svn_error_t *
svn_fs_fs__dag_clone_root(dag_node_t **root_p,
svn_fs_t *fs,
const char *txn_id,
apr_pool_t *pool)
{
const svn_fs_id_t *base_root_id, *root_id;
/* Get the node ID's of the root directories of the transaction and
its base revision. */
SVN_ERR(svn_fs_fs__get_txn_ids(&root_id, &base_root_id, fs, txn_id, pool));
/* Oh, give me a clone...
(If they're the same, we haven't cloned the transaction's root
directory yet.) */
SVN_ERR_ASSERT(!svn_fs_fs__id_eq(root_id, base_root_id));
/*
* (Sung to the tune of "Home, Home on the Range", with thanks to
* Randall Garrett and Isaac Asimov.)
*/
/* One way or another, root_id now identifies a cloned root node. */
return svn_fs_fs__dag_get_node(root_p, fs, root_id, pool);
}
int
svn_fs_fs__id_compare(const svn_fs_id_t *a,
const svn_fs_id_t *b)
{
if (svn_fs_fs__id_eq(a, b))
return 0;
return (svn_fs_fs__id_check_related(a, b) ? 1 : -1);
}
svn_fs_node_relation_t
svn_fs_fs__id_compare(const svn_fs_id_t *a,
const svn_fs_id_t *b)
{
if (svn_fs_fs__id_eq(a, b))
return svn_fs_node_unchanged;
return (svn_fs_fs__id_check_related(a, b) ? svn_fs_node_common_ancestor
: svn_fs_node_unrelated);
}
