suggest using Plots.__init__()

[rdiaz02]

This solves issue in https://discourse.julialang.org/t/plots-do-not-display-unless-i-call-gui-when-using-custom-sysimage/92207

[codecov]

Codecov Report

Merging #750 (fe69b87) into master (df35434) will not change coverage.
The diff coverage is n/a.

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[KristofferC]

But Plots.__init__ should run when the sysimage is loaded. Does something else overwrite what it does?

[rdiaz02]

I don't know. But following the example in the documentation (https://julialang.github.io/PackageCompiler.jl/dev/examples/plots.html) definitely does not work for me now, as reported in https://discourse.julialang.org/t/plots-do-not-display-unless-i-call-gui-when-using-custom-sysimage/92207 . I've checked this in two different machines (both Linux, Debian).

These are the steps (the same as in https://discourse.julialang.org/t/plots-do-not-display-unless-i-call-gui-when-using-custom-sysimage/92207):

1. Create file precompile_plots.jl that contains

using Plots
p = plot(rand(2,2))
display(p)

2. Start Julia: julia --startup-file=no

3. Type

using PackageCompiler
create_sysimage(["Plots"], sysimage_path="sys_plots.so", precompile_execution_file="precompile_plots.jl")

4. Start Julia as

julia --startup-file=no --sysimage sys_plots.so

5. In the REPL type

using Plots
plot(rand(1))

The only thing shown is

Plot{Plots.GRBackend() n=1}

I have no idea what could be overwriting what Plots.__init__ does. But unless I do Plots.__init__() , I need to do gui() (or gui(plot(rand(1))) or plot(rand(1), show = true)) for the plot to be displayed.

Note also that a similar thing seems to happen with Makie, as reported in https://discourse.julialang.org/t/makie-doesnt-display-plot-when-using-a-custom-julia-sysimage/38515/4 .

[ufechner7]

Why are the tests failing? Can this be merged?