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[v2,4/7] sparse-index: recompute cache-tree

Message ID 65e79b8037ca0268363db9ff967c1342a76485c5.1626812081.git.gitgitgadget@gmail.com (mailing list archive)
State Accepted
Commit f934f1b47fb56d18b2b81d9288590e03e9a0ed23
Headers show
Series Sparse index: integrate with commit and checkout | expand

Commit Message

Derrick Stolee July 20, 2021, 8:14 p.m. UTC 
From: Derrick Stolee <dstolee@microsoft.com>

When some commands run with command_requires_full_index=1, then the
index can get in a state where the in-memory cache tree is actually
equal to the sparse index's cache tree instead of the full one.

This results in incorrect entry_count values. By clearing the cache
tree before converting to sparse, we avoid this issue.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
---
 sparse-index.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/sparse-index.c b/sparse-index.c
index 53c8f711ccc..c6b4feec413 100644
--- a/sparse-index.c
+++ b/sparse-index.c
@@ -170,6 +170,8 @@  int convert_to_sparse(struct index_state *istate)
 	if (index_has_unmerged_entries(istate))
 		return 0;
 
+	/* Clear and recompute the cache-tree */
+	cache_tree_free(&istate->cache_tree);
 	if (cache_tree_update(istate, 0)) {
 		warning(_("unable to update cache-tree, staying full"));
 		return -1;