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-rw-r--r--cache-tree.c18
-rw-r--r--sparse-index.c10
2 files changed, 27 insertions, 1 deletions
diff --git a/cache-tree.c b/cache-tree.c
index 5f07a39e50..950a9615db 100644
--- a/cache-tree.c
+++ b/cache-tree.c
@@ -256,6 +256,24 @@ static int update_one(struct cache_tree *it,
*skip_count = 0;
+ /*
+ * If the first entry of this region is a sparse directory
+ * entry corresponding exactly to 'base', then this cache_tree
+ * struct is a "leaf" in the data structure, pointing to the
+ * tree OID specified in the entry.
+ */
+ if (entries > 0) {
+ const struct cache_entry *ce = cache[0];
+
+ if (S_ISSPARSEDIR(ce->ce_mode) &&
+ ce->ce_namelen == baselen &&
+ !strncmp(ce->name, base, baselen)) {
+ it->entry_count = 1;
+ oidcpy(&it->oid, &ce->oid);
+ return 1;
+ }
+ }
+
if (0 <= it->entry_count && has_object_file(&it->oid))
return it->entry_count;
diff --git a/sparse-index.c b/sparse-index.c
index 4c73772c6d..95ea17174d 100644
--- a/sparse-index.c
+++ b/sparse-index.c
@@ -172,7 +172,11 @@ int convert_to_sparse(struct index_state *istate)
istate->cache_nr = convert_to_sparse_rec(istate,
0, 0, istate->cache_nr,
"", 0, istate->cache_tree);
- istate->drop_cache_tree = 1;
+
+ /* Clear and recompute the cache-tree */
+ cache_tree_free(&istate->cache_tree);
+ cache_tree_update(istate, 0);
+
istate->sparse_index = 1;
trace2_region_leave("index", "convert_to_sparse", istate->repo);
return 0;
@@ -273,5 +277,9 @@ void ensure_full_index(struct index_state *istate)
strbuf_release(&base);
free(full);
+ /* Clear and recompute the cache-tree */
+ cache_tree_free(&istate->cache_tree);
+ cache_tree_update(istate, 0);
+
trace2_region_leave("index", "ensure_full_index", istate->repo);
}