[gtranslator: 1/2] Add version option to application

[Daniel Garcia Moreno <danigm src gnome org>]

commit ae0535f3eca2d89f4661f4bfc048f08dfb88b0f3
Author: redoC-A2k <afshanahmeda2k gmail com>
Date:   Tue Mar 15 07:11:19 2022 +0000

    Add version option to application
    
    Fixes https://gitlab.gnome.org/GNOME/gtranslator/-/issues/150

 src/gtr-application.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
---
diff --git a/src/gtr-application.c b/src/gtr-application.c
index db58041b..25f24ba1 100644
--- a/src/gtr-application.c
+++ b/src/gtr-application.c
@@ -162,6 +162,15 @@ on_window_destroy_cb (GtrWindow *window, GtrApplication *app)
     set_active_window (app, windows != NULL ? windows->data : NULL);
 }
 
+static int
+handle_local_options_cb (GApplication *application, GVariantDict *options, gpointer user_data) {
+  if (g_variant_dict_contains (options, "version")) {
+    g_print ("%s - %s\n", PACKAGE, PACKAGE_VERSION);
+    return 0;
+  }
+  return -1;
+}
+
 static void
 gtr_application_init (GtrApplication *application)
 {
@@ -173,6 +182,15 @@ gtr_application_init (GtrApplication *application)
   priv->last_dir = NULL;
   priv->first_run = FALSE;
 
+  GOptionEntry options[] = {
+      {"version", 'v', 0, G_OPTION_ARG_NONE, NULL, "Print version information and exit", NULL},
+      {NULL}
+  };
+
+  g_application_add_main_option_entries (application, options);
+
+  g_signal_connect (application, "handle-local-options", handle_local_options_cb, NULL);
+
   /* Creating config folder */
   ensure_user_config_dir (); /* FIXME: is this really needed ? */