Git `pre-commit` hook that checks Rust code style with `cargo fmt`

pre-commit-cargo-fmt

#!/bin/bash

CARGO_HOME=/Users/joonho/.cargo

diff=$($CARGO_HOME/bin/cargo fmt -- --check)
result=$?

if [[ ${result} -ne 0 ]] ; then
    cat <<\EOF
There are some code style issues, run `cargo fmt` first.
EOF
    exit 1
fi

exit 0