rust install and update script

rust_install.sh

#!/bin/bash

set -eu

echo "Installing rust"

if !(type "cargo" > /dev/null 2>&1); then
    curl https://sh.rustup.rs -sSf | sh
    source ~/.bashrc
else
    echo "Rust already installed"
fi

which rustc
rustc --version

echo "rustc settings"

rustup component add rust-src
rustup toolchain add nightly

echo "Installing cargo packages"
echo "cargo install crates....."

PACKAGES=(cargo-edit cargo-update cargo-watch racer)

for item in ${PACKAGES[@]}; do
    if !(cargo install --list | grep $item > /dev/null); then
        cargo install $item
    fi
done

COMPONENTS=(rustfmt clippy)

for item in ${COMPONENTS[@]}; do
    if !(rustup component list | grep $item > /dev/null); then
        rustup component add $item
    fi
done

echo "Install finished 🦀"