Module: Gadfly

Defined in:
lib/gadfly.rb

Defined Under Namespace

Modules: Helpers

Constant Summary collapse

INIT_DIR = 
'/etc/init'

Class Method Summary collapse

Class Method Details

.install_upstart_script(script_name) ⇒ Object 



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# File 'lib/gadfly.rb', line 10

def self.install_upstart_script(script_name)
  script_name = script_name.gsub('.rb', '')

  raise('script not found') unless File.exists?("#{script_name}.rb")
  raise('upstart not installed') unless Helpers.command?('start') && Helpers.command?('stop')

  start_script = <<-eos
#!/bin/bash

set -u
set -e

INIT_RBENV='export PATH=$PATH:$HOME/.rbenv/bin; eval "$(rbenv init -)"'

CMD="$INIT_RBENV; cd '#{Dir.pwd}'; bundle exec ruby #{script_name}.rb"

su - #{ENV['USER']} -c "$CMD";
  eos

  conf = <<-eos
description "#{script_name}"

start on (local-filesystems and net-device-up IFACE=eth0)
stop on runlevel [016]

console log
exec #{Dir.pwd}/start_script
  eos

  `bundle`

  File.open('start_script', 'w') { |f| f.write(start_script) }
  `chmod +x start_script`

  File.open("#{script_name}.conf", 'w') { |f| f.write(conf) }

  [ 'mkdir -p /var/log/upstart',
    "mv #{script_name}.conf #{INIT_DIR}",
    "chown root:root #{INIT_DIR}/#{script_name}.conf",
    "stop #{script_name}",
    "start #{script_name}",
  ].each { |c| system "sudo #{c}" }
end