With 59c35fac54 (refs/packed-backend.c: implement jump lists to avoid excluded pattern(s), 2023-07-10) we have implemented logic to handle excluded refs more efficiently in the "packed" ref backend. This logic allows us to skip emitting refs completely which we know to not be of any interest to the caller, which can avoid quite some allocations and object lookups. This was wired up via a new `exclude_patterns` parameter passed to the backend's ref iterator. The backend only needs to handle them on a best effort basis though, and in fact we only handle it for the "packed-refs" file, but not for loose references. Consequently, all callers must still filter emitted refs with those exclude patterns. The result is that handling exclude patterns is completely optional in the ref backend, and any future backends may or may not implement it. Let's thus mark the test for t1419 to depend on the REFFILES prereq. An alternative would be to introduce a new prereq that tells us whether the backend under test supports exclude patterns or not. But this does feel a bit overblown: - It would either map to the REFFILES prereq, in which case it feels overengineered because the prereq is only ever relevant to t1419. - Otherwise, it could auto-detect whether the backend supports exclude patterns. But this could lead to silent failures in case the support for this feature breaks at any point in time. It should thus be good enough to just use the REFFILES prereq for now. If future backends ever grow support for exclude patterns we can easily add their respective prereq as another condition for this test suite to execute. Signed-off-by: Patrick Steinhardt --- t/t1419-exclude-refs.sh | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/t/t1419-exclude-refs.sh b/t/t1419-exclude-refs.sh index 5d8c86b657..1359574419 100755 --- a/t/t1419-exclude-refs.sh +++ b/t/t1419-exclude-refs.sh @@ -8,6 +8,12 @@ export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh +if test_have_prereq !REFFILES +then + skip_all='skipping `git for-each-ref --exclude` tests; need files backend' + test_done +fi + for_each_ref__exclude () { GIT_TRACE2_PERF=1 test-tool ref-store main \ for-each-ref--exclude "$@" >actual.raw -- 2.43.GIT