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Contents
################################################################################
#
# Author: Zachary Patten <zachary@jovelabs.net>
# Copyright: Copyright (c) Zachary Patten
# License: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
################################################################################
module ZTK
# ZTK::Locator Error Class
#
# @author Zachary Patten <zachary@jovelabs.net>
class LocatorError < Error; end
# @author Zachary Patten <zachary@jovelabs.net>
class Locator
class << self
# Locate a file or directory
#
# Attempts to locate the file or directory supplied, starting with
# the current working directory and crawling it up looking for a match
# at each step of the way.
#
# @param [String,Array<String>] args A string or array of strings to
# attempt to locate.
#
# @return [String] The expanded path to the located entry.
def find(*args)
pwd = Dir.pwd.split(File::SEPARATOR)
(pwd.length - 1).downto(0) do |i|
candidate = File.expand_path(File.join(pwd[0..i], args))
return candidate if File.exists?(candidate)
end
raise LocatorError, "Could not locate '#{File.join(args)}'!"
end
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems