JezK
Edit File: u7z
#! /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 7zz 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