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require "pathname"
require "fileutils"
require "digest/md5"
require "tmpdir"
require "spring/version"
require "spring/sid"
require "spring/configuration"
module Spring
IGNORE_SIGNALS = %w(INT QUIT)
STOP_TIMEOUT = 2 # seconds
class Env
attr_reader :log_file
def initialize(options = {})
@root = options[:root]
@project_root = options[:root]
@log_file = options[:log_file] || File.open(ENV["SPRING_LOG"] || File::NULL, "a")
end
def root
@root ||= Spring.application_root_path
end
def project_root
@project_root ||= Spring.project_root_path
end
def version
Spring::VERSION
end
def tmp_path
path = Pathname.new(
ENV["SPRING_TMP_PATH"] ||
File.join(ENV['XDG_RUNTIME_DIR'] || Dir.tmpdir, "spring-#{Process.uid}")
)
FileUtils.mkdir_p(path) unless path.exist?
path
end
def application_id
ENV["SPRING_APPLICATION_ID"] || Digest::MD5.hexdigest(RUBY_VERSION + project_root.to_s)
end
def socket_path
Pathname.new(ENV["SPRING_SOCKET"] || tmp_path.join(application_id))
end
def socket_name
socket_path.to_s
end
def pidfile_path
Pathname.new(ENV["SPRING_PIDFILE"] || socket_path.dirname.join("#{socket_path.basename(".*")}.pid"))
end
def pid
pidfile_path.exist? ? pidfile_path.read.to_i : nil
rescue Errno::ENOENT
# This can happen if the pidfile is removed after we check it
# exists
end
def app_name
root.basename
end
def server_running?
pidfile = pidfile_path.open('r+')
!pidfile.flock(File::LOCK_EX | File::LOCK_NB)
rescue Errno::ENOENT
false
ensure
if pidfile
pidfile.flock(File::LOCK_UN)
pidfile.close
end
end
def log(message)
log_file.puts "[#{Time.now}] [#{Process.pid}] #{message}"
log_file.flush
end
def stop
if server_running?
timeout = Time.now + STOP_TIMEOUT
kill 'TERM'
sleep 0.1 until !server_running? || Time.now >= timeout
if server_running?
kill 'KILL'
:killed
else
:stopped
end
else
:not_running
end
end
def kill(sig)
pid = self.pid
Process.kill(sig, pid) if pid
rescue Errno::ESRCH
# already dead
end
def server_command
ENV["SPRING_SERVER_COMMAND"] || "#{File.expand_path("../../../bin/spring", __FILE__)} server --background"
end
end
end
|
