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File rpm-findlang-inject-metainfo.patch of Package rpm

--- ./scripts/find-lang.sh.orig	2018-01-31 13:37:22.810352621 +0000
+++ ./scripts/find-lang.sh	2018-01-31 13:39:38.117990971 +0000
@@ -32,6 +32,7 @@ Additional options:
   --with-man		find localized man pages
   --all-name		match all package/domain names
   --without-mo		do not find locale files
+  --metainfo            create a metainfo.xml file for AppStream
 EOF
 exit 1
 }
@@ -62,6 +63,7 @@ ALL_NAME=#
 NO_ALL_NAME=
 ONLY_C=#
 NO_C=#
+METAINFO=#
 while test $# -gt 0 ; do
     case "${1}" in
 	--with-gnome )
@@ -113,6 +115,11 @@ while test $# -gt 0 ; do
 		NO_C=
 		shift
 		;;
+	--metainfo )
+		METAINFO=
+		METADESKID=${2}
+		shift 2
+		;;
 	* )
 		if [ $MO_NAME != ${NAMES[$#]}.lang ]; then
 		    NAMES[${#NAMES[@]}]=$MO_NAME
@@ -323,6 +330,24 @@ if ! grep -q / $MO_NAME_NEW; then
 	exit 1
 fi
 
+if [ -z "${METAINFO}" ] ; then
+    # create a metainfo.xml file for METADESKID
+    mkdir -p ${TOP_DIR}/usr/share/appdata
+    cat > ${TOP_DIR}/usr/share/appdata/${METADESKID}-lang.metainfo.xml <<EOF
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Copyright 2016 openSUSE - file is auto-generated -->
+<component type="addon">
+  <id>${METADESKID}-lang</id>
+  <extends>${METADESKID}.desktop</extends>
+  <name>Translations</name>
+  <summary>Translate the user interface</summary>
+  <metadata_license>CC0-1.0</metadata_license>
+  <updatecontact>https://bugzilla.opensuse.org</updatecontact>
+</component>
+EOF
+  echo /usr/share/appdata/${METADESKID}-lang.metainfo.xml >> $MO_NAME_NEW
+fi
+
 sort -u $MO_NAME_NEW >> $MO_NAME
 rm -f $MO_NAME_NEW