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Pipe support for newer lrzip, -S and -o are operational.

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George Makrydakis 2011-04-21 18:58:31 +03:00
parent 77f17857e7
commit 41f06466b0
1 changed files with 35 additions and 27 deletions
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62
lrztar
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@ -1,6 +1,6 @@
#!/bin/bash
# Copyright (C) George Makrydakis 2009, 2010
# Copyright (C) George Makrydakis 2009, 2010, 2011
# Copyright (C) Con Kolivas 2011
# A bash wrapper for Con Kolivas' excellent lrzip utility. For the time
@ -21,47 +21,55 @@
# 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 \
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 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:nlbgzUTN:p:vfodtVhHck x; do
[[ $x == [otV] ]] || ((v_$x=1)) &> /dev/null \
|| { printf "lrztar: invalid option for lrztar %s\n" "$x"; return 1; }
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; }
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 "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"
printf "%s\n" "$hv"
return
}
[[ ${s%/*} != $s ]] && i="${s%/*}/" || i="./"
((v_d)) && {
fname="$(basename "$s")"; tname="${fname%.lrz}";
! ((v_f)) && [[ -e ${tname%.tar} ]] && {
printf "lrztar: ${tname%.tar} already present, aborting\n"
i+="$(basename "$s")"
[[ -e $i ]] || {
printf "lrztar: file does not exist: %s\n" "$i"
return 1
}
[[ ${s%/*} != $s ]] && i="${s%/*}/" || i="./"
tname="$i$tname"
lrzip $p "$i$fname" -o - | tar x
lrzip $p "$i" | tar x
x=$?
} || {
fname="$(basename "$s")"; tname="$fname.tar"
[[ $fname == *.lrz ]] && {
printf "lrztar: $fname is already a .lrz file, aborting\n"
((v_o)) || p="$p -o $(basename "$s").tar.${vopt[v_S]}"
[[ -d $s ]] || {
printf "lrztar: directory does not exist: %s\n" "$s"
return 1
}
tar c "$s" | lrzip $p -o "$tname".lrz
tar c "$s" | lrzip $p
x=$?
}
! ((x)) && ((v_D)) && rm -rf "$s" &> /dev/null