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# frozen_string_literal: true
require 'yaml'
# The `yaml_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.
#
# @since 4.8.0
#
Puppet::Functions.create_function(:yaml_data) do
# @since 4.8.0
dispatch :yaml_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 yaml_data(options, context)
path = options['path']
context.cached_file_data(path) do |content|
data = Puppet::Util::Yaml.safe_load(content, [Symbol], path)
if data.is_a?(Hash)
Puppet::Pops::Lookup::HieraConfig.symkeys_to_string(data)
else
msg = _("%{path}: file does not contain a valid yaml hash" % { path: path })
raise Puppet::DataBinding::LookupError, msg if Puppet[:strict] == :error && data != false
Puppet.warning(msg)
{}
end
rescue Puppet::Util::Yaml::YamlLoadError => ex
# YamlLoadErrors include the absolute path to the file, so no need to add that
raise Puppet::DataBinding::LookupError, _("Unable to parse %{message}") % { message: ex.message }
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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