discourse/script/demon_test/parent.rb

# frozen_string_literal: true

require File.expand_path("../../../config/environment", __FILE__)

puts "Parent is now loaded"

class ForkExecDemon < Demon::DemonBase
  def self.prefix
    "fork-exec-child"
  end

  def run
    if @pid = fork
      write_pid_file
      return
    end

    exec "./child #{parent_pid}"
  end
end

ForkExecDemon.start(1, verbose: true)

while true
  ForkExecDemon.ensure_running
  sleep 0.1
end
DEV: enable frozen string literal on all files This reduces chances of errors where consumers of strings mutate inputs and reduces memory usage of the app. Test suite passes now, but there may be some stuff left, so we will run a few sites on a branch prior to merging 2019-05-03 06:17:27 +08:00			`# frozen_string_literal: true`

demo script for demonizing using fork exec minor refinements to demon 2018-01-11 10:51:52 +08:00			`require File.expand_path("../../../config/environment", __FILE__)`

			`puts "Parent is now loaded"`

DEV: Upgrading Discourse to Zeitwerk (#8098) Zeitwerk simplifies working with dependencies in dev and makes it easier reloading class chains. We no longer need to use Rails "require_dependency" anywhere and instead can just use standard Ruby patterns to require files. This is a far reaching change and we expect some followups here. 2019-10-02 12:01:53 +08:00			`class ForkExecDemon < Demon::DemonBase`
demo script for demonizing using fork exec minor refinements to demon 2018-01-11 10:51:52 +08:00			`def self.prefix`
			`"fork-exec-child"`
			`end`

			`def run`
			`if @pid = fork`
			`write_pid_file`
			`return`
			`end`

			`exec "./child #{parent_pid}"`
			`end`
			`end`

			`ForkExecDemon.start(1, verbose: true)`

			`while true`
			`ForkExecDemon.ensure_running`
			`sleep 0.1`
			`end`