Репозиторий Sisyphus
Последнее обновление: 18 ноября 2019 | Пакетов: 17519 | Посещений: 15782716
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Репозитории ALT
S:1.10-alt1
5.1: 1.3.5-alt6
4.1: 1.3.5-alt4.M40.1
4.0: 1.3.5-alt4.M40.1
3.0: 1.3.5-alt2
+updates:1.3.5-alt2.M30.1
www.altlinux.org/Changes

Другие репозитории
Upstream:1.3.12

Группа :: Архивирование/Сжатие
Пакет: gzip

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#!/bin/sh
#
# zme
# Copyright (C) 2000,2005 Dmitry V. Levin <ldv@altlinux.org>
#
# 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 2 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, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#

printmsg()
{
printf %s\\n "${0##*/}: $*" >&2
}

sizeof_file()
{
find "$1" -maxdepth 0 -path "$1" -printf '%s'
}

compress_file()
{
local src dst size_src size_dst file_src file_dst

file_src="$1" && shift
src="$(readlink -ev "$file_src")" || return

if [ -e "$FILE_TMP" -o -L "$FILE_TMP" ]; then
printmsg "$FILE_TMP already exists, skipping"
return 1
fi

file_dst="$FILE_TMP$SUFFIX"
if [ -e "$file_dst" -o -L "$file_dst" ]; then
printmsg "$file_dst already exists, skipping"
return 1
fi

printf %s "$file_src -> $FILE_TMP "

size_src="$(sizeof_file "$src")"
if ! [ "$size_src" -ge 0 ] 2>/dev/null; then
printmsg "$file_src: failed to determine file size"
return 1
fi

if ! $UNARCHIVE -- "$file_src" >"$FILE_TMP"; then
printmsg "$file_src: failed to uncompress"
rm -f -- "$FILE_TMP"
return 1
fi

printf %s "-> $file_dst "

if ! $ARCHIVE -- "$FILE_TMP"; then
printmsg "$FILE_TMP: failed to compress"
rm -f -- "$FILE_TMP"
return 1
fi

if ! dst="$(readlink -ev "$file_dst")"; then
rm -f -- "$FILE_TMP"
return 1
fi

touch -r "$file_src" -- "$file_dst"

size_dst="$(sizeof_file "$dst")"
if ! [ "$size_src" -ge 0 ] 2>/dev/null; then
printmsg "$file_dst: failed to determine file size"
rm -f -- "$file_dst"
return 1
fi

if [ "$size_src" -le "$size_dst" ]; then
if [ "$size_src" = "$size_dst" ]; then
printf %s "has the same size as original ($size_src)"
else
printf %s "is bigger than original ($size_src -> $size_dst)"
fi
echo " SKIP"
rm -f -- "$file_dst"
else
printf %s "($size_src -> $size_dst)"
echo " OK"
rm -f -- "$file_src"
fi
}

compress_gzip()
{
UNARCHIVE=bzcat
ARCHIVE="gzip -9nf"
SUFFIX=".gz"
compress_file "$@" || rc=1
}

compress_bzip2()
{
UNARCHIVE=zcat
ARCHIVE="bzip2 -9f"
SUFFIX=".bz2"
compress_file "$@" || rc=1
}

rc=0
while [ -n "$1" ]; do
case "$1" in
*.tgz)
FILE_TMP="${1%.tgz}.tar"
compress_bzip2 "$1"
;;
*.tbz2)
FILE_TMP="${1%.tbz2}.tar"
compress_gzip "$1"
;;
*.gz)
FILE_TMP="${1%.gz}"
compress_bzip2 "$1"
;;
*.Z)
FILE_TMP="${1%.Z}"
compress_bzip2 "$1"
;;
*.bz2)
FILE_TMP="${1%.bz2}"
compress_gzip "$1"
;;
*) printmsg "$1: unknown file suffix, ignored"
rc=1
;;
esac
shift
done

exit $rc
 
дизайн и разработка: Vladimir Lettiev aka crux © 2004-2005, Andrew Avramenko aka liks © 2007-2008
текущий майнтейнер: Michael Shigorin