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Revert "unpack_trees(): skip trees that are the same in all input" 

This reverts commit 83c90314aa, which
seems to have broken merge to report conflicts when there should be
none.
This commit is contained in:
Junio C Hamano 2011-02-15 10:47:04 -08:00
parent 3952710bfa
commit 4e363b11bd
1 changed files with 0 additions and 56 deletions
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56
unpack-trees.c
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@ -427,10 +427,6 @@ static int switch_cache_bottom(struct traverse_info *info)
return ret;
}
static int fast_forward_merge(int n, unsigned long dirmask,
struct name_entry *names,
struct traverse_info *info);
static int traverse_trees_recursive(int n, unsigned long dirmask,
unsigned long df_conflicts,
struct name_entry *names,
@ -442,11 +438,6 @@ static int traverse_trees_recursive(int n, unsigned long dirmask,
struct traverse_info newinfo;
struct name_entry *p;
if (!df_conflicts) {
int status = fast_forward_merge(n, dirmask, names, info);
if (status)
return status;
}
p = names;
while (!p->mode)
p++;
@ -694,53 +685,6 @@ static struct cache_entry *find_cache_entry(struct traverse_info *info,
return NULL;
}
static int fast_forward_merge(int n, unsigned long dirmask,
struct name_entry *names,
struct traverse_info *info)
{
int i;
struct cache_entry *src[MAX_UNPACK_TREES + 1] = { NULL, };
struct unpack_trees_options *o = info->data;
/* merging two or more trees with an identical subdirectory? */
if ((n < 2) || ((1UL << n) - 1) != dirmask ||
!o->merge || o->reset || o->initial_checkout)
return 0;
for (i = 1; i < n; i++)
if (hashcmp(names[i-1].sha1, names[i].sha1))
return 0;
/*
* Instead of descending into the directory, keep the contents
* of the current index.
*/
while (1) {
struct cache_entry *ce;
ce = next_cache_entry(o);
if (!ce)
break;
/* Is the entry still in that directory? */
if (do_compare_entry(ce, info, names))
break;
/*
* Note: we do not just run unpack_index_entry() here,
* as the callback may want to compare what is in the
* index with what are from the HEAD and the other tree
* and reject the merge. We pretend that ancestors, the
* HEAD and the other tree all have the same contents as
* the current index, which is a lie, but it works.
*/
for (i = 0; i < n + 1; i++)
src[i] = ce;
mark_ce_used(ce, o);
if (call_unpack_fn(src, o) < 0)
return unpack_failed(o, NULL);
if (ce_stage(ce))
mark_ce_used_same_name(ce, o);
}
return dirmask;
}
static void debug_path(struct traverse_info *info)
{
if (info->prev) {