diff options
Diffstat (limited to 'commit-reach.h')
| -rw-r--r-- | commit-reach.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/commit-reach.h b/commit-reach.h index bf63cc468f..9a745b7e17 100644 --- a/commit-reach.h +++ b/commit-reach.h @@ -139,4 +139,21 @@ void tips_reachable_from_bases(struct repository *r, struct commit **tips, size_t tips_nr, int mark); +/* + * Given a 'tip' commit and a list potential 'bases', return the index 'i' that + * minimizes the number of commits in the first-parent history of 'tip' and not + * in the first-parent history of 'bases[i]'. + * + * Among a list of long-lived branches that are updated only by merges (with the + * first parent being the previous position of the branch), this would inform + * which branch was used to create the tip reference. + * + * Returns -1 if no common point is found in first-parent histories, which is + * rare, but possible with multiple root commits. + */ +int get_branch_base_for_tip(struct repository *r, + struct commit *tip, + struct commit **bases, + size_t bases_nr); + #endif |