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馃懛 ci: derive the wheel toolchain from rust-toolchain.toml #689

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Merged
gaborbernat merged 2 commits into from
Aug 23, 2026
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馃懛 ci: derive the wheel toolchain from rust-toolchain.toml #689

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馃懛 ci: derive the wheel toolchain from rust-toolchain.toml
gaborbernat Aug 23, 2026
546326a
馃懛 ci: read the toolchain under bash on every runner
gaborbernat Aug 23, 2026
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21 changes: 17 additions & 4 deletions .github/workflows/dist.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -83,15 +83,28 @@ jobs:
done
echo "CIBW_MANYLINUX_${ARCH^^}_IMAGE=$manylinux" >> "$GITHUB_ENV"
echo "CIBW_MUSLLINUX_${ARCH^^}_IMAGE=$musllinux" >> "$GITHUB_ENV"
- name: Read the toolchain rustup should install
id: rust
shell: bash
run: |
python3 - <<'EOF' >> "$GITHUB_OUTPUT"
import tomllib
from pathlib import Path

toolchain = tomllib.loads(Path("rust-toolchain.toml").read_text())["toolchain"]
flags = ["--default-toolchain", toolchain["channel"]]
flags += [word for name in toolchain["components"] for word in ("--component", name)]
print("flags=" + " ".join(flags))
EOF
- name: Build wheels
uses: pypa/cibuildwheel@1828c10ab37f080699c7b81cea34097c684a7074 # v4.2.0
env:
CIBW_ARCHS: ${{ matrix.platform.arch }}
# Install the pinned toolchain and its components up front. Left to rust-toolchain.toml, the first
# cargo call in each container provisions them on demand, which races and conflicts on the
# cargo-clippy hardlink on aarch64. Keep the channel and components in sync with rust-toolchain.toml.
# Install the toolchain and its components up front. Left to rust-toolchain.toml, the first cargo
# call in each container provisions them on demand, which races and conflicts on the cargo-clippy
# hardlink on aarch64.
CIBW_BEFORE_ALL_LINUX: >-
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --profile minimal --default-toolchain 1.98 --component clippy --component llvm-tools-preview --component rustfmt
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --profile minimal ${{ steps.rust.outputs.flags }}
# 3.15 is still a prerelease, so cpython-prerelease enables its free-threaded build.
CIBW_BUILD: ${{ matrix.identifiers || format('{0}-*', matrix.build) }}
CIBW_ENABLE: pypy cpython-prerelease
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