how to enable colorization via yml file?

[litebito]

hi,

I'm a beginner in ruby and I've following question. I was using log4r, but wanted de console output to be colorized, so I checked out this project. but I don't seem to be able to get it working properly

I've my basic config for log4r(-color) in "log4r_config.yml" and it looks like this :

log4r_config:

define all loggers ...

the standard logging levels here can be overridden from the app calling the logger

loggers:

• name : production level : INFO trace : 'false' outputters :
  • fileoutputprod
  • stdoutprod

• name : development level : DEBUG trace : 'true' outputters :

  • fileoutputdev
  • stdoutdev

  define all outputters (incl. formatters)

  outputters:

  • type: FileOutputter name: fileoutputprod filename: "/var/log/#{_logfile}.log" # will be replaced by value from calling script formatter: date_pattern: '%Y-%m-%d %H:%M:%S' pattern : '%d [%l]: %m ' type : PatternFormatter
  • type: FileOutputter name: fileoutputdev filename: "/var/log/dev_#{_logfile}.log" # will be replaced by value from calling script formatter: date_pattern: '%Y-%m-%d %H:%M:%S' pattern : '%d [%l]: (%t): %m ' # the development logger and stdout logger will show the linenr also type : PatternFormatter
  • type: StdoutOutputter name: stdoutprod formatter: date_pattern: '%Y-%m-%d %H:%M:%S' pattern : '%d [%l]: %m ' type : PatternFormatter
  • type: StdoutOutputter name: stdoutdev formatter: date_pattern: '%Y-%m-%d %H:%M:%S' pattern : '%d [%l]: (%t): %m ' type : PatternFormatter

how can I add colorization to the stdoutputter ?

in my script I've something like this :

log4r_config = Log4r::YamlConfigurator log4r_config["_logfile"] = File.basename(FILE, File.extname(FILE)) load_log4r = YAML.load_file("#{File.dirname(FILE)}/config/log4r_config.yml") YamlConfigurator.decode_yaml( load_log4r['log4r_config'] ) mylogger = Log4r::Logger[env] ## -->> logger is selected based on ruby environment

and I tried :

ColorOutputter.new 'color', {:colors => { :debug => :light_blue, :info => :light_blue, :warn => :yellow, :error => :red, :fatal => {:color => :red, :background => :white} } }

mylogger.add('color')

but that adds a 2nd line for each "log line" in de output

I would like to specify the colors in the yml file, is that possible? if not : update my defined logger so it is colorized, without doubling de lines

Thanks for any help

[kristianmandrup]

I created this gem by forking and patching a previous gem. I suggest you do the same. Fork it then clone your forked repo, then reference your clone from your Gemfile, using the :path attribute pointing to the location of your fork on your local disk. Then debug from there until it works the way you like. Cheers!

[litebito]

hmm that would be 1 step beyond my basic knowledge for now. So I guess I'll live without colors for now.

[kristianmandrup]

i think log4r-color was one of my first gems. At least it was for sure the first time I wanted to use a gem and I didn't work or didn't suit my purpose. Was a good exercise making it work...

Perhaps look at this for how to do the Yaml to hash:

http://stackoverflow.com/questions/800122/best-way-to-convert-strings-to-symbols-in-hash

Or use the hashie gem

https://github.com/intridea/hashie

The color outputter functionality resides here:

https://github.com/kristianmandrup/log4r-color/blob/master/lib/log4r-color/outputter/consoleoutputters.rb

  @out.print data.colorize(colors[key])
  @out.flush
  @out.print "".uncolorize

Also look at log4r-color/outputter/iooutputter which is the base outputter. Perhaps the bug is here? Could be related to ruby version??