henrik

#!/usr/bin/env ruby

# Updates dynamic DNS on Swedish LoopiaDNS.
# Run in crontab, e.g.:
# */15 * * * * ruby /usr/local/bin/update_loopia_dyndns.rb

USERNAME = "foo.com"
PASSWORD = "bar"
DOMAINS = %w[
  foo.com

henrik

# Generator for valid Swedish personnummer: http://en.wikipedia.org/wiki/Personal_identity_number_(Sweden)
# By Henrik Nyh <http://henrik.nyh.se> 2009-01-29 under the MIT license.

require 'date'

module Personnummer

  def self.generate(date=nil, serial=nil)
    date ||= Date.new(1900+rand(100), 1+rand(12), 1+rand(28))
    serial = serial ? serial.to_s : format("%03d", 1+rand(999))  # 001-999

henrik

Dezoomify

Ruby + ImageMagick script to stitch Zoomify Viewer tiles into a single image at the maximum zoom level.

Usage

Give the URL of a page that contains the Zoomify Flash viewer, e.g.:

./dezoomify.rb 'http://www.christies.com/lotfinder/ZoomImage.aspx?image=/LotFinderImages/D52792/D5279274'

henrik

#!/usr/bin/env ruby
#
# Calculate opacity for hexadecimal colors.
# By Henrik Nyh <http://henrik.nyh.se> 2009-02-10 under the MIT License.

module Hexcolor
  extend self

  def opacity(fg, opa=1.0, bg='FFFFFF')
    raise "Opacity must be between 0 and 1.0, but was #{opa}" unless (0..1.0).include?(opa)

henrik

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
  <key>Label</key>
  <string>name.henriknyh.znc</string>
  <key>Program</key>
  <string>/usr/local/bin/znc</string>
  <key>RunAtLoad</key>
  <true/>

henrik

# Install logrotate on OS X:
#   sudo port clean --all logrotate && sudo port install logrotate
# Add e.g. this to your crontab:
#   /opt/local/sbin/logrotate -s /Users/deploy/.logrotate/sites.status /Users/deploy/.logrotate/sites.conf
# This file would be sites.conf.
# See http://overstimulate.com/articles/logrotate-rails-passenger for more info.

daily
missingok
rotate 30

henrik

// jQuery checkbox utility plugin.
// Triggers "change" events on the checkboxes.
// By Henrik Nyh <http://henrik.nyh.se> 2009-04-27 under the MIT License.

(function($) {

  function makeChecked($checkboxes, checked) {
    return $checkboxes.prop("checked", checked).trigger("change");
  }

henrik

# Allow cancelling mails from within an ActionMailer deliver_* method by doing "raise NotSendingMail".
# In an ApplicationMailer that other mailers inherit from:

class NotSendingMail < StandardError; end
def self.method_missing(*args)
  super
rescue NotSendingMail => e
  Rails.logger.info("Not mailing! #{e}")
end

henrik

# Get "absolute unique visitors" for a given date range from Google Analytics.
# By Henrik Nyh <http://henrik.nyh.se> 2009-03-12. Public domain.

require 'rubygems'
require 'google/base'  # sudo gem install googlebase
require 'date'

FROM     = Date.today - 10
UNTO     = Date.today
SITE_ID  = '12345678'

henrik

# Rails template for Rails 2.3. Work in progress.
# By Henrik Nyh (http://henrik.nyh.se) 2009-03-29. Public domain.
# Usage: rails myapp -m http://gist.github.com/87341.txt

META_AUTHOR    = "Henrik Nyh (http://henrik.nyh.se)"
JQUERY_VERSION = "1.3.2"
APP_NAME       = File.basename(Dir.pwd)

git :init