module Listen::Thread
Public Class Methods
new(name, &block)
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Creates a new thread with the given name. Any exceptions raised by the thread will be logged with the thread name and complete backtrace. rubocop:disable Style/MultilineBlockChain
# File lib/listen/thread.rb, line 13 def new(name, &block) thread_name = "listen-#{name}" caller_stack = caller ::Thread.new do rescue_and_log(thread_name, caller_stack: caller_stack, &block) end.tap do |thread| thread.name = thread_name end end
rescue_and_log(method_name, *args, caller_stack: nil) { |*args| ... }
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rubocop:enable Style/MultilineBlockChain
# File lib/listen/thread.rb, line 25 def rescue_and_log(method_name, *args, caller_stack: nil) yield(*args) rescue => exception _log_exception(exception, method_name, caller_stack: caller_stack) end
Private Class Methods
_exception_with_causes(exception)
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# File lib/listen/thread.rb, line 43 def _exception_with_causes(exception) result = +"#{exception.class}: #{exception}" if exception.cause result << "\n" result << "--- Caused by: ---\n" result << _exception_with_causes(exception.cause) end result end
_log_exception(exception, thread_name, caller_stack: nil)
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# File lib/listen/thread.rb, line 33 def _log_exception(exception, thread_name, caller_stack: nil) complete_backtrace = if caller_stack [*exception.backtrace, "--- Thread.new ---", *caller_stack] else exception.backtrace end message = "Exception rescued in #{thread_name}:\n#{_exception_with_causes(exception)}\n#{complete_backtrace * "\n"}" Listen.logger.error(message) end