Configure ssh host

.bash_profile

# creates an SSH key and uploads it to the given host
configure_ssh_host()
{
	username=$1
	hostname=$2
	identifier=$3
	keyfile=$4
	
	if [[ "$identifier" == "" ]] || [[ "$username" == "" ]] || [[ "$hostname" == "" ]] || [[ "$keyfile" == "" ]]
	then
		echo "usage: configure_ssh_host <username> <hostname> <identifier> <keyfile>"
	else
		ssh-keygen -f ~/.ssh/$keyfile.id_rsa -C "$USER $(date +'%Y/%m%/%d %H:%M:%S')"
		
		echo -e "Host $identifier\n\tHostName $hostname\n\tUser $username\n\tIdentityFile ~/.ssh/$keyfile.id_rsa" >> ~/.ssh/config
		
		ssh $identifier 'mkdir -p .ssh && cat >> ~/.ssh/authorized_keys' < ~/.ssh/$keyfile.id_rsa.pub
		
		tput bold; ssh -o PasswordAuthentication=no $identifier true && { tput setaf 2; echo 'Success!'; } || { tput setaf 1; echo 'Failure'; }; tput sgr0
		
		ssh_load_autocomplete
	fi
}

# adds ~/.ssh/config to the ssh autocomplete
ssh_load_autocomplete()
{
	complete -W "$(awk '/^\s*Host\s*/ { sub(/^\s*Host /, ""); print; }' ~/.ssh/config)" ssh
}

# adds ~/.ssh/config to the ssh autocomplete
ssh_load_autocomplete