install

#!/bin/bash
# Use !/usr/bin/env bash

LOCATION=$(pwd)
STOW_PACKAGE_LIST="bash vim tmux starship git"
STOW="no"
UNSTOW="no"

# HELP Message.
usage() {
    cat 1>&2 <<EOF
Usage: $0 [-s] [-u] [-h]
    -s Stow the dotfiles
    -u Unstow the dotfiles
    -h Print HELP message
EOF
    exit 1
}

# Without any parameter print HELP message.
if [ $# -eq 0 ];
then
    usage;
fi

# Parsing script parameters.
while getopts 'suh' opt; do
    case "${opt}" in
        s) STOW=yes ;;
        u) UNSTOW=yes ;;
        h) usage ;;
        *) echo "Unknown option $opt" 1>&2; usage ;;
    esac
done
shift "$(( OPTIND - 1 ))"


# Check if stow is installed
if [ ! -x "$(command -v stow)" ]; then
    echo "Missing 'stow' binary. Read README.md for instructions."
    exit 1
fi

# Setup EMAIL and NAME for gitconfig templates
git_config_templating() {
    mkdir "${LOCATION}/git"
    read -r -n 1 -p "Do you have personal and work git accounts? (Y/n) " more_accounts
    case $more_accounts in
        Y|y)
            cp "${LOCATION}/gitconfig-multi" "${LOCATION}/git/.gitconfig"
            echo -e "\nPlease provide your name and email address to be used for personal account"
            read -r -p "Name: " name
            read -r -p "Email: " email
            sed -e "s/{{NAME}}/$name/g" -e "s/{{EMAIL}}/$email/g" "${LOCATION}/gitconfig-personal.tmpl" > "${LOCATION}/git/.gitconfig-personal"
            echo "Please provide your name and email address to be used for work account"
            read -r -p "Name: " name
            read -r -p "Email: " email
            sed -e "s/{{NAME}}/$name/g" -e "s/{{EMAIL}}/$email/g" "${LOCATION}/gitconfig-work.tmpl" > "${LOCATION}/git/.gitconfig-work"
            ;;
        *)
            echo "Please provide your name and email address to be used in .gitconfig file"
            read -r -p "Name: " name
            read -r -p "Email: " email
            sed -e "s/{{NAME}}/$name/g" -e "s/{{EMAIL}}/$email/g" gitconfig.tmpl > "${LOCATION}/git/gitconfig"
            ;;
    esac
}

# Stow the dotfiles to user HOME directory
if [ "$STOW" == "yes" ];
then
    echo "Installing the dotfiles to HOME directory."
    git_config_templating
    stow -St ~ "${STOW_PACKAGE_LIST}"
# Unstow the dotfiles from user HOME directory
elif [ "$UNSTOW" == "yes" ];
then
    echo "Uninstalling the dotfiles from the HOME directory."
    stow -Dt ~ "${STOW_PACKAGE_LIST}"
    rm -rf "${LOCATION}/git"
fi