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https://issues.apache.org/jira/browse/ARROW-17872?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17610538#comment-17610538
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Antoine Pitrou commented on ARROW-17872:
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Ouch, LLVM can be heavy but 1.5GB sounds really outlandish.
(for comparison, the combined unpacked size for the conda-forge packages
{{libllvm}}, {{llvm-tools}} and {{llvmdev}} is 500MB)
> [CI] Cache dependencies on macOS builds
> ---------------------------------------
>
> Key: ARROW-17872
> URL: https://issues.apache.org/jira/browse/ARROW-17872
> Project: Apache Arrow
> Issue Type: Wish
> Components: C++, Continuous Integration, GLib, Python
> Reporter: Antoine Pitrou
> Priority: Major
>
> Our macOS CI builds on Github Actions usually take at least 10 minutes
> installing dependencies from Homebrew (because of compiling from source?). It
> would be nice to cache those, especially as they probably don't change often.
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