Class: TConsole::Runner

Inherits:
Object
  • Object
show all
Defined in:
lib/tconsole/runner.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(argv = []) ⇒ Runner

Public: Sets up the new runner’s config.



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# File 'lib/tconsole/runner.rb', line 7

def initialize(argv = [])
  # try to load the default configs
  Config.load_config(File.join(Dir.home, ".tconsole"))
  Config.load_config(File.join(Dir.pwd, ".tconsole"))
  self.config = Config.configure(argv)
  self.reporter = Reporter.new(config)
end

Instance Attribute Details

#config ⇒ Object

Returns the value of attribute config.



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# File 'lib/tconsole/runner.rb', line 4

def config
  @config
end

#console ⇒ Object

Returns the value of attribute console.



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# File 'lib/tconsole/runner.rb', line 4

def console
  @console
end

#reporter ⇒ Object

Returns the value of attribute reporter.



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# File 'lib/tconsole/runner.rb', line 4

def reporter
  @reporter
end

#stty_save ⇒ Object

Returns the value of attribute stty_save.



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# File 'lib/tconsole/runner.rb', line 4

def stty_save
  @stty_save
end

Instance Method Details

#cleanup_process ⇒ Object

Internal: Cleans up the process at the end of execution.



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# File 'lib/tconsole/runner.rb', line 44

def cleanup_process
  reporter.exit_message
  system("stty", self.stty_save);
end

#console_run_loop(console) ⇒ Object

Internal: Environment reload run loop.

This run loop handles spawning a new tconsole environment - it’s basically just there to handle reloads. Also calls out to the input loop for the console.

Returns false if tconsole needs to stop, true otherwise.



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# File 'lib/tconsole/runner.rb', line 70

def console_run_loop(console)
  pipe_server = ChattyProc::PipeServer.new

  reporter.trace("Forking test server.")
  server_pid = fork do
    server_run_loop(pipe_server)
  end

  pipe_server.caller!
  unless load_environment(pipe_server)
    pipe_server.write({:action => "exit"})
    return false
  end

  continue = console.read_and_execute(pipe_server)
  reporter.trace("Console read loop returned - continue: #{continue}")

  Process.waitall

  continue
end

#load_environment(pipe_server) ⇒ Object

Internal: Asks the server to load the environment.

Returns true if the environment was loaded, or false otherwise.



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# File 'lib/tconsole/runner.rb', line 95

def load_environment(pipe_server)
  reporter.trace("Attempting to load environment.")
  pipe_server.write({:action => "load_environment"})

  if pipe_server.read
    reporter.trace("Environment loaded successfully.")
    true
  else
    reporter.error("Couldn't load the test environment. Exiting.")
    false
  end
end

#prepare_process ⇒ Object

Internal: Set up the process and console.



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# File 'lib/tconsole/runner.rb', line 36

def prepare_process
  self.stty_save = `stty -g`.chomp

  trap("SIGINT", "IGNORE")
  trap("SIGTSTP", "IGNORE")
end

#print_config_errors ⇒ Object

Internal: Prints config errors, if there are any.

Returns true if there were errors, false otherwise.



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# File 'lib/tconsole/runner.rb', line 52

def print_config_errors
  config_errors = @config.validation_errors
  if config_errors.length > 0
    reporter.error
    reporter.error(config_errors.first)
    true
  else
    false
  end
end

#run ⇒ Object

Spawns a new environment. Looks at the results of the environment to determine whether to stop or keep running



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# File 'lib/tconsole/runner.rb', line 17

def run
  prepare_process
  reporter.welcome_message
  exit(1) if print_config_errors

  # Set up our console input handling and history
  console = Console.new(config, reporter)

  # Start the server
  while console_run_loop(console)
    # just need to run the loop
  end

  console.store_history

  cleanup_process
end

#server_run_loop(pipe_server) ⇒ Object

Internal: Run loop for the server.



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# File 'lib/tconsole/runner.rb', line 109

def server_run_loop(pipe_server)
  pipe_server.callee!
  server = Server.new(config, reporter)

  while message = pipe_server.read
    reporter.trace("Server Received Message: #{message[:action]}")
    begin
      result = server.handle(message)
      pipe_server.write(result)
    rescue => e
      reporter.error
      reporter.error("An error occured: #{e.message}")
      reporter.trace_backtrace(e)
      pipe_server.write(nil)
    end
  end
end