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Contents
# frozen_string_literal: true
module Proscenium
class Middleware
extend ActiveSupport::Autoload
# Error when the build command fails.
class BuildError < StandardError; end
autoload :Base
autoload :Esbuild
autoload :Runtime
autoload :OutsideRoot
def initialize(app)
@app = app
end
def call(env)
request = Rack::Request.new(env)
return @app.call(env) if !request.get? && !request.head?
attempt(request) || @app.call(env)
end
private
# Look for the precompiled file in public/assets first, then fallback to the Proscenium
# middleware that matches the type of file requested, ie: .js => esbuild.
# See Rails.application.config.proscenium.glob_types.
def attempt(request)
return unless (type = find_type(request))
file_handler.attempt(request.env) || type.attempt(request)
end
# Returns the type of file being requested using Rails.application.config.proscenium.glob_types.
def find_type(request)
path = Pathname.new(request.path)
# Non-production only!
if request.query_string == 'outsideRoot'
return if Rails.env.production?
return OutsideRoot if path.fnmatch?(glob_types[:outsideRoot], File::FNM_EXTGLOB)
end
return Runtime if path.fnmatch?(glob_types[:runtime], File::FNM_EXTGLOB)
return Esbuild if path.fnmatch?(glob_types[:esbuild], File::FNM_EXTGLOB)
end
def file_handler
::ActionDispatch::FileHandler.new Rails.public_path.join('assets').to_s,
headers: { 'X-Proscenium-Middleware' => 'precompiled' }
end
def glob_types
Rails.application.config.proscenium.glob_types
end
end
end
Version data entries
18 entries across 18 versions & 1 rubygems