Easy way to load all needed packages after activating enviroment?

[oxinabox]

The enviroment stored in the JLSO means we always have access to the right packages.
Bu they need to be usinged (or at least Base.requireed) to have the JLSO correctly deserialize any types from them.
Else you get a UInt8 array.

Ideally we would workout which are actually used in the JLSO for a particular object and be able to using them.

A work around is to load everything.
It is a bit gross but the following works (I think it needs julia 1.4)

using Pkg: Pkg
eval(Expr(:using, (Expr(:., n) for n in Symbol.(keys(Pkg.Types.Context().env.project.deps)))...))

[axdahl]

I just tested in Julia 1.5.3 and the snippet worked.

[rofinn]

Yeah, but unless we're inspecting the serialized objects this feels like more of a Pkg issue?

[oxinabox]

Yeah, but unless we're inspecting the serialized objects this feels like more of a Pkg issue?

I think we should do exactly that.

[rofinn]

Hmm, maybe we should do that in another package? I've heard people complain that JLD2.jl doesn't do that either.

[oxinabox]

I think we should work it out here, and worry about generalizing later

[rofinn]

Okay, added a MWE in the PR linked.