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tag: v3.0.0.beta1
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require 'set'
module Rails
module Paths
module PathParent
def method_missing(id, *args)
name = id.to_s
if name =~ /^(.*)=$/ || args.any?
@children[$1 || name] = Path.new(@root, *args)
elsif path = @children[name]
path
else
super
end
end
end
class Root
include PathParent
attr_accessor :path
def initialize(path)
raise if path.is_a?(Array)
@children = {}
@path = path
@root = self
@all_paths = []
end
def all_paths
@all_paths.uniq!
@all_paths
end
def load_once
filter { |path| path.paths if path.load_once? }
end
def eager_load
filter { |path| path.paths if path.eager_load? }
end
def load_paths
filter { |path| path.paths if path.load_path? }
end
def push(*)
raise "Application root can only have one physical path"
end
alias unshift push
alias << push
alias concat push
protected
def filter(&block)
all_paths.map(&block).compact.flatten.uniq.select { |p| File.exists?(p) }
end
end
class Path
include PathParent, Enumerable
attr_reader :path
attr_accessor :glob
def initialize(root, *paths)
@options = paths.last.is_a?(::Hash) ? paths.pop : {}
@children = {}
@root = root
@paths = paths.flatten
@glob = @options.delete(:glob)
@load_once = @options[:load_once]
@eager_load = @options[:eager_load]
@load_path = @options[:load_path] || @eager_load || @load_once
@root.all_paths << self
end
def each
to_a.each { |p| yield p }
end
def push(path)
@paths.push path
end
alias << push
def unshift(path)
@paths.unshift path
end
def concat(paths)
@paths.concat paths
end
def load_once!
@load_once = true
@load_path = true
end
def load_once?
@load_once
end
def eager_load!
@eager_load = true
@load_path = true
end
def eager_load?
@eager_load
end
def load_path!
@load_path = true
end
def load_path?
@load_path
end
def paths
raise "You need to set a path root" unless @root.path
result = @paths.map do |p|
path = File.expand_path(p, @root.path)
@glob ? Dir[File.join(path, @glob)] : path
end
result.flatten!
result.uniq!
result
end
alias to_a paths
end
end
end
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