87 lines
2.2 KiB
Bash
Executable File
87 lines
2.2 KiB
Bash
Executable File
#!/bin/sh
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# Copyright 1994 David C. Niemi.
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# Copyright 1997,2001,2002 Alain Knaff.
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# This file is part of mtools.
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#
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# Mtools is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Mtools is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Mtools. If not, see <http://www.gnu.org/licenses/>.
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#
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# tgz [destination [source...] ]
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#
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# Make a gzip'd tar archive $1 (or stdout) out of specified files
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# (or, if not specified, from everything in the current directory)
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#
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# Requires gzip in the user's path.
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#
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# Requires gnu tar (or something close) in the user's path
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# due to use of --exclude, --totals and -S.
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#
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# 1994/02/19 DCN Created
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# 1994/12/01 DCN Cleanup and major improvements
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#
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# Copyright (C) 1994 David C. Niemi (niemi@tuxers.net)
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# The author requires that any copies or derived works include this
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# copyright notice; no other restrictions are placed on its use.
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#
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set -e
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set -u
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Error ()
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{ echo "Error: $0: ${@-}." >&2
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exit 1
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}
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if [ $# = 0 ]; then
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dest=
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src=.
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tar cvf - . | gzip -9v
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exit 0
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elif [ $# = 1 ]; then
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dest=$1
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src=.
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else
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dest=$1
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shift
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src="${@-}"
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fi
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case $dest in
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"" | . | .. | */ | */. | */.. )
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echo "Usage: $0: [destination [source...] ]" >&2
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exit 1
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;;
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*.t?z | *.?z | *.z | *.Z | *.tz | *.tz? )
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;;
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*)
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dest=${dest}.tgz ## Add on .tgz as default suffix
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esac
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if [ -h "$dest" ]; then
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Error "Destination file \"$dest\" already exists as a symbolic link"
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elif [ -f "$dest" ]; then
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Error "Destination \"$dest\" already exists as a file"
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elif [ -d "$dest" ]; then
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Error "Destination \"$dest\" already exists as a directory"
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fi
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if [ -z "$dest" -o "X$dest" = 'X-' ]; then
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echo "Writing gzipp'd tar archive to standard output." >&2
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tar cvfS - -- $src | gzip -9v
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else
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echo "Writing gzip'd tar archive to \"$dest\"." >&2
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tar -cvS --totals --exclude "$dest" -f - -- $src | gzip -9v > "$dest"
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ls -l "$dest" >&2
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fi
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exit 0
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