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authorLibravatar Derrick Stolee <dstolee@microsoft.com>2021-02-02 03:01:23 +0000
committerLibravatar Junio C Hamano <gitster@pobox.com>2021-02-01 21:03:36 -0800
commitbc50d6c91f4002b4197a9f5ea5dfdc3c9f105a1c (patch)
tree27a93d26c2ffe657b35ac3b7a333a2e125c55443
parentcommit-graph: be extra careful about mixed generations (diff)
downloadtgif-bc50d6c91f4002b4197a9f5ea5dfdc3c9f105a1c.tar.xz
commit-graph: prepare commit graph
Before checking if the repository has a commit-graph loaded, be sure to run prepare_commit_graph(). This is necessary because otherwise the topo_levels slab is not initialized. As we compute topo_levels for the new commits, we iterate further into the lower layers since the first visit to each commit looks as though the topo_level is not populated. By properly initializing the topo_slab, we fix the previously broken case of a split commit graph where a base layer has the generation_data_overflow chunk. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Reviewed-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--commit-graph.c10
-rwxr-xr-xt/t5318-commit-graph.sh2
2 files changed, 3 insertions, 9 deletions
diff --git a/commit-graph.c b/commit-graph.c
index ee8d5a0cdb..94d3ab4a04 100644
--- a/commit-graph.c
+++ b/commit-graph.c
@@ -2348,6 +2348,7 @@ int write_commit_graph(struct object_directory *odb,
init_topo_level_slab(&topo_levels);
ctx->topo_levels = &topo_levels;
+ prepare_commit_graph(ctx->r);
if (ctx->r->objects->commit_graph) {
struct commit_graph *g = ctx->r->objects->commit_graph;
@@ -2361,7 +2362,6 @@ int write_commit_graph(struct object_directory *odb,
ctx->changed_paths = 1;
if (!(flags & COMMIT_GRAPH_NO_WRITE_BLOOM_FILTERS)) {
struct commit_graph *g;
- prepare_commit_graph_one(ctx->r, ctx->odb);
g = ctx->r->objects->commit_graph;
@@ -2373,10 +2373,7 @@ int write_commit_graph(struct object_directory *odb,
}
if (ctx->split) {
- struct commit_graph *g;
- prepare_commit_graph(ctx->r);
-
- g = ctx->r->objects->commit_graph;
+ struct commit_graph *g = ctx->r->objects->commit_graph;
while (g) {
ctx->num_commit_graphs_before++;
@@ -2400,9 +2397,6 @@ int write_commit_graph(struct object_directory *odb,
ctx->approx_nr_objects = approximate_object_count();
- if (ctx->append)
- prepare_commit_graph_one(ctx->r, ctx->odb);
-
if (ctx->append && ctx->r->objects->commit_graph) {
struct commit_graph *g = ctx->r->objects->commit_graph;
for (i = 0; i < g->num_commits; i++) {
diff --git a/t/t5318-commit-graph.sh b/t/t5318-commit-graph.sh
index 2cf29f425a..5b15f1aa0f 100755
--- a/t/t5318-commit-graph.sh
+++ b/t/t5318-commit-graph.sh
@@ -446,7 +446,7 @@ test_expect_success 'warn on improper hash version' '
)
'
-test_expect_failure 'lower layers have overflow chunk' '
+test_expect_success 'lower layers have overflow chunk' '
cd "$TRASH_DIRECTORY/full" &&
UNIX_EPOCH_ZERO="@0 +0000" &&
FUTURE_DATE="@2147483646 +0000" &&