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Diffstat (limited to 'scripts/tgz')
| -rwxr-xr-x | scripts/tgz | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/scripts/tgz b/scripts/tgz new file mode 100755 index 0000000..8769ea6 --- /dev/null +++ b/scripts/tgz @@ -0,0 +1,86 @@ +#!/bin/sh +# Copyright 1994 David C. Niemi. +# Copyright 1997,2001,2002 Alain Knaff. +# This file is part of mtools. +# +# Mtools 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. +# +# Mtools 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 Mtools. If not, see <http://www.gnu.org/licenses/>. +# +# tgz [destination [source...] ] +# +# Make a gzip'd tar archive $1 (or stdout) out of specified files +# (or, if not specified, from everything in the current directory) +# +# Requires gzip in the user's path. +# +# Requires gnu tar (or something close) in the user's path +# due to use of --exclude, --totals and -S. +# +# 1994/02/19 DCN Created +# 1994/12/01 DCN Cleanup and major improvements +# +# Copyright (C) 1994 David C. Niemi (niemi@tuxers.net) +# The author requires that any copies or derived works include this +# copyright notice; no other restrictions are placed on its use. +# + +set -e +set -u + +Error () +{ echo "Error: $0: ${@-}." >&2 + exit 1 +} + +if [ $# = 0 ]; then + dest= + src=. + tar cvf - . | gzip -9v + exit 0 +elif [ $# = 1 ]; then + dest=$1 + src=. +else + dest=$1 + shift + src="${@-}" +fi + +case $dest in +"" | . | .. | */ | */. | */.. ) + echo "Usage: $0: [destination [source...] ]" >&2 + exit 1 + ;; +*.t?z | *.?z | *.z | *.Z | *.tz | *.tz? ) + ;; +*) + dest=${dest}.tgz ## Add on .tgz as default suffix +esac + +if [ -h "$dest" ]; then + Error "Destination file \"$dest\" already exists as a symbolic link" +elif [ -f "$dest" ]; then + Error "Destination \"$dest\" already exists as a file" +elif [ -d "$dest" ]; then + Error "Destination \"$dest\" already exists as a directory" +fi +if [ -z "$dest" -o "X$dest" = 'X-' ]; then + echo "Writing gzipp'd tar archive to standard output." >&2 + tar cvfS - -- $src | gzip -9v +else + echo "Writing gzip'd tar archive to \"$dest\"." >&2 + tar -cvS --totals --exclude "$dest" -f - -- $src | gzip -9v > "$dest" + ls -l "$dest" >&2 +fi + +exit 0 |