middleman/middleman-core/lib/middleman-core/core_extensions/external_helpers.rb

31 lines
1.2 KiB
Ruby

module Middleman
module CoreExtensions
# Load helpers in `helpers/`
class ExternalHelpers < Extension
define_setting :helpers_dir, 'helpers', 'Directory to autoload helper modules from'
define_setting :helpers_filename_glob, '**.rb', 'Glob pattern for matching helper ruby files'
define_setting :helpers_filename_to_module_name_proc, proc { |filename|
basename = File.basename(filename, File.extname(filename))
basename.camelcase
}, 'Proc implementing the conversion from helper filename to module name'
def after_configuration
helpers_path = File.join(app.root, app.config[:helpers_dir])
return unless File.exist?(helpers_path)
glob = File.join(helpers_path, app.config[:helpers_filename_glob])
::Middleman::Util.glob_directory(glob).each do |filename|
module_name = app.config[:helpers_filename_to_module_name_proc].call(filename)
next unless module_name
require filename
next unless Object.const_defined?(module_name.to_sym)
app.template_context_class.send :include, Object.const_get(module_name.to_sym)
end
end
end
end
end