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cache-tree: verify valid cache-tree in the test suite

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This makes sure that cache-tree is consistent with the index. The main
purpose is to catch potential problems by saving the index in
unpack_trees() but the line in write_index() would also help spot
missing invalidation in other code.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy
2018-08-18 16:41:28 +02:00
committed by Junio C Hamano
parent 5697ca9aa5
commit 4592e6080f
5 changed files with 90 additions and 0 deletions
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2
unpack-trees.c
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@ -1578,6 +1578,8 @@ int unpack_trees(unsigned len, struct tree_desc *t, struct unpack_trees_options
if (o->dst_index) {
move_index_extensions(&o->result, o->src_index);
if (!ret) {
if (git_env_bool("GIT_TEST_CHECK_CACHE_TREE", 0))
cache_tree_verify(&o->result);
if (!o->result.cache_tree)
o->result.cache_tree = cache_tree();
if (!cache_tree_fully_valid(o->result.cache_tree))