[sushi] data: add an appdata file

[Cosimo Cecchi <cosimoc src gnome org>]

commit 2ddc13149937b631c6964e1a61df8d52508ce4af
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Wed Jun 19 16:03:38 2019 -0700

    data: add an appdata file
    
    Based on an initial contribution by
    Jiri Eischmann <eischmann redhat com>
    
    https://bugzilla.gnome.org/show_bug.cgi?id=761038

 data/meson.build                             |  5 +++++
 data/org.gnome.NautilusPreviewer.appdata.xml | 22 ++++++++++++++++++++++
 2 files changed, 27 insertions(+)
---
diff --git a/data/meson.build b/data/meson.build
index 4c917c0..62876c8 100644
--- a/data/meson.build
+++ b/data/meson.build
@@ -8,3 +8,8 @@ configure_file(
   configuration: dbus_conf,
   install_dir: join_paths(datadir, 'dbus-1', 'services'),
 )
+
+install_data(
+  'org.gnome.NautilusPreviewer.appdata.xml',
+  install_dir: join_paths(datadir, 'metainfo')
+)
diff --git a/data/org.gnome.NautilusPreviewer.appdata.xml b/data/org.gnome.NautilusPreviewer.appdata.xml
new file mode 100644
index 0000000..85209e1
--- /dev/null
+++ b/data/org.gnome.NautilusPreviewer.appdata.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Copyright 2015 Jiri Eischmann <eischmann redhat com>
+-->
+<component type="addon">
+  <id>org.gnome.NautilusPreviewer</id>
+  <extends>org.gnome.Nautilus</extends>
+  <metadata_license>CC0-1.0</metadata_license>
+  <project_license>GPL-2.0+</project_license>
+  <name>Sushi</name>
+  <summary>Provide a facility for quickly viewing different kinds of files</summary>
+  <keywords>
+    <keyword>nautilus</keyword>
+    <keyword>sushi</keyword>
+    <keyword>view</keyword>
+    <keyword>previewer</keyword>
+    <keyword>preview</keyword>
+  </keywords>
+  <translation type="gettext">sushi</translation>
+  <url type="homepage">https://gitlab.gnome.org/GNOME/sushi</url>
+  <url type="bugtracker">https://gitlab.gnome.org/GNOME/sushi/issues</url>
+  <updatecontact>eischmann_at_redhat.com</updatecontact>
+</component>