Class: LX::File::Class

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

Instance Method Summary collapse

Constructor Details

#initialize(clss) ⇒ Class

Returns a new instance of Class.



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# File 'lib/lx.rb', line 455

def initialize(clss)
end

Instance Method Details

#atomic_write(path_final, content) ⇒ Object

Atomically writes content to the given path. Does so by creating a temp file, writing to it, then renaming the temp file to the final destination.



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# File 'lib/lx.rb', line 460

def atomic_write(path_final, content)
	begin
		path_tmp = path_final + '.' + rand.to_s.sub(/\A.*\./mu, '')
		File.write path_tmp, content
		File.rename path_tmp, path_final
	ensure
		if File.exist?(path_tmp)
			File.delete path_tmp
		end
	end
end

#temp_path(opts = {}) ⇒ Object

Creates a temporary path. Does not create a file. If, after the do block, a file exists at that path, that file is deleted.



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# File 'lib/lx.rb', line 474

def temp_path(opts = {})
	opts = {'delete'=>true}.merge(opts)
	
	# root
	if opts['root']
		root = opts['root'].sub(/\/*\z/mu, '/')
	else
		root = './'
	end
	
	# full path
	path = root + LX.randstr
	
	# add extension
	if opts['ext']
		ext = opts['ext']
		ext = ext.sub(/\A\.*/mu, '.')
		path += ext
	end
	
	if block_given?
		begin
			yield path
		ensure
			if opts['delete'] and File.exist?(path)
				File.delete path
			end
		end
	else
		return path
	end
end