Manipulating repositories for specific Monticello packages programatically?

Question

I want to automate some Monticello tasks. For this purpose i would have to first choose certain Monticello packages and then i would like to be able to:

• add repositories,
• remove repositories,
• add user and password information for certain (Smalltalkhub) repositories.

I saw there is a small paragraph on "Programmatically adding repositories" in the upcoming Monticello chapter of "Deep into Pharo".

Can Gofer be used to automate tasks like this?

Answer 1

At least I found an answer to my third question:

How to programatically add user and password information for certain (Smalltalkhub) repositories.

(MCRepositoryGroup default repositories
    select: [:each | (each isKindOf: MCHttpRepository)
        and: [each locationWithTrailingSlash includesSubstring: 'http://smalltalkhub.com/mc/MyName/']])
    do: [:each | each user: 'MyName'; password: 'MyPassword'].

The credit goes to "Pharo: Tips and Tricks" by Mariano Martinez Peck