[feature request] generate migrations from scheme

[trsh]

I know that some DB alterations can be complex and need manual work, but most of the time its small things. So why can't we do this other way around - change scheme, cli check for alterations and generates and migration?

[sgrif]

This feature has been requested in the past, and isn't something we're interested in adding to Diesel. We prefer the workflow of writing your migrations, and generating your schema from that.