PlutoPkg fails if the same package name is in Local and General Registry

[lungben]

If I want to add a new package in a Pluto notebook and the package name is used both in the General registry and in a private/ local registry, this fails:

    Updating registry at `C:\Users\xxx\.julia\registries\JuliaRegistry`
    Updating git-repo `https://gitlab.internal.xxx.dev/benjamin/JuliaRegistry.jl.git`
    Updating registry at `C:\Users\xxx\.julia\registries\General.toml`
    Updating registry done ✓
┌ Warning: PlutoPkg: Failed to add/remove packages! Resetting package environment...
│   PLUTO_VERSION = v"0.18.0"
│   VERSION = v"1.7.2"
│   old_packages = String[]
│   new_packages =
│    1-element Vector{String}:
│     "MarketRisk"
│   exception =
│    there are multiple registered `MarketRisk` packages, explicitly set the uuid
│    Stacktrace:
│      [1] pkgerror(msg::String)
│        @ Pkg.Types C:\Users\xxx\AppData\Local\Programs\Julia-1.7.2\share\julia\stdlib\v1.7\Pkg\src\Types.jl:68
│      [2] registered_uuid(registries::Vector{Pkg.Registry.RegistryInstance}, name::String)
│        @ Pkg.Types C:\Users\xxx\AppData\Local\Programs\Julia-1.7.2\share\julia\stdlib\v1.7\Pkg\src\Types.jl:948
│      [3] registry_resolve!(registries::Vector{Pkg.Registry.RegistryInstance}, pkgs::Vector{Pkg.Types.PackageSpec})
│        @ Pkg.Types C:\Users\xxx\AppData\Local\Programs\Julia-1.7.2\share\julia\stdlib\v1.7\Pkg\src\Types.jl:850
│      [4] add(ctx::Pkg.Types.Context, pkgs::Vector{Pkg.Types.PackageSpec}; preserve::Pkg.Types.PreserveLevel, platform::Base.BinaryPlatforms.Platform, kwargs::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
│        @ Pkg.API C:\Users\xxx\AppData\Local\Programs\Julia-1.7.2\share\julia\stdlib\v1.7\Pkg\src\API.jl:255
│      [5] (::Pluto.var"#121#135"{Vector{String}, Pluto.Notebook, Pluto.IOListener})()
│        @ Pluto C:\Users\xxx\.julia\packages\Pluto\2DPK4\src\packages\Packages.jl:166
│      [6] withinteractive(f::Pluto.var"#121#135"{Vector{String}, Pluto.Notebook, Pluto.IOListener}, value::Bool)
│        @ Pluto C:\Users\xxx\.julia\packages\Pluto\2DPK4\src\packages\Packages.jl:495
│      [7] #120
│        @ C:\Users\xxx\.julia\packages\Pluto\2DPK4\src\packages\Packages.jl:152 [inlined]
│      [8] withio(f::Pluto.var"#120#134"{Vector{String}, Pluto.Notebook, Pluto.IOListener}, ctx::Pkg.Types.Context, io::IOContext{IOBuffer})
│        @ Pluto.PkgCompat C:\Users\xxx\.julia\packages\Pluto\2DPK4\src\packages\PkgCompat.jl:129
│      [9] (::Pluto.var"#114#127"{Pluto.Notebook, Pluto.IOListener, Vector{String}, Vector{String}, Bool, Bool})()
│        @ Pluto C:\Users\xxx\.julia\packages\Pluto\2DPK4\src\packages\Packages.jl:151
│     [10] withtoken(f::Pluto.var"#114#127"{Pluto.Notebook, Pluto.IOListener, Vector{String}, Vector{String}, Bool, Bool}, token::Pluto.Token)
│        @ Pluto C:\Users\xxx\.julia\packages\Pluto\2DPK4\src\evaluation\Tokens.jl:19
│     [11] sync_nbpkg_core(notebook::Pluto.Notebook; on_terminal_output::Pluto.var"#iocallback#143"{Pluto.ServerSession, Pluto.Notebook})
│        @ Pluto C:\Users\xxx\.julia\packages\Pluto\2DPK4\src\packages\Packages.jl:103
│     [12] #141
│        @ C:\Users\xxx\.julia\packages\Pluto\2DPK4\src\packages\Packages.jl:262 [inlined]
│     [13] withtoken(f::Pluto.var"#141#142"{Pluto.ServerSession, Pluto.Notebook}, token::Pluto.Token)
│        @ Pluto C:\Users\xxx\.julia\packages\Pluto\2DPK4\src\evaluation\Tokens.jl:19
│     [14] sync_nbpkg(session::Pluto.ServerSession, notebook::Pluto.Notebook; save::Bool)
│        @ Pluto C:\Users\xxx\.julia\packages\Pluto\2DPK4\src\packages\Packages.jl:253
│     [15] (::Pluto.var"#209#212"{Bool, Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}}, Pluto.ServerSession, Pluto.Notebook, Pluto.NotebookTopology})()
│        @ Pluto C:\Users\xxx\.julia\packages\Pluto\2DPK4\src\evaluation\Run.jl:458
│     [16] macro expansion
│        @ C:\Users\xxx\.julia\packages\Pluto\2DPK4\src\evaluation\Tokens.jl:101 [inlined]
│     [17] (::Pluto.var"#184#185"{Pluto.var"#209#212"{Bool, Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}}, Pluto.ServerSession, Pluto.Notebook, Pluto.NotebookTopology}})()
│        @ Pluto .\task.jl:423
└ @ Pluto C:\Users\xxx\.julia\packages\Pluto\2DPK4\src\packages\Packages.jl:286

The Julia REPL offers a selection in the same situation:

(jl_nPj58R) pkg> add MarketRisk
There are multiple registered `MarketRisk` packages, choose one:
 > Registry: JuliaRegistry - Repo: https://gitlab.internal.xxx.dev/benjamin/marketrisk.jl.git - UUID: 4464747a-2b55-41d9-8dca-e6f80a96fed3
   Registry: General - Repo: https://github.com/mpkuperman/MarketRisk.jl.git - UUID: a023d85a-3a31-486e-88e8-289a01a8187b

In order to reproduce this, you need to have a private Registry added to Julia (] registry add myregistry) and have a package registered there with the same name as one in General registry.

I know that this is quite an edge-case and a fix may be difficult, but nevertheless I wanted to document it.

Workaround: switch off PlutoPkg and use manual package management in the notebook.

[fonsp]

Some more info in #1873