Ticket #5664 (new enhancement)

Description

It would be nice if SvnAuthzAdminPlugin will be written for multiple read/write access of svnauthz file. In our setup we have multiple Trac environments which working on same svnauthz file. in the current version it is possible to get some race conditions for updating svnauthz file. Scenario:

• TracProject?1 use the SvnAuthzAdminPlugin to modify the permissions for its project.
• TracProject?2 use at same time the SvnAuthzAdminPlugin to modify the permissions.
• If TracProject?1 modifies its permissions and uses some button, then this changes will be lost after TracProject?2 saves its changes :(

It would be nice if the concurrent acces would be work for different authz_module_name so that the changes of TracProject?2 can be included into changes of TracProject?1 if TracProject?1 changes will be saved. Race condition for the same authz_module_name may be occure.