Module: Kernel

Defined in:
lib/jets/core_ext/kernel.rb

Overview

Works with jets/io.rb

Constant Summary collapse

@@io_buffer = 
[]

Instance Method Summary collapse

Instance Method Details

#io_buffer ⇒ Object

TODO: implement other methods that write output: p, print, printf, putc, puts, sprintf? Also, would be nice to figure out pp method also.



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# File 'lib/jets/core_ext/kernel.rb', line 15

def io_buffer
  @@io_buffer
end

#io_flush ⇒ Object

Note: Writing binary data to the log will crash the process with an error like this:

jets/lib/jets/core_ext/kernel.rb:20:in `write': "\x89" from ASCII-8BIT to UTF-8 (Encoding::UndefinedConversionError)

Rescue and discard it to keep the process alive.



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# File 'lib/jets/core_ext/kernel.rb', line 22

def io_flush
  chunk = @@io_buffer.join("\n")
  begin
    IO.write("/tmp/jets-output.log", chunk)
  # Writing to log with binary content will crash the process so rescuing it and writing an info message.
  rescue Encoding::UndefinedConversionError => e
    error_message = "Encoding::UndefinedConversionError: Binary data was written to Jets::IO buffer. Writing binary data to the log will crash the process, so discarding it.  This is an info message only. If you want to return binary data please base64 encode the data."
    IO.write("/tmp/jets-output.log", error_message)
  end
  @@io_buffer = []
end

#original_puts ⇒ Object 



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# File 'lib/jets/core_ext/kernel.rb', line 5

alias_method :original_puts, :puts

#puts(message) ⇒ Object 



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# File 'lib/jets/core_ext/kernel.rb', line 6

def puts(message)
  @@io_buffer << message
  original_puts(message)
end