Is it possible to make an opam “sandbox”?

问题

I have two ocaml projects being compiled with ocaml 4.02.1. Is there a way to create separate opam installations for each project instead of having both projects install their dependencies in the global 4.02.1 opam switch?

回答1:

In opam you can have several installations of the same compiler:

opam switch -A 4.02.1 proj1
opam switch -A 4.02.1 proj2

will create two separate independent stacks for each project. You may also find these commands useful:

opam switch export
opam switch import

来源：https://stackoverflow.com/questions/27640897/is-it-possible-to-make-an-opam-sandbox