1#!/bin/sh 2# Copyright 1994 David C. Niemi. 3# Copyright 1997,2001,2002 Alain Knaff. 4# This file is part of mtools. 5# 6# Mtools is free software: you can redistribute it and/or modify 7# it under the terms of the GNU General Public License as published by 8# the Free Software Foundation, either version 3 of the License, or 9# (at your option) any later version. 10# 11# Mtools is distributed in the hope that it will be useful, 12# but WITHOUT ANY WARRANTY; without even the implied warranty of 13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14# GNU General Public License for more details. 15# 16# You should have received a copy of the GNU General Public License 17# along with Mtools. If not, see <http://www.gnu.org/licenses/>. 18# 19# tgz [destination [source...] ] 20# 21# Make a gzip'd tar archive $1 (or stdout) out of specified files 22# (or, if not specified, from everything in the current directory) 23# 24# Requires gzip in the user's path. 25# 26# Requires gnu tar (or something close) in the user's path 27# due to use of --exclude, --totals and -S. 28# 29# 1994/02/19 DCN Created 30# 1994/12/01 DCN Cleanup and major improvements 31# 32# Copyright (C) 1994 David C. Niemi (niemi@tuxers.net) 33# The author requires that any copies or derived works include this 34# copyright notice; no other restrictions are placed on its use. 35# 36 37set -e 38set -u 39 40Error () 41{ echo "Error: $0: ${@-}." >&2 42 exit 1 43} 44 45if [ $# = 0 ]; then 46 dest= 47 src=. 48 tar cvf - . | gzip -9v 49 exit 0 50elif [ $# = 1 ]; then 51 dest=$1 52 src=. 53else 54 dest=$1 55 shift 56 src="${@-}" 57fi 58 59case $dest in 60"" | . | .. | */ | */. | */.. ) 61 echo "Usage: $0: [destination [source...] ]" >&2 62 exit 1 63 ;; 64*.t?z | *.?z | *.z | *.Z | *.tz | *.tz? ) 65 ;; 66*) 67 dest=${dest}.tgz ## Add on .tgz as default suffix 68esac 69 70if [ -h "$dest" ]; then 71 Error "Destination file \"$dest\" already exists as a symbolic link" 72elif [ -f "$dest" ]; then 73 Error "Destination \"$dest\" already exists as a file" 74elif [ -d "$dest" ]; then 75 Error "Destination \"$dest\" already exists as a directory" 76fi 77if [ -z "$dest" -o "X$dest" = 'X-' ]; then 78 echo "Writing gzipp'd tar archive to standard output." >&2 79 tar cvfS - -- $src | gzip -9v 80else 81 echo "Writing gzip'd tar archive to \"$dest\"." >&2 82 tar -cvS --totals --exclude "$dest" -f - -- $src | gzip -9v > "$dest" 83 ls -l "$dest" >&2 84fi 85 86exit 0 87