Class: Sprockets::AssetAttributes
- Inherits:
-
Object
- Object
- Sprockets::AssetAttributes
- Defined in:
- lib/sprockets/asset_attributes.rb
Overview
‘AssetAttributes` is a wrapper similar to `Pathname` that provides some helper accessors.
These methods should be considered internalish.
Instance Attribute Summary collapse
-
#environment ⇒ Object
readonly
Returns the value of attribute environment.
-
#pathname ⇒ Object
readonly
Returns the value of attribute pathname.
Instance Method Summary collapse
-
#content_type ⇒ Object
Returns the content type for the pathname.
-
#engine_extensions ⇒ Object
Returns an ‘Array` of engine extensions.
-
#engines ⇒ Object
Returns engine classes.
-
#extensions ⇒ Object
Returns ‘Array` of extension `String`s.
-
#format_extension ⇒ Object
Returns the format extension.
-
#initialize(environment, path) ⇒ AssetAttributes
constructor
A new instance of AssetAttributes.
-
#logical_path ⇒ Object
Reverse guess logical path for fully expanded path.
-
#processors ⇒ Object
Returns all processors to run on the path.
-
#search_paths ⇒ Object
Returns paths search the load path for.
Constructor Details
#initialize(environment, path) ⇒ AssetAttributes
Returns a new instance of AssetAttributes.
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# File 'lib/sprockets/asset_attributes.rb', line 11 def initialize(environment, path) @environment = environment @pathname = path.is_a?(Pathname) ? path : Pathname.new(path.to_s) end |
Instance Attribute Details
#environment ⇒ Object (readonly)
Returns the value of attribute environment.
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# File 'lib/sprockets/asset_attributes.rb', line 9 def environment @environment end |
#pathname ⇒ Object (readonly)
Returns the value of attribute pathname.
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# File 'lib/sprockets/asset_attributes.rb', line 9 def pathname @pathname end |
Instance Method Details
#content_type ⇒ Object
Returns the content type for the pathname. Falls back to ‘application/octet-stream`.
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# File 'lib/sprockets/asset_attributes.rb', line 99 def content_type @content_type ||= begin if format_extension.nil? engine_content_type || 'application/octet-stream' else @environment.mime_types(format_extension) || engine_content_type || 'application/octet-stream' end end end |
#engine_extensions ⇒ Object
Returns an ‘Array` of engine extensions.
"foo.js.coffee.erb"
# => [".coffee", ".erb"]
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# File 'lib/sprockets/asset_attributes.rb', line 76 def engine_extensions exts = extensions if offset = extensions.index(format_extension) exts = extensions[offset+1..-1] end exts.select { |ext| @environment.engines(ext) } end |
#engines ⇒ Object
Returns engine classes.
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# File 'lib/sprockets/asset_attributes.rb', line 87 def engines engine_extensions.map { |ext| @environment.engines(ext) } end |
#extensions ⇒ Object
Returns ‘Array` of extension `String`s.
"foo.js.coffee"
# => [".js", ".coffee"]
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# File 'lib/sprockets/asset_attributes.rb', line 56 def extensions @extensions ||= @pathname.basename.to_s.scan(/\.[^.]+/) end |
#format_extension ⇒ Object
Returns the format extension.
"foo.js.coffee"
# => ".js"
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# File 'lib/sprockets/asset_attributes.rb', line 65 def format_extension extensions.reverse.detect { |ext| @environment.mime_types(ext) && !@environment.engines(ext) } end |
#logical_path ⇒ Object
Reverse guess logical path for fully expanded path.
This has some known issues. For an example if a file is shaddowed in the path, but is required relatively, its logical path will be incorrect.
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# File 'lib/sprockets/asset_attributes.rb', line 39 def logical_path if root_path = environment.paths.detect { |path| pathname.to_s[path] } path = pathname.to_s.sub("#{root_path}/", '') path = pathname.relative_path_from(Pathname.new(root_path)).to_s path = engine_extensions.inject(path) { |p, ext| p.sub(ext, '') } path = "#{path}#{engine_format_extension}" unless format_extension path else raise FileOutsidePaths, "#{pathname} isn't in paths: #{environment.paths.join(', ')}" end end |
#processors ⇒ Object
Returns all processors to run on the path.
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# File 'lib/sprockets/asset_attributes.rb', line 92 def processors environment.preprocessors(content_type) + engines.reverse + environment.postprocessors(content_type) end |
#search_paths ⇒ Object
Returns paths search the load path for.
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# File 'lib/sprockets/asset_attributes.rb', line 17 def search_paths paths = [pathname.to_s] path_without_extensions = extensions.inject(pathname) { |p, ext| p.sub(ext, '') } # optimization: component.json can only be nested one level deep if !path_without_extensions.to_s.index('/') paths << path_without_extensions.join("component.json").to_s end if pathname.basename(extensions.join).to_s != 'index' paths << path_without_extensions.join("index#{extensions.join}").to_s end paths end |