Feature: Create/Update structure.sql for each migration

[neumachen]

Currently each time a migration is applied and unless pgmgr dump is executed there's no dump or structure file that gets generated.

This feature would create a structure only sql file each time a migration is ran and can be toggled on and off via the config file through the setting:

{
  "db-structure": "path/to/structure/"
}

By default, the structure is not generated unless this part of the configuration is specified.

[rnubel]

Hey, sorry for the delay in responding. We already have a config key, dump-file, to indicate where DB dumps (aka structure.sql) go, but what we don't have is a flag to automatically run it after migrating. In a production environment, that behavior is undesirable, but I can see use cases where you'd want it. Perhaps a "dump-after-migrate": true flag instead?

[neumachen]

It's alright. Yeah, we can add a flag. I'll try to make a PR for that sometime soon. :)