Sha256: 4dd66b326721f8b9d3cc91a37398154aa948fffb6671be45c0f36d4010602abf
Contents?: true
Size: 894 Bytes
Versions: 15
Compression:
Stored size: 894 Bytes
Contents
require 'fileutils'
module Sanford
class PIDFile
attr_reader :path
def initialize(path)
@path = (path || '/dev/null').to_s
end
def pid
pid = File.read(@path).strip
pid && !pid.empty? ? pid.to_i : raise('no pid in file')
rescue StandardError => exception
error = InvalidError.new("A PID couldn't be read from #{@path.inspect}")
error.set_backtrace(exception.backtrace)
raise error
end
def write
FileUtils.mkdir_p(File.dirname(@path))
File.open(@path, 'w'){ |f| f.puts ::Process.pid }
rescue StandardError => exception
error = InvalidError.new("Can't write pid to file #{@path.inspect}")
error.set_backtrace(exception.backtrace)
raise error
end
def remove
FileUtils.rm_f(@path)
end
def to_s
@path
end
InvalidError = Class.new(RuntimeError)
end
end
Version data entries
15 entries across 15 versions & 1 rubygems