Module: Lookout::Jruby

Defined in:
lib/lookout/jruby.rb,
lib/lookout/jruby/version.rb,
lib/lookout/jruby/cleanup_tempfiles_17.rb,
lib/lookout/jruby/cleanup_tempfiles_9k.rb,
lib/lookout/jruby/cleanup_tempfiles_common.rb

Constant Summary collapse

VERSION = 
"2.3.0"

Class Method Summary collapse

Class Method Details

.cleanup_tempfiles ⇒ Object

cleanup the jars copied to the temp directory when it gets added to the JRuby classloader. when killing jruby hard then those files remain there as the JVM does not clean them up.



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# File 'lib/lookout/jruby/cleanup_tempfiles_common.rb', line 9

def cleanup_tempfiles
  Dir[File.join(ENV_JAVA['java.io.tmpdir'], 'jruby-*')].each do |dir|
    pid = File.basename(dir)[6..-1]
    unless process_exists?(pid)
      # do not use fileutils here as we are in jruby-core
      Dir[File.join(dir, '*')].each do |file|
        File.delete(file) rescue warn "could not delete #{file}"
      end
      Dir.delete(dir) rescue warn "could not delete #{dir}"
    end
  end
end

.process_exists?(pid) ⇒ Boolean

stolen from process_exists gem github.com/wilsonsilva/process_exists/blob/master/lib/process_exists/core_ext/process.rb

Returns:

  • (Boolean) 


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# File 'lib/lookout/jruby/cleanup_tempfiles_9k.rb', line 7

def process_exists?(pid)
  system("kill -0 #{pid} 2> /dev/null")
rescue
  # i.e. windows
  false
end