s %2s-%2s-%4s %5s %s\n", $1, a[1], a[2], $3, b[2], b[3], b[1], $5, $6
22      else
23        printf "%10s   1 %8s %8s %8s %2s-%2s-%4s %5s %s %s %s\n", $1, a[1], a[2], $3, b[2], b[3], b[1], $5, $6, $7, $8
24    }' 2>/dev/null
25}
26
27# permission user group         size date        time filename -  symlinktarget
28# lrwxrwxrwx root/root             2 2013-12-31 12:50 /foolink -> foo
29#         $1 a[1] a[2]            $3 b[1]b[2]b[3]  $5       $6 $7 $8
30
31# AAAAAAAAAA NNN OOOOOOOO GGGGGGGG SSSSSSSS DATETIME [PATH/]FILENAME [-> [PATH/]FILENAME[/]]]
32#
33# where (things in [] are optional):
34#
35# AAAAAAAAAA is the permission string like in ls -l
36# NNN        is the number of links
37# OOOOOOOO   is the owner (either UID or name)
38# GGGGGGGG   is the group (either GID or name)
39# SSSSSSSS   is the file size
40# FILENAME   is the filename
41# PATH       is the path from the archive's root without the leading slash (/)
42# DATETIME   has one of the following formats:
43#            Mon DD hh:mm, Mon DD YYYY, Mon DD YYYY hh:mm, MM-DD-YYYY hh:mm
44#
45#            where Mon is a three letter English month name, DD is day 1-31,
46#            MM is month 01-12, YYYY is four digit year, hh is hour and
47#            mm is minute.
48#
49# If the -> [PATH/]FILENAME part is present, it means:
50#
51# If permissions start with an l (ell), then it is the name that symlink
52# points to. (If this PATH starts with a MC vfs prefix, then it is a symlink
53# somewhere to the other virtual filesystem (if you want to specify path from
54# the local root, use local:/path_name instead of /path_name, since /path_name
55# means from root of the archive listed).
56#
57# If permissions do not start with l, but number of links is greater than one,
58# then it says that this file should be a hardlinked with the other file.
59
60mcsqfs_copyout ()
61{
62  $SQUASHFS "$1" "$2" >/dev/null
63  $MV squashfs-root/$2 $3
64  $RM -rf squashfs-root
65}
66
67umask 077
68
69cmd="$1"
70shift
71case "$cmd" in
72  list) mcsqfs_list "$@" ;;
73  copyout) mcsqfs_copyout "$@" ;;
74  *) exit 1 ;;
75esac
76exit 0