Sha256: 4bdef9ef5e52bf5ab5d24117019b281571b1f5b158e390b02a78564e57aec66b
Contents?: true
Size: 1.69 KB
Versions: 24
Compression:
Stored size: 1.69 KB
Contents
require "fileutils"
module Lita
# Converts Lita to a daemon process.
# @deprecated Will be removed in Lita 5.0. Use your operating system's process manager instead.
class Daemon
# @param pid_path [String] The path to the PID file.
# @param log_path [String] The path to the log file.
# @param kill_existing [Boolean] Whether or not to kill existing processes.
def initialize(pid_path, log_path, kill_existing)
@pid_path = pid_path
@log_path = log_path
@kill_existing = kill_existing
end
# Converts Lita to a daemon process.
# @return [void]
def daemonize
handle_existing_process
Process.daemon(true)
File.open(@pid_path, "w") { |f| f.write(Process.pid) }
set_up_logs
at_exit { FileUtils.rm(@pid_path) if File.exist?(@pid_path) }
end
private
# Abort if Lita is already running.
def ensure_not_running
abort I18n.t("lita.daemon.pid_exists", path: @pid_path) if File.exist?(@pid_path)
end
# Call the appropriate method depending on kill mode.
def handle_existing_process
if @kill_existing && File.exist?(@pid_path)
kill_existing_process
else
ensure_not_running
end
end
# Try to kill an existing process.
def kill_existing_process
pid = File.read(@pid_path).to_s.strip.to_i
Process.kill("TERM", pid)
rescue Errno::ESRCH, RangeError, Errno::EPERM
abort I18n.t("lita.daemon.kill_failure", pid: pid)
end
# Redirect the standard streams to a log file.
def set_up_logs
log_file = File.new(@log_path, "a")
STDOUT.reopen(log_file)
STDERR.reopen(log_file)
STDERR.sync = STDOUT.sync = true
end
end
end
Version data entries
24 entries across 24 versions & 1 rubygems