Validate YAML in ruby - useful for hiera

ruby-yaml-validate.sh

#!/bin/bash

#
# Efstathios Xagoraris <sxagoraris@gmail.com>
# Validate YAML files using ruby
#


if [ $# -eq 0 ]
  then
    echo "Please provide a yaml file as argument eg $0 file.yaml"
    exit 1
fi

ruby -ryaml -e "YAML.parse(File.open('${1}'))" 

if [[ $? -ne 0 ]]
  then
    echo "$1 is not valid YAML"
    exit 1
  else
    echo "$1 is a valid YAML"
fi

Alternative solution

#!/usr/bin/env ruby

require 'yaml'

Dir.glob('**/*{yml,yaml}') { |file|
    begin
        YAML.parse(File.open(file))
        puts "#{file} \e[32mvalid\e[0m"
    rescue => exception
        puts "#{file} \e[31minvalid\e[0m"
        fail
    end
}

Looks much better! Thanks