Julia 0.7.0-alpha is out

[tlnagy]

https://github.com/JuliaLang/julia/releases/tag/v0.7.0-alpha

Time to get serious about 0.7 compatibility.

[bjarthur]

the output of this script follows:

----------------------------------------------------------------------
Failing Dependency Tree  for Gadfly
----------------------------------------------------------------------
Gadfly
	Colors
		ColorTypes
			FixedPointNumbers
		FixedPointNumbers
	Compose
		Colors
			ColorTypes
				FixedPointNumbers
			FixedPointNumbers
		DataStructures
		IterTools
	CoupledFields
	DataFrames
		CategoricalArrays
		TranscodingStreams
	DataArrays
	DataStructures
	Distributions
		StatsFuns
	IterTools
	KernelDensity
		Distributions
			StatsFuns
		Optim
			LineSearches
				NLSolversBase
			NLSolversBase
		Interpolations
			ShowItLikeYouBuildIt
			WoodburyMatrices
			AxisAlgorithms
				WoodburyMatrices
			DualNumbers
	Loess
		IterTools
	IndirectArrays
----------------------------------------------------------------------

[bjarthur]

as of today:

----------------------------------------------------------------------
Failing Dependency Tree  for Gadfly
----------------------------------------------------------------------
Gadfly
	Compose
	CoupledFields
	DataFrames
	DataArrays
	Distributions
		StatsFuns
	KernelDensity
		Distributions
			StatsFuns
		Optim
			LineSearches
				NLSolversBase
			NLSolversBase
		Interpolations
			ShowItLikeYouBuildIt
			WoodburyMatrices
			AxisAlgorithms
				WoodburyMatrices
	Loess
	IndirectArrays
----------------------------------------------------------------------

all of Compose's dependencies now work on 0.7. but we probably shouldn't work on that until Gadfly's are too.

note that the recommendation is to drop support for 0.6 when support for 0.7 is added.

[Mattriks]

I have a Julia 0.7 branch for Mattriks/CoupledFields.jl#4

[bjarthur]

getting closer, but still a lot of Gadfly's dependencies are not yet working on 0.7.

@tlnagy what is your time frame for finishing GiovineItalia/Compose.jl#282 ? would be best not to merge it until have we tag a final julia 0.6 release for both Gadfly and Compose.

----------------------------------------------------------------------
Failing Dependency Tree  for Gadfly
----------------------------------------------------------------------
Gadfly
	Compose
	CoupledFields
	DataFrames
		Reexport
		WeakRefStrings
	DataArrays
		Reexport
	Distributions
		PDMats
			Arpack
	KernelDensity
		Distributions
			PDMats
				Arpack
		Optim
		Interpolations
			ShowItLikeYouBuildIt
			AxisAlgorithms
	Loess
	IndirectArrays
	WeakRefStrings
----------------------------------------------------------------------

[tlnagy]

It's getting there, I just made another stab at it, but ran into some problems: GiovineItalia/Compose.jl#282 (comment). Basically, the code we used to optional precompilation-time loading of optional dependency glue code is broken on v0.7 and the runtime-equivalent from Requires.jl isn't currently working.

[tlnagy]

Compose.jl is now passing tests on v1.0 (see GiovineItalia/Compose.jl#282 (comment))

[bjarthur]

----------------------------------------------------------------------
Failing Dependency Tree  for Gadfly
----------------------------------------------------------------------
Gadfly
	Compose
	DataArrays
----------------------------------------------------------------------

[bjarthur]

DataArrays.jl looks like it might soon be deprecated, so this might be the time to reduce Gadfly's dependency on it.

JuliaStats/DataArrays.jl#304 (comment)
JuliaStats/DataArrays.jl#301 (comment)

[tlnagy]

I'm definitely for dropping DataArrays support. Does someone want to start a PR updating Gadfly for 1.0? Checking GiovineItalia/Compose.jl#282 out should help with that. If no one gets to it first, I'll get to it when I'm back from vacation in a week

[kilianbreathnach]

There is a DataArrays branch named "jq/1.0" that supports v1.0. I have been trying to get Gadfly compiled in v0.7 (in order to make split violin plots that don't fail with the KDE precision problem, as discussed in #1157) and it seems happy with that version of DataArrays but is still not fully working... There seems to be an error with the varset macro when compiling:

ERROR: LoadError: LoadError: LoadError: type LineNumberNode has no field head
Stacktrace:
 [1] getproperty(::Any, ::Symbol) at ./sysimg.jl:18
 [2] @varset(::LineNumberNode, ::Module, ::Symbol, ::Any) at /home/kilian/.julia/packages/Gadfly/Vi3qB/src/varset.jl:25
 [3] include at ./boot.jl:317 [inlined]
 [4] include_relative(::Module, ::String) at ./loading.jl:1038
 [5] include at ./sysimg.jl:29 [inlined]
 [6] include(::String) at /home/kilian/.julia/packages/Gadfly/Vi3qB/src/Gadfly.jl:3
 [7] top-level scope at none:0
 [8] include at ./boot.jl:317 [inlined]
 [9] include_relative(::Module, ::String) at ./loading.jl:1038
 [10] include(::Module, ::String) at ./sysimg.jl:29
 [11] top-level scope at none:2
 [12] eval at ./boot.jl:319 [inlined]
 [13] eval(::Expr) at ./client.jl:399
 [14] top-level scope at ./none:3
in expression starting at /home/kilian/.julia/packages/Gadfly/Vi3qB/src/data.jl:1
in expression starting at /home/kilian/.julia/packages/Gadfly/Vi3qB/src/data.jl:1
in expression starting at /home/kilian/.julia/packages/Gadfly/Vi3qB/src/Gadfly.jl:94

LoadError: LoadError: Failed to precompile Gadfly [c91e804a-d5a3-530f-b6f0-dfbca275c004] to /home/kilian/.julia/compiled/v0.7/Gadfly/DvECm.ji.

There are not many similar errors when I google about the LineNumberNode, so I don't really understand the problem here.

[tlnagy]

Is there a specific reason you need DataArrays support? I'm planning to rebase #1157 on master when support for 1.0 is finalized in #1189. We're really close now. Basically the moment we can nail down the CI errors, we'll be merging.

[kilianbreathnach]

I didn't need it. My solution in the end was to fork #1189 from @bjarthur and merge #1157 with it so that I could get split violin plots working sooner (hoping to get them into a publication at the moment). Looking forward to the official version coming out, you guys are doing amazing work!