Class: SearchPath

Inherits:
Object
  • Object
show all
Defined in:
lib/dbc/searchpath.rb

Overview

Copyright © 2004 Charles M Mills This document is licenced under The MIT Licence. THIS SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND. See included LICENCE file.

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ SearchPath

Returns a new instance of SearchPath.



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# File 'lib/dbc/searchpath.rb', line 12

def initialize
	@paths = []
end

Class Method Details

.check(p) ⇒ Object 



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# File 'lib/dbc/searchpath.rb', line 7

def SearchPath.check(p)
	if !File.exists?(p) or !File.directory?(p)
		raise "invalid search path: #{p}"
	end
end

Instance Method Details

#<<(path) ⇒ Object 



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# File 'lib/dbc/searchpath.rb', line 23

def <<(path)
	self.add(path)
end

#add(path, check = true) ⇒ Object 



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# File 'lib/dbc/searchpath.rb', line 15

def add(path, check=true)
	SearchPath.check(path)
	@paths << path
end

#check ⇒ Object 



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# File 'lib/dbc/searchpath.rb', line 27

def check
	@paths.each do |p|
		SearchPath.check(p)
	end
end

#find(file) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/dbc/searchpath.rb', line 32

def find(file)
	dir = @paths.find do |inc_dir|
		File.exists?(File.join(inc_dir, file))
	end
	raise ArgumentError, "'#{file}' not found" unless dir
	File.join(dir, file)
end

#unshift(path) ⇒ Object 



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# File 'lib/dbc/searchpath.rb', line 19

def unshift(path)
	SearchPath.check(path)
	@paths.unshift(path)
end