Run a ruby or shell script remotely

ssx

# Run a ruby or shell script remotely
#
# Install:
# - Put the file in your home directory
# - Source it from your .bashrc: 
#   if [ -f $HOME/ssx ]; then source $HOME/ssx; fi

ssx() {
	show_usage() {
		echo "Run a ruby or shell script remotely"
		echo "Usage: ssx [HOST] SCRIPT" 
		echo "Either provide a HOST or add '#- HOST' as the first line of your script"
	}

	if [ $# -lt 1 ]; then
		show_usage
		return
	fi

	if [ $# -lt 2 ]; then
		script=$1
		header=$(head -n 1 $script)
		if [[ $header =~ ^#-\s*(.*) ]]; then
			host=${BASH_REMATCH[1]}
		else
			show_usage
			return
		fi
	else
		host=$1
		script=$2
	fi

	if [[ $script == *.rb ]]; then
		ssh $host 'ruby' < "$script"
		return
	fi

	if [[ $script == *.sh ]]; then
		ssh $host 'bash' < "$script"
		return
	fi
}