Sami Jawhar
99ecb6ca8b
Since f1141b4391 (commit-graph: refactor `parse_commit_graph()` to take
a repository, 2025-08-15), parse_commit_graph() calls
prepare_repo_settings().
The fuzzer sets settings.initialized, so that git reads no
configuration. But prepare_repo_settings() checks for a gitdir before
it reads that flag, and the repository of the fuzzer has no gitdir.
Thus each input that passes the header and the three required chunks
stops at
BUG: repo-settings.c:40: Cannot add settings for uninitialized repository
The fuzzer never reaches the code that reads the optional chunks:
generation data and changed-path Bloom filters.
Set a placeholder gitdir, as test-path-utils does.
prepare_repo_settings() checks only that the gitdir is not NULL. It
then returns, because the fuzzer marks the settings as initialized.
repo_clear() frees the gitdir, and no code opens a file under it.
Signed-off-by: Sami Jawhar <sami@theorem.dev>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Git - fast, scalable, distributed revision control system
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