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refactor(llvm): get a smaller distribution #885

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refactor(llvm): get a smaller distribution
alexeagle Oct 15, 2025
e46c0ef
fix syntax
alexeagle Oct 15, 2025
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39 changes: 38 additions & 1 deletion bazel/include/llvm.MODULE.bazel
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Original file line number Diff line number Diff line change
Expand Up @@ -21,13 +21,50 @@ execution_cpus = [
"x86_64",
]

# Get a smaller llvm distribution for fetch and repo rule performance
# (Maybe --repo_contents_cache makes this less important someday)
# From https://github.com/dzbarsky/static-clang/releases/tag/v20.1.1-4
dzbarsky_static_clang = {
"macos": {
"aarch64": {
"sha256": "a4e65db49d01e4b37abcbc36a03e4f1121fbea63a7c7b58f9d49e3848a4cbdfc", # darwin_arm64.tar.zst
# 3491c3d2062a57216d34a85662942a9f7e24b997a065832e8dbec943c0c1cfc1 darwin_arm64_minimal.tar.zst
"strip_prefix": "",
"urls": ["https://github.com/dzbarsky/static-clang/releases/download/v20.1.1-4/darwin_arm64.tar.zst"],
},
"x86_64": {
"sha256": "b681a621e6d456e20fdfc7626db23edad63f7dabb1442790db3397431688cb41", # darwin_amd64.tar.zst
# 7952368ac99c61a2bfaec147aa2a4055b5ee9cba01789cc78289106e7d0dfe34 darwin_amd64_minimal.tar.zst
"strip_prefix": "",
"urls": ["https://github.com/dzbarsky/static-clang/releases/download/v20.1.1-4/darwin_amd64.tar.zst"],
},
},
"linux": {
"aarch64": {
"sha256": "a71d6686edfb32e455717a1befb013b580a52042915a49f21fc25f83fff59e20", # linux_arm64.tar.zst
# 485f4c6efe55e595d93ae870d5c11fdd2ee532f91f8cfe3da417baa5c0c86ccc linux_arm64_minimal.tar.zst
"strip_prefix": "",
"urls": ["https://github.com/dzbarsky/static-clang/releases/download/v20.1.1-4/linux_arm64.tar.zst"],
},
"x86_64": {
"sha256": "2096e63a41887a860199aec0f046f82e6469b2cd5ae4e4245a7a111bff4abe5b", # linux_amd64.tar.zst
# 7bfc12074796463443477218f1ba92a5c6a3e6f87959e2ec1a574422a05d84de linux_amd64_minimal.tar.zst
"strip_prefix": "",
"urls": ["https://github.com/dzbarsky/static-clang/releases/download/v20.1.1-4/linux_amd64.tar.zst"],
},
},
}

[
[
llvm.toolchain(
name = "llvm_toolchain_{}_{}".format(exec_os, exec_cpu),
exec_arch = exec_cpu,
exec_os = exec_os if exec_os != "macos" else "darwin",
llvm_version = "20.1.2"
sha256 = {"": dzbarsky_static_clang[exec_os][exec_cpu]["sha256"]},
strip_prefix = {"": dzbarsky_static_clang[exec_os][exec_cpu]["strip_prefix"]},
urls = {"": dzbarsky_static_clang[exec_os][exec_cpu]["urls"]},
llvm_version = "20.1.1"
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@dzbarsky dzbarsky Oct 15, 2025

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You can drop the version now, I think it will be ignored

),
llvm.sysroot(
name = "llvm_toolchain_{}_{}".format(exec_os, exec_cpu),
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