Class: Rake::Pipeline::Middleware

Inherits:
Object
  • Object
show all
Defined in:
lib/rake-pipeline/middleware.rb

Overview

This middleware is used to provide a server that will continuously compile your files on demand.

Examples:

use Rake::Pipeline::Middleware, Rake::Pipeline.build {
  input "app/assets"
  output "public"

  ...
}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(app, pipeline) ⇒ Middleware

Returns a new instance of Middleware.

Parameters:

  • a (#call) —

    Rack application

  • a (Pipeline) —

    Rake::Pipeline



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# File 'lib/rake-pipeline/middleware.rb', line 21

def initialize(app, pipeline)
  @app = app

  if pipeline.is_a?(String)
    pipeline_source = File.read(pipeline)
    pipeline = Pipeline.class_eval "build do\n#{pipeline_source}\nend", pipeline, 1
  end

  @pipeline = pipeline
end

Instance Attribute Details

#pipeline ⇒ Object

Returns the value of attribute pipeline.



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# File 'lib/rake-pipeline/middleware.rb', line 17

def pipeline
  @pipeline
end

Instance Method Details

#call(env) ⇒ Array(Fixnum, Hash, #each)

Automatically compiles your assets if required and serves them up.

Parameters:

  • env (Hash) —

    a Rack environment

Returns:

  • (Array(Fixnum, Hash, #each)) —

    A rack response



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# File 'lib/rake-pipeline/middleware.rb', line 37

def call(env)
  pipeline.invoke_clean
  path = env["PATH_INFO"]

  if filename = file_for(path)
    if File.directory?(filename)
      index = File.join(filename, "index.html")
      filename = File.file?(index) ? index : nil
    end

    if filename
      return response_for(filename)
    end
  end

  @app.call(env)
end