/
lrztar
executable file
·71 lines (64 loc) · 2.98 KB
/
lrztar
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#!/bin/bash
# Copyright (C) George Makrydakis 2009, 2010
# Copyright (C) Con Kolivas 2010
# A bash wrapper for Con Kolivas' excellent lrzip utility. For the time
# being, lrzip does not like pipes, so we had to do this. It is kind of
# self - documenting, spawned out of a test tube bash shell script.
# This program 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 2 of the License, or
# (at your option) any later version.
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
function lrztar_local() {
local p="${@:1:$(($#-1))}" s="${!#}" tname= fname= \
v_w=0 v_O=0 v_S=0 v_D=0 v_p=0 v_q=0 v_L=0 \
v_n=0 v_l=0 v_b=0 v_g=0 v_z=0 v_M=0 v_U=0 \
v_T=0 v_N=0 v_v=0 v_f=0 v_d=0 v_h=0 x= i=
OPTERR=0
trap '[[ -z $tname ]] || rm -rf "$tname" &> /dev/null' 1 2 3 15
which tar &> /dev/null || { printf "lrztar: no tar in your path\n"; return 1; }
which lrzip &> /dev/null || { printf "lrztar: no lrzip in your path\n"; return 1; }
while getopts w:O:S:DqL:nlbgzMUT:N:p:vfodtVh x; do
[[ $x == [otV] ]] || ((v_$x=1)) &> /dev/null \
|| { printf "lrztar: invalid option for lrztar %s\n" "$x"; return 1; }
done
[[ $(basename "$0") == lrzuntar ]] \
&& { v_d=1; p="-d $p"; }
{ ! (($#)) || ((v_h)); } && {
printf "lrztar wrapper for compressing/decompressing whole directories with lrzip.\n"
printf "usage: lrztar [lrzip options] <directory> will compress directory to directory.tar.lrz\n"
printf "lrztar -d [lrzip options] <directory.tar.lrz> will extract directory from directory.tar.lrz\n"
printf "lrzuntar [lrzip options] <directory.tar.lrz> will extract directory from directory.tar.lrz\n"
printf "lrz[un]tar -h will display this help message\n"
printf "lrzip -h will display lrzip options\n"
return
}
((v_d)) && {
fname="$(basename "$s")"; tname="${fname%.lrz}";
! ((v_f)) && [[ -e ${tname%.tar} ]] && {
printf "lrztar: ${tname%.tar} already present, aborting\n"
return 1
}
[[ ${s%/*} != $s ]] && i="${s%/*}/" || i="./"
tname="$i$tname"
lrzip $p "$i$fname" && tar xf "$tname"
x=$?
} || {
fname="$(basename "$s")"; tname="$fname.tar"
[[ $fname == *.lrz ]] && {
printf "lrztar: $fname is already a .lrz file, aborting\n"
return 1
}
tar cf "$tname" "$s" && lrzip $p "$tname"
x=$?
}
rm -rf "$tname" &> /dev/null
! ((x)) && ((v_D)) && rm -rf "$s" &> /dev/null
return $x
}
lrztar_local "${@}"