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#!/bin/bash
# Copyright (C) George Makrydakis 2009-2011
# Copyright (C) Con Kolivas 2011-2012
# 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 hv="lrztar wrapper for compressing/decompressing \
whole directories with lrzip.
lrztar [lrzip options] <directory> will compress directory \
to directory.tar.lrz
lrztar -d [lrzip options] <directory.tar.lrz> will extract directory \
from directory.tar.lrz
lrzuntar [lrzip options] <directory.tar.lrz> will extract directory \
from directory.tar.lrz
lrz[un]tar -h will display this help message
lrzip -h will display lrzip options"
local p=( "${@:1:$(($#-1))}" ) s="${!#}" vopt=("lrz") \
v_w=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_U=0 \
v_T=0 v_N=0 v_v=0 v_f=0 v_d=0 v_h=0 \
v_H=0 v_c=0 v_k=0 v_o=0 x= i=
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; }
which lrzcat &> /dev/null \
|| { printf "lrztar: no lrzcat in your path\n"; return 1; }
while getopts w:OS:DqL:nlbgzUTN:p:vfo:dtVhHck x; do
[[ $x == [OtV] ]] && {
printf "lrztar: invalid option for lrztar: %s\n" "$x";
return 1;
}
((v_$x=${#vopt[@]}))
[ $x == S ] && vopt[${#vopt[@]}]="$OPTARG"
done
[[ $(basename "$0") == lrzuntar ]] \
&& { v_d=1; p=( -d "${p[@]}"); }
{ ! (($#)) || ((v_h)); } && {
printf "%s\n" "$hv"
return
}
[[ ${s%/*} != $s ]] && i="${s%/*}/" || i="./"
((v_d)) && {
s="${s%/}"
s="${s##*/}"
i+="$s"
s="${s%.tar.lrz}"
[[ -e $i ]] || {
printf "lrztar: file does not exist: %s\n" "$i"
return 1
}
! ((v_f)) && [[ -e $s ]] && {
printf "lrztar: $s exists, will not overwrite without -f option\n"
return 1
}
lrzcat "${p[@]}" "$i" | tar x
x=$?
} || {
((v_o)) || {
s="${s%/}";
p+=( -o "${s##*/}.tar.${vopt[v_S]}");
}
[[ -d $s ]] || {
printf "lrztar: directory does not exist: %s\n" "$s"
return 1
}
tar c "$s" | lrzip "${p[@]}"
x=$?
}
! ((x)) && ((v_D)) && rm -rf "$s" &> /dev/null
return $x
}
lrztar_local "${@}"
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