bootstrap.sh

#!/usr/bin/env bash

prompt_yesno() {
    read -r -p "$1     [y]es / [n]o: "
    case "$(echo "$REPLY" | tr '[:upper:]' '[:lower:]')" in
        y|yes) return 0 ;;
        *)     return 1 ;;
    esac
}

clear
echo
echo    '--- --- --- MacOS environment bootstrap --- --- ---'
echo
echo -e "\033[1mWARNING\033[0m: this script will overwrite files"
echo    "such as ~/.bash_profile and ~/.gitignore."
echo
echo    "Confirm each action carefully."
echo

if [[ ! -f /var/db/locate.database ]]; then
    if prompt_yesno "Update locate database (/var/db/locate.database)?"; then
        sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.locate.plist
    fi
fi

CONFIG_PATH="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"
echo "Confirm dotfiles directory location (source of this script):"
echo "    $CONFIG_PATH"
echo
if ! prompt_yesno "Continue?"; then
    echo "Exiting" && exit 1
fi
echo

echo "$CONFIG_PATH" > "${CONFIG_PATH}/.CONFIG_PATH"
echo -e "\033[1mWrote\033[0m CONFIG_PATH marker:"
echo    "    src: $CONFIG_PATH"
echo    "    dest: ${CONFIG_PATH}/.CONFIG_PATH"
echo
ln -svf "${CONFIG_PATH}/.CONFIG_PATH" "${HOME}/.CONFIG_PATH"
echo

enable -n command
pushd "${CONFIG_PATH}/macOS" || exit 1
if [[ ! -x "$(command -v brew)" ]]; then
    if prompt_yesno "Install homebrew?"; then
        /usr/bin/env bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
    fi
fi
if prompt_yesno "Install packages with homebrew?"; then
    HOMEBREW_NO_ENV_HINTS=1 brew bundle --verbose
fi
popd || exit

if [[ -x "$(command -v brew)" ]]; then
    if [ "$SHELL" != "$(brew --prefix)/bin/bash" ]; then
        echo "Adding homebrew bash as default shell"
        if ! grep -q -F "$(brew --prefix)/bin/bash" /etc/shells; then
            sudo sh -c "echo $(brew --prefix)/bin/bash >> /etc/shells"
        fi
        chsh -s "$(brew --prefix)/bin/bash"
    fi
fi

for fname in bash_profile bashrc hushlogin; do
    if [[ -f "${HOME}/.${fname}" ]]; then
        echo -e "\e[0;91mWarning\033[0m: Target ~/.${fname} exists"
        if ! prompt_yesno "Overwrite ~/.${fname}?"; then
            echo "Skipping overwrite of ~/.${fname}"
        else
            ln -vfs "${CONFIG_PATH}/shell/.${fname}" "${HOME}/.${fname}"
        fi
    else
        ln -vfs "${CONFIG_PATH}/shell/.${fname}" "${HOME}/.${fname}"
        echo "Symlinked to new location ~/.${fname}"
    fi
    echo
done

if prompt_yesno "Symlink Git configuration?"; then
    if [[ -f "${HOME}/.gitconfig" ]]; then
        echo -e "\e[0;91mWarning\033[0m: Target ${CONFIG_PATH}/git/.gitconfig exists"
        if prompt_yesno 'Overwrite ~/.gitconfig?'; then
            ln -vfs "${CONFIG_PATH}/git/.gitignore_global" "${HOME}/.gitignore_global"
            ln -vfs "${CONFIG_PATH}/git/.gitconfig" "${HOME}/.gitconfig"
            echo
            if ! git config --global --get user.email > /dev/null; then
                read -r -p "Git global user.email: " GIT_CONFIG_USER_EMAIL
                set -x
                git config --global user.email "$GIT_CONFIG_USER_EMAIL"
                set +x
            fi
            if ! git config --global --get user.name> /dev/null; then
                default_name="$(id -F)"
                read -r -p "Git global user.name (default '$default_name'): " GIT_CONFIG_USER_NAME
                set -x
                git config --global user.name "$GIT_CONFIG_USER_NAME"
                set +x
            fi
        fi
    fi
fi

ln -vfs "${CONFIG_PATH}/.screenrc" "${HOME}/.screenrc"
ln -vfs "${CONFIG_PATH}/db/.sqliterc" "${HOME}/.sqliterc"