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commit-graph: verify required chunks are present

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The commit-graph file requires the following three chunks:

* OID Fanout
* OID Lookup
* Commit Data

If any of these are missing, then the 'verify' subcommand should
report a failure. This includes the chunk IDs malformed or the
chunk count is truncated.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Derrick Stolee
2018-06-27 09:24:34 -04:00
committed by Junio C Hamano
parent d9b9f8a6fd
commit 2bd0365f37
2 changed files with 38 additions and 0 deletions
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9
commit-graph.c
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@ -848,5 +848,14 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
return 1;
}
verify_commit_graph_error = 0;
if (!g->chunk_oid_fanout)
graph_report("commit-graph is missing the OID Fanout chunk");
if (!g->chunk_oid_lookup)
graph_report("commit-graph is missing the OID Lookup chunk");
if (!g->chunk_commit_data)
graph_report("commit-graph is missing the Commit Data chunk");
return verify_commit_graph_error;
}