As we bring on new maintainers/contributors, it will be helpful to organize the code into sub-packages. This would separate the various components of dep, for example:

• Each command's implementation would have a pkg: init, ensure, and status.
• Split up gps into components: solver, @sdboyer I forgot the others you mentioned 😅
• Shared code which are used by multiple components, which of course would never, ever be named util, such as fs.go.

We also need to consider our plan for what's internal/exported which is a conversation that was started under #527.

UPDATE: Narrowed scope of this issue to only address the first bullet point.