ts-add bash function: yarn add with typescript types in a single command

ts-add.sh

#!/usr/bin/env bash

# Add this function to your .bashrc/.zshrc
function ts-add () {
    if [ "$1" = "--dev" ] || [ "$1" = "-D" ]; then
        dev=true
        shift
    fi

    packages=("$@")
    types=()

    for p in "${packages[@]}"; do
        types+=("@types/$p")
    done

    echo "Adding ${#packages[@]} $(if [ "$dev" = true ]; then echo "dev "; fi)package(s):"
    echo "${packages[@]}"
    echo "with types:"
    echo "${types[@]}"
    echo

    if [ "$dev" = true ]; then
        yarn add --dev "${packages[@]}" || exit $?
    else
        yarn add "${packages[@]}" || exit $?
    fi

    yarn add --dev "${types[@]}"
}

ts-add "$@"