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git-log --first-parent: show only the first parent log 

If your development history does not have fast-forward merges,
i.e. the "first parent" of commits in your history are special
than other parents, this option gives a better overview of the
evolution of a particular branch.

Signed-off-by: Junio C Hamano <junkio@cox.net>
maint
Junio C Hamano 2007-03-13 01:57:22 -07:00
parent 803527f1d9
commit 0053e902b4
2 changed files with 12 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
revision.c
View File

@ -350,6 +350,7 @@ static void add_parents_to_list(struct rev_info *revs, struct commit *commit, st
{ {
struct commit_list *parent = commit->parents; struct commit_list *parent = commit->parents;
unsigned left_flag; unsigned left_flag;
int add, rest;


if (commit->object.flags & ADDED) if (commit->object.flags & ADDED)
return; return;
@ -395,18 +396,19 @@ static void add_parents_to_list(struct rev_info *revs, struct commit *commit, st
return; return;


left_flag = (commit->object.flags & SYMMETRIC_LEFT); left_flag = (commit->object.flags & SYMMETRIC_LEFT);
parent = commit->parents;
while (parent) { rest = !revs->first_parent_only;
for (parent = commit->parents, add = 1; parent; add = rest) {
struct commit *p = parent->item; struct commit *p = parent->item;


parent = parent->next; parent = parent->next;

parse_commit(p); parse_commit(p);
p->object.flags |= left_flag; p->object.flags |= left_flag;
if (p->object.flags & SEEN) if (p->object.flags & SEEN)
continue; continue;
p->object.flags |= SEEN; p->object.flags |= SEEN;
insert_by_date(p, list); if (add)
insert_by_date(p, list);
} }
} }


@ -836,6 +838,10 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
handle_all(revs, flags); handle_all(revs, flags);
continue; continue;
} }
if (!strcmp(arg, "--first-parent")) {
revs->first_parent_only = 1;
continue;
}
if (!strcmp(arg, "--reflog")) { if (!strcmp(arg, "--reflog")) {
handle_reflog(revs, flags); handle_reflog(revs, flags);
continue; continue;

3
revision.h
View File

@ -46,7 +46,8 @@ struct rev_info {
boundary:2, boundary:2,
left_right:1, left_right:1,
parents:1, parents:1,
reverse:1; reverse:1,
first_parent_only:1;


/* Diff flags */ /* Diff flags */
unsigned int diff:1, unsigned int diff:1,