albertosaurus

#!/bin/bash

locate --null "*lib/modules/$(uname -r)*" | xargs -r0 sh -c 'for i do [ -d "$i" ] && printf "%s\n" "$i"; done' sh {} + | grep -v "^/lib/modules/$(uname -r)/kernel\|^/lib/modules/$(uname -r)$\|^/lib/modules/$(uname -r)/build$\|^/lib/modules/$(uname -r)/initrd$" | xargs ls

albertosaurus

# Pretty much all consumer lenses suffer from focus breathing at close distances, i.e the focal length changes.
# This lets us calculate the max focal length of a given lens at minimum focusing distance.
#
# Example 1: Nikon 70-200 f2.8 VR II - minimum focusing distance is 1.4m, max reproduction ratio is 0.12x.
#
#   compute_focal_length 1400, 0.12
#   => 133.92857142857142
#
# So at close distances, the Nikon isn't a 200mm lens, it's more like 135mm.
#

albertosaurus

module WithTransaction
  extend ActiveSupport::Concern

  module ClassMethods

    # Wrap the given method in a transaction.
    def with_transaction(method_name)

      define_method "#{method_name}_with_transaction" do |*args, &block|

albertosaurus

~$ export JRUBY_OPTS=--1.9; gem install json --debug -V
GET http://rubygems.org/latest_specs.4.8.gz
302 Found
GET http://production.s3.rubygems.org/latest_specs.4.8.gz
304 Not Modified
Installing gem json-1.5.3-java
ERROR:  While executing gem ... (ArgumentError)
    wrong number of arguments (2 for 1)
        /home/arthur/bin/jruby/lib/ruby/site_ruby/1.8/rubygems/package/tar_input.rb:57:in `initialize'
        /home/arthur/bin/jruby/lib/ruby/site_ruby/1.8/rubygems/package/tar_reader.rb:64:in `each'

albertosaurus

~$ gem env
RubyGems Environment:
  - RUBYGEMS VERSION: 1.8.8
  - RUBY VERSION: 1.9.2 (2011-07-07 patchlevel 136) [java]
  - INSTALLATION DIRECTORY: /home/arthur/bin/jruby-1.6.3/lib/ruby/gems/1.9
  - RUBY EXECUTABLE: /home/arthur/bin/jruby/bin/jruby
  - EXECUTABLE DIRECTORY: /home/arthur/bin/jruby/bin
  - RUBYGEMS PLATFORMS:
    - ruby
    - universal-java-1.6