[PATCH 23/27] submodule: die_path_inside_submodule is sparse aware

["Derrick Stolee via GitGitGadget" <gitgitgadget@xxxxxxxxx>]

From: Derrick Stolee <dstolee@xxxxxxxxxxxxx>

Since we already do not collapse a sparse directory if it contains a
submodule, we don't need to expand to a full index in
die_path_inside_submodule(). A simple scan of the index entries is
sufficient.

Signed-off-by: Derrick Stolee <dstolee@xxxxxxxxxxxxx>
---
 submodule.c                              |  2 --
 t/t1092-sparse-checkout-compatibility.sh | 24 +++++++++++-------------
 2 files changed, 11 insertions(+), 15 deletions(-)

diff --git a/submodule.c b/submodule.c
index f80cfddbd52..487d083e4ef 100644
--- a/submodule.c
+++ b/submodule.c
@@ -346,8 +346,6 @@ void die_path_inside_submodule(struct index_state *istate,
 {
 	int i, j;
 
-	ensure_full_index(istate);
-
 	for (i = 0; i < istate->cache_nr; i++) {
 		struct cache_entry *ce = istate->cache[i];
 		int ce_len = ce_namelen(ce);
diff --git a/t/t1092-sparse-checkout-compatibility.sh b/t/t1092-sparse-checkout-compatibility.sh
index ae594ab880c..2e8efe6ab37 100755
--- a/t/t1092-sparse-checkout-compatibility.sh
+++ b/t/t1092-sparse-checkout-compatibility.sh
@@ -390,29 +390,27 @@ test_expect_success 'sparse-index is expanded and converted back' '
 	GIT_TRACE2_EVENT="$(pwd)/trace2.txt" GIT_TRACE2_EVENT_NESTING=10 \
 		git -C sparse-index -c core.fsmonitor="" reset --hard &&
 	test_region index convert_to_sparse trace2.txt &&
-	test_region index ensure_full_index trace2.txt &&
+	test_region index ensure_full_index trace2.txt
+'
+
+test_expect_success 'sparse-index is not expanded' '
+	init_repos &&
+
+	rm -f trace2.txt &&
+	GIT_TRACE2_EVENT="$(pwd)/trace2.txt" GIT_TRACE2_EVENT_NESTING=10 \
+		git -C sparse-index -c core.fsmonitor="" status -uno &&
+	test_region ! index ensure_full_index trace2.txt &&
 
 	rm trace2.txt &&
 	echo >>sparse-index/README.md &&
 	GIT_TRACE2_EVENT="$(pwd)/trace2.txt" GIT_TRACE2_EVENT_NESTING=10 \
 		git -C sparse-index -c core.fsmonitor="" add -A &&
-	test_region index convert_to_sparse trace2.txt &&
-	test_region index ensure_full_index trace2.txt &&
+	test_region ! index ensure_full_index trace2.txt &&
 
 	rm trace2.txt &&
 	echo >>sparse-index/extra.txt &&
 	GIT_TRACE2_EVENT="$(pwd)/trace2.txt" GIT_TRACE2_EVENT_NESTING=10 \
 		git -C sparse-index -c core.fsmonitor="" add extra.txt &&
-	test_region index convert_to_sparse trace2.txt &&
-	test_region index ensure_full_index trace2.txt
-'
-
-test_expect_success 'sparse-index is not expanded' '
-	init_repos &&
-
-	rm -f trace2.txt &&
-	GIT_TRACE2_EVENT="$(pwd)/trace2.txt" GIT_TRACE2_EVENT_NESTING=10 \
-		git -C sparse-index -c core.fsmonitor="" status -uno &&
 	test_region ! index ensure_full_index trace2.txt
 '
 
-- 
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