diff options
Diffstat (limited to 'beagle/debian-rfs/bin/znew')
| -rwxr-xr-x | beagle/debian-rfs/bin/znew | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/beagle/debian-rfs/bin/znew b/beagle/debian-rfs/bin/znew new file mode 100755 index 0000000..b46ab17 --- /dev/null +++ b/beagle/debian-rfs/bin/znew @@ -0,0 +1,183 @@ +#!/bin/bash + +# Copyright (C) 1998, 2002, 2004, 2007 Free Software Foundation +# Copyright (C) 1993 Jean-loup Gailly + +# 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, write to the Free Software Foundation, Inc., +# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +PATH="${GZIP_BINDIR-'/bin'}:$PATH"; export PATH + +version="znew (gzip) 1.3.12 +Copyright (C) 2007 Free Software Foundation, Inc. +This is free software. You may redistribute copies of it under the terms of +the GNU General Public License <http://www.gnu.org/licenses/gpl.html>. +There is NO WARRANTY, to the extent permitted by law. + +Written by Jean-loup Gailly." + +usage="Usage: $0 [OPTION]... [FILE]... +Recompress files from .Z (compress) format to .gz (gzip) format. + +Options: + + -f Force recompression even if a .gz file already exists. + -t Test the new files before deleting originals. + -v Verbose; display name and statistics for each file compressed. + -9 Use the slowest compression method (optimal compression). + -P Use pipes for the conversion to reduce disk space usage. + -K Keep a .Z file when it is smaller than the .gz file. + --help display this help and exit + --version output version information and exit + +Report bugs to <bug-gzip@gnu.org>." + +check=0 +pipe=0 +opt= +files= +keep=0 +res=0 +old=0 +new=0 +block=1024 +# block is the disk block size (best guess, need not be exact) + +warn="(does not preserve modes and timestamp)" +tmp=${TMPDIR-/tmp}/zfoo.$$ +set -C +echo hi > $tmp || exit +if test -z "`(${CPMOD-cpmod} $tmp $tmp) 2>&1`"; then + cpmod=${CPMOD-cpmod} + warn="" +fi + +if test -z "$cpmod" && ${TOUCH-touch} -r $tmp $tmp 2>/dev/null; then + cpmod="${TOUCH-touch}" + cpmodarg="-r" + warn="(does not preserve file modes)" +fi + +# check if GZIP env. variable uses -S or --suffix +gzip -q $tmp +ext=`echo $tmp* | sed "s|$tmp||"` +rm -f $tmp* +if test -z "$ext"; then + echo znew: error determining gzip extension + exit 1 +fi +if test "$ext" = ".Z"; then + echo znew: cannot use .Z as gzip extension. + exit 1 +fi + +for arg +do + case "$arg" in + --help) exec echo "$usage";; + --version) exec echo "$version";; + -*) opt="$opt $arg"; shift;; + *) break;; + esac +done + +if test $# -eq 0; then + echo "$usage" + exit 1 +fi + +opt=`echo "$opt" | sed -e 's/ //g' -e 's/-//g'` +case "$opt" in + *t*) check=1; opt=`echo "$opt" | sed 's/t//g'` +esac +case "$opt" in + *K*) keep=1; opt=`echo "$opt" | sed 's/K//g'` +esac +case "$opt" in + *P*) pipe=1; opt=`echo "$opt" | sed 's/P//g'` +esac +if test -n "$opt"; then + opt="-$opt" +fi + +for i do + n=`echo $i | sed 's/.Z$//'` + if test ! -f "$n.Z" ; then + echo $n.Z not found + res=1; continue + fi + test $keep -eq 1 && old=`wc -c < "$n.Z"` + if test $pipe -eq 1; then + if gzip -d < "$n.Z" | gzip $opt > "$n$ext"; then + # Copy file attributes from old file to new one, if possible. + test -n "$cpmod" && $cpmod $cpmodarg "$n.Z" "$n$ext" 2> /dev/null + else + echo error while recompressing $n.Z + res=1; continue + fi + else + if test $check -eq 1; then + if cp -p "$n.Z" "$n.$$" 2> /dev/null || cp "$n.Z" "$n.$$"; then + : + else + echo cannot backup "$n.Z" + res=1; continue + fi + fi + if gzip -d "$n.Z"; then + : + else + test $check -eq 1 && mv "$n.$$" "$n.Z" + echo error while uncompressing $n.Z + res=1; continue + fi + if gzip $opt "$n"; then + : + else + if test $check -eq 1; then + mv "$n.$$" "$n.Z" && rm -f "$n" + echo error while recompressing $n + else + # compress $n (might be dangerous if disk full) + echo error while recompressing $n, left uncompressed + fi + res=1; continue + fi + fi + test $keep -eq 1 && new=`wc -c < "$n$ext"` + if test $keep -eq 1 && test `expr \( $old + $block - 1 \) / $block` -lt \ + `expr \( $new + $block - 1 \) / $block`; then + if test $pipe -eq 1; then + rm -f "$n$ext" + elif test $check -eq 1; then + mv "$n.$$" "$n.Z" && rm -f "$n$ext" + else + gzip -d "$n$ext" && compress "$n" && rm -f "$n$ext" + fi + echo "$n.Z smaller than $n$ext -- unchanged" + + elif test $check -eq 1; then + if gzip -t "$n$ext" ; then + rm -f "$n.$$" "$n.Z" + else + test $pipe -eq 0 && mv "$n.$$" "$n.Z" + rm -f "$n$ext" + echo error while testing $n$ext, $n.Z unchanged + res=1; continue + fi + elif test $pipe -eq 1; then + rm -f "$n.Z" + fi +done +exit $res |