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-rw-r--r--src/scripts/xzdiff.in172
1 files changed, 172 insertions, 0 deletions
diff --git a/src/scripts/xzdiff.in b/src/scripts/xzdiff.in
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+++ b/src/scripts/xzdiff.in
@@ -0,0 +1,172 @@
+#!@POSIX_SHELL@
+
+# Copyright (C) 1998, 2002, 2006, 2007 Free Software Foundation
+# Copyright (C) 1993 Jean-loup Gailly
+
+# Modified for XZ Utils by Andrew Dudman and Lasse Collin.
+
+# 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.
+
+#SET_PATH - This line is a placeholder to ease patching this script.
+
+# Instead of unsetting XZ_OPT, just make sure that xz will use file format
+# autodetection. This way memory usage limit and thread limit can be
+# specified via XZ_OPT. With gzip and bzip2 it's OK to just unset the
+# environment variables.
+xz='@xz@ --format=auto'
+unset GZIP BZIP BZIP2
+
+case ${0##*/} in
+ *cmp*) prog=xzcmp; cmp=${CMP:-cmp};;
+ *) prog=xzdiff; cmp=${DIFF:-diff};;
+esac
+
+version="$prog (@PACKAGE_NAME@) @VERSION@"
+
+usage="Usage: ${0##*/} [OPTION]... FILE1 [FILE2]
+Compare FILE1 to FILE2, using their uncompressed contents if they are
+compressed. If FILE2 is omitted, then the files compared are FILE1 and
+FILE1 from which the compression format suffix has been stripped.
+
+Do comparisons like '$cmp' does. OPTIONs are the same as for '$cmp'.
+
+Report bugs to <@PACKAGE_BUGREPORT@>."
+
+# sed script to escape all ' for the shell, and then (to handle trailing
+# newlines correctly) turn trailing X on last line into '.
+escape='
+ s/'\''/'\''\\'\'''\''/g
+ $s/X$/'\''/
+'
+
+while :; do
+ case $1 in
+ --h*) printf '%s\n' "$usage" || exit 2; exit;;
+ --v*) echo "$version" || exit 2; exit;;
+ --) shift; break;;
+ -*\'*) cmp="$cmp '"`printf '%sX\n' "$1" | sed "$escape"`;;
+ -?*) cmp="$cmp '$1'";;
+ *) break;;
+ esac
+ shift
+done
+cmp="$cmp --"
+
+for file; do
+ test "X$file" = X- || <"$file" || exit 2
+done
+
+xz1=$xz
+xz2=$xz
+xz_status=0
+exec 3>&1
+
+if test $# -eq 1; then
+ case $1 in
+ *[-.]xz | *[-.]lzma | *.t[lx]z)
+ ;;
+ *[-.]bz2 | *.tbz | *.tbz2)
+ xz1=$bzip2;;
+ *[-.][zZ] | *_z | *[-.]gz | *.t[ag]z)
+ xz1=$gzip;;
+ *)
+ echo >&2 "$0: $1: Unknown compressed file name suffix"
+ exit 2;;
+ esac
+ case $1 in
+ *[-.][zZ] | *_z | *[-.][gx]z | *[-.]bz2 | *[-.]lzma)
+ FILE=`expr "X$1" : 'X\(.*\)[-.][abglmxzZ2]*$'`
+ *.t[abglx]z)
+ FILE=`expr "X$1" : 'X\(.*[-.]t\)[abglx]z$'`ar
+ *.tbz2)
+ FILE=`expr "X$1" : 'X\(.*[-.]t\)bz2$'`ar
+ esac
+ xz_status=$(
+ exec 4>&1
+ ($xz1 -cd -- "$1" 4>&-; echo $? >&4) 3>&- | eval "$cmp" - '"$FILE"' >&3
+ )
+elif test $# -eq 2; then
+ case $1 in
+ *[-.]bz2 | *.tbz | *.tbz2) xz1=$bzip2;;
+ *[-.][zZ] | *_z | *[-.]gz | *.t[ag]z) xz1=$gzip;;
+ esac
+ case $2 in
+ *[-.]bz2 | *.tbz | *.tbz2) xz2=$bzip2;;
+ *[-.][zZ] | *_z | *[-.]gz | *.t[ag]z) xz2=$gzip;;
+ esac
+ case $1 in
+ *[-.][zZ] | *_z | *[-.][gx]z | *[-.]bz2 | *[-.]lzma | *.t[abglx]z | *.tbz2 | -)
+ case "$2" in
+ *[-.][zZ] | *_z | *[-.][gx]z | *[-.]bz2 | *[-.]lzma | *.t[abglx]z | *.tbz2 | -)
+ if test "$1$2" = --; then
+ xz_status=$(
+ exec 4>&1
+ ($xz1 -cdfq - 4>&-; echo $? >&4) 3>&- |
+ eval "$cmp" - - >&3
+ )
+ elif # Reject Solaris 8's buggy /bin/bash 2.03.
+ echo X | (echo X | eval "$cmp" /dev/fd/5 - >/dev/null 2>&1) 5<&0; then
+ xz_status=$(
+ exec 4>&1
+ ($xz1 -cdfq -- "$1" 4>&-; echo $? >&4) 3>&- |
+ ( ($xz2 -cdfq -- "$2" 4>&-; echo $? >&4) 3>&- 5<&- </dev/null |
+ eval "$cmp" /dev/fd/5 -) 5<&0
+ )
+ case $xz_status in
+ *[1-9]*) xz_status=1;;
+ *) xz_status=0;;
+ esac
+ else
+ F=`expr "/$2" : '.*/\(.*\)[-.][ablmtxz2]*$'` || F=$prog
+ tmp=
+ trap '
+ test -n "$tmp" && rm -f "$tmp"
+ (exit 2); exit 2
+ ' HUP INT PIPE TERM 0
+ tmp=`mktemp -t -- "$F.XXXXXX"` || exit 2
+ $xz2 -cdfq -- "$2" > "$tmp" || exit 2
+ xz_status=$(
+ exec 4>&1
+ ($xz1 -cdfq -- "$1" 4>&-; echo $? >&4) 3>&- |
+ eval "$cmp" - '"$tmp"' >&3
+ )
+ cmp_status=$?
+ rm -f "$tmp" || xz_status=$?
+ trap - HUP INT PIPE TERM 0
+ (exit $cmp_status)
+ fi;;
+ *)
+ xz_status=$(
+ exec 4>&1
+ ($xz1 -cdfq -- "$1" 4>&-; echo $? >&4) 3>&- |
+ eval "$cmp" - '"$2"' >&3
+ );;
+ esac;;
+ *)
+ case "$2" in
+ *[-.][zZ] | *_z | *[-.][gx]z | *[-.]bz2 | *[-.]lzma | *.t[abglx]z | *.tbz2 | -)
+ xz_status=$(
+ exec 4>&1
+ ($xz2 -cdfq -- "$2" 4>&-; echo $? >&4) 3>&- |
+ eval "$cmp" '"$1"' - >&3
+ );;
+ *)
+ eval "$cmp" '"$1"' '"$2"';;
+ esac;;
+ esac
+else
+ echo >&2 "$0: Invalid number of operands; try \`${0##*/} --help' for help"
+ exit 2
+fi
+
+cmp_status=$?
+test "$xz_status" -eq 0 || exit 2
+exit $cmp_status