* fix(discover): honor .git/info/exclude during file discovery
index_repository only loaded .gitignore when building the exclusion
matcher. .git/info/exclude — the per-clone exclude file that Git treats
as authoritative — was never read, so paths excluded only there were
walked in full. On repos with Sandcastle worktrees this caused the
indexer to traverse 661K files / 170 GB and OOM (issue #489).
Add cbm_gitignore_merge() to append patterns from one matcher into
another. In cbm_discover_ex, after loading .gitignore, also load
.git/info/exclude and merge its patterns in. If only the exclude file
exists, use it directly. No downstream call paths change.
Add three unit tests for cbm_gitignore_merge and two integration tests
that reproduce the issue scenario (exclude-only and exclude-stacked-
with-gitignore).
Signed-off-by: ShauryaaSharma <shauryasofficial27@gmail.com>
* style(discover): fix clang-format alignment in cbm_gitignore_merge
Signed-off-by: ShauryaaSharma <shauryasofficial27@gmail.com>
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Signed-off-by: ShauryaaSharma <shauryasofficial27@gmail.com>
Shaurya
11009f2d94