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write_head_info(): handle "extra refs" locally

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The old code basically did:

     generate array of SHA1s for alternate refs
     for each unique SHA1 in array:
         add_extra_ref(".have", sha1)
     for each ref (including real refs and extra refs):
         show_ref(refname, sha1)

But there is no need to stuff the alternate refs in extra_refs; we can
call show_ref() directly when iterating over the array, then handle
real refs separately.  So change the code to:

     generate array of SHA1s for alternate refs
     for each unique SHA1 in array:
         show_ref(".have", sha1)
     for each ref (this now only includes real refs):
         show_ref(refname, sha1)

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Michael Haggerty 2012-01-06 15:12:33 +01:00 committed by Junio C Hamano
parent bc98201d84
commit 85f2510450
1 changed files with 3 additions and 4 deletions
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7
builtin/receive-pack.c
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@ -143,9 +143,9 @@ static int show_ref_cb(const char *path, const unsigned char *sha1, int flag, vo
return 0;
}
static void add_one_alternate_sha1(const unsigned char sha1[20], void *unused)
static void show_one_alternate_sha1(const unsigned char sha1[20], void *unused)
{
add_extra_ref(".have", sha1, 0);
show_ref(".have", sha1);
}
static void collect_one_alternate_ref(const struct ref *ref, void *data)
@ -158,12 +158,11 @@ static void write_head_info(void)
{
struct sha1_array sa = SHA1_ARRAY_INIT;
for_each_alternate_ref(collect_one_alternate_ref, &sa);
sha1_array_for_each_unique(&sa, add_one_alternate_sha1, NULL);
sha1_array_for_each_unique(&sa, show_one_alternate_sha1, NULL);
sha1_array_clear(&sa);
for_each_ref(show_ref_cb, NULL);
if (!sent_capabilities)
show_ref("capabilities^{}", null_sha1);
clear_extra_refs();
/* EOF */
packet_flush(1);