Enhance `showmigrations` to only write leafs nodes (most recent migrations) to stdout, if desired

[brian]

It would be nice to be able to have showmigrations only display the most recent migration for a given app. Currently, the functionality is to list all migrations, which can be a long list for more mature apps. I have found at times that I am really only looking for the most recent migration so that I can unapply it or find the number of the last migration so I can squash through that point.

Proposed enhancement: add an argument to showmigrations that will only show the leaf nodes for the given app(s) if provided.

[brian]

pull request: ​https://github.com/django/django/pull/17728

[Mariusz Felisiak]

Thanks for this ticket, however, I don't think it's especially useful for most of programmers. Why only the last migrations for each should be crucial, and not the last two or three? If you want to check the last migrations in the last you can use: showmigrations --plan | tail.

You can raise the idea on the DevelopersMailingList to reach a wider audience and see what other think, if you don't agree.