Move 'builtin-*' into a 'builtin/' subdirectory

This shrinks the top-level directory a bit, and makes it much more
pleasant to use auto-completion on the thing. Instead of

	[torvalds@nehalem git]$ em buil<tab>
	Display all 180 possibilities? (y or n)
	[torvalds@nehalem git]$ em builtin-sh
	builtin-shortlog.c     builtin-show-branch.c  builtin-show-ref.c
	builtin-shortlog.o     builtin-show-branch.o  builtin-show-ref.o
	[torvalds@nehalem git]$ em builtin-shor<tab>
	builtin-shortlog.c  builtin-shortlog.o
	[torvalds@nehalem git]$ em builtin-shortlog.c

you get

	[torvalds@nehalem git]$ em buil<tab>		[type]
	builtin/   builtin.h
	[torvalds@nehalem git]$ em builtin		[auto-completes to]
	[torvalds@nehalem git]$ em builtin/sh<tab>	[type]
	shortlog.c     shortlog.o     show-branch.c  show-branch.o  show-ref.c     show-ref.o
	[torvalds@nehalem git]$ em builtin/sho		[auto-completes to]
	[torvalds@nehalem git]$ em builtin/shor<tab>	[type]
	shortlog.c  shortlog.o
	[torvalds@nehalem git]$ em builtin/shortlog.c

which doesn't seem all that different, but not having that annoying
break in "Display all 180 possibilities?" is quite a relief.

NOTE! If you do this in a clean tree (no object files etc), or using an
editor that has auto-completion rules that ignores '*.o' files, you
won't see that annoying 'Display all 180 possibilities?' message - it
will just show the choices instead.  I think bash has some cut-off
around 100 choices or something.

So the reason I see this is that I'm using an odd editory, and thus
don't have the rules to cut down on auto-completion.  But you can
simulate that by using 'ls' instead, or something similar.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 0 insertions, 58 deletions

diff --git a/builtin-update-ref.c b/builtin-update-ref.c
deleted file mode 100644
index 76ba1d5881..0000000000
--- a/builtin-update-ref.c
+++ /dev/null
@@ -1,58 +0,0 @@
-#include "cache.h"
-#include "refs.h"
-#include "builtin.h"
-#include "parse-options.h"
-
-static const char * const git_update_ref_usage[] = {
-	"git update-ref [options] -d <refname> [<oldval>]",
-	"git update-ref [options]    <refname> <newval> [<oldval>]",
-	NULL
-};
-
-int cmd_update_ref(int argc, const char **argv, const char *prefix)
-{
-	const char *refname, *oldval, *msg=NULL;
-	unsigned char sha1[20], oldsha1[20];
-	int delete = 0, no_deref = 0, flags = 0;
-	struct option options[] = {
-		OPT_STRING( 'm', NULL, &msg, "reason", "reason of the update"),
-		OPT_BOOLEAN('d', NULL, &delete, "deletes the reference"),
-		OPT_BOOLEAN( 0 , "no-deref", &no_deref,
-					"update <refname> not the one it points to"),
-		OPT_END(),
-	};
-
-	git_config(git_default_config, NULL);
-	argc = parse_options(argc, argv, prefix, options, git_update_ref_usage,
-			     0);
-	if (msg && !*msg)
-		die("Refusing to perform update with empty message.");
-
-	if (delete) {
-		if (argc < 1 || argc > 2)
-			usage_with_options(git_update_ref_usage, options);
-		refname = argv[0];
-		oldval = argv[1];
-	} else {
-		const char *value;
-		if (argc < 2 || argc > 3)
-			usage_with_options(git_update_ref_usage, options);
-		refname = argv[0];
-		value = argv[1];
-		oldval = argv[2];
-		if (get_sha1(value, sha1))
-			die("%s: not a valid SHA1", value);
-	}
-
-	hashclr(oldsha1); /* all-zero hash in case oldval is the empty string */
-	if (oldval && *oldval && get_sha1(oldval, oldsha1))
-		die("%s: not a valid old SHA1", oldval);
-
-	if (no_deref)
-		flags = REF_NODEREF;
-	if (delete)
-		return delete_ref(refname, oldval ? oldsha1 : NULL, flags);
-	else
-		return update_ref(msg, refname, sha1, oldval ? oldsha1 : NULL,
-				  flags, DIE_ON_ERR);
-}