Build freeze

[t-bltg]

Now that Documenter@0.27.4 is out, we're trying #246, but the build hangs.

Example:

• recent https://github.com/JuliaPlots/Plots.jl/runs/3111869101 in ≈ 3h 35min (and still running -> Inf, build canceled)

• previous: https://github.com/JuliaPlots/Plots.jl/runs/2991757317 in ≈ 30min

• Can we get more output out of the Documenter process ? (JuliaPlots/Plots.jl@192eb6f)

[t-bltg]

CI

Procedure

[ Info: SetupBuildDirectory: setting up build directory.
[ Info: Doctest: running doctests.
┌ Debug: Running doctests.
└ @ Documenter.DocTests ~/.julia/packages/Documenter/oBZFM/src/DocTests.jl:47
[ Info: ExpandTemplates: expanding markdown templates.
┌ Debug: pages
│   keys(doc.blueprint.pages) =
│    KeySet for a Dict{String, Documenter.Documents.Page} with 35 entries. Keys:
│      "generated/attributes_series.md"
│      ⋮
│   priority_pages = String[]
│   normal_pages =
│    35-element Vector{String}:
│     "animations.md"
│     ⋮
└ @ Documenter.Expanders ~/.julia/packages/Documenter/oBZFM/src/Expanders.jl:36
┌ Debug: Running ExpanderPipeline on animations.md
└ @ Documenter.Expanders ~/.julia/packages/Documenter/oBZFM/src/Expanders.jl:39

LOCAL

Procedure:

$ julia -e 'using Pkg; pkg"up"'
$ julia -e 'using Pkg; pkg"dev https://github.com/JuliaPlots/PlotReferenceImages.jl; dev https://github.com/JuliaPlots/PlotDocs.jl"'
$ cd ~/.julia/dev/PlotDocs; JULIA_DEBUG=Documenter julia --project=docs/ docs/make.jl

Gtk-Message: 16:07:38.275: Failed to load module "appmenu-gtk-module"
Gtk-Message: 16:07:38.276: Failed to load module "appmenu-gtk-module"
WARNING: both jlgr and Base export "step"; uses of it in module GR must be qualified
[ Info: SetupBuildDirectory: setting up build directory.
[ Info: Doctest: running doctests.
┌ Debug: Running doctests.
└ @ Documenter.DocTests ~/.julia/packages/Documenter/oBZFM/src/DocTests.jl:47
[ Info: ExpandTemplates: expanding markdown templates.
┌ Debug: pages
│   keys(doc.blueprint.pages) =
│    KeySet for a Dict{String, Documenter.Documents.Page} with 35 entries. Keys:
│      "generated/attributes_series.md"
│      "generated/attributes_subplot.md"
│      "generated/plotthemes.md"
│      "graphrecipes/examples.md"
│      "contributing.md"
│      "basics.md"
│      "install.md"
│      "colorschemes.md"
│      "output.md"
│      "generated/plotly.md"
│      "graphrecipes/introduction.md"
│      "animations.md"
│      "generated/colorschemes.md"
│      "ecosystem.md"
│      ⋮
│   priority_pages = String[]
│   normal_pages =
│    35-element Vector{String}:
│     "animations.md"
│     "attributes.md"
│     "backends.md"
│     "basics.md"
│     "colors.md"
│     "colorschemes.md"
│     "contributing.md"
│     ⋮
│     "install.md"
│     "layouts.md"
│     "learning.md"
│     "output.md"
│     "pipeline.md"
│     "recipes.md"
│     "tutorial.md"
└ @ Documenter.Expanders ~/.julia/packages/Documenter/oBZFM/src/Expanders.jl:36
┌ Debug: Running ExpanderPipeline on animations.md
└ @ Documenter.Expanders ~/.julia/packages/Documenter/oBZFM/src/Expanders.jl:39

[t-bltg]

Hangs at Core.eval(mod, ex) in Documenter/src/Expanders.jl (in function Selectors.runner(::Type{ExampleBlocks}, x, page, doc))

┌ Info: anim = #= none:2 =# @animate(for i = 1:n
│             #= none:3 =#
│             circleplot(x, y, i)
└         end)

[t-bltg]

Commenting

c = IOCapture.capture() do
   ...
end

works ...

[t-bltg]

Tracked down to show_msg && @info("Saved animation to ", fn) in animation.jl.

[t-bltg]

I disabled all the @animate and @gif in https://github.com/JuliaPlots/PlotDocs.jl/blob/master/docs/src/animations.md for now, and will try to re-enable them one by one.

[t-bltg]

Fails on the first @animate. Maybe JuliaPlots/Plots.jl#3660 will help.

[t-bltg]

No. This bug is odd.

[t-bltg]

I guess FFMPEG updates are not to blame here:
https://github.com/JuliaBinaryWrappers/FFMPEG_jll.jl: FFMPEG-v4.4.0 on 29 May
https://github.com/JuliaIO/FFMPEG.jl: v0.4.1 on 1 June

[t-bltg]

Closed by JuliaPlots/Plots.jl@f049f56.