# Alternative to \`deps/build.jl\` to download and process data

**URL:** <https://discourse.julialang.org/t/alternative-to-deps-build-jl-to-download-and-process-data/60309>\
**Category:** General Usage\
**Tags:** binarybuilder\
**Created:** [April 30, 2021, 1:16pm UTC](https://discourse.julialang.org/t/alternative-to-deps-build-jl-to-download-and-process-data/60309 "2021-04-30T13:16:26Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![jbrea](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/jbrea/32/3879_2.png) [@jbrea](https://discourse.julialang.org/u/jbrea)\
**Post date:** [April 30, 2021, 1:16pm UTC](https://discourse.julialang.org/t/alternative-to-deps-build-jl-to-download-and-process-data/60309/1 "2021-04-30T13:16:26Z")

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So far, binary dependencies of [ArcadeLearningEnvironment](https://github.com/JuliaReinforcementLearning/ArcadeLearningEnvironment.jl) are downloaded and processed during the [build step](https://github.com/JuliaReinforcementLearning/ArcadeLearningEnvironment.jl/blob/master/deps/build.jl). Processing consists basically of unrar, unzip, renaming files based on md5 sums and deleting obsolete files. This [fails](https://github.com/JuliaReinforcementLearning/ArcadeLearningEnvironment.jl/issues/14) occasionally. I would like this to be more robust.

I was wondering of I could include the steps of the [build script](https://github.com/JuliaReinforcementLearning/ArcadeLearningEnvironment.jl/blob/master/deps/build.jl) in [ArcadeLearning\_jll](https://github.com/JuliaPackaging/Yggdrasil/blob/master/A/ArcadeLearningEnvironment/build_tarballs.jl). Is this the right way to do it, or is there a better alternative?

If it is the right way, can I use the non-\_jll package `MD5` in the [build\_tarballs.jl](https://github.com/JuliaPackaging/Yggdrasil/blob/master/A/ArcadeLearningEnvironment/build_tarballs.jl)? (I started to experiment with `BinaryBuilder.run_wizard()` but ran into [this issue](https://github.com/JuliaPackaging/BinaryBuilder.jl/issues/906), which is why I ask here for some guidance).

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**Author:** ![simeonschaub](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/simeonschaub/32/216566_2.png) [@simeonschaub](https://discourse.julialang.org/u/simeonschaub)\
**Post date:** [April 30, 2021, 1:46pm UTC](https://discourse.julialang.org/t/alternative-to-deps-build-jl-to-download-and-process-data/60309/2 "2021-04-30T13:46:31Z")

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> [@jbrea](#):
>
> If it is the right way, can I use the non-\_jll package `MD5` in the [build\_tarballs.jl](https://github.com/JuliaPackaging/Yggdrasil/blob/master/A/ArcadeLearningEnvironment/build_tarballs.jl)?

If this is just about verifying MD5 sums in the build script, the `md5sum` command should be available inside the sandbox environment.