vacuumdiff

Vacuumdiff is a command-line utility used in the Subversion version control system to compare two repository revisions and generate a patch to bring the first repository up to the state of the second using the vacuum merge semantics.

The utility is intended for administrative tasks, such as analyzing and verifying the changes made to a repository. It is not designed for everyday version control operations and does not process transactions or update the repository in real-time.

The main purpose of Vacuumdiff is to identify and report any conflicts or changes that may be introduced during the merge, rather than to facilitate an actual merge or update. It compares two repository revisions at the level of Items (heads, branches, tags, etc.) and also considers changes in database representation and caches.

Vacuumdiff flags can be used to specify the types of changes to consider and to control the behavior of the utility. By default, Vacuumdiff displays the list of conflicts found between the two revisions. These conflicts include properties, files, and Items, the details of which are displayed when the -v or -verbose flag is used.

This utility relies on the recycling of the caching and locking materials and cancels any transactions that the cleanup tool may have opened during the preparation of the repository.

The tool facilitates verifying that one repository has the necessary permissions and environment to update to the second repository while listing the current problems and also providing the necessary patches for updating the repository. It assists repository administrators in understanding the changes between revisions and better debugging the source issues.