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Contents
module Lita
# Finds the file path of the most appropriate template for the given adapter.
# @api private
# @since 4.2.0
class TemplateResolver
# @param template_root [String] The directory to search for templates.
# @param template_name [String] The name of the template to search for.
# @param adapter_name [String, Symbol] The name of the current adapter.
def initialize(template_root, template_name, adapter_name)
@template_root = template_root
@template_name = template_name
@adapter_name = adapter_name
end
# Returns the adapter-specific template, falling back to a generic template.
# @return [String] The path of the template to use.
# @raise [MissingTemplateError] If no templates with the given name exist.
def resolve
return adapter_template if File.exist?(adapter_template)
return generic_template if File.exist?(generic_template)
raise MissingTemplateError, I18n.t("lita.template.missing_template", path: generic_template)
end
private
# The directory to search for templates.
attr_reader :template_root
# The name of the template to search for.
attr_reader :template_name
# The name of the current adapter.
attr_reader :adapter_name
# Path to the adapter-specific template.
def adapter_template
@adapter_template ||= File.join(template_root, "#{template_name}.#{adapter_name}.erb")
end
# Path to the generic template.
def generic_template
@generic_template ||= File.join(template_root, "#{template_name}.erb")
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems