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Auto merge of #4713 - lzutao:no-reinstall-toolchain, r=phansch

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build: do not reinstall master toolchain if it is up-to-date

changelog: none
This commit is contained in:
bors 2019-10-24 17:30:40 +00:00
commit 37ea436821
1 changed files with 9 additions and 2 deletions
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11
setup-toolchain.sh
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@ -6,8 +6,15 @@ set -e
cd "$(dirname "$0")"
if [[ "$CI" == true ]] || ! command -v rustup-toolchain-install-master > /dev/null; then
cargo install -Z install-upgrade rustup-toolchain-install-master --bin rustup-toolchain-install-master
cargo install -Z install-upgrade rustup-toolchain-install-master --bin rustup-toolchain-install-master
fi
rustup-toolchain-install-master -f -n master -c rustc-dev
RUST_COMMIT=$(git ls-remote https://github.com/rust-lang/rust master | awk '{print $1}')
if rustc +master -Vv 2>/dev/null | grep -q "$RUST_COMMIT"; then
echo "info: master toolchain is up-to-date"
exit 0
fi
rustup-toolchain-install-master -f -n master -c rustc-dev -- "$RUST_COMMIT"
rustup override set master