Fix #458 supply fdo-appdata software metadata.

shotcut.appdata.xml

@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<component type="desktop">
+  <id>shotcut.desktop</id>
+  <metadata_license>CC0-1.0</metadata_license>
+  <project_license>GPLv3</project_license>
+  <name>Shotcut</name>
+  <summary>A free, open source, cross-platform **video editor**</summary>
+  <description>
+    <p>
+      Shotcut is a free and open-source cross-platform video editing application for
+      Windows, macOS, and Linux.
+
+      Shotcut supports many video, audio, and image formats via FFmpeg and screen,
+      webcam, and audio capture. It uses a time-line for non-linear video editing of
+      multiple tracks that may be composed of various file formats. Scrubbing and
+      transport control are assisted by OpenGL GPU-based processing and a number of
+      video and audio filters are available.
+    </p>
+  </description>
+  <screenshots>
+    <screenshot type="default">
+      <image>https://www.shotcut.org/assets/img/pro-formats.png</image>
+      <caption>Wide Format Support</caption>
+    </screenshot>
+    <screenshot>
+      <image>https://www.shotcut.org/assets/img/waveforms.png</image>
+      <caption>Audio Features</caption>
+    </screenshot>
+    <screenshot>
+      <image>https://www.shotcut.org/assets/img/shotcut_mac_monitor.png</image>
+      <caption>Video Effects</caption>
+    </screenshot>
+    <screenshot>
+      <image>https://www.shotcut.org/assets/img/editing-group.jpg</image>
+      <caption>Editing Features</caption>
+    </screenshot>
+    <screenshot>
+      <image>https://www.shotcut.org/assets/img/external-monitoring.png</image>
+      <caption>Display and Monitoring</caption>
+    </screenshot>
+  </screenshots>
+  <developer_name>Meltytech, LLC</developer_name>
+  <update_contact>dan_AT_dennedy.org</update_contact>
+  <url type="homepage">https://www.shotcut.org/</url>
+  <url type="bugtracker">https://github.com/mltframework/shotcut/issues/</url>
+  <url type="faq">https://www.shotcut.org/FAQ/</url>
+  <url type="help">https://www.shotcut.org/tutorials/</url>
+  <url type="translate">https://www.transifex.com/ddennedy/shotcut/</url>
+</component>

src/src.pro

@@ -280,7 +280,8 @@ OTHER_FILES += \
     ../icons/dark/index.theme \
     ../icons/light/index.theme \
     ../snap/snapcraft.yaml \
-    ../snap/setup/gui/shotcut.desktop
+    ../snap/setup/gui/shotcut.desktop \
+    ../shotcut.appdata.xml
 
 TRANSLATIONS += \
     ../translations/shotcut_ca.ts \
@@ -381,3 +382,9 @@ INSTALLS += target
 qmlfiles.files = $$PWD/qml
 qmlfiles.path = $$PREFIX/share/shotcut
 INSTALLS += qmlfiles
+
+unix:!mac {
+    metainfo.files = $$PWD/../shotcut.appdata.xml
+    metainfo.path = $$PREFIX/share/metainfo
+    INSTALLS += qmlfiles
+}