tov’s Blog

Yes, I know… Nobody does use IPMI any more… There are so many better solutions.

And yes: You are like me: You are stuck to IPMI due to various reasons but do not want to install a Windows VM for this crap?

Here’s my solution (you need to know how to use the Terminal.app):

• Download IPMIView for Linux from SuperMicro (yeah, Google’s your friend… Thomas Krenn actually also provides a download link
• Unzip/Tar it to a folder of your choice (IPMI_TAR_DIRECTORY)
• brew install jenv (you have HomeBrew installed, don’t you?)
• mkdir -p ~/.jenv/versions (I have no idea why the homebrew script doesn’t do this, but…
• echo 'export PATH="$HOME/.jenv/bin:$PATH"' >> ~/.zshrc
• echo 'eval "$(jenv init -)"' >> ~/.zshrc (change both accordingly if you make use of bash. See jenv-Website for details)
• brew tap caskroom/versions; brew install java6
• open a new terminal window, to get the jenv-environment in place
• jenv add /Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
• cd IPMI_TAR_DIRECTORY
• jenv local 1.6 (that’s now part of your IPMI-Dir)
• cd ..; cd - (just to re-enter the directory)
• java -jar IPMIView20.jar
• have fun!

I have also installed an Automator-script (just a new workflow that performs a shell script) and saved it as an application. I moved this application into my Dock and now I’m happy.
If you also want to change Automator’s script icon, I recommend the small app Image2Icon (Mac App Store).

I was in need of a logging mechanism that prints all log messages with a “severity” that equals or is higher of “INFO” to STDOUT (I’m using multilog for actual logging stuff).

As I wasn’t able to google a solution I came up with the following (not quite elaborated) code:

 

class OwnLogger < Logger

    include Severity
    SEV_LABEL = %w(DEBUG INFO WARN ERROR FATAL ANY)

    def add(severity, message = nil, progname = nil, &block)
      time = Time.now
      if ENV['LOG_FROM_INFO_TO_STDOUT']
        if severity >= INFO
          msg = "#{$$}:#{SEV_LABEL[severity]}:" + time.strftime("%Y-%m-%dT%H:%M:%S.") << "%06d " % time.usec + ":"
          if message.nil?
            if block_given?
              message = yield
            else
              message = progname
              progname = @progname

            end
            msg += message.to_s
            puts msg
          end
        end
        super
      end

    end

So if you put the following lines in your /config/application.rb you’ll get what I got 🙂

config.logger = OwnLogger.new(File.dirname(__FILE__) + "/../log/#{ENV['PROCNAME']}#{Rails.env}.log")

AND (most important) you’ll still have the “normal” logfile containing all messages

Argh…
This f…ine error message above has been thrown during a

records = Model.find(:first).

Guess why:

I made use of a legacy table that contained the attribute „type“. I just had to add a

self.inheritance_column=’itype’

into my model and now everything’s OK.

Rails: Do you consider this as friendly error messages?