Seeing what got precompiled vs Preferences error

[mkitti]

While following the documentation under "Seeing what got precompiled" I ran into an error.

julia> using PrecompileTools

julia> PrecompileTools.verbose[] = true
true

julia> include("src/LanguageServer.jl")
ERROR: LoadError: ArgumentError: Module Main.LanguageServer does not correspond to a loaded package!
Stacktrace:
 [1] get_uuid(m::Module)
   @ Preferences ~/.julia/packages/Preferences/VmJXL/src/utils.jl:8
 [2] var"@load_preference"(__source__::LineNumberNode, __module__::Module, key::Any, default::Any)
   @ Preferences ~/.julia/packages/Preferences/VmJXL/src/Preferences.jl:45
 [3] include(fname::String)
   @ Base.MainInclude ./client.jl:478
 [4] top-level scope
   @ REPL[3]:1
in expression starting at /home/mkitti/.julia/packages/PrecompileTools/NxtJ8/src/PrecompileTools.jl:115
in expression starting at /home/mkitti/.julia/dev/LanguageServer/src/LanguageServer.jl:1

[aviatesk]

I found this workaround:

using PrecompileTools; PrecompileTools.verbose[] = true

using Preferences
Preferences.get_uuid(::Module) = nothing
Preferences.load_preference(::Nothing, key::String, default=nothing) = default

It will not load preferences correctly, but at least allow us to see what got precompiled.

[timholy]

Fix in #13 (waiting to merge to see if we can try the spiffy new PkgEval runs for packages).