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#!/bin/bash
# Copyright (C) George Makrydakis 2009-2011,2013
# Copyright (C) Con Kolivas 2011-2012,2016
# 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 GNU/bash wrapper script for lrzip and tar input/output over directories.
Copyright (C) George Makrydakis 2009-2011,2013
Copyright (C) Con Kolivas 2011,2012
Usage : lrztar [lrzip options] <directory>
Result: a lrzip tarball is produced.
Extras: when an lrzip tarball is used with -d, -O, it gets extracted:
-h: will display this message.
-d: <path1> will decompress a <path1> lrzip tarball to current directory.
-O: <path2> will decompress a -d specified lrzip tarball to <path2> path.
-f: will force overwrites.
Notice:
- The input argument is always last, all options and their arguments precede.
- The -O flag is an option flag, goes before: (-O <somedir> <input arg>).
- You can use the remaining options of lrzip as they were.
- lrzuntar is equivalent to lrztar [options] -d <filename>.
- This script exists because of how lrzip behaves.
- Beware the -f flag, it stands for what it says...
"
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 v_O=0 v_m=0 x= i="$(pwd)"
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:O:S:DqL:nlbgzUm:TN:p:vfo:d:tVhHck x; do
[[ $x == [tV] ]] && {
printf "lrztar: invalid option for lrztar: %s\n" "$x";
return 1;
}
((v_$x=${#vopt[@]}))
vopt[${#vopt[@]}]="$OPTARG"
done
[[ $(basename "$0") == lrzuntar ]] \
&& { ((v_d=${#vopt[@]})); vopt[${#vopt[@]}]="$s"; }
{ ! (($#)) || ((v_h)); } && {
printf "%s\n" "$hv"
return
}
((v_d)) && {
[[ -e ${vopt[v_d]} ]] || {
printf "lrztar: file does not exist: %s\n" \
"${vopt[v_d]}"
return 1
}
i+="/${vopt[v_d]##*/}"
i="${i%.tar.*}"
if ((v_O)); then
for x in ${!p[@]};do
[[ ${p[x]} == "-O" ]] && {
p[x]=
p[$((x+1))]=
break;
}
done
i="${vopt[v_O]%/}"
x="${s##*/}"
if [[ -d "$i/${x%.tar.*}" ]] && ! ((v_f)); then
printf "lrztar: %s exists, use -f.\n" \
"$i/${x%.tar.*}"
return 1
fi
if ! [[ -d $i ]]; then
printf "lrztar: %s output path does not exist.\n" \
"$i"
return 1
fi
else
i="./"
fi
[ ! -z "$s" ] && {
lrzcat ${p[@]// /\\ } "$s" | tar x -C "$i"
x=$?
} || {
lrzcat ${p[@]// /\\ } | tar x -C "$i"
x=$?
}
} || {
if ((v_o)); then
! ((v_f)) && [[ -e ${vopt[$v_o]} ]] && {
printf "lrztar: %s exists, use -f to overwrite.\n" \
"${vopt[$v_o]}"
return 1
}
else
if ((v_O)); then
if ! [[ -d ${vopt[v_O]} ]]; then
printf "lrztar: %s output path does not exist.\n" \
"${vopt[v_O]}"
return 1
fi
for x in ${!p[@]};do
[[ ${p[x]} == "-O" ]] && {
p[x]=
i="${p[$((x+1))]%/}"
p[$((x+1))]=
s="${!#}"
break;
}
done
fi
s="${s%/}"
p+=(-o "$i/${s##*/}.tar.${vopt[v_S]}");
fi
! ((v_f)) && [[ -e $i/${s##*/}.tar.${vopt[v_S]} ]] && {
printf "lrztar: %s exists, use -f to overwrite\n" \
"$i/${s##*/}.tar.${vopt[v_S]}"
return 1
}
tar c "$s" | lrzip "${p[@]}"
x=$?
}
return $x
}
lrztar_local "${@}"