mirror of
https://github.com/ckolivas/lrzip.git
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73 lines
3 KiB
Bash
Executable file
73 lines
3 KiB
Bash
Executable file
#!/bin/bash
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# Copyright (C) George Makrydakis 2009, 2010
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# Copyright (C) Con Kolivas 2011
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# A bash wrapper for Con Kolivas' excellent lrzip utility. For the time
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# being, lrzip does not like pipes, so we had to do this. It is kind of
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# self - documenting, spawned out of a test tube bash shell script.
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# This program 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 2 of the License, or
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# (at your option) any later version.
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# This program 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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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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function lrztar_local() {
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local p="${@:1:$(($#-1))}" s="${!#}" tname= fname= \
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v_w=0 v_O=0 v_S=0 v_D=0 v_p=0 v_q=0 v_L=0 \
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v_n=0 v_l=0 v_b=0 v_g=0 v_z=0 v_U=0 \
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v_T=0 v_N=0 v_v=0 v_f=0 v_d=0 v_h=0 \
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v_H=0 v_c=0 v_k=0 x= i=
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OPTERR=0
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trap '[[ -z $tname ]] || rm -rf "$tname" &> /dev/null' 1 2 3 15
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which tar &> /dev/null || { printf "lrztar: no tar in your path\n"; return 1; }
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which lrzip &> /dev/null || { printf "lrztar: no lrzip in your path\n"; return 1; }
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while getopts w:O:S:DqL:nlbgzUTN:p:vfodtVhHck x; do
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[[ $x == [otV] ]] || ((v_$x=1)) &> /dev/null \
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|| { printf "lrztar: invalid option for lrztar %s\n" "$x"; return 1; }
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done
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[[ $(basename "$0") == lrzuntar ]] \
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&& { v_d=1; p="-d $p"; }
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{ ! (($#)) || ((v_h)); } && {
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printf "lrztar wrapper for compressing/decompressing whole directories with lrzip.\n"
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printf "usage: lrztar [lrzip options] <directory> will compress directory to directory.tar.lrz\n"
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printf "lrztar -d [lrzip options] <directory.tar.lrz> will extract directory from directory.tar.lrz\n"
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printf "lrzuntar [lrzip options] <directory.tar.lrz> will extract directory from directory.tar.lrz\n"
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printf "lrz[un]tar -h will display this help message\n"
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printf "lrzip -h will display lrzip options\n"
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return
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}
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((v_d)) && {
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fname="$(basename "$s")"; tname="${fname%.lrz}";
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! ((v_f)) && [[ -e ${tname%.tar} ]] && {
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printf "lrztar: ${tname%.tar} already present, aborting\n"
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return 1
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}
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[[ ${s%/*} != $s ]] && i="${s%/*}/" || i="./"
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tname="$i$tname"
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lrzip $p "$i$fname" && tar xf "$tname"
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x=$?
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} || {
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fname="$(basename "$s")"; tname="$fname.tar"
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[[ $fname == *.lrz ]] && {
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printf "lrztar: $fname is already a .lrz file, aborting\n"
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return 1
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}
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tar cf "$tname" "$s" && lrzip $p "$tname"
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x=$?
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}
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rm -rf "$tname" &> /dev/null
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! ((x)) && ((v_D)) && rm -rf "$s" &> /dev/null
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return $x
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}
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lrztar_local "${@}"
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