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Current File : //opt/puppetlabs/puppet/lib/ruby/vendor_ruby/puppet/functions/hocon_data.rb

# The `hocon_data` is a hiera 5 `data_hash` data provider function.
# See [the configuration guide documentation](https://puppet.com/docs/puppet/latest/hiera_config_yaml_5.html#configuring-a-hierarchy-level-built-in-backends) for
# how to use this function.
#
# Note that this function is not supported without a hocon library being present.
#
# @since 4.9.0
#
Puppet::Functions.create_function(:hocon_data) do
  unless Puppet.features.hocon?
    raise Puppet::DataBinding::LookupError, _('Lookup using Hocon data_hash function is not supported without hocon library')
  end

  require 'hocon'
  require 'hocon/config_error'

  dispatch :hocon_data do
    param 'Struct[{path=>String[1]}]', :options
    param 'Puppet::LookupContext', :context
  end

  argument_mismatch :missing_path do
    param 'Hash', :options
    param 'Puppet::LookupContext', :context
  end

  def hocon_data(options, context)
    path = options['path']
    context.cached_file_data(path) do |content|
      begin
        Hocon.parse(content)
      rescue Hocon::ConfigError => ex
        raise Puppet::DataBinding::LookupError, _("Unable to parse (%{path}): %{message}") % { path: path, message: ex.message }
      end
    end
  end

  def missing_path(options, context)
    "one of 'path', 'paths' 'glob', 'globs' or 'mapped_paths' must be declared in hiera.yaml when using this data_hash function"
  end
end

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