teamon

Kill sbt forked jvm

Thu, 09 Feb 2012 21:39:56 +0100

Recently I’ve been playing with akka under sbt. I often run sbt console and then use run command to execute my app. It works great for single threaded applications that exits by itself. When using akka, there are couple of threads that do not quit. Hitting ctrl+c quits running application AND unfortunately also sbt. I figured out, that it can be fixed with a little bit of hacking.

First, set fork in run := true is build.sbt. Then you can stop forked jam with the following shell line:

I’d suggest making it an alias or even better save as Shell Extension available via hotkey using awesome alfred app.

Performance comparision of NeoDatis and PostgreSQL

Sat, 07 Jan 2012 19:04:00 +0100

Neodatis_vs_PostgreSQL.pdf

Hash extension - no more hash.try(:[], key)

Wed, 26 Oct 2011 09:57:12 +0200

pow + nginx configuration

Thu, 28 Jul 2011 21:13:43 +0200

Total git cleanup

Wed, 27 Jul 2011 19:40:48 +0200

coffee-script compiler plugin for sbt (works with liftweb)

Mon, 30 May 2011 21:04:00 +0200

coffee-script compiler plugin for sbt (works with liftweb)

Neodatis OdbConfiguration printout

Wed, 04 May 2011 22:25:21 +0200

In case I might need this again…

Setting up Intel Cluster Compiler with XCode 4

Mon, 18 Apr 2011 22:10:35 +0200

I just spent an hour fighting with dump Intel license server (for trial version). I’m to angry to write, so here is the solution.

The easy part

Download Composer XE for Mac from Intel website, run .dmg, click .pkg, click, click, blah, select XCode integration, click, done.

It will install everything under /opt/intel and … under /Developer/ (no, symlinks, separate install - well, wtf?)

To use icc from command line it is required to run

first.

If you use zsh, then you’ll have to modify /opt/intel/bin/iccvars.sh file and change all “==” to “=” .

Now icc should work from command line. Btw, better add this “source …” line to you .bashrc/.zshrc or you’ll end up typing that command on every new shell.

The “how to make people frustrated” part

Run XCode, choose new c++ project. In project setting select correct compiler:

You can try to hit cmd+b and pray it will work. I’m not that lucky.

It doesn’t work without executing this dump “source” line. I tried to setup build phases, pre-actions and… nothing worked. So, here is the hacky way to make it work.

then open new icc file in editor and put there:

Do the same with icpc.

Now license server shit will be loaded when xcode executes /Developer/usr/bin/icc

But, that’s not everything yet. /Developer/usr/lib is missing some libraries. Just copy what needed from /opt/intel/lib (I needed libimf.a, but it may vary).

After all that hacks it *should* work…

Rails: timeline_fu and workflow integration

Mon, 18 Apr 2011 16:41:42 +0200

Quick tip on how to integrate timeline_fu and workflow callbacks.

Simple scala benchmark utility

Wed, 09 Mar 2011 00:02:48 +0100

Very, very simple. Strongly influenced by Ruby’s Benchmark

Usage …

.. and the result

Scala specs cheatsheet

Mon, 31 Jan 2011 17:52:00 +0100

Based on MatchersGuide

rawler: Crawl your website and find broken links with Ruby

Tue, 25 Jan 2011 11:06:21 +0100

rawler: Crawl your website and find broken links with Ruby:

thechangelog:

Need a quick-and-dirty way to find broken links on your web site? Rawler from Oscar Del Ben is a Ruby gem that gives you a command line tool to crawl your site, looking for errors.

Install via Rubygems:
gem install rawler
For usage, just execute the command rawler --help:
~ » rawler --help                                                                ~ 255 ↵ 
Rawler is a command line utility for parsing links on a website

Usage:
      rawler http://example.com [options]

where [options] are:
  --username, -u :   HTT Basic Username
  --password, -p :   HTT Basic Password
       --version, -v:   Print version and exit
          --help, -h:   Show this message
Point Rawler to your URL and you’ll get a list of followed links and their HTTP status codes:

~ » rawler http://thechangelog.com ~ 130 ↵ 301 - http://thechangelog.com/episodes 200 - http://thechangelog.com/archive 200 - http://thechangelog.com/ 200 - https://chrome.google.com/extensions/detail/oiaejidbmkiecgbjeifoejpgmdaleoha 301 - http://github.com 200 - http://stylebot.me 200 - http://twitter.com/stylebot 200 - http://thechangelog.com/tagged/css 200 - https://github.com/handlino/CompassApp ...

The roadmap includes:

Follow redirects, but still inform about them

Respect robots.txt

Export to html

If you want to help out, fork the project and contribute.

[Source on GitHub]

akka singleton actor

Mon, 24 Jan 2011 21:27:00 +0100

If you ever want to do something like this:

DON’T! NEVER. Even in tests or something, doesn’t matter, never!

Using singleton actor object + scala-specs = silen fail with message “null” and one big WTF.

akka actors cheatsheet

Sat, 22 Jan 2011 21:49:30 +0100

Small cheatsheet for great akka library

Scala: Combine several Partial Functions into one

Sat, 22 Jan 2011 00:35:54 +0100

Good old C-style for loop in scala

Fri, 21 Jan 2011 22:03:21 +0100

Handle exceptions inside Actor

Sun, 16 Jan 2011 18:55:23 +0100

and then

Decompile scala

Sun, 16 Jan 2011 16:12:16 +0100

Scala collections #collect

Fri, 14 Jan 2011 17:52:00 +0100

Disk image converter

Sun, 28 Nov 2010 17:43:30 +0100
Disk image converter