mirror of
https://github.com/rails/rails.git
synced 2022-11-09 12:12:34 -05:00
158 lines
4.4 KiB
Ruby
158 lines
4.4 KiB
Ruby
module ActionView #:nodoc:
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class PathSet < Array #:nodoc:
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def self.type_cast(obj)
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if obj.is_a?(String)
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if Base.warn_cache_misses && defined?(Rails) && Rails.initialized?
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Base.logger.debug "[PERFORMANCE] Processing view path during a " +
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"request. This an expense disk operation that should be done at " +
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"boot. You can manually process this view path with " +
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"ActionView::Base.process_view_paths(#{obj.inspect}) and set it " +
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"as your view path"
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end
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Path.new(obj)
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else
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obj
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end
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end
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def initialize(*args)
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super(*args).map! { |obj| self.class.type_cast(obj) }
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end
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def <<(obj)
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super(self.class.type_cast(obj))
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end
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def concat(array)
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super(array.map! { |obj| self.class.type_cast(obj) })
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end
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def insert(index, obj)
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super(index, self.class.type_cast(obj))
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end
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def push(*objs)
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super(*objs.map { |obj| self.class.type_cast(obj) })
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end
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def unshift(*objs)
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super(*objs.map { |obj| self.class.type_cast(obj) })
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end
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class Path #:nodoc:
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attr_reader :path, :paths
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delegate :to_s, :to_str, :hash, :inspect, :to => :path
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def initialize(path, load = false)
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raise ArgumentError, "path already is a Path class" if path.is_a?(Path)
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@path = path.freeze
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reload! if load
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end
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def ==(path)
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to_str == path.to_str
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end
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def eql?(path)
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to_str == path.to_str
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end
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# Returns a ActionView::Template object for the given path string. The
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# input path should be relative to the view path directory,
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# +hello/index.html.erb+. This method also has a special exception to
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# match partial file names without a handler extension. So
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# +hello/index.html+ will match the first template it finds with a
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# known template extension, +hello/index.html.erb+. Template extensions
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# should not be confused with format extensions +html+, +js+, +xml+,
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# etc. A format must be supplied to match a formated file. +hello/index+
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# will never match +hello/index.html.erb+.
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#
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# This method also has two different implementations, one that is "lazy"
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# and makes file system calls every time and the other is cached,
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# "eager" which looks up the template in an in memory index. The "lazy"
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# version is designed for development where you want to automatically
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# find new templates between requests. The "eager" version is designed
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# for production mode and it is much faster but requires more time
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# upfront to build the file index.
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def [](path)
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if loaded?
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@paths[path]
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else
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Dir.glob("#{@path}/#{path}*").each do |file|
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template = create_template(file)
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if path == template.path_without_extension || path == template.path
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return template
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end
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end
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nil
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end
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end
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def loaded?
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@loaded ? true : false
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end
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def load
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reload! unless loaded?
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self
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end
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# Rebuild load path directory cache
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def reload!
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@paths = {}
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templates_in_path do |template|
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template.freeze
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@paths[template.path] = template
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@paths[template.path_without_extension] ||= template
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end
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@paths.freeze
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@loaded = true
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end
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private
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def templates_in_path
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(Dir.glob("#{@path}/**/*/**") | Dir.glob("#{@path}/**")).each do |file|
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yield create_template(file) unless File.directory?(file)
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end
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end
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def create_template(file)
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Template.new(file.split("#{self}/").last, self)
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end
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end
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def load
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each { |path| path.load }
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end
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def reload!
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each { |path| path.reload! }
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end
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def [](template_path)
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each do |path|
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if template = path[template_path]
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return template
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end
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end
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nil
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end
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def find_template(path, *formats)
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if formats && formats.first == :all
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formats = Mime::EXTENSION_LOOKUP.values.map(&:to_sym)
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end
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formats.each do |format|
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if template = self["#{path}.#{format}"]
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return template
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end
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end
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if template = self[path]
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return template
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end
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nil
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end
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end
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end
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