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| author | Victoria Dye <vdye@github.com> | 2022-01-11 18:05:05 +0000 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2022-01-13 13:49:45 -0800 |
| commit | c35e9f5ecd00f0c003dc9120d3c68e95e2ba3bd7 (patch) | |
| tree | fa30893d645bb25b851734d85d6823893eb36b89 /read-cache.c | |
| parent | e015d4d9614f728cc454900fde52af2076d5ef63 (diff) | |
| download | git-c35e9f5ecd00f0c003dc9120d3c68e95e2ba3bd7.tar.gz | |
update-index: integrate with sparse index
Enable use of the sparse index with `update-index`. Most variations of
`update-index` work without explicitly expanding the index or making any
other updates in or outside of `update-index.c`.
The one usage requiring additional changes is `--cacheinfo`; if a file
inside a sparse directory was specified, the index would not be expanded
until after the cache tree is invalidated, leading to a mismatch between the
index and cache tree. This scenario is handled by rearranging
`add_index_entry_with_check`, allowing `index_name_stage_pos` to expand the
index *before* attempting to invalidate the relevant cache tree path,
avoiding cache tree/index corruption.
Signed-off-by: Victoria Dye <vdye@github.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'read-cache.c')
| -rw-r--r-- | read-cache.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/read-cache.c b/read-cache.c index cbe73f14e5..b4600e954b 100644 --- a/read-cache.c +++ b/read-cache.c @@ -1339,9 +1339,6 @@ static int add_index_entry_with_check(struct index_state *istate, struct cache_e int skip_df_check = option & ADD_CACHE_SKIP_DFCHECK; int new_only = option & ADD_CACHE_NEW_ONLY; - if (!(option & ADD_CACHE_KEEP_CACHE_TREE)) - cache_tree_invalidate_path(istate, ce->name); - /* * If this entry's path sorts after the last entry in the index, * we can avoid searching for it. @@ -1352,6 +1349,13 @@ static int add_index_entry_with_check(struct index_state *istate, struct cache_e else pos = index_name_stage_pos(istate, ce->name, ce_namelen(ce), ce_stage(ce), EXPAND_SPARSE); + /* + * Cache tree path should be invalidated only after index_name_stage_pos, + * in case it expands a sparse index. + */ + if (!(option & ADD_CACHE_KEEP_CACHE_TREE)) + cache_tree_invalidate_path(istate, ce->name); + /* existing match? Just replace it. */ if (pos >= 0) { if (!new_only) |