Tags
android apache awstats beans clearcase clearquest dev dreamhost dvb eclipse ffmpeg gradle htaccess html http java javascript jni licensing linux mac macfuse mpeg mysql mythtv network networking openoffice php random root ruby samba scripting soap spring sshfs ssh linux sudoers requiretty touch tr ubuntu vpn vsftp WOL xmltv
Tag Archives: ruby
CSS spriting using RMagick
I wanted to give CSS spriting a go – i.e. one large image montage and then using background-position to ‘see-through’ to the correct image. The best off the shelf solution looks like SmartSprites but this requires you annotate your CSS … Continue reading
Rails, active record, concurrency and scaling
Coming from a Java background I’m confused by ruby’s poor support for concurrency The problem… I’m rewriting weathersupermarket, a screen scraper for weather forecasts using Rails. This is the basic logic of server forecast service. user requests forecast for location … Continue reading
AJAX contact form with Ruby CGI backend
In 2013 I vowed never to write a line of PHP again, it’s dirty and bad for your CV. When it came to implementing a basic AJAX form for a small campaign website I decided to use my new friend … Continue reading
Ruby – latitude/longitude from start point, bearing and distance
class CoordinatesCalc def CoordinatesCalc.offset_coordinate(lat_deg, lon_deg, distance_m, bearing_deg) r = 6371000.0; lat = lat_deg * Math::PI / 180 lon = lon_deg * Math::PI / 180 bearing = bearing_deg * Math::PI / 180 distance_by_r = distance_m / r lat2 = Math.asin( Math.sin(lat) … Continue reading
Rails 4.0.0 with Ruby 2.0 on a Dreamhost shared server
Build ruby from source. RVM won’t work out of the box because it tries to use sudo. It’s quite easy. cd mkdir build cd build http://cache.ruby-lang.org/pub/ruby/2.0/ruby-2.0.0-p247.tar.gz tar xzf ruby-2.0.0-p247.tar.gz cd ruby-2.0.0-p247 ./configure –prefix /home/adamish/ruby # <=== make sure you install … Continue reading
