On 12 February 2016 at 22:55, Merlijn Sebrechts <merlijn.sebrec...@gmail.com> wrote: > Hi all > > > We have a layer that can install a number of different packages. It decides > at runtime which packages will be installed. This layer uses the `apt` layer > which sets a state `apt.installed.<packagename>`. > > We want to react to this installed state, but we don't know what the > packagename will be beforehand. This gets decided at runtime. Therefore, we > can't put it in a @when() decorator. > > Is there a way to dynamically register handlers at runtime?
Not with reactive as it stands, unless by 'at runtime' you mean 'at import time'. I previously patched @when_file_changed to accept callables, allowing the filenames to be generated at run time. I imagine the same thing would need to be done for the @when and @when_not decorators. I'd experiment by creating your own decorator, and if it turns out to be useful propose it as a charms.reactive update. -- Stuart Bishop <stuart.bis...@canonical.com> -- Juju mailing list Juju@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/juju
