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commit-graph: introduce ensure_generations_valid()

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Use the just-introduced compute_reachable_generation_numbers_1() to
implement a function which dynamically computes topological levels (or
corrected commit dates) for out-of-graph commits.

This will be useful for the ahead-behind algorithm we are about to
introduce, which needs accurate topological levels on _all_ commits
reachable from the tips in order to avoid over-counting.

Co-authored-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Taylor Blau
2023-03-20 11:26:52 +00:00
committed by Junio C Hamano
parent 2ee11f7261
commit c08645b353
2 changed files with 37 additions and 0 deletions
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8
commit-graph.h
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@ -190,4 +190,12 @@ struct commit_graph_data {
*/
timestamp_t commit_graph_generation(const struct commit *);
uint32_t commit_graph_position(const struct commit *);
/*
* After this method, all commits reachable from those in the given
* list will have non-zero, non-infinite generation numbers.
*/
void ensure_generations_valid(struct repository *r,
struct commit **commits, size_t nr);
#endif