/usr/lib/mc/extfs.d/u7z is in mc 3:4.8.19-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 | #! /bin/sh
#
# extfs support for p7zip
# Written by Pavel Roskin <proski@gnu.org>
# Some Bugfixes/workarounds by Sergiy Niskorodov <sgh@mail.zp.ua>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
P7ZIP=`which 7z 2>/dev/null` || P7ZIP=`which 7za 2>/dev/null` || P7ZIP=`which 7zr 2>/dev/null` || P7ZIP=""
# Let the test framework hook in:
P7ZIP=${MC_TEST_EXTFS_LIST_CMD:-$P7ZIP}
STAT=${MC_TEST_EXTFS_U7Z_STAT:-stat}
mcu7zip_list ()
{
# Symlinks are not shown - no idea how to distinguish them
# Read-only files are not shown as such - it's rarely useful
ugid="`id -nu` `id -ng`"
date_re='^\(....\)-\(..\)-\(..\) \(..:..:..\)' # 19 chars.
date_mc='\2-\3-\1 \4'
empty_date_re='^ \{19\}'
size_re='............' # 12 chars.
empty_size_re=' \{12\}'
zero_size=' 0'
# archive entries can have no datetime info, 7z will use archive file datetime
date_archive=`$STAT -c %y "$1" 2>/dev/null | sed -n "s/${date_re}.*/${date_mc}/p" 2>/dev/null`
[ "${date_archive}"x = x ] && date_archive=`ls -lan "$1" 2>/dev/null | awk '{print $6, $7, $8}' 2>/dev/null`
[ "${date_archive}"x = x ] && date_archive="01-01-1970 00:00:00"
$P7ZIP l "$1" | sed -n "
# If the uncompressed size is missing, we copy the compressed size onto it.
#
# But first, if the compressed size is missing too, set it to zero:
s/^\(.\{19\} [D.]....\) $empty_size_re $empty_size_re/\1 $zero_size $zero_size/
# Next, do the copy:
s/^\(.\{19\} [D.]....\) $empty_size_re \($size_re\)/\1 \2 \2/
#
# (We use '.\{19\}' as the date may be missing. It may give false positives
# but we don't mind: the printing commands that follow use strict patterns.).
# Handle directories.
s/$date_re D.... $size_re $size_re\(.*\)/drwxr-xr-x 1 $ugid 0 $date_mc \5/p
s/$empty_date_re D.... $size_re $size_re\(.*\)/drwxr-xr-x 1 $ugid 0 $date_archive \1/p
# Handle normal files.
s/$date_re \..... \($size_re\) $size_re\(.*\)/-rw-r--r-- 1 $ugid \5 $date_mc \6/p
s/$empty_date_re \..... \($size_re\) $size_re\(.*\)/-rw-r--r-- 1 $ugid \1 $date_archive \2/p
"
}
mcu7zip_copyout ()
{
#first we check if we have old p7zip archive with prefix ./ in filename
$P7ZIP l "$1" "$2" | grep -q "0 files, 0 folders" && \
EXFNAME='*./'"$2" || EXFNAME="$2"
$P7ZIP e -so "$1" "$EXFNAME" > "$3" 2>/dev/null
}
mcu7zip_copyin ()
{
$P7ZIP a -si"$2" "$1" <"$3" >/dev/null 2>&1
}
mcu7zip_mkdir ()
{
dir=`mktemp -d "${MC_TMPDIR:-/tmp}/mctmpdir-u7z.XXXXXX"` || exit 1
mkdir -p "$dir"/"$2"
$P7ZIP a -w"$dir" "$1" "$dir"/"$2" >/dev/null 2>&1
rm -rf "$dir"
}
mcu7zip_rm ()
{
# NOTE: Version 4.20 fails to delete files in subdirectories
#first we check if we have old p7zip archive with prefix ./ in filename
$P7ZIP l "$1" "$2" | grep -q "0 files, 0 folders" && \
EXFNAME='*./'"$2" || EXFNAME="$2"
$P7ZIP d "$1" "$EXFNAME" 2>&1 | grep -q E_NOTIMPL > /dev/null 2>&1 && \
{ printf "Function not implemented...\n7z cannot delete from solid archive." >&2 ; exit 1 ; }
}
mcu7zip_rmdir ()
{
#first we check if we have old p7zip archive with prefix ./ in filename
$P7ZIP l "$1" "$2" | grep -q "0 files, 0 folders" && \
EXFNAME='*./'"$2" || EXFNAME="$2"
$P7ZIP d "$1" "$EXFNAME"/ 2>&1 | grep -q E_NOTIMPL > /dev/null 2>&1 && \
{ printf "Function not implemented...\n7z cannot delete from solid archive." >&2 ; exit 1 ; }
}
# override any locale for dates
LC_DATE=C
export LC_DATE
umask 077
if [ -z "$P7ZIP" ]; then
echo "Error: could not find p7zip (looked for 7z, 7za and 7zr)" >&2
exit 1
fi
cmd="$1"
shift
case "$cmd" in
list) mcu7zip_list "$@" | sort -k 8 ;;
copyout) mcu7zip_copyout "$@" ;;
copyin) mcu7zip_copyin "$@" ;;
mkdir) mcu7zip_mkdir "$@" ;;
rm) mcu7zip_rm "$@" ;;
rmdir) mcu7zip_rmdir "$@" ;;
*) exit 1 ;;
esac
exit 0
|