return 0;
}
+static int graph_read_oid_fanout(const unsigned char *chunk_start,
+ size_t chunk_size, void *data)
+{
+ struct commit_graph *g = data;
+ if (chunk_size != 256 * sizeof(uint32_t))
+ return error("commit-graph oid fanout chunk is wrong size");
+ g->chunk_oid_fanout = (const uint32_t *)chunk_start;
+ return 0;
+}
+
static int graph_read_oid_lookup(const unsigned char *chunk_start,
size_t chunk_size, void *data)
{
GRAPH_HEADER_SIZE, graph->num_chunks))
goto free_and_return;
- pair_chunk_unsafe(cf, GRAPH_CHUNKID_OIDFANOUT,
- (const unsigned char **)&graph->chunk_oid_fanout);
+ read_chunk(cf, GRAPH_CHUNKID_OIDFANOUT, graph_read_oid_fanout, graph);
read_chunk(cf, GRAPH_CHUNKID_OIDLOOKUP, graph_read_oid_lookup, graph);
pair_chunk_unsafe(cf, GRAPH_CHUNKID_DATA, &graph->chunk_commit_data);
pair_chunk_unsafe(cf, GRAPH_CHUNKID_EXTRAEDGES, &graph->chunk_extra_edges);
test_description='commit graph'
. ./test-lib.sh
+. "$TEST_DIRECTORY"/lib-chunk.sh
GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS=0
)
'
+corrupt_chunk () {
+ graph=full/.git/objects/info/commit-graph &&
+ test_when_finished "rm -rf $graph" &&
+ git -C full commit-graph write --reachable &&
+ corrupt_chunk_file $graph "$@"
+}
+
+check_corrupt_chunk () {
+ corrupt_chunk "$@" &&
+ git -C full -c core.commitGraph=false log >expect.out &&
+ git -C full -c core.commitGraph=true log >out 2>err &&
+ test_cmp expect.out out
+}
+
+test_expect_success 'reader notices too-small oid fanout chunk' '
+ # make it big enough that the graph file is plausible,
+ # otherwise we hit an earlier check
+ check_corrupt_chunk OIDF clear $(printf "000000%02x" $(test_seq 250)) &&
+ cat >expect.err <<-\EOF &&
+ error: commit-graph oid fanout chunk is wrong size
+ error: commit-graph is missing the OID Fanout chunk
+ EOF
+ test_cmp expect.err err
+'
+
test_done