about window: show data from appdata file

data/resources/com.ranfdev.Notify.metainfo.xml.in.in

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- ranfdev 2019 <ranfdev@gmail.com> -->
+<component type="desktop-application">
+  <id>@app-id@</id>
+  <metadata_license>CC0</metadata_license>
+  <!-- Insert your license of choice here -->
+  <project_license>GPL-3.0-or-later</project_license>
+  <name>Notify</name>
+  <summary>Receive notifications from ntfy.sh.</summary>
+  <description>
+    <p>Versatile GTK4 client designed to seamlessly interface with the ntfy.sh notification service</p>
+  </description>
+  <screenshots>
+    <screenshot type="default">
+      <image>https://raw.githubusercontent.com/ranfdev/Notify/main/data/screenshots/1.png</image>
+      <caption>Main window, welcome screen</caption>
+    </screenshot>
+    <screenshot>
+      <image>https://raw.githubusercontent.com/ranfdev/Notify/main/data/screenshots/2.png</image>
+      <caption>Main window, subscription view</caption>
+    </screenshot>
+  </screenshots>
+  <url type="homepage">https://github.com/ranfdev/Notify</url>
+  <url type="bugtracker">https://github.com/ranfdev/Notify/issues</url>
+  <url type="donation">https://github.com/sponsors/ranfdev</url>
+
+  <content_rating type="oars-1.0" />
+  <releases>
+    <release version="0.1.2" date="2023-11-07">
+      <ul>
+        <li>Introduced dialog to write advanced messages</li>
+        <li>Automatic download of attached images</li>
+        <li>Introduced support for action buttons in the notifications</li>
+        <li>Improved performance of the message list layout</li>
+        <li>Improved design for status chips</li>
+        <li>Improved design for the message bar</li>
+        <li>Various bug fixes</li>
+      </ul>
+    </release>
+    <release version="0.1.1" date="2023-10-24" />
+    <release version="0.1.0" date="2023-10-13" />
+  </releases>
+  <developer_name>ranfdev</developer_name>
+  <update_contact>ranfdev@gmail.com</update_contact>
+  <translation type="gettext">@gettext-package@</translation>
+  <launchable type="desktop-id">@app-id@.desktop</launchable>
+</component>

data/resources/meson.build

@@ -10,6 +10,32 @@ blueprints = custom_target('blueprints',
   command: [find_program('blueprint-compiler'), 'batch-compile', '@OUTPUT@', '@CURRENT_SOURCE_DIR@', '@INPUT@'],
 )
 
+# Appdata
+appdata_conf = configuration_data()
+appdata_conf.set('app-id', application_id)
+appdata_conf.set('gettext-package', gettext_package)
+appdata_file = i18n.merge_file(
+  input: configure_file(
+    input: '@0@.metainfo.xml.in.in'.format(base_id),
+    output: '@BASENAME@',
+    configuration: appdata_conf
+  ),
+  output: 'metainfo.xml',
+  po_dir: podir,
+  install: true,
+  install_dir: datadir / 'metainfo'
+)
+# Validate Appdata
+if appstream_util.found()
+  test(
+    'validate-appdata', appstream_util,
+    args: [
+      'validate', '--nonet', appdata_file.full_path()
+    ],
+    depends: appdata_file,
+  )
+endif
+
 resources = gnome.compile_resources(
   'resources',
   'resources.gresource.xml',
@@ -17,5 +43,7 @@ resources = gnome.compile_resources(
   source_dir: meson.current_build_dir(),
   install: true,
   install_dir: pkgdatadir,
-  dependencies: blueprints,
+  dependencies: [blueprints, appdata_file],
 )
+
+

data/resources/resources.gresource.xml

@@ -6,7 +6,7 @@
     <file compressed="true" preprocess="xml-stripblanks">ui/window.ui</file>
     <file compressed="true" preprocess="xml-stripblanks">ui/subscription_info_dialog.ui</file>
     <file compressed="true">style.css</file>
-
+    <file compressed="true">metainfo.xml</file>
   </gresource>
   <gresource prefix="/com/ranfdev/Notify/icons/16x16/status/">
     <file preprocess="xml-stripblanks" alias="dice3-symbolic.svg">../icons/dice3-symbolic.svg</file>