[gnome-builder/wip/chergert/flatpak-repo] flatpak: add helper to get refs for sdk/platform

[Christian Hergert <chergert src gnome org>]

commit 4476a7c93479791083042ebc5dd7879dae30327b
Author: Christian Hergert <chergert redhat com>
Date:   Wed Aug 25 13:58:45 2021 -0700

    flatpak: add helper to get refs for sdk/platform

 src/plugins/flatpak/gbp-flatpak-runtime.c | 23 +++++++++++++++++++++++
 src/plugins/flatpak/gbp-flatpak-runtime.h |  1 +
 2 files changed, 24 insertions(+)
---
diff --git a/src/plugins/flatpak/gbp-flatpak-runtime.c b/src/plugins/flatpak/gbp-flatpak-runtime.c
index edca4ba4b..f98c02da5 100644
--- a/src/plugins/flatpak/gbp-flatpak-runtime.c
+++ b/src/plugins/flatpak/gbp-flatpak-runtime.c
@@ -801,3 +801,26 @@ gbp_flatpak_runtime_new (const char *name,
                        "sdk", sdk_name,
                        NULL);
 }
+
+char **
+gbp_flatpak_runtime_get_refs (GbpFlatpakRuntime *self)
+{
+  GPtrArray *ar;
+  g_autofree char *sdk = NULL;
+  g_autofree char *platform = NULL;
+  const char *arch;
+
+  g_return_val_if_fail (GBP_IS_FLATPAK_RUNTIME (self), NULL);
+
+  arch = ide_triplet_get_arch (self->triplet);
+  platform = g_strdup_printf ("runtime/%s/%s/%s", self->platform, arch, self->branch);
+  sdk = g_strdup_printf ("runtime/%s/%s/%s", self->sdk, arch, self->branch);
+
+  ar = g_ptr_array_new ();
+  g_ptr_array_add (ar, g_steal_pointer (&sdk));
+  if (g_strcmp0 (sdk, platform) != 0)
+    g_ptr_array_add (ar, g_steal_pointer (&platform));
+  g_ptr_array_add (ar, NULL);
+
+  return (char **)g_ptr_array_free (ar, FALSE);
+}
diff --git a/src/plugins/flatpak/gbp-flatpak-runtime.h b/src/plugins/flatpak/gbp-flatpak-runtime.h
index dd9a35473..3512f1197 100644
--- a/src/plugins/flatpak/gbp-flatpak-runtime.h
+++ b/src/plugins/flatpak/gbp-flatpak-runtime.h
@@ -41,5 +41,6 @@ const gchar         *gbp_flatpak_runtime_get_branch   (GbpFlatpakRuntime *self);
 const gchar         *gbp_flatpak_runtime_get_platform (GbpFlatpakRuntime *self);
 const gchar         *gbp_flatpak_runtime_get_sdk      (GbpFlatpakRuntime *self);
 gchar               *gbp_flatpak_runtime_get_sdk_name (GbpFlatpakRuntime *self);
+char               **gbp_flatpak_runtime_get_refs     (GbpFlatpakRuntime *self);
 
 G_END_DECLS