revlist.c: introduce --left/right-only for unsymmetric picking

The existing "--cherry-pick" does not work with unsymmetric ranges
(A..B) for obvious reasons.

Introduce "--left-only" and "--right-only" which limit the output to
commits on the respective sides of a symmetric range (i.e. only "<"
resp. ">" commits as per "--left-right").

This is especially useful for things like

    git log --cherry-pick --right-only @{u}...

which is much more flexible (and descriptive) than

    git cherry @{u} | sed -ne 's/^+ //p'

and potentially more useful than

    git log --cherry-pick @{u}...

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Michael J Gruber 2011-02-21 17:09:11 +01:00 committed by Junio C Hamano
parent 7ed863a85a
commit 60adf7d73e
2 changed files with 26 additions and 0 deletions

View File

@ -733,6 +733,23 @@ static struct commit_list *collect_bottom_commits(struct commit_list *list)
return bottom;
}
/* Assumes either left_only or right_only is set */
static void limit_left_right(struct commit_list *list, struct rev_info *revs)
{
struct commit_list *p;
for (p = list; p; p = p->next) {
struct commit *commit = p->item;
if (revs->right_only) {
if (commit->object.flags & SYMMETRIC_LEFT)
commit->object.flags |= SHOWN;
} else /* revs->left_only is set */
if (!(commit->object.flags & SYMMETRIC_LEFT))
commit->object.flags |= SHOWN;
}
}
static int limit_list(struct rev_info *revs)
{
int slop = SLOP;
@ -788,6 +805,9 @@ static int limit_list(struct rev_info *revs)
if (revs->cherry_pick)
cherry_pick_list(newlist, revs);
if (revs->left_only || revs->right_only)
limit_left_right(newlist, revs);
if (bottom) {
limit_to_ancestry(bottom, newlist);
free_commit_list(bottom);
@ -1263,6 +1283,10 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
revs->boundary = 1;
} else if (!strcmp(arg, "--left-right")) {
revs->left_right = 1;
} else if (!strcmp(arg, "--left-only")) {
revs->left_only = 1;
} else if (!strcmp(arg, "--right-only")) {
revs->right_only = 1;
} else if (!strcmp(arg, "--count")) {
revs->count = 1;
} else if (!strcmp(arg, "--cherry-pick")) {

View File

@ -59,6 +59,8 @@ struct rev_info {
boundary:2,
count:1,
left_right:1,
left_only:1,
right_only:1,
rewrite_parents:1,
print_parents:1,
show_source:1,