Imported Upstream version 1.5

[debian/gzip] / znew.in

diff --git a/znew.in b/znew.in
index c7cdfc83fcaec94b22447c5ba36b492aaf652723..bd8f34f61cc9450b5613765dc5869bad5de21c56 100644 (file)
--- a/znew.in
+++ b/znew.in
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-# Copyright (C) 1998, 2002, 2004, 2007 Free Software Foundation
+# Copyright (C) 1998, 2002, 2004, 2007, 2010 Free Software Foundation
 # Copyright (C) 1993 Jean-loup Gailly
 
 # This program is free software; you can redistribute it and/or modify
@@ -24,7 +24,7 @@ esac
 PATH=$bindir:$PATH; export PATH
 
 version="znew (gzip) @VERSION@
-Copyright (C) 2007, 2009-2010 Free Software Foundation, Inc.
+Copyright (C) 2010-2012 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.
@@ -41,7 +41,7 @@ Options:
   -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.
+  -K     Keep a .Z file when it is smaller than the .gz file; implies -t.
       --help     display this help and exit
       --version  output version information and exit
 
@@ -97,7 +97,7 @@ do
 done
 
 if test $# -eq 0; then
-  echo "$usage"
+  echo >&2 "$0: invalid number of operands; try \`$0 --help' for help"
   exit 1
 fi
 
@@ -106,7 +106,7 @@ 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'`
+  *K*) keep=1; check=1; opt=`echo "$opt" | sed 's/K//g'`
 esac
 case "$opt" in
   *P*) pipe=1; opt=`echo "$opt" | sed 's/P//g'`
@@ -133,9 +133,9 @@ for i do
   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 "$n.Z"
+        echo cannot backup "$n.Z"
         res=1; continue
       fi
     fi
@@ -150,10 +150,10 @@ for i do
       :
     else
       if test $check -eq 1; then
-       mv "$n.$$" "$n.Z" && rm -f "$n"
+        mv "$n.$$" "$n.Z" && rm -f "$n"
         echo error while recompressing $n
       else
-       # compress $n  (might be dangerous if disk full)
+        # compress $n  (might be dangerous if disk full)
         echo error while recompressing $n, left uncompressed
       fi
       res=1; continue
@@ -161,13 +161,11 @@ for i do
   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
+                              `expr \( $new + $block - 1 \) / $block`; then
     if test $pipe -eq 1; then
       rm -f "$n$ext"
-    elif test $check -eq 1; then
-      mv "$n.$$" "$n.Z" && rm -f "$n$ext"
     else
-      gzip -d "$n$ext" && compress "$n" && rm -f "$n$ext"
+      mv "$n.$$" "$n.Z" && rm -f "$n$ext"
     fi
     echo "$n.Z smaller than $n$ext -- unchanged"