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# frozen_string_literal: true
Puppet::Parser::Functions.newfunction(:template, :type => :rvalue, :arity => -2, :doc =>
"Loads an ERB template from a module, evaluates it, and returns the resulting
value as a string.
The argument to this function should be a `<MODULE NAME>/<TEMPLATE FILE>`
reference, which will load `<TEMPLATE FILE>` from a module's `templates`
directory. (For example, the reference `apache/vhost.conf.erb` will load the
file `<MODULES DIRECTORY>/apache/templates/vhost.conf.erb`.)
This function can also accept:
* An absolute path, which can load a template file from anywhere on disk.
* Multiple arguments, which will evaluate all of the specified templates and
return their outputs concatenated into a single string.") do |vals|
if Puppet[:tasks]
raise Puppet::ParseErrorWithIssue.from_issue_and_stack(
Puppet::Pops::Issues::FEATURE_NOT_SUPPORTED_WHEN_SCRIPTING,
{ :feature => 'ERB template' }
)
end
vals.collect do |file|
# Use a wrapper, so the template can't get access to the full
# Scope object.
debug "Retrieving template #{file}"
wrapper = Puppet::Parser::TemplateWrapper.new(self)
wrapper.file = file
begin
wrapper.result
rescue => detail
info = detail.backtrace.first.split(':')
message = []
message << _("Failed to parse template %{file}:") % { file: file }
message << _(" Filepath: %{file_path}") % { file_path: info[0] }
message << _(" Line: %{line}") % { line: info[1] }
message << _(" Detail: %{detail}") % { detail: detail }
raise Puppet::ParseError, message.join("\n") + "\n"
end
end.join("")
end
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