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rust-clippy/setup-toolchain.sh
Lzu Tao 46df9716af Prevent failing to restart setup-toolchain
If `rustup-toolchain-install-master` fails to install master
toolchain (in case `rustup update` executes at the same remove the
tmp directory), `cargo search` (which use master toolchain after
`rustup override` command) will fail. This leads to setup-toolchain
fails too.
2020-02-05 20:37:33 +07:00

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#!/bin/bash
# Set up the appropriate rustc toolchain
set -e
cd "$(dirname "$0")"
RTIM_PATH=$(command -v rustup-toolchain-install-master) || INSTALLED=false
CARGO_HOME=${CARGO_HOME:-$HOME/.cargo}
# Check if RTIM is not installed or installed in other locations not in ~/.cargo/bin
if [[ "$INSTALLED" == false || "$RTIM_PATH" == $CARGO_HOME/bin/rustup-toolchain-install-master ]]; then
cargo +nightly install rustup-toolchain-install-master
else
VERSION=$(rustup-toolchain-install-master -V | grep -o "[0-9.]*")
REMOTE=$(cargo +nightly search rustup-toolchain-install-master | grep -o "[0-9.]*")
echo "info: skipping updating rustup-toolchain-install-master at $RTIM_PATH"
echo " current version : $VERSION"
echo " remote version : $REMOTE"
fi
RUST_COMMIT=$(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
if [[ -n "$HOST_TOOLCHAIN" ]]; then
TOOLCHAIN=('--host' "$HOST_TOOLCHAIN")
else
TOOLCHAIN=()
fi
rustup-toolchain-install-master -f -n master "${TOOLCHAIN[@]}" -c rustc-dev -- "$RUST_COMMIT"
rustup override set master