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Contents
require 'pathname'
module Codependency
class Path < Array
def initialize( extensions=%w| .rb | )
@extensions = Array(extensions)
end
attr_reader :extensions
##
# Appends a path to this path set. If the path exists, it
# will be expanded. Raises Errno::ENOENT if the path
# does not exist. Raises Errno::ENOTDIR if the path
# is not a directory.
def <<( str )
path = Pathname( str )
case
when !path.exist?
raise Errno::ENOENT, path.to_path
when !path.directory?
raise Errno::ENOTDIR, path.to_path
else
super path.expand_path
end
end
##
# Sugar syntax for calling #find if given a string.
# Otherwise, behaves like normal array access.
def []( path_or_index )
if path_or_index.is_a? String
find path_or_index
else
super
end
end
##
# Attempts to find the given file in this path set.
# Raises Errno::ENOENT if the file cannot be found.
def find( str )
super lambda { raise Errno::ENOENT, str } do |dir|
path = extensions.find do |ext|
file = dir.join str + ext
break file if file.exist?
end
break path if path
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems