Deployment: add ostree.endoflife

When metadata contains ostree.endoflife attribute,
its information will be added to the deployment Variant,
which will later be shown in rpm-ostree status command

src/app/rpmostree-builtin-status.c

@@ -244,6 +244,7 @@ status_generic (RPMOSTreeSysroot *sysroot_proxy,
       const gchar *os_name;
       const gchar *checksum;
       const gchar *version_string;
+      const gchar *end_of_life_string;
       const gchar *unlocked;
       const gchar *live_inprogress;
       const gchar *live_replaced;
@@ -563,6 +564,11 @@ status_generic (RPMOSTreeSysroot *sysroot_proxy,
           print_kv ("Unlocked", max_key_len, unlocked);
           g_print ("%s%s", bold_suffix, red_suffix);
         }
+      /* look for ostree.endoflife attribute in the deployment */
+      g_variant_dict_lookup (dict, "ostree.endoflife", "&s", &end_of_life_string);
+
+      if (end_of_life_string)
+        g_print ("\n end-of-life: %s", end_of_life_string);
     }
 
   return TRUE;

src/daemon/rpmostreed-deployment-utils.c

@@ -133,12 +133,21 @@ variant_add_commit_details (GVariantDict *dict,
 {
   g_autoptr(GVariant) metadata = NULL;
   g_autofree gchar *version_commit = NULL;
+  g_autofree gchar *end_of_life = NULL;
   guint64 timestamp = 0;
 
   timestamp = ostree_commit_get_timestamp (commit);
   metadata = g_variant_get_child_value (commit, 0);
   if (metadata != NULL)
-    g_variant_lookup (metadata, "version", "s", &version_commit);
+    {
+      g_variant_lookup (metadata, "version", "s", &version_commit);
+      /* only add the attribute for the base commit */
+      if (prefix != NULL)
+        g_variant_lookup (metadata, "ostree.endoflife", "s", &end_of_life);
+    }
+
+  if (end_of_life != NULL)
+    g_variant_dict_insert (dict, "ostree.endoflife", "s", end_of_life);
 
   if (version_commit != NULL)
     g_variant_dict_insert (dict, glnx_strjoina (prefix ?: "", "version"),