Class: Propshaft::LoadPath

Inherits:
Object
  • Object
show all
Defined in:
lib/propshaft/load_path.rb

Defined Under Namespace

Classes: NullFileWatcher

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(paths = [], compilers:, version: nil, file_watcher: nil, integrity_hash_algorithm: nil) ⇒ LoadPath

Returns a new instance of LoadPath.



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# File 'lib/propshaft/load_path.rb', line 17

def initialize(paths = [], compilers:, version: nil, file_watcher: nil, integrity_hash_algorithm: nil)
  @paths, @compilers, @version, @integrity_hash_algorithm = dedup(paths), compilers, version, integrity_hash_algorithm
  @file_watcher = file_watcher || NullFileWatcher
end

Instance Attribute Details

#compilers ⇒ Object (readonly)

Returns the value of attribute compilers.



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# File 'lib/propshaft/load_path.rb', line 15

def compilers
  @compilers
end

#integrity_hash_algorithm ⇒ Object (readonly)

Returns the value of attribute integrity_hash_algorithm.



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# File 'lib/propshaft/load_path.rb', line 15

def integrity_hash_algorithm
  @integrity_hash_algorithm
end

#paths ⇒ Object (readonly)

Returns the value of attribute paths.



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# File 'lib/propshaft/load_path.rb', line 15

def paths
  @paths
end

#version ⇒ Object (readonly)

Returns the value of attribute version.



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# File 'lib/propshaft/load_path.rb', line 15

def version
  @version
end

Instance Method Details

#asset_paths_by_glob(glob) ⇒ Object 



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# File 'lib/propshaft/load_path.rb', line 39

def asset_paths_by_glob(glob)
  (@cached_asset_paths_by_glob ||= Hash.new)[glob] ||=
    extract_logical_paths_from(assets.select { |a| a.path.fnmatch?(glob) })
end

#asset_paths_by_type(content_type) ⇒ Object 



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# File 'lib/propshaft/load_path.rb', line 34

def asset_paths_by_type(content_type)
  (@cached_asset_paths_by_type ||= Hash.new)[content_type] ||=
    extract_logical_paths_from(assets.select { |a| a.content_type == Mime::EXTENSION_LOOKUP[content_type] })
end

#assets ⇒ Object 



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# File 'lib/propshaft/load_path.rb', line 30

def assets
  assets_by_path.values
end

#cache_sweeper ⇒ Object

Returns a file watcher object configured to clear the cache of the load_path when the directories passed during its initialization have changes. This is used in development and test to ensure the map caches are reset when javascript files are changed.



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# File 'lib/propshaft/load_path.rb', line 53

def cache_sweeper
  @cache_sweeper ||= begin
    exts_to_watch  = Mime::EXTENSION_LOOKUP.map(&:first)
    files_to_watch = Array(paths).collect { |dir| [ dir.to_s, exts_to_watch ] }.to_h
    mutex = Mutex.new

    @file_watcher.new([], files_to_watch) do
      mutex.synchronize do
        clear_cache
        seed_cache
      end
    end
  end
end

#find(asset_name) ⇒ Object 



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# File 'lib/propshaft/load_path.rb', line 22

def find(asset_name)
  assets_by_path[asset_name]
end

#find_referenced_by(asset) ⇒ Object 



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# File 'lib/propshaft/load_path.rb', line 26

def find_referenced_by(asset)
  compilers.referenced_by(asset).delete(self)
end

#manifest ⇒ Object 



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# File 'lib/propshaft/load_path.rb', line 44

def manifest
  Propshaft::Manifest.new(integrity_hash_algorithm: integrity_hash_algorithm).tap do |manifest|
    assets.each { |asset| manifest.push_asset(asset) }
  end
end