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Contents
module Climatic
module ConfigLayers
class ProjectLayer < SuperStack::Layer
attr_reader :started_from_directory, :project_file_basename
def initialize(file_or_directory, project_file_basename=nil)
if Dir.exists? file_or_directory
raise 'You have to provide the basename of the project file !' if project_file_basename.nil?
@started_from_directory = File.expand_path file_or_directory
self.project_file_basename = project_file_basename
else
raise "Invalid project file '#{file_or_directory}' !" unless File.readable? file_or_directory
normalized = File.expand_path file_or_directory
@started_from_directory = File.dirname normalized
self.project_file_basename = File.basename normalized
end
end
def file_name
@file_name ||= find_root_file project_file_basename, started_from_directory
end
def project_root
File.dirname file_name
end
def project_file_basename=(file)
@file_name = nil
@project_file_basename = file
end
private
def find_root_file(file_basename, initial_directory)
prev_dir = nil
cur_dir = initial_directory
found_file = nil
file_basename = file_basename.to_s
raise Climatic::Error, "Invalid directory '#{initial_directory}'" unless File.readable? initial_directory
while found_file.nil? and cur_dir != prev_dir
candidate_file = File.join cur_dir, file_basename
if File.readable? candidate_file
found_file = candidate_file
end
prev_dir = cur_dir
cur_dir = File.expand_path '..', cur_dir
end
raise Climatic::Error, "Cannot find any root file named '#{file_basename}' starting from '#{initial_directory}'." if found_file.nil?
found_file
end
end
end
end
Version data entries
14 entries across 14 versions & 1 rubygems