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id node_id number title user state locked assignee milestone comments created_at updated_at ▲ closed_at author_association pull_request body repo type active_lock_reason performed_via_github_app reactions draft state_reason
810507413 MDExOlB1bGxSZXF1ZXN0NTc1MTg3NDU3 1229 ensure immutable databses when starting in configuration directory mode with camallen 295329 closed 0     3 2021-02-17T20:18:26Z 2022-04-22T13:16:36Z 2021-03-29T00:17:32Z CONTRIBUTOR simonw/datasette/pulls/1229

fixes #1224

This PR ensures all databases found in a configuration directory that match the files in inspect-data.json will be set to immutable as outlined in https://docs.datasette.io/en/latest/settings.html#configuration-directory-mode

specifically on building the datasette instance it checks: - if immutables is an empty tuple - as passed by the cli code - if immutables is the default function value None - when it's not explicitly set

And correctly builds the immutable database list from the inspect-data[file] keys.

Note for this to work the inspect-data.json file must contain file paths which are relative to the configuration directory otherwise the file paths won't match and the dbs won't be set to immutable.

I couldn't find an easy way to test this due to the way make_app_client works, happy to take directions on adding a test for this.

I've updated the relevant docs as well, i.e. use the inspect cli cmd from the config directory path to create the relevant file cd $config_dir datasette inspect *.db --inspect-file=inspect-data.json https://docs.datasette.io/en/latest/performance.html#using-datasette-inspect

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807433181 MDU6SXNzdWU4MDc0MzMxODE= 1224 can't start immutable databases from configuration dir mode camallen 295329 closed 0     0 2021-02-12T17:50:13Z 2021-03-29T00:17:31Z 2021-03-29T00:17:31Z CONTRIBUTOR  

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 https://github.com/simonw/datasette/blob/9603d893b9b72653895318c9104d754229fdb146/datasette/app.py#L211-L216

However it appears the Click Multiple Options will return a tuple via https://github.com/simonw/datasette/blob/9603d893b9b72653895318c9104d754229fdb146/datasette/cli.py#L311-L317

The resulting tuple is passed to the Datasette app via kwargs and overrides the behaviour to set the databases to immutable via this arg https://github.com/simonw/datasette/blob/9603d893b9b72653895318c9104d754229fdb146/datasette/app.py#L182

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 :)

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