Now that we're no longer actively debugging this tool, there's no need
to have it print everything it's doing.
This will make `test-backend` a lot nicer to use.
Previously, we used shell quoting that would result in the shell variable not
being substituted. Instead, we use `"`s that will allow for variable
substitution.
This fixes an annoying issue where one tries to rebuild the database,
and it fails due to there being existing connections.
The one thing that is potentially scary about this implementation is
that it means it's now a lot easier to accidentally drop your
production database by running the wrong script; might be worth adding
a "--force" flag controlling this behavior or something.
Thanks to Nemanja Stanarevic and Neeraj Wahi for prototypes of this
implementation! They did most of the work and testing for this.
Tim Abbott
Luke Faraone
Vladislav Manchev
Tim Abbott