From 90f5fdb44d8085d7787d24e9e5e8fc9cca515ea3 Mon Sep 17 00:00:00 2001
From: Alexander Larsson <alexl@redhat.com>
Date: Thu, 7 May 2020 09:06:31 +0200
Subject: [PATCH] oci: Add flatpak_oci_image_get_n_layers() helper

---
 common/flatpak-json-oci-private.h | 1 +
 common/flatpak-json-oci.c         | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/common/flatpak-json-oci-private.h b/common/flatpak-json-oci-private.h
index f732025a..f20e88e3 100644
--- a/common/flatpak-json-oci-private.h
+++ b/common/flatpak-json-oci-private.h
@@ -222,6 +222,7 @@ void             flatpak_oci_image_set_os (FlatpakOciImage *image,
                                            const char      *os);
 void             flatpak_oci_image_set_layers (FlatpakOciImage *image,
                                                const char     **layers);
+int              flatpak_oci_image_get_n_layers (FlatpakOciImage *image);
 void             flatpak_oci_image_set_layer (FlatpakOciImage *image,
                                               const char      *layer);
 GHashTable *     flatpak_oci_image_get_labels (FlatpakOciImage *self);
diff --git a/common/flatpak-json-oci.c b/common/flatpak-json-oci.c
index 6b79de97..95c0acff 100644
--- a/common/flatpak-json-oci.c
+++ b/common/flatpak-json-oci.c
@@ -720,6 +720,12 @@ flatpak_oci_image_set_layers (FlatpakOciImage *image,
   image->rootfs.diff_ids = g_strdupv ((char **) layers);
 }
 
+int
+flatpak_oci_image_get_n_layers (FlatpakOciImage *image)
+{
+  return ptrv_count ((gpointer *) image->rootfs.diff_ids);
+}
+
 GHashTable *
 flatpak_oci_image_get_labels (FlatpakOciImage *self)
 {