Toolset update: VS 2022 17.1 Preview 5, CMake 3.22, sparse index #2514
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https://github.blog/2021-11-10-make-your-monorepo-feel-small-with-gits-sparse-index/ git 2.36 will improve `git clean` performance with the sparse index. Also, `git sparse-checkout init` has been deprecated and fused into `git sparse-checkout set`: https://github.blog/2022-01-24-highlights-from-git-2-35/ Tested with: ``` git clone https://github.com/microsoft/STL.git cd STL\llvm-project git init git remote add llvm https://github.com/llvm/llvm-project.git git config --local extensions.partialClone llvm git fetch --filter=tree:0 --depth=1 llvm 605751790418ca4fb1df1e94dfbac34cfcc1b96f git sparse-checkout set --cone --sparse-index libcxx/test libcxx/utils/libcxx llvm/utils/lit git reset --quiet --hard FETCH_HEAD git clean --quiet -x -d -f ``` Shrinks `llvm-project\.git` from 20,234,297 bytes to 9,109,231 bytes and shrinks `llvm-project` from 42,340,692 bytes to 31,215,626 bytes.
CaseyCarter
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Feb 3, 2022
fsb4000
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Feb 3, 2022
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CaseyCarter
approved these changes
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barcharcraz
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Feb 10, 2022
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I'm mirroring this to the MSVC-internal repo - please notify me if any further changes are pushed. |
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Update the toolset to VS 2022 17.1 Preview 5 containing CMake 3.22 (now required).
Use
--sparse-indexwhen checking out libcxx from llvm-project. See GitHub's blog post Make your monorepo feel small with Git's sparse index.git 2.36 is expected to improve
git cleanperformance with the sparse index, but AFAIK there are no correctness concerns.Also,
git sparse-checkout inithas been deprecated and fused intogit sparse-checkout set. See GitHub's blog post Highlights from Git 2.35 and Git's documentation.Tested with:
This shrinks
llvm-project\.gitfrom 20,234,297 bytes to 9,109,231 bytes and shrinksllvm-projectfrom 42,340,692 bytes to 31,215,626 bytes.