Update records in SQLite via SQL instead of re-creating the database/file

[tsibley]

This moves the update from the filesystem layer into the SQL layer, thus
allowing multiple processes to coordinate. Datasette holds open SQLite
connections and was keeping references to the deleted files.

Since the Makefile recipe got more complicated, move it to a shell
script.

Resolves #10.

[tsibley]

Since I fixed the sqlite-utils insert --truncate PR, I also pushed an alternate implementation to update-database-in-place-alternate: https://github.com/seattleflu/scan-switchboard/compare/update-database-in-place-alternate

Either implementation is totally fine by me but wanted to put both out there.

[ghost]

typo: exit instead of exits

[ghost]

See the tiny typo and a question about confirming that the DELETE worked.

[kairstenfay]

Since I fixed the sqlite-utils insert --truncate PR, I also pushed an alternate implementation to update-database-in-place-alternate: https://github.com/seattleflu/scan-switchboard/compare/update-database-in-place-alternate

Either implementation is totally fine by me but wanted to put both out there.

Given that you fixed the --truncate PR, I am partial to your solution including it because it's much more elegant and uses less bash (which we know not everyone appreciates 🙂).

[joverlee521]

I prefer the sqlite-utils --truncate solution. Sounds like they are open to making improvements to how they handle transactions 👍

[tsibley]

Closing this in favor of #12 then. Thanks for all your comments and our group programming yesterday!