rpmgs: fix get xz tarball

bin/rpmgs

@@ -120,10 +120,10 @@ function get_targz()
 
 function get_tarxz()
 {
-	BIN7ZIP=/usr/bin/7z
-	test -x $BIN7ZIP || return
+	local BIN=/usr/bin/xz
+	test -x $BIN || return
 	get_archive tar.xz || return
-	$BIN7ZIP x $WEXT.tar.xz && return
+	$BIN -d $WEXT.tar.xz && return
 	rm -fv $WEXT.tar.xz
 	return 1
 }
@@ -212,7 +212,7 @@ function get_source()
 # download GETSOURCE url to tar.bz2 or tar (set WEXT as without extension name)
 download_any_tarball()
 {
-	get_tarbz2 || get_targz || get_tgz || get_7z || get_zip || get_tbz2 || get_tbz || get_tar || get_tarxz || get_rar || dir_name || fatal "Cannot retrieve $GETSOURCE"
+	get_tarbz2 || get_targz || get_tgz || get_7z || get_zip || get_tbz2 || get_tbz || get_tarxz || get_rar || get_tar || dir_name || fatal "Cannot retrieve $GETSOURCE"
 }
 
 # param: spec name number (f.i., url for Source-url)

share/eterbuild/functions/tarball

@@ -103,6 +103,11 @@ copy_tarball_to_tar()
 		return
 	fi
 
+	if [ ! ${SNAME/.tar.xz/} = "$SNAME" ] ; then
+		a= xz -d "$SNAME"  > "$TNAME"
+		return
+	fi
+
 	if [ ! ${SNAME/.tgz/} = "$SNAME" ] ; then
 		gunzip -c "$SNAME" > "$TNAME"
 		return