On Thu, Jan 21, 2016 at 10:25:09AM -0500, Ren Wang wrote: > Can I assume the node revision id is unique in subversion?
Yes, but it is specific to a particular filesystem instance. If you dump/load the repository all IDs will change. > If so, is there > an API to get it by repository root, path and revision number parameters? svn_fs_paths_changed2() declared in include/subversion/svn_fs.h provides the IDs for changed paths in a particular revision. An ID is represented as an opaque object svn_fs_id_t. The contents of this object depend on the filesystem backend used. There are a few functions to operate on svn_fs_id_t, such as svn_fs_unparse_id(). It's unclear what purpose you'd like to use these for so it's hard to give more specific advice.