From: Victoria Dye <vdye@xxxxxxxxxx>
Replace unconditional index expansion in 'do_reupdate()' with one scoped to
only where a full index is needed. A full index is only required in
'do_reupdate()' when a sparse directory in the index differs from HEAD; in
that case, the index is expanded and the operation restarted.
Because the index should only be expanded if a sparse directory is modified,
add a test ensuring the index is not expanded when differences only exist
within the sparse cone.
Signed-off-by: Victoria Dye <vdye@xxxxxxxxxx>
---
builtin/update-index.c | 14 +++++++++++---
t/t1092-sparse-checkout-compatibility.sh | 5 ++++-
2 files changed, 15 insertions(+), 4 deletions(-)
diff --git a/builtin/update-index.c b/builtin/update-index.c
index 605cc693bbd..52ecc714d99 100644
--- a/builtin/update-index.c
+++ b/builtin/update-index.c
@@ -606,7 +606,7 @@ static struct cache_entry *read_one_ent(const char *which,
error("%s: not in %s branch.", path, which);
return NULL;
}
- if (mode == S_IFDIR) {
+ if (!the_index.sparse_index && mode == S_IFDIR) {
if (which)
error("%s: not a blob in %s branch.", path, which);
return NULL;
@@ -743,8 +743,6 @@ static int do_reupdate(int ac, const char **av,
*/
has_head = 0;
redo:
- /* TODO: audit for interaction with sparse-index. */
- ensure_full_index(&the_index);
for (pos = 0; pos < active_nr; pos++) {
const struct cache_entry *ce = active_cache[pos];
struct cache_entry *old = NULL;
@@ -761,6 +759,16 @@ static int do_reupdate(int ac, const char **av,
discard_cache_entry(old);
continue; /* unchanged */
}
+
+ /* At this point, we know the contents of the sparse directory are
+ * modified with respect to HEAD, so we expand the index and restart
+ * to process each path individually
+ */
+ if (S_ISSPARSEDIR(ce->ce_mode)) {
+ ensure_full_index(&the_index);
+ goto redo;
+ }
+
/* Be careful. The working tree may not have the
* path anymore, in which case, under 'allow_remove',
* or worse yet 'allow_replace', active_nr may decrease.
diff --git a/t/t1092-sparse-checkout-compatibility.sh b/t/t1092-sparse-checkout-compatibility.sh
index fceaba7101d..53f84881de7 100755
--- a/t/t1092-sparse-checkout-compatibility.sh
+++ b/t/t1092-sparse-checkout-compatibility.sh
@@ -1265,7 +1265,10 @@ test_expect_success 'sparse index is not expanded: update-index' '
ensure_not_expanded update-index --add README.md &&
ensure_not_expanded update-index a &&
- ensure_not_expanded update-index --remove deep/a
+ ensure_not_expanded update-index --remove deep/a &&
+
+ ensure_not_expanded reset --soft update-deep &&
+ ensure_not_expanded update-index --add --remove --again
'
test_expect_success 'sparse index is not expanded: blame' '
--
gitgitgadget
