Derrick Stolee 1fd9ae517c repository: add repo reference to index_state ...

It will be helpful to add behavior to index operations that might
trigger an object lookup. Since each index belongs to a specific
repository, add a 'repo' pointer to struct index_state that allows
access to this repository.

Add a BUG() statement if the repo already has an index, and the index
already has a repo, but somehow the index points to a different repo.

This will prevent future changes from needing to pass an additional
'struct repository *repo' parameter and instead rely only on the 'struct
index_state *istate' parameter.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

2021-01-23 17:14:07 -08:00

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