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each_ref_fn: change to take an object_id parameter

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Change typedef each_ref_fn to take a "const struct object_id *oid"
parameter instead of "const unsigned char *sha1".

To aid this transition, implement an adapter that can be used to wrap
old-style functions matching the old typedef, which is now called
"each_ref_sha1_fn"), and make such functions callable via the new
interface. This requires the old function and its cb_data to be
wrapped in a "struct each_ref_fn_sha1_adapter", and that object to be
used as the cb_data for an adapter function, each_ref_fn_adapter().

This is an enormous diff, but most of it consists of simple,
mechanical changes to the sites that call any of the "for_each_ref"
family of functions. Subsequent to this change, the call sites can be
rewritten one by one to use the new interface.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Michael Haggerty
2015-05-25 18:38:28 +00:00
committed by Junio C Hamano
parent 8353847e85
commit 2b2a5be394
36 changed files with 275 additions and 97 deletions
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10
remote.c
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@ -2046,7 +2046,10 @@ static int one_local_ref(const char *refname, const unsigned char *sha1, int fla
struct ref *get_local_heads(void)
{
struct ref *local_refs = NULL, **local_tail = &local_refs;
for_each_ref(one_local_ref, &local_tail);
struct each_ref_fn_sha1_adapter wrapped_one_local_ref =
{one_local_ref, &local_tail};
for_each_ref(each_ref_fn_adapter, &wrapped_one_local_ref);
return local_refs;
}
@ -2141,6 +2144,9 @@ struct ref *get_stale_heads(struct refspec *refs, int ref_count, struct ref *fet
struct ref *ref, *stale_refs = NULL;
struct string_list ref_names = STRING_LIST_INIT_NODUP;
struct stale_heads_info info;
struct each_ref_fn_sha1_adapter wrapped_get_stale_heads_cb =
{get_stale_heads_cb, &info};
info.ref_names = &ref_names;
info.stale_refs_tail = &stale_refs;
info.refs = refs;
@ -2148,7 +2154,7 @@ struct ref *get_stale_heads(struct refspec *refs, int ref_count, struct ref *fet
for (ref = fetch_map; ref; ref = ref->next)
string_list_append(&ref_names, ref->name);
string_list_sort(&ref_names);
for_each_ref(get_stale_heads_cb, &info);
for_each_ref(each_ref_fn_adapter, &wrapped_get_stale_heads_cb);
string_list_clear(&ref_names, 0);
return stale_refs;
}