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Merge pull request #2634 from libgit2/cmn/tree-cache-count

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tree-cache: correct the entry_count calculation
This commit is contained in:
Edward Thomson 2014-10-22 14:45:36 -07:00
commit 89244e7ff9
2 changed files with 9 additions and 36 deletions
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35
src/tree-cache.c
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@ -191,8 +191,10 @@ static int read_tree_recursive(git_tree_cache *cache, const git_tree *tree, git_
git_tree *subtree;
entry = git_tree_entry_byindex(tree, i);
if (git_tree_entry_filemode(entry) != GIT_FILEMODE_TREE)
if (git_tree_entry_filemode(entry) != GIT_FILEMODE_TREE) {
cache->entry_count++;
continue;
}
if ((error = git_tree_cache_new(&cache->children[j], git_tree_entry_name(entry), pool)) < 0)
return error;
@ -202,6 +204,7 @@ static int read_tree_recursive(git_tree_cache *cache, const git_tree *tree, git_
error = read_tree_recursive(cache->children[j], subtree, pool);
git_tree_free(subtree);
cache->entry_count += cache->children[j]->entry_count;
j++;
if (error < 0)
@ -245,35 +248,6 @@ int git_tree_cache_new(git_tree_cache **out, const char *name, git_pool *pool)
return 0;
}
/**
* Recursively recalculate the total entry count, which we need to
* write out to the index
*/
static void recount_entries(git_tree_cache *tree)
{
size_t i;
ssize_t entry_count;
git_tree_cache *child;
for (i = 0; i < tree->children_count; i++)
recount_entries(tree->children[i]);
if (tree->entry_count == -1)
return;
entry_count = 0;
for (i = 0; i < tree->children_count; i++) {
child = tree->children[i];
if (child->entry_count == -1)
continue;
entry_count += tree->children[i]->children_count;
}
tree->entry_count = entry_count;
}
static void write_tree(git_buf *out, git_tree_cache *tree)
{
size_t i;
@ -289,7 +263,6 @@ static void write_tree(git_buf *out, git_tree_cache *tree)
int git_tree_cache_write(git_buf *out, git_tree_cache *tree)
{
recount_entries(tree);
write_tree(out, tree);
return git_buf_oom(out) ? -1 : 0;

10
tests/index/cache.c
View File

@ -38,7 +38,7 @@ void test_index_cache__write_extension_at_root(void)
cl_git_pass(git_index_open(&index, index_file));
cl_assert(index->tree);
cl_assert_equal_i(0, index->tree->entry_count);
cl_assert_equal_i(git_index_entrycount(index), index->tree->entry_count);
cl_assert_equal_i(0, index->tree->children_count);
cl_assert(git_oid_equal(&id, &index->tree->oid));
@ -106,7 +106,7 @@ void test_index_cache__read_tree_no_children(void)
cl_assert(index->tree);
cl_assert(git_oid_equal(&id, &index->tree->oid));
cl_assert_equal_i(0, index->tree->children_count);
cl_assert_equal_i(0, index->tree->entry_count); /* 0 is a placeholder here */
cl_assert_equal_i(git_index_entrycount(index), index->tree->entry_count);
memset(&entry, 0x0, sizeof(git_index_entry));
entry.path = "new.txt";
@ -169,7 +169,7 @@ void test_index_cache__two_levels(void)
cl_assert_equal_i(1, index->tree->children_count);
tree_cache = git_tree_cache_get(index->tree, "subdir");
cl_assert(tree_cache);
cl_assert_equal_i(0, tree_cache->entry_count);
cl_assert_equal_i(1, tree_cache->entry_count);
}
void test_index_cache__read_tree_children(void)
@ -226,11 +226,11 @@ void test_index_cache__read_tree_children(void)
cache = git_tree_cache_get(index->tree, "subdir/even-deeper");
cl_assert(cache);
cl_assert_equal_i(0, cache->entry_count);
cl_assert_equal_i(1, cache->entry_count);
cache = git_tree_cache_get(index->tree, "subdir2");
cl_assert(cache);
cl_assert_equal_i(0, cache->entry_count);
cl_assert_equal_i(1, cache->entry_count);
git_index_free(index);
}