| commit | 9fadb373dd4a670e761776560d3c40f6fcc80360 | [log] [tgz] |
|---|---|---|
| author | Derrick Stolee <dstolee@microsoft.com> | Mon May 23 13:48:40 2022 +0000 |
| committer | Junio C Hamano <gitster@pobox.com> | Mon May 23 11:08:21 2022 -0700 |
| tree | 8ab4319ce1d7f80eb6bab7012ffd8afa0eeb5479 | |
| parent | dce241b020cf32c9485c7ef23247f0b003731afa [diff] |
sparse-index: introduce partially-sparse indexes A future change will present a temporary, in-memory mode where the index can both contain sparse directory entries but also not be completely collapsed to the smallest possible sparse directories. This will be necessary for modifying the sparse-checkout definition while using a sparse index. For now, convert the single-bit member 'sparse_index' in 'struct index_state' to be a an 'enum sparse_index_mode' with three modes: * INDEX_EXPANDED (0): No sparse directories exist. This is always the case for repositories that do not use cone-mode sparse-checkout. * INDEX_COLLAPSED: Sparse directories may exist. Files outside the sparse-checkout cone are reduced to sparse directory entries whenever possible. * INDEX_PARTIALLY_SPARSE: Sparse directories may exist. Some file entries outside the sparse-checkout cone may exist. Running convert_to_sparse() may further reduce those files to sparse directory entries. The main reason to store this extra information is to allow convert_to_sparse() to short-circuit when the index is already in INDEX_EXPANDED mode but to actually do the necessary work when in INDEX_PARTIALLY_SPARSE mode. The INDEX_PARTIALLY_SPARSE mode will be used in an upcoming change. Signed-off-by: Derrick Stolee <derrickstolee@github.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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