OSTree Support

The depth option specifies the tree traversal depth. The default (when not specified) is 0 which means only the latest commit is pulled. A value of -1 means the depth is unlimited.

On atomic hosts, branches indicate a product (Eg: RHEL7) and the version(s) come from the version information in the commit metadata.

Example:
[] are commits

/branch/rhel/7/os  ------> [7.3]
                           [7.2]
                           [7.1]
                           [7.0]

Currently pulp does not support the depth option in the importer configuration so when the /branch/rhel/7/os is pulled, only the [7.3] commit is pulled. By adding support for depth option and passing it to libostree, users can control pulling older version. For example: depth=3 would result in pulp pulling 7.3, 7.2 and 7.1.

The depth option would also need to be supported by the distributor to control the publishing depth.