Class: Sprockets::Helpers::RailsHelper::AssetPaths

Inherits:
ActionView::AssetPaths show all
Defined in:
lib/sprockets/helpers/rails_helper.rb

Overview

:nodoc:

Defined Under Namespace

Classes: AssetNotPrecompiledError

Instance Attribute Summary collapse

Attributes inherited from ActionView::AssetPaths

#config, #controller

Instance Method Summary collapse

Methods inherited from ActionView::AssetPaths

#compute_public_path, #compute_source_path, #initialize, #is_uri?

Constructor Details

This class inherits a constructor from ActionView::AssetPaths

Instance Attribute Details

#asset_digests ⇒ Object

Returns the value of attribute asset_digests.



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# File 'lib/sprockets/helpers/rails_helper.rb', line 118

def asset_digests
  @asset_digests
end

#asset_environment ⇒ Object

Returns the value of attribute asset_environment.



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# File 'lib/sprockets/helpers/rails_helper.rb', line 118

def asset_environment
  @asset_environment
end

#asset_prefix ⇒ Object

Returns the value of attribute asset_prefix.



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# File 'lib/sprockets/helpers/rails_helper.rb', line 118

def asset_prefix
  @asset_prefix
end

#compile_assets ⇒ Object

Returns the value of attribute compile_assets.



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# File 'lib/sprockets/helpers/rails_helper.rb', line 118

def compile_assets
  @compile_assets
end

#digest_assets ⇒ Object

Returns the value of attribute digest_assets.



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# File 'lib/sprockets/helpers/rails_helper.rb', line 118

def digest_assets
  @digest_assets
end

Instance Method Details

#asset_for(source, ext) ⇒ Object 



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# File 'lib/sprockets/helpers/rails_helper.rb', line 122

def asset_for(source, ext)
  source = source.to_s
  return nil if is_uri?(source)
  source = rewrite_extension(source, nil, ext)
  asset_environment[source]
rescue Sprockets::FileOutsidePaths
  nil
end

#digest_for(logical_path) ⇒ Object 



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# File 'lib/sprockets/helpers/rails_helper.rb', line 131

def digest_for(logical_path)
  if digest_assets && asset_digests && (digest = asset_digests[logical_path])
    return digest
  end

  if compile_assets
    if digest_assets && asset = asset_environment[logical_path]
      return asset.digest_path
    end
    return logical_path
  else
    raise AssetNotPrecompiledError.new("#{logical_path} isn't precompiled")
  end
end

#exact_match_present?(source) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/sprockets/helpers/rails_helper.rb', line 173

def exact_match_present?(source)
  pathname = asset_environment.resolve(source)
  pathname.to_s =~ /#{Regexp.escape(source)}\Z/
rescue Sprockets::FileNotFound
  false
end

#rewrite_asset_path(source, dir, options = {}) ⇒ Object 



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# File 'lib/sprockets/helpers/rails_helper.rb', line 146

def rewrite_asset_path(source, dir, options = {})
  if source[0] == ?/
    source
  else
    if digest_assets && options[:digest] != false
      source = digest_for(source)
    end
    source = File.join(dir, source)
    source = "/#{source}" unless source =~ /^\//
    source
  end
end

#rewrite_extension(source, dir, ext) ⇒ Object 



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# File 'lib/sprockets/helpers/rails_helper.rb', line 159

def rewrite_extension(source, dir, ext)
  source_ext = File.extname(source)[1..-1]

  if !ext || ext == source_ext
    source
  elsif source_ext.blank?
    "#{source}.#{ext}"
  elsif File.exists?(source) || exact_match_present?(source)
    source
  else
    "#{source}.#{ext}"
  end
end