ꦫꦣꦺꦤ꧀ꦄꦤ꧀ꦠꦱꦺꦤ

PATH: usr / libexec / mc / extfs.d

#! /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=""

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='^$....$-$..$-$..$ $..:..:..$'
	date_mc='\2-\3-\1 \4'
	size_re='............'
	$P7ZIP l "$1" | sed -n "s/$date_re D.... $size_re $size_re$.*$/drwxr-xr-x 1 $ugid 0 $date_mc \5/p;s/$date_re \..... $$size_re$ $size_re$.*$/-rw-r--r-- 1 $ugid \5 $date_mc \6/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

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