[gnome-tweaks] meson: add tests to validate appdata/desktop files

[Jeremy Bicha <jbicha src gnome org>]

commit d30f191d273c0a2e5eb5ba3604b3c946aa450465
Author: Bilal Elmoussaoui <bil elmoussaoui gmail com>
Date:   Wed Jan 9 17:07:58 2019 +0000

    meson: add tests to validate appdata/desktop files

 data/meson.build | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
---
diff --git a/data/meson.build b/data/meson.build
index c16d64a..e02a590 100644
--- a/data/meson.build
+++ b/data/meson.build
@@ -6,6 +6,15 @@ i18n.merge_file(appdata_file,
   install: true,
   install_dir: appdatadir
 )
+appstream_util = find_program('appstream-util', required: false)
+if appstream_util.found()
+  test(
+    'validate-appdata', appstream_util,
+    args: [
+      'validate-relax', '--nonet', appdata_file.full_path()
+    ]
+  )
+endif
 
 desktop_file = 'org.gnome.tweaks.desktop'
 i18n.merge_file(desktop_file,
@@ -16,6 +25,16 @@ i18n.merge_file(desktop_file,
   install_dir: desktopdir,
   type: 'desktop'
 )
+desktop_file_validate = find_program('desktop-file-validate', required: false)
+if desktop_file_validate.found()
+  test(
+    'validate-desktop',
+    desktop_file_validate,
+    args: [
+      desktop_file.full_path()
+    ]
+  )
+endif
 
 gui_data = [
   'shell.ui',