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670 B

#!/bin/sh
if [ "$1" = '-h' ] ; then
echo 'Updates rustc & clippy'
echo 'It first checks if clippy would compile at currentl nightly and if so, it updates.'
echo 'Options:'
echo '-h: This help message'
echo '-f: Skips the check and just updates'
exit
fi
set -ex
renice -n 10 -p $$
export CARGO_INCREMENTAL=0
export RUSTFLAGS='-C target-cpu=native'
try_out() {
export RUSTUP_HOME=$HOME/.rustup-attempt
test -d $RUSTUP_HOME || (rustup toolchain add nightly && rustup default nightly)
rustup update
cargo +nightly install --force clippy
unset RUSTUP_HOME
export RUSTUP_HOME
}
[ "$1" = '-f' ] || try_out
rustup update
cargo +nightly install --force clippy