fix(git): index_repository ignores .git/info/exclude and core.excludesFile inside linked git worktrees

[lg320531124]

Bug

When a repository is a linked git worktree, index_repository does not honor:

1. .git/info/exclude — the per-repo local exclude rules
2. core.excludesFile — the global git config pointing to a custom ignore file

This causes files that should be ignored (build artifacts, IDE configs, etc.) to be indexed, bloating the graph and returning irrelevant search results.

Context

Linked worktrees have a .git file (not directory) pointing to the main worktree's git dir. The exclude resolution path differs from regular repos:

• Regular: .git/info/exclude → .gitignore → core.excludesFile
• Worktree: .git → read pointer → .git/worktrees/<name>/info/exclude

Related

• fix: count INHERITS/IMPLEMENTS edges in search_graph degree #572 (recently fixed core.excludesFile support for regular repos)
• detect_changes: impacted_symbols always empty for projects inside git worktrees (canonical_root miscalculated) #659 (detect_changes also broken in worktrees)

[github-actions]

Thanks for raising this! It looks like a duplicate of an existing issue — the canonical one is linked above. Continuing the discussion there keeps everything in one place. We leave this open for visibility; a maintainer will close it once it's fully covered.

[DeusData]

Thanks. This duplicates #682, which is the canonical linked-worktree exclude handling issue. The related fix PRs are #683 and #695, so I am closing this duplicate to keep the discussion and status consolidated.