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move locate_head() to remote.c

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Move locate_head() to remote.c and rename it to guess_remote_head() to
more accurately reflect what it does. This is in preparation for being
able to call it from builtin-remote.c

Signed-off-by: Jay Soffian <jaysoffian@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jay Soffian 2009-02-25 03:32:13 -05:00 committed by Junio C Hamano
parent ec8452d5a7
commit 8ef517337d
3 changed files with 49 additions and 38 deletions
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41
builtin-clone.c
View File

@ -20,6 +20,7 @@
#include "dir.h"
#include "pack-refs.h"
#include "sigchain.h"
#include "remote.h"
/*
* Overall FIXMEs:
@ -293,43 +294,6 @@ static void remove_junk_on_signal(int signo)
raise(signo);
}
static const struct ref *locate_head(const struct ref *refs,
const struct ref *mapped_refs,
const struct ref **remote_head_p)
{
const struct ref *remote_head = NULL;
const struct ref *remote_master = NULL;
const struct ref *r;
for (r = refs; r; r = r->next)
if (!strcmp(r->name, "HEAD"))
remote_head = r;
for (r = mapped_refs; r; r = r->next)
if (!strcmp(r->name, "refs/heads/master"))
remote_master = r;
if (remote_head_p)
*remote_head_p = remote_head;
/* If there's no HEAD value at all, never mind. */
if (!remote_head)
return NULL;
/* If refs/heads/master could be right, it is. */
if (remote_master && !hashcmp(remote_master->old_sha1,
remote_head->old_sha1))
return remote_master;
/* Look for another ref that points there */
for (r = mapped_refs; r; r = r->next)
if (r != remote_head &&
!hashcmp(r->old_sha1, remote_head->old_sha1))
return r;
/* Nothing is the same */
return NULL;
}
static struct ref *write_remote_refs(const struct ref *refs,
struct refspec *refspec, const char *reflog)
{
@ -545,7 +509,8 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
mapped_refs = write_remote_refs(refs, &refspec, reflog_msg.buf);
head_points_at = locate_head(refs, mapped_refs, &remote_head);
head_points_at = guess_remote_head(refs, mapped_refs,
&remote_head);
}
else {
warning("You appear to have cloned an empty repository.");

37
remote.c
View File

@ -1451,3 +1451,40 @@ struct ref *get_local_heads(void)
for_each_ref(one_local_ref, &local_tail);
return local_refs;
}
const struct ref *guess_remote_head(const struct ref *refs,
const struct ref *mapped_refs,
const struct ref **remote_head_p)
{
const struct ref *remote_head = NULL;
const struct ref *remote_master = NULL;
const struct ref *r;
for (r = refs; r; r = r->next)
if (!strcmp(r->name, "HEAD"))
remote_head = r;
for (r = mapped_refs; r; r = r->next)
if (!strcmp(r->name, "refs/heads/master"))
remote_master = r;
if (remote_head_p)
*remote_head_p = remote_head;
/* If there's no HEAD value at all, never mind. */
if (!remote_head)
return NULL;
/* If refs/heads/master could be right, it is. */
if (remote_master && !hashcmp(remote_master->old_sha1,
remote_head->old_sha1))
return remote_master;
/* Look for another ref that points there */
for (r = mapped_refs; r; r = r->next)
if (r != remote_head &&
!hashcmp(r->old_sha1, remote_head->old_sha1))
return r;
/* Nothing is the same */
return NULL;
}

9
remote.h
View File

@ -139,4 +139,13 @@ int stat_tracking_info(struct branch *branch, int *num_ours, int *num_theirs);
int format_tracking_info(struct branch *branch, struct strbuf *sb);
struct ref *get_local_heads(void);
/*
* Look in refs for HEAD. Then look for a matching SHA1 in mapped_refs,
* first checking if refs/heads/master matches. Return NULL if nothing matches
* or if there is no HEAD in refs. remote_head_p is assigned HEAD if not NULL.
*/
const struct ref *guess_remote_head(const struct ref *refs,
const struct ref *mapped_refs,
const struct ref **remote_head_p);
#endif