install

#!/usr/bin/env bash

readonly INSTALL_PATH="$( cd $( dirname $0 )/../ && pwd -P )"
source $INSTALL_PATH/lib/cli.sh

process_input() {
    local user_response="$1"
    local accept_msg="$2"

    case $user_response in
        y|Y) echo "$accept_msg"             ;;
        n|N) echo "Exiting..."; exit        ;;
        *) CLI_abort "Invalid option. Exiting." ;;
    esac
}

path="${1:-/usr/local/bin}"

if ! [[ -d $path ]]; then
    CLI_abort "[$path] is not a directory. Exiting."
elif ! [[ $PATH =~ $path ]]; then
    echo "[$path] is not in your \$PATH."
    echo "This means you won't be able to source the files without"
    printf "specifying the full path to the file. Continue anyway? (y/n): "
    read
    process_input "$REPLY" "Continuing with installation"
fi

printf "About to install files to [$path]. Continue? (y/n): "
read

process_input "$REPLY" "Installing to [$path]."

for file in "$INSTALL_PATH"/lib/*.sh; do
    if [[ -f "$path/${file##*/}" ]]; then
        echo "$path/${file##*/} already exists. Skipping."
        continue
    fi
    ln -s "$file" "$path/${file##*/}"
done