Class: Asset::Util

Inherits:
Object
  • Object
show all
Defined in:
lib/assets/util.rb

Class Method Summary collapse

Class Method Details

.asset_path(path) ⇒ Object

Asset path



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# File 'lib/assets/util.rb', line 10

def self.asset_path(path)
  File.join(::Asset.path, path)
end

.digest(string) ⇒ Object

Digest



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# File 'lib/assets/util.rb', line 15

def self.digest(string)
  Digest::MD5.hexdigest(string)
end

.load_images ⇒ Object

Load images into memory



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# File 'lib/assets/util.rb', line 50

def self.load_images
  # Store the path and the timestamp
  images = Dir["#{::Asset.path}/images/**/*"].select{|f| File.file?(f)}.map do |i|
    i =~ /\/images\/(.+)/; [$1, mtime("images/#{$1}").to_i]
  end
  Hash[*images.flatten]
end

.load_manifest ⇒ Object

Load manifest



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# File 'lib/assets/util.rb', line 20

def self.load_manifest
  manifest = []
  list = Dir["#{Asset.path}/{css,js}/**/*"].select{|f| File.file?(f)}.each do |file|
    # Extract type and name
    file =~ /(js|css)\/(.+)$/; type, name = $1, $2

    # Get the modified time
    # Get the modified time of the asset
    modified = mtime("#{type}/#{name}")

    # Loading manifest with items
    manifest << ::Asset::Item.new(name, type, digest(File.read(file)), modified)
  end

  # Insert the css bundle
  css = manifest.select{|r| r.type == 'css'}
  # Get the max modified date and the keys
  max, keys = css.map{|r| r.modified}.max, css.map{|r| r.key}.join
  manifest.insert(0, ::Asset::Item.new('bundle.css', 'css', digest(keys), max))

  # Insert the js bundle
  js = manifest.select{|r| r.type == 'js'}
  # Get the max modified date and the keys
  max, keys = js.map{|r| r.modified}.max, js.map{|r| r.key}.join
  manifest.insert(0, ::Asset::Item.new('bundle.js', 'js', digest(keys), max))

  manifest
end

.mtime(path) ⇒ Object

Get timestamp



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# File 'lib/assets/util.rb', line 5

def self.mtime(path)
  File.mtime(asset_path(path)).utc
end