[PATCH 1/2] Teach git-describe to display distances from tags.

["Shawn O. Pearce" <spearce@spearce.org>]

Junio C Hamano <junkio@cox.net>:
> However, I suspect that we could do better with Shawn's new
> fangled describe implementation that actually counts the
> distance between what is described and the tag.  We could add
> "number of commits since the tag" somewhere, to describe:
>
>   v2.6.20-rc5-256-g419dd83
>   v2.6.20-rc5-217-gde14569
>
> to say that the first one has 256 commits accumulated since the
> given tag "v2.6.20-rc5" and the second one has only 217
> commits, to get the sense of how busy the development activity
> is.
>
> Is it useful?  That is something I am not sure.

Yes, its very useful.  If you get two different describes at different
times from a non-rewinding branch and they both come up with the same
tag name, you can tell which is the 'newer' one by distance.  This is
rather common in practice, so its incredibly useful.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
---
 builtin-describe.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/builtin-describe.c b/builtin-describe.c
index e7b8f95..d8ff621 100644
--- a/builtin-describe.c
+++ b/builtin-describe.c
@@ -189,7 +189,8 @@ static void describe(const char *arg, int last_one)
 				sha1_to_hex(gave_up_on->object.sha1));
 		}
 	}
-	printf("%s-g%s\n", all_matches[0].name->path,
+	printf("%s-%i-g%s\n", all_matches[0].name->path,
+		   all_matches[0].depth,
 		   find_unique_abbrev(cmit->object.sha1, abbrev));
 
 	if (!last_one)
-- 
1.5.0.rc2.g18af