Say I have a /databases/ directory with multiple sqlite db files in that dir (1.db & 2.db) and an inspect-data.json file.

If I start datasette via datasette -h 0.0.0.0 /databases/ then the resulting databases are set to is_mutable: true as inspected via http://127.0.0.1:8001/-/databases.json

I don't want to have to list out the databases by name, e.g. datasette -i /databases/1.db -i /databases/2.db as i want the system to autodetect the sqlite dbs i have in the configuration directory

According to the docs outlined in https://docs.datasette.io/en/latest/settings.html?highlight=immutable#configuration-directory-mode this should be possible

inspect-data.json the result of running datasette inspect - any database files listed here will be treated as immutable, so they should not be changed while Datasette is running

I believe that if the inspect-json.json file present, then in theory the databases will be automatically set to immutable via this code

However it appears the Click Multiple Options will return a tuple via

The resulting tuple is passed to the Datasette app via kwargs and overrides the behaviour to set the databases to immutable via this arg

If you think this is a bug and needs fixing, I am willing to make a PR to check for the empty immutable tuple before calling the Datasette class initializer as I think leaving that class interface alone is the best path here.

Thoughts?

Also - i'm loving Datasette, it truly is a wonderful tool, thank you :)