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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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9
builtin/fsck.c
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@ -504,11 +504,16 @@ static int fsck_handle_ref(const char *refname, const unsigned char *sha1, int f
static void get_default_heads(void)
{
struct each_ref_fn_sha1_adapter wrapped_fsck_handle_ref =
{fsck_handle_ref, NULL};
struct each_ref_fn_sha1_adapter wrapped_fsck_handle_reflog =
{fsck_handle_reflog, NULL};
if (head_points_at && !is_null_sha1(head_sha1))
fsck_handle_ref("HEAD", head_sha1, 0, NULL);
for_each_rawref(fsck_handle_ref, NULL);
for_each_rawref(each_ref_fn_adapter, &wrapped_fsck_handle_ref);
if (include_reflogs)
for_each_reflog(fsck_handle_reflog, NULL);
for_each_reflog(each_ref_fn_adapter, &wrapped_fsck_handle_reflog);
/*
* Not having any default heads isn't really fatal, but