| 1 | #!/bin/sh
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| 2 |
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| 3 | # Copyright (C) 1998, 2002, 2006, 2007 Free Software Foundation
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| 4 |
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| 5 | # The original version for gzip was written by Paul Eggert.
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| 6 | # Modified for XZ Utils by Andrew Dudman and Lasse Collin.
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| 7 |
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| 8 | # This program is free software; you can redistribute it and/or modify
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| 9 | # it under the terms of the GNU General Public License as published by
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| 10 | # the Free Software Foundation; either version 2 of the License, or
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| 11 | # (at your option) any later version.
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| 12 |
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| 13 | # This program is distributed in the hope that it will be useful,
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| 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 16 | # GNU General Public License for more details.
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| 17 |
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| 18 | #SET_PATH - This line is a placeholder to ease patching this script.
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| 19 |
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| 20 | # Instead of unsetting XZ_OPT, just make sure that xz will use file format
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| 21 | # autodetection. This way memory usage limit and thread limit can be
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| 22 | # specified via XZ_OPT.
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| 23 | xz='xz --format=auto'
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| 24 |
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| 25 | version='xzless (XZ Utils) 5.0.3'
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| 26 |
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| 27 | usage="Usage: ${0##*/} [OPTION]... [FILE]...
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| 28 | Like 'less', but operate on the uncompressed contents of xz compressed FILEs.
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| 29 |
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| 30 | Options are the same as for 'less'.
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| 31 |
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| 32 | Report bugs to <lasse.collin@tukaani.org>."
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| 33 |
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| 34 | case $1 in
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| 35 | --help) echo "$usage" || exit 2; exit;;
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| 36 | --version) echo "$version" || exit 2; exit;;
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| 37 | esac
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| 38 |
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| 39 | if test "${LESSMETACHARS+set}" != set; then
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| 40 | # Work around a bug in less 394 and earlier;
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| 41 | # it mishandles the metacharacters '$%=~'.
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| 42 | space=' '
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| 43 | tab=' '
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| 44 | nl='
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| 45 | '
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| 46 | LESSMETACHARS="$space$tab$nl'"';*?"()<>[|&^`#\$%=~'
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| 47 | fi
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| 48 |
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| 49 | if test "$(less -V | { read ver && echo ${ver#less }; })" -ge 429; then
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| 50 | # less 429 or later: LESSOPEN pipe will be used on
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| 51 | # standard input if $LESSOPEN begins with |-.
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| 52 | LESSOPEN="|-$xz -cdfq -- %s"
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| 53 | else
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| 54 | LESSOPEN="|$xz -cdfq -- %s"
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| 55 | fi
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| 56 | export LESSMETACHARS LESSOPEN
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| 57 |
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| 58 | exec less "$@"
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