Add appdata file for openmw and install it

CMakeLists.txt

@@ -334,6 +334,8 @@ configure_file(${OpenMW_SOURCE_DIR}/files/gamecontrollerdb.txt
 if (NOT WIN32 AND NOT APPLE)
     configure_file(${OpenMW_SOURCE_DIR}/files/openmw.desktop
         "${OpenMW_BINARY_DIR}/openmw.desktop")
+    configure_file(${OpenMW_SOURCE_DIR}/files/openmw.appdata.xml
+        "${OpenMW_BINARY_DIR}/openmw.appdata.xml")
     configure_file(${OpenMW_SOURCE_DIR}/files/openmw-cs.desktop
         "${OpenMW_BINARY_DIR}/openmw-cs.desktop")
 endif()
@@ -422,6 +424,7 @@ IF(NOT WIN32 AND NOT APPLE)
     # Install icon and desktop file
     INSTALL(FILES "${OpenMW_BINARY_DIR}/openmw.desktop" DESTINATION "${DATAROOTDIR}/applications" COMPONENT "openmw")
     INSTALL(FILES "${OpenMW_SOURCE_DIR}/files/launcher/images/openmw.png" DESTINATION "${ICONDIR}" COMPONENT "openmw")
+    INSTALL(FILES "${OpenMW_BINARY_DIR}/openmw.appdata.xml" DESTINATION "${DATAROOTDIR}/appdata" COMPONENT "openmw")
     IF(BUILD_OPENCS)
         INSTALL(FILES "${OpenMW_BINARY_DIR}/openmw-cs.desktop" DESTINATION "${DATAROOTDIR}/applications" COMPONENT "opencs")
         INSTALL(FILES "${OpenMW_SOURCE_DIR}/files/opencs/openmw-cs.png" DESTINATION "${ICONDIR}" COMPONENT "opencs")

files/openmw.appdata.xml

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Copyright 2015 Alexandre Moine <nobrakal@gmail.com> -->
+<application>
+ <id type="desktop">openmw.desktop</id>
+ <metadata_license>CC0-1.0</metadata_license>
+ <project_license> GPL-3.0 and MIT and zlib</project_license>
+ <name>OpenMW</name>
+ <summary>Unofficial open source engine re-implementation of the game Morrowind</summary>
+ <description>
+  <p>
+  OpenMW is a recreation of the engine for the popular role-playing game Morrowind by Bethesda Softworks. You need to own and install the original game for OpenMW to work.
+  </p>
+  <p>
+  The main quests in Morrowind, Tribunal and Bloodmoon are all completable. Some issues with side quests are to be expected (but rare).
+  </p>
+  <p>
+  Pre-existing modifications created for the original Morrowind engine can be hit-and-miss, but a mod created for Morrowind may not necessarily run in OpenMW.
+  </p>
+ </description>
+
+ <screenshots>
+  <screenshot type="default">
+   <image>http://wiki.openmw.org/images/b/b2/Openmw_0.11.1_launcher_1.png</image>
+   <caption>The OpenMW launcher</caption>
+  </screenshot>
+  <screenshot>
+   <image>http://wiki.openmw.org/images/f/f1/Screenshot_mournhold_plaza_0.35.png</image>
+   <caption>The Mournhold's plaza on OpenMW</caption>
+  </screenshot>
+  <screenshot>
+   <image>http://wiki.openmw.org/images/5/5b/Screenshot_Vivec_seen_from_Ebonheart_0.35.png</image>
+   <caption>Vivec seen from Ebonheart on OpenMW</caption>
+  </screenshot>
+ </screenshots>
+<updatecontact>nobrakal@gmail.com</updatecontact>
+ <url type="homepage">https://openmw.org</url>
+ <url type="bugtracker">https://bugs.openmw.org/</url>
+ <url type="faq">https://openmw.org/faq/</url>
+</application>