Re: [PATCH] doc: enhance git describe --tags help

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Uwe Kleine-KKKnig <ukleinek@xxxxxxxxx> wrote:
> On Mon, Sep 29, 2008 at 08:01:27AM -0700, Shawn O. Pearce wrote:
> > --tags::
> > 	If a lightweight tag exactly matches, output it.  If no
> > 	annotated tag is found in the ancestry but a lightweight
> > 	tag is found, output the lightweight tag.
>
> IMHO --tags should behave as Erez expected (because it's what I
> expected, too).  As --tags currently behaves it's only usable in very
> rare cases (most of the time it only makes a difference on repos without
> any annotated tag).
> 
> When do you pass --tags?  Only if a lightweight tag is OK for an answer.
> And then I would prefer a "near" lightweight tag to a "farer" annotated
> one.

I don't disagree.  I've been tempted to write a patch to change the
behavior of git-describe so that --tags and --all control what names
are inserted into the candidate list, but don't control the ordering
of their selection.

I think this is all that is needed to make the behavior do what you
and Erez expected.  But its a pretty big change in the results if
you are passing in --all or --tags today.

--8<--
[WIP] Change meaning of --tags and --all

---
 builtin-describe.c |    6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/builtin-describe.c b/builtin-describe.c
index ec404c8..fd54fec 100644
--- a/builtin-describe.c
+++ b/builtin-describe.c
@@ -15,8 +15,8 @@ static const char * const describe_usage[] = {
 };
 
 static int debug;	/* Display lots of verbose info */
-static int all;	/* Default to annotated tags only */
-static int tags;	/* But allow any tags if --tags is specified */
+static int all;	/* Any valid ref can be used */
+static int tags;	/* Either lightweight or annotated tags */
 static int longformat;
 static int abbrev = DEFAULT_ABBREV;
 static int max_candidates = 10;
@@ -112,8 +112,6 @@ static int compare_pt(const void *a_, const void *b_)
 {
 	struct possible_tag *a = (struct possible_tag *)a_;
 	struct possible_tag *b = (struct possible_tag *)b_;
-	if (a->name->prio != b->name->prio)
-		return b->name->prio - a->name->prio;
 	if (a->depth != b->depth)
 		return a->depth - b->depth;
 	if (a->found_order != b->found_order)
-- 
1.6.0.2.513.g6dbd


-- 
Shawn.
--
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