deltas: Set `indexed-deltas` key in the config and summary

Clients can use these during pull and avoid downloading the summary if
needed, or use the indexed-deltas instead of relying on the ones in
the summary which may be left out.

1 files changed, 15 insertions, 0 deletions

diff --git a/src/libostree/ostree-repo-static-delta-core.c b/src/libostree/ostree-repo-static-delta-core.c
index 5370d152..c2536724 100644
--- a/src/libostree/ostree-repo-static-delta-core.c
+++ b/src/libostree/ostree-repo-static-delta-core.c
@@ -1264,6 +1264,7 @@ ostree_repo_static_delta_reindex (OstreeRepo                 *repo,
 {
   g_autoptr(GPtrArray) all_deltas = NULL;
   g_autoptr(GHashTable) deltas_to_commit_ht = NULL; /* map: to checksum -> ptrarray of from checksums (or NULL) */
+  gboolean opt_indexed_deltas;
 
   /* Protect against parallel prune operation */
   g_autoptr(OstreeRepoAutoLock) lock =
@@ -1271,6 +1272,20 @@ ostree_repo_static_delta_reindex (OstreeRepo                 *repo,
   if (!lock)
     return FALSE;
 
+  /* Enusre that the "indexed-deltas" option is set on the config, so we know this when pulling */
+  if (!ot_keyfile_get_boolean_with_default (repo->config, "core",
+                                            "indexed-deltas", FALSE,
+                                            &opt_indexed_deltas, error))
+    return FALSE;
+
+  if (!opt_indexed_deltas)
+    {
+      g_autoptr(GKeyFile) config = ostree_repo_copy_config (repo);
+      g_key_file_set_boolean (config, "core", "indexed-deltas", TRUE);
+      if (!ostree_repo_write_config (repo, config, error))
+        return FALSE;
+    }
+
   deltas_to_commit_ht = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, (GDestroyNotify)null_or_ptr_array_unref);
 
   if (opt_to_commit == NULL)