[PATCH v4 14/15] revision.c: don't show all merges for --parents
- From
Kevin Bracey <kevin@bracey.fi>
- Date
- May 16, 2013, 15:32 UTC
- Message-ID
- <1368718361-27859-15-git-send-email-kevin@bracey.fi>
- In-Reply-To
- <1368718361-27859-1-git-send-email-kevin@bracey.fi>
When using --parents or --children, get_commit_action() previously showed all merges, even if TREESAME to both parents.
This was intended to tie together the topology of the rewritten parents, but it was excessive - in fact we only need to show merges that have two or more relevant parents. Merges at the boundary do not necessarily need to be shown.
Signed-off-by: Kevin Bracey <kevin@bracey.fi> --- revision.c | 22 +++++++++++++++------- t/t6111-rev-list-treesame.sh | 4 ++-- 2 files changed, 17 insertions(+), 9 deletions(-)
diff --git a/revision.c b/revision.c index 1c75070..edb7e1c 100644 --- a/revision.c +++ b/revision.c @@ -2760,10 +2760,7 @@ enum commit_action get_commit_action(struct rev_info *revs, struct commit *commi if (revs->min_age != -1 && (commit->date > revs->min_age)) return commit_ignore; if (revs->min_parents || (revs->max_parents >= 0)) { - int n = 0; - struct commit_list *p; - for (p = commit->parents; p; p = p->next) - n++; + int n = commit_list_count(commit->parents); if ((n < revs->min_parents) || ((revs->max_parents >= 0) && (n > revs->max_parents))) return commit_ignore; @@ -2773,12 +2770,23 @@ enum commit_action get_commit_action(struct rev_info *revs, struct commit *commi if (revs->prune && revs->dense) { /* Commit without changes? */ if (commit->object.flags & TREESAME) { + int n; + struct commit_list *p; /* drop merges unless we want parenthood */ if (!want_ancestry(revs)) return commit_ignore; - /* non-merge - always ignore it */ - if (!commit->parents || !commit->parents->next) - return commit_ignore; + /* + * If we want ancestry, then need to keep any merges + * between relevant commits to tie together topology. + * For consistency with TREESAME and simplification + * use "relevant" here rather than just INTERESTING, + * to treat bottom commit(s) as part of the topology. + */ + for (n = 0, p = commit->parents; p; p = p->next) + if (relevant_commit(p->item)) + if (++n >= 2) + return commit_show; + return commit_ignore; } } return commit_show; diff --git a/t/t6111-rev-list-treesame.sh b/t/t6111-rev-list-treesame.sh index e32b373..25cc8ad 100755 --- a/t/t6111-rev-list-treesame.sh +++ b/t/t6111-rev-list-treesame.sh @@ -139,7 +139,7 @@ check_result 'M L G' F..M --first-parent -- file # If we want history since E, then we're quite happy to ignore G that took E. check_result 'M L K J I H G' E..M --ancestry-path check_result 'M L J I H' E..M --ancestry-path -- file -check_outcome failure '(LH)M (K)L (EJ)K (I)J (E)I (E)H' E..M --ancestry-path --parents -- file # includes G +check_result '(LH)M (K)L (EJ)K (I)J (E)I (E)H' E..M --ancestry-path --parents -- file check_result '(LH)M (E)H (J)L (I)J (E)I' E..M --ancestry-path --simplify-merges -- file # Should still be able to ignore I-J branch in simple log, despite limiting @@ -168,7 +168,7 @@ check_result '(D)F (BA)D' B..F --full-history --parents -- file check_result '(B)F' B..F --simplify-merges -- file check_result 'F D' B..F --ancestry-path check_result 'F' B..F --ancestry-path -- file -check_outcome failure 'F' B..F --ancestry-path --parents -- file # includes D +check_result 'F' B..F --ancestry-path --parents -- file check_result 'F' B..F --ancestry-path --simplify-merges -- file check_result 'F D' B..F --first-parent check_result 'F' B..F --first-parent -- file
-- 1.8.3.rc0.28.g4b02ef5