Docker image creation fails for julia 1.9 due to pkgdefaults.jl

[maxstb]

Hello everyone,

I'm running a Docker where I use Unitful as a dependency. Unfortunately, I cannot update to Julia 1.9 since the system image creation fails due to a line in pkgdefaults.jl. Every other (older) Julia version works perfectly fine.

In v.1.15.0 the Line 309 with

@doc @doc(L) l

Leads to the following error:

ERROR: LoadError: UndefRefError: access to undefined reference
Step #5: Stacktrace:
Step #5:   [1] getproperty
Step #5:     @ ./Base.jl:37 [inlined]
Step #5:   [2] getindex
Step #5:     @ ./refvalue.jl:56 [inlined]
Step #5:   [3] docm(source::LineNumberNode, mod::Module, ex::Any)
Step #5:     @ Base.Docs ./docs/Docs.jl:522
Step #5:   [4] var"@doc"(__source__::LineNumberNode, __module__::Module, x::Vararg{Any})
Step #5:     @ Core ./boot.jl:539
Step #5:   [5] include(mod::Module, _path::String)
Step #5:     @ Base ./Base.jl:457
Step #5:   [6] include(x::String)
Step #5:     @ Unitful ~/.julia/packages/Unitful/QEYHc/src/Unitful.jl:1
Step #5:   [7] top-level scope
Step #5:     @ ~/.julia/packages/Unitful/QEYHc/src/Unitful.jl:69
Step #5:   [8] include
Step #5:     @ ./Base.jl:457 [inlined]
Step #5:   [9] _require(pkg::Base.PkgId, env::String)
Step #5:     @ Base ./loading.jl:1836
Step #5:  [10] _require_prelocked(uuidkey::Base.PkgId, env::String)
Step #5:     @ Base ./loading.jl:1660
Step #5:  [11] macro expansion
Step #5:     @ ./loading.jl:1648 [inlined]
Step #5:  [12] macro expansion
Step #5:     @ ./lock.jl:267 [inlined]
Step #5:  [13] require(into::Module, mod::Symbol)
Step #5:     @ Base ./loading.jl:1611
Step #5:  [14] include
Step #5:     @ ./Base.jl:457 [inlined]
Step #5:  [15] _require(pkg::Base.PkgId, env::String)
Step #5:     @ Base ./loading.jl:1836
Step #5:  [16] _require_prelocked(uuidkey::Base.PkgId, env::String)
Step #5:     @ Base ./loading.jl:1660
Step #5:  [17] macro expansion
Step #5:     @ ./loading.jl:1648 [inlined]
Step #5:  [18] macro expansion
Step #5:     @ ./lock.jl:267 [inlined]
Step #5:  [19] require(into::Module, mod::Symbol)
Step #5:     @ Base ./loading.jl:1611
Step #5:  [20] include
Step #5:     @ ./Base.jl:457 [inlined]
Step #5:  [21] _require(pkg::Base.PkgId, env::Nothing)
Step #5:     @ Base ./loading.jl:1836
Step #5:  [22] _require_prelocked(uuidkey::Base.PkgId, env::Nothing)
Step #5:     @ Base ./loading.jl:1660
Step #5:  [23] _require_prelocked
Step #5:     @ ./loading.jl:1658 [inlined]
Step #5:  [24] macro expansion
Step #5:     @ ./lock.jl:267 [inlined]
Step #5:  [25] require(uuidkey::Base.PkgId)
Step #5:     @ Base ./loading.jl:1655
Step #5:  [26] top-level scope
Step #5:     @ /tmp/jl_8F4dIfgzsL:11
Step #5: in expression starting at /root/.julia/packages/Unitful/QEYHc/src/pkgdefaults.jl:309
Step #5: in expression starting at /root/.julia/packages/Unitful/QEYHc/src/pkgdefaults.jl:309
Step #5: in expression starting at /root/.julia/packages/Unitful/QEYHc/src/Unitful.jl:1

Unfortunately, I cannot reproduce this for a normal precompilation and I therefore don't know how to provide a MWE...

[sostock]

Disclaimer: I haven’t tried this myself (I have never used Docker).

This should be fixed by JuliaLang/julia#48594 (the PR even mentions this usecase), so it should work¹ in Julia 1.10. Can you confirm that it works in Julia 1.10-beta1?

We could work around this by duplicating the Unitful.L docstring in the code instead of using @doc(L) to look it up. The same applies to ε0 and angstrom.

Footnotes

1. where “work” means that it doesn’t error, but Unitful.l, Unitful.ϵ0, and Unitful.Å get empty docstrings ↩

[maxstb]

Hey, thanks for the quick reply. Created a pull request that should address that issue. Couldn't test it out yet with julia-1.10 since there seems to be an issue with my current code base and the newest alpha release.