NilsHaldenwang

#!/usr/bin/env ruby
# -*- encoding: UTF-8 -*-

changed_files = insertions = deletions = 0

cmd = nil
default_log_cmd = 'git log --since="00:00:01am" --stat -- .'
complete_log_cmd = 'git log --pretty=medium --stat -- .'

unless ARGV[0]

NilsHaldenwang

  \chapter*{Erklärung}

  \thispagestyle{empty}

  Ich versichere, dass ich die eingereichte Bachelor-Arbeit selbstständig und ohne
  unerlaubte Hilfe verfasst habe. Anderer als der von mir angegebenen Hilfsmittel und
  Schriften habe ich mich nicht bedient. Alle wörtlich oder sinngemäß den Schriften
  anderer Autoren entnommenen Stellen habe ich kenntlich gemacht.
  
  \bigskip\bigskip

NilsHaldenwang

  LectureInstanceParticipation::ROLES.keys.each do |role|
    define_method(role.pluralize) do
      participants_with_role(role.to_sym)
    end
  end

NilsHaldenwang

Lecture(#56834100) expected, got Lecture(#30902240) (ActiveRecord::AssociationTypeMismatch)
      /home/nils/.rvm/gems/ruby-1.9.2-p290-patched@ba/gems/activerecord-3.1.0/lib/active_record/associations/association.rb:205:in `raise_on_type_mismatch'
      /home/nils/.rvm/gems/ruby-1.9.2-p290-patched@ba/gems/activerecord-3.1.0/lib/active_record/associations/belongs_to_association.rb:6:in `replace'
      /home/nils/.rvm/gems/ruby-1.9.2-p290-patched@ba/gems/activerecord-3.1.0/lib/active_record/associations/singular_association.rb:17:in `writer'
      /home/nils/.rvm/gems/ruby-1.9.2-p290-patched@ba/gems/activerecord-3.1.0/lib/active_record/associations/builder/association.rb:49:in `block in define_writers'
      /home/nils/.rvm/gems/ruby-1.9.2-p290-patched@ba/gems/factory_girl-2.1.0/lib/factory_girl/proxy/build.rb:21:in `set'
      /home/nils/.rvm/gems/ruby-1.9.2-p290-patched@ba/gems/factory_girl-2.1.0/lib/factory_girl/factory.rb:112:in `block (2 levels) in run'
      /home/nils/.rvm/gems/ruby-1.9.2-p290-patched@ba

NilsHaldenwang

Rehearsal -------------------------------------------
sort     12.040000   0.030000  12.070000 ( 12.116498)
sort_by   0.440000   0.000000   0.440000 (  0.438764)
--------------------------------- total: 12.510000sec

              user     system      total        real
sort     10.020000   0.030000  10.050000 ( 10.054058)
sort_by   0.410000   0.000000   0.410000 (  0.416572)

NilsHaldenwang

#!/usr/bin/env ruby

changed_files = insertions = deletions = 0

lines = `git log --since="0am" --stat` 
lines.each_line do |line|
  if line =~ /(\d+) files changed, (\d+) insertions\(\+\), (\d+) deletions\(-\)/   
    changed_files += $1.to_i
    insertions    += $2.to_i
    deletions     += $3.to_i

NilsHaldenwang

m = Matrix.new([[1,2], [3,4]])

NameError: no constructor with arguments matching [class org.jruby.RubyArray] on object #<Java::OrgApacheCommonsMathLinear::Array2DRowRealMatrix:0x0>
	from (irb):28:in `evaluate'
	from org/jruby/RubyKernel.java:1088:in `eval'
	from /home/nils/.rvm/rubies/jruby-1.6.1/lib/ruby/1.8/irb.rb:158:in `eval_input'
	from /home/nils/.rvm/rubies/jruby-1.6.1/lib/ruby/1.8/irb.rb:271:in `signal_status'
	from /home/nils/.rvm/rubies/jruby-1.6.1/lib/ruby/1.8/irb.rb:270:in `signal_status'
	from /home/nils/.rvm/rubies/jruby-1.6.1/lib/ruby/1.8/irb.rb:155:in `eval_input'
	from org/jruby/RubyKernel.java:1418:in `loop'

NilsHaldenwang

# taken from http://rosettacode.org/wiki/Knapsack_problem/0-1#Brute_force
class Array
  # do something for each element of the array's power set
  def power_set
    yield [] if block_given?
    self.inject([[]]) do |ps, elem|
      r = []
      ps.each do |i|
        r << i
        new_subset = i + [elem]

NilsHaldenwang

class Test
  def some_method
    puts "hello world"
  end

  def some_other_method
    puts "something else"
  end
end

NilsHaldenwang

This is another gist-test.