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authorLibravatar Jonathan Tan <jonathantanmy@google.com>2019-09-03 12:42:47 -0700
committerLibravatar Junio C Hamano <gitster@pobox.com>2019-09-09 14:07:35 -0700
commitf981ec18cf4a67aca98901a4c152f07e24ef3c5f (patch)
treeb569950e02e9c5d73bd199f9b3d2c3bff0bcd0ee /t
parentFirst batch after Git 2.23 (diff)
downloadtgif-f981ec18cf4a67aca98901a4c152f07e24ef3c5f.tar.xz
cache-tree: do not lazy-fetch tentative tree
The cache-tree datastructure is used to speed up the comparison between the HEAD and the index, and when the index is updated by a cherry-pick (for example), a tree object that would represent the paths in the index in a directory is constructed in-core, to see if such a tree object exists already in the object store. When the lazy-fetch mechanism was introduced, we converted this "does the tree exist?" check into an "if it does not, and if we lazily cloned, see if the remote has it" call by mistake. Since the whole point of this check is to repair the cache-tree by recording an already existing tree object opportunistically, we shouldn't even try to fetch one from the remote. Pass the OBJECT_INFO_SKIP_FETCH_OBJECT flag to make sure we only check for existence in the local object store without triggering the lazy fetch mechanism. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> [jc: rewritten the proposed log message] Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 't')
-rwxr-xr-xt/t0410-partial-clone.sh14
1 files changed, 14 insertions, 0 deletions
diff --git a/t/t0410-partial-clone.sh b/t/t0410-partial-clone.sh
index 6415063980..3e434b6a81 100755
--- a/t/t0410-partial-clone.sh
+++ b/t/t0410-partial-clone.sh
@@ -492,6 +492,20 @@ test_expect_success 'gc stops traversal when a missing but promised object is re
! grep "$TREE_HASH" out
'
+test_expect_success 'do not fetch when checking existence of tree we construct ourselves' '
+ rm -rf repo &&
+ test_create_repo repo &&
+ test_commit -C repo base &&
+ test_commit -C repo side1 &&
+ git -C repo checkout base &&
+ test_commit -C repo side2 &&
+
+ git -C repo config core.repositoryformatversion 1 &&
+ git -C repo config extensions.partialclone "arbitrary string" &&
+
+ git -C repo cherry-pick side1
+'
+
. "$TEST_DIRECTORY"/lib-httpd.sh
start_httpd