Adding upstream version 0.2.

Signed-off-by: Daniel Baumann <daniel@debian.org>

zcat.in

@@ -0,0 +1,107 @@
+#! /bin/sh
+# Zcat - Cat wrapper for compressed files.
+# Copyright (C) 2009 Antonio Diaz Diaz.
+#
+# This script is free software: you have unlimited permission
+# to copy, distribute and modify it.
+
+LC_ALL=C
+export LC_ALL
+invocation_name=$0
+args=
+default_prog=lzip
+
+# Loop over args until pattern is found
+while [ x"$1" != x ] ; do
+
+	case "$1" in
+	--help | --he* | -h)
+		echo "Zcat - Cat wrapper for compressed files."
+		echo
+		echo "Zcat is a wrapper script around the cat command that allows"
+		echo "transparent concatenation of any combination of compressed and"
+		echo "non-compressed files. If any given file is compressed, its uncompressed"
+		echo "content is used. If a given file does not exist, zcat tries the"
+		echo "compressed file name corresponding to the default compressor selected."
+		echo "The supported compressors are gzip, bzip2, lzip and xz."
+		echo
+		echo "Usage: ${invocation_name} [OPTIONS] [CAT_OPTIONS] [FILES]"
+		echo
+		echo "CAT_OPTIONS are passed directly to cat."
+		echo "The exit status from cat is preserved."
+		echo
+		echo "Options:"
+		echo "  -h, --help          display this help and exit"
+		echo "  -V, --version       output version information and exit"
+		echo "      --gzip          use gzip as default decompressor"
+		echo "      --bzip2         use bzip2 as default decompressor"
+		echo "      --lzip          use lzip as default decompressor (default)"
+		echo "      --xz            use xz as default decompressor"
+		echo
+		echo "Report bugs to lzip-bug@nongnu.org"
+		echo "Lzip home page: http://www.nongnu.org/lzip/lzip.html"
+		exit 0 ;;
+	--version | --ve* | -V)
+		echo "Zcat VERSION"
+		echo "Copyright (C) 2009 Antonio Diaz Diaz."
+		echo "This script is free software: you have unlimited permission"
+		echo "to copy, distribute and modify it."
+		exit 0 ;;
+	--gz*)
+		default_prog=gzip ;;
+	--bz*)
+		default_prog=bzip2 ;;
+	--lz*)
+		default_prog=lzip ;;
+	--xz*)
+		default_prog=xz ;;
+	-)
+		;;
+	--)
+		shift; break ;;
+	-?*)
+		args="${args} $1" ;;
+	 *)
+		break ;;
+	esac
+	shift
+done
+
+if test $# -eq 0; then
+	${default_prog} -cd | cat ${args}
+	exit $?
+fi
+
+retval=0
+for i in "$@" ; do
+	prog="${default_prog} -cdfq"
+	case "$i" in
+	*.gz | *.tgz)
+		prog="gzip -cdfq" ;;
+	*.bz2 | *.tbz | *.tbz2)
+		prog="bzip2 -cdfq" ;;
+	*.lz | *.tlz)
+		prog="lzip -cdfq" ;;
+	*.xz | *.txz)
+		prog="xz -cdfq" ;;
+	*)
+		if test -f "$i"; then prog=cat
+		else
+			case ${default_prog} in
+			gzip)
+				if test -f "$i.gz"; then i="$i.gz"; fi ;;
+			bzip2)
+				if test -f "$i.bz2"; then i="$i.bz2"; fi ;;
+			lzip)
+				if test -f "$i.lz"; then i="$i.lz"; fi ;;
+			xz)
+				if test -f "$i.xz"; then i="$i.xz"; fi ;;
+			esac
+		fi ;;
+	esac
+	${prog} -- "$i" | cat ${args}
+	r=$?
+	test "$r" -ne 0 && retval="$r"
+done
+
+exit ${retval}