[PATCH 1/5] t/perf: fix benchmarks with alternate repo formats
- From
Patrick Steinhardt <ps@pks.im>
- Date
- Mar 31, 2025, 06:16 UTC
- Message-ID
- <20250331-pks-meson-benchmarks-v1-1-b2ace85616a3@pks.im>
- In-Reply-To
- <20250331-pks-meson-benchmarks-v1-0-b2ace85616a3@pks.im>
Many of our benchmarks operate on a user-defined repository that we copy over before running the benchmarked logic. To keep unintentional side effects caused by on-disk state at bay we skip copying some files. This includes for example hooks, but also the repo's configuration.
It is quite sensible to not copy over the configuration, as it is quite easy to inadvertently carry over configuration that may significantly impact the performance measurements. But we cannot fully ignore the configuration either, as it may contain information about the repository format. This will cause failures when for example using a repository with SHA256 object format or the reftable ref format.
Fix the issue by parsing the reference and object formats from the source repository and passing them to git-init(1).
Signed-off-by: Patrick Steinhardt <ps@pks.im> --- t/perf/perf-lib.sh | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/t/perf/perf-lib.sh b/t/perf/perf-lib.sh index 8ab6d9c4694..1a9a51ca3cc 100644 --- a/t/perf/perf-lib.sh +++ b/t/perf/perf-lib.sh @@ -98,6 +98,8 @@ test_perf_create_repo_from () { source_git="$("$MODERN_GIT" -C "$source" rev-parse --git-dir)" objects_dir="$("$MODERN_GIT" -C "$source" rev-parse --git-path objects)" common_dir="$("$MODERN_GIT" -C "$source" rev-parse --git-common-dir)" + refformat="$("$MODERN_GIT" -C "$source" rev-parse --show-ref-format)" + objectformat="$("$MODERN_GIT" -C "$source" rev-parse --show-object-format)" mkdir -p "$repo/.git" ( cd "$source" && @@ -114,7 +116,7 @@ test_perf_create_repo_from () { ) && ( cd "$repo" && - "$MODERN_GIT" init -q && + "$MODERN_GIT" init -q --ref-format="$refformat" --object-format="$objectformat" && test_perf_do_repo_symlink_config_ && mv .git/hooks .git/hooks-disabled 2>/dev/null && if test -f .git/index.lock
-- 2.49.0.604.gff1f9ca942.dirty