refs https://github.com/TryGhost/Toolbox/issues/592
- it turns out that `TRUNCATE` in CI takes ~300ms for all tables, but
`DELETE FROM` takes ~30ms
- whilst truncating is generally known to be faster, I believe it's only
faster on large tables
- this saves 90% of the time it takes to reset the DB in MySQL
refs https://github.com/TryGhost/Toolbox/issues/592
- async-await makes the code easier to read
- also performs a small optimization to only load the foreign_keys
pragma once for SQLite
refs https://github.com/TryGhost/Toolbox/issues/389
- if we enable warning logs in E2E tests, we get a bunch of error
messages saying `ERROR Unhandled rejection: aborted` coming from the
SQLite DB reset code
- specifically, it's coming from the line that resets the DB by copying
the file
- this line was initially added because we would see random SQLite
"malformed database" errors
- I have a feeling that was due to something else, but I can't be sure
- I'm also not sure how else we should shut the DB connection, as this
is the recommended way but it throws an unhandled rejection
- this commit is a bit of a gamble because I'm not actually sure what
was causing the problem, but it gets rid of the errors locally and
doesn't regress on the random failures
- we've had an optimization in CI that copies a fresh SQLite DB to a
file, and copies it back when we need to do a DB reset
- I originally only let this run in CI but we've had it around for a
while so we should GA it to run on local machines
- there may be edge cases, but we should fix them instead of letting
tests run slower for development
- this also makes sure we clean up any existing files before
initializing the DB
refs https://github.com/TryGhost/Toolbox/issues/354
- this commit turns the Ghost repo into a monorepo so we can bring our
internal packages back in, which makes life easier when working on
Ghost
