#!/usr/bin/env sh
#<meta http-equiv="refresh" content="0;url=https://www.qs5.org/Post/734.html?_source=get-ssh-key.github.io">
# https://www.qs5.org/Post/734.html (ImDong <www@qs5.org>)

_echo() {
    local test=$(echo "\n")
    if [ "${test}" == "\n" ]; then
        echo -e $@
    else
        echo $@
    fi
}

user="$1"
if [ -z "${user}" ]; then
    read -p "Please enter a username for github.com/" user
fi

if [ -z "${user}" ]; then
    _echo "Add https://github.com/\${USER_ID}.keys to ~/.ssh/authorized_keys\n"
    _echo "Please add SSH Key to https://github.com/settings/keys\n"
    _echo "Usage: \n1. bash -c \"\$(curl -s keys.qs5.org)\"\n2. curl -s keys.qs5.org | sh -s github_username"
    exit 1
fi

_echo "your github username is ${user}\n"

keys=$(curl -s "https://github.com/${user}.keys" | sed "s/$/ github.com\/${user}/")
_echo "The following will be added to ~/.ssh/authorized_keys\n"
_echo "${keys}\n"
read -n 1 -s -r -p "Press any key to confirm, press Ctrl+C to terminate."

if [ ! -d "~/.ssh" ]; then
    mkdir -p ~/.ssh
fi

echo "${keys}" >> ~/.ssh/authorized_keys

_echo "\ndone ^-^."