From ea5ed3abce724725360be88663cec1add7547d46 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 5 Mar 2006 09:53:52 -0800 Subject: [PATCH] get_revision(): do not dig deeper when we know we are at the end. This resurrects the special casing for "rev-list -n 1" which avoided reading parents unnecessarily. Signed-off-by: Junio C Hamano --- revision.c | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) diff --git a/revision.c b/revision.c index a3df8100..2a33637f 100644 --- a/revision.c +++ b/revision.c @@ -684,13 +684,11 @@ static void rewrite_parents(struct commit *commit) struct commit *get_revision(struct rev_info *revs) { struct commit_list *list = revs->commits; - struct commit *commit; if (!list) return NULL; /* Check the max_count ... */ - commit = list->item; switch (revs->max_count) { case -1: break; @@ -701,22 +699,28 @@ struct commit *get_revision(struct rev_info *revs) } do { - commit = pop_most_recent_commit(&revs->commits, SEEN); + struct commit *commit = revs->commits->item; + if (commit->object.flags & (UNINTERESTING|SHOWN)) - continue; + goto next; if (revs->min_age != -1 && (commit->date > revs->min_age)) - continue; + goto next; if (revs->max_age != -1 && (commit->date < revs->max_age)) return NULL; if (revs->no_merges && commit->parents && commit->parents->next) - continue; + goto next; if (revs->paths && revs->dense) { if (!(commit->object.flags & TREECHANGE)) - continue; + goto next; rewrite_parents(commit); } + /* More to go? */ + if (revs->max_count) + pop_most_recent_commit(&revs->commits, SEEN); commit->object.flags |= SHOWN; return commit; +next: + pop_most_recent_commit(&revs->commits, SEEN); } while (revs->commits); return NULL; } -- 2.11.0