Re: git-log to go forward instead of reverse?
- From
Linus Torvalds <torvalds@osdl.org>
- Date
- Jul 10, 2006, 19:01 UTC
- Message-ID
- <Pine.LNX.4.64.0607101151470.5623@g5.osdl.org>
- In-Reply-To
- <86bqrxpai1.fsf@blue.stonehenge.com>
On Mon, 10 Jul 2006, Randal L. Schwartz wrote:
> > Am I missing an option to have git-log go forward in time rather than > backward? I'd really like "git-log --pretty=short ORIG_HEAD..HEAD" to show me > a story I can read. :)
Well, as long as you realize that that automatically means that you have to walk the whole commit list, and you won't be able to get the incremental output that git-log and friends normally are able to give?
But this patch should do it. With it,
git log --reverse --pretty=short ORIG_HEAD..
should do what you want.
It is _not_ possible to reverse the "gitk" view with this patch, though, as this does _not_ reverse parenthood information.
The "--reverse" flag could possibly be renamed.
Linus
---
diff --git a/revision.c b/revision.c index 7df9089..13a3e40 100644 --- a/revision.c +++ b/revision.c @@ -698,6 +698,10 @@ int setup_revisions(int argc, const char revs->topo_order = 1; continue; } + if (!strcmp(arg, "--reverse")) { + revs->reverse ^= 1; + continue; + } if (!strcmp(arg, "--parents")) { revs->parents = 1; continue; @@ -921,7 +925,7 @@ int setup_revisions(int argc, const char add_pending_object(revs, object, def); } - if (revs->topo_order || revs->unpacked) + if (revs->topo_order || revs->unpacked || revs->reverse) revs->limited = 1; if (revs->prune_data) { @@ -941,6 +945,19 @@ int setup_revisions(int argc, const char return left; } +static struct commit_list *reverse_commit_list(struct commit_list *p) +{ + struct commit_list *result = NULL; + + while (p) { + struct commit_list *next = p->next; + p->next = result; + result = p; + p = next; + } + return result; +} + void prepare_revision_walk(struct rev_info *revs) { int nr = revs->pending.nr; @@ -968,6 +985,8 @@ void prepare_revision_walk(struct rev_in sort_in_topological_order_fn(&revs->commits, revs->lifo, revs->topo_setter, revs->topo_getter); + if (revs->reverse) + revs->commits = reverse_commit_list(revs->commits); } static int rewrite_one(struct rev_info *revs, struct commit **pp) diff --git a/revision.h b/revision.h index c010a08..ff6ce44 100644 --- a/revision.h +++ b/revision.h @@ -32,6 +32,7 @@ struct rev_info { remove_empty_trees:1, simplify_history:1, lifo:1, + reverse:1, topo_order:1, tag_objects:1, tree_objects:1,