[PATCH 2/2] tag: send fully qualified refnames to verify_tag_and_format

The ref-filter code generally expects to see fully qualified
refs, so that things like "%(refname)" and "%(refname:short)"
work as expected. We can do so easily from git-tag, which
always works with refnames in the refs/tags namespace. As a
bonus, we can drop the "kind" parameter from
pretty_print_ref() and just deduce it automatically.

Unfortunately, things are not so simple for verify-tag,
which takes an arbitrary sha1 expression. It has no clue if
a refname as used or not, and whether it was in the
refs/tags namespace.

In an ideal world, get_sha1_with_context() would optionally
tell us about any refs we resolved while it was working, and
we could just feed that refname (and then in cases where we
didn't use a ref at all, like a bare sha1, we could fallback
to just showing the sha1 name the user gave us).

Signed-off-by: Jeff King <redacted>
---
I think you'd really just squash the various bits of this into your
series at the right spots, though I don't mind it on top, either.

The big question is to what degree we should care about the verify-tag
case. I don't think it's any worse off with this change than it is with
your series (its "kind" becomes "OTHER", but I don't think that is
actually used for display at all; the name remains the same). I'd be OK
with leaving it like this, as a known bug, until get_sha1_with_context()
learns to tell us about the ref. It's an unhandled corner case in a
brand-new feature, not a regression in an existing one.

 builtin/tag.c | 2 +-
 ref-filter.c  | 4 ++--
 ref-filter.h  | 6 +++++-
 tag.c         | 2 +-
 4 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/builtin/tag.c b/builtin/tag.c
index 49aeb50..18eab7e 100644
--- a/builtin/tag.c
+++ b/builtin/tag.c

@@ -114,7 +114,7 @@ static int verify_tag(const char *name, const char *ref,
 	if (fmt_pretty)
 		flags = GPG_VERIFY_QUIET;
 
-	return verify_and_format_tag(sha1, name, fmt_pretty, flags);
+	return verify_and_format_tag(sha1, ref, fmt_pretty, flags);
 }
 
 static int do_sign(struct strbuf *buffer)

diff --git a/ref-filter.c b/ref-filter.c
index 77ec9de..74da17a 100644
--- a/ref-filter.c
+++ b/ref-filter.c

@@ -1643,11 +1643,11 @@ void show_ref_array_item(struct ref_array_item *info, const char *format, int qu
 }
 
 void pretty_print_ref(const char *name, const unsigned char *sha1,
-		const char *format, unsigned kind)
+		      const char *format)
 {
 	struct ref_array_item *ref_item;
 	ref_item = new_ref_array_item(name, sha1, 0);
-	ref_item->kind = kind;
+	ref_item->kind = ref_kind_from_refname(name);
 	show_ref_array_item(ref_item, format, 0);
 	free_array_item(ref_item);
 }

diff --git a/ref-filter.h b/ref-filter.h
index 3d23090..fed2f5e 100644
--- a/ref-filter.h
+++ b/ref-filter.h

@@ -107,7 +107,11 @@ struct ref_sorting *ref_default_sorting(void);
 /*  Function to parse --merged and --no-merged options */
 int parse_opt_merge_filter(const struct option *opt, const char *arg, int unset);
 
+/*
+ * Print a single ref, outside of any ref-filter. Note that the
+ * name must be a fully qualified refname.
+ */
 void pretty_print_ref(const char *name, const unsigned char *sha1,
-		const char *format, unsigned kind);
+		      const char *format);
 
 #endif /*  REF_FILTER_H  */

diff --git a/tag.c b/tag.c
index d3512c0..d5a7cfb 100644
--- a/tag.c
+++ b/tag.c

@@ -62,7 +62,7 @@ int verify_and_format_tag(const unsigned char *sha1, const char *name,
 	free(buf);
 
 	if (fmt_pretty)
-		pretty_print_ref(name, sha1, fmt_pretty, FILTER_REFS_TAGS);
+		pretty_print_ref(name, sha1, fmt_pretty);
 
 	return ret;
 }

-- 
2.10.1.619.g16351a7