I'm experimenting with a Datasette plugin that itself adds new plugin hooks which other plugins can then interact with.
It's called datasette-low-disk-space-hook, and it adds a new plugin hook called low_disk_space(datasette)
, defined in the datasette_low_disk_space_hook/hookspecs.py module.
The hook is registered by this code in datasette_low_disk_space_hook/__init__.py
from datasette.utils import await_me_maybe
from datasette.plugins import pm
from . import hookspecs
pm.add_hookspecs(hookspecs)
This imports the plugin manager directly from Datasette and uses it to add the new hooks.
I was worried that the pm.add_hookspects(hookspecs)
line was not guaranteed to be executed if that module had not been imported.
It turns out that having this entrpoints=
line in setup.py is enough to ensure that the module is imported and the pm.add_hookspecs()
line is executed:
from setuptools import setup
setup(
name="datasette-low-disk-space-hook",
# ...
entry_points={"datasette": ["low_disk_space_hook = datasette_low_disk_space_hook"]},
# ...
)
Created 2022-06-17T13:04:35-07:00 · Edit