The Sign plugin can call command (from the host) on the produced rpms.

It was primary created for signing packages, but can call anything you want to.

Configuration

The Sign plugin is disabled by default. To enable it, add this code to configure file:

config_opts['plugin_conf']['sign_enable'] = True
config_opts['plugin_conf']['sign_opts'] = {}
config_opts['plugin_conf']['sign_opts']['cmd'] = 'rpmsign'
config_opts['plugin_conf']['sign_opts']['opts'] = '--addsign %(rpms)s'

The variable %(rpms)s will be expanded to package file name. This command will run as unprivileged and will get all your environment variables and especially it will run in your $HOME. So ~/.rpmmacros will be interpreted.

Since mock-1.2.14 there is also available variable %(resultdir), which will be expanded to name of directory where are final rpm packages.