One of the check types included in wp doctor is Plugin_Status, or the ability to assert that a given plugin should be active, installed, or uninstalled. Although the check type isn't use by any of the default diagnostic checks, you can use the Plugin_Status check type in your custom doctor.yml configuration file.
As an example, here are two checks using Plugin_Status, one which ensures Akismet is active on the system and other which ensures Hello Dolly is uninstalled:
plugin-akismet-active:
check: Plugin_Status
options:
name: akismet
status: active
plugin-hello-uninstalled:
check: Plugin_Status
options:
name: hello
status: uninstalled
Run together, you might see:
$ wp doctor check --config=plugin-status.yml --all
+--------------------------+---------+----------------------------------------------------------------+
| name | status | message |
+--------------------------+---------+----------------------------------------------------------------+
| plugin-akismet-active | success | Plugin 'akismet' is 'active' as expected. |
| plugin-hello-uninstalled | error | Plugin 'hello' is 'inactive' but expected to be 'uninstalled'. |
+--------------------------+---------+----------------------------------------------------------------+
The Plugin_Status check type accepts the following options:
- 'name': Name of the plugin as it appears in
wp plugin list. - 'status': Expected plugin status as one of 'active', 'installed', or 'uninstalled'.