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<script
  type="text/javascript"
  src="https://www.ethicalbooksearch.com/widget.js">
</script>
<script type="text/javascript">
  EBSWidget.setUp("/editions/9781509880829", "your-domain-name");
</script> 

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<div id="ethical-book-search-container">
  <noscript>
    <p>
      Find a responsible bookseller for the book you want to buy with
      <a href="https://www.ethicalbooksearch.com/?source=your-domain-here">Ethical Book Search</a>.
    </p>
  </noscript>
</div>

<script

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LOCAL_DUMP=./tmp/local-dump.sql
APP_CONTAINER_NAME=prepfortests_app

all: build run create_databases load_data test smoke_test

./config/database.yml:
	@echo "---> Create database config symlink"
	ln -s database.example.yml ./config/database.yml

build: ./config/database.yml

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Build a game with Scratch

Joel Chippindale / CTO, FutureLearn / @joelchippindale

A workshop from BarCamp London X

1. Visit http://projects.codeclub.org.uk/en-GB/index.html
2. Pick a Scratch project and download the student project PDF
3. Visit http://scratch.mit.edu/
4. Sign up/in

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Notes from "Improve your git"

Joel Chippindale / CTO, FutureLearn / @joelchippindale

A tutorial from BarCamp London X

We talked about using git commits to tell a story about your code and two things that helped

1. Commit messages

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# A pure Ruby implementation of curry for Proc objects.
#
# For example
#
#     >> f = Proc.new { |x, y| x**y }
#     => #<Proc:0x007fb662016c18@(eval):1>
#     >> curry(f).call(5).call(3)
#     => 125
#
def curry(p)

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FutureLearn talk: Reducing risk with continuous deployment

12:00-12:45 on Tue 2nd Sep at the FutureLearn offices, The British Library, 96 Euston Road, London

In this lunchtime talk Joel Chippindale (CTO, FutureLearn) will outline what continuous deployment is and how it can reduce risk in your software development project.

It should be useful to those who are not sure what continuous deployment is, or who know what it is but would like to more clearly understand or articulate it's benefits.

This talk is free to attend but please drop an email to so that we can get an idea of numbers and also give you more details about how to get to our offices.

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class BWT
  def encode(string)
    rotations("#{string}$").sort.map{ |s| s.slice(-1, 1) }.join
  end

  def decode(encoded_string)
    encoded_string.chars.inject([]) do |strings|
      encoded_string.chars.zip(strings).map(&:join).sort
    end.detect { |s| s.slice(-1, 1) == '$' }[0..-2]
  end

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$ bundle install --path ~/tmp/bundle && find ~/tmp/bundle/ruby/2.0.0/gems -name "*.rb" -print0 | xargs -0 -I file cat file | wc -l
   1155178
$ find . -name "*.rb" -print0 | xargs -0 -I file cat file | wc -l
   62654
$ irb
>> (1155178.0 / (1155178 + 62654) * 100).round.to_s + "% of ruby code in this project is in rails and other gems"
=> "95% of ruby code in this project is in rails and other gems"

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MIT/GNU Scheme running under OS X
Type `^C' (control-C) followed by `H' to obtain information about interrupts.

Copyright (C) 2014 Massachusetts Institute of Technology
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Image saved on Friday May 23, 2014 at 5:50:11 PM
  Release 9.2 || Microcode 15.3 || Runtime 15.7 || SF 4.41 || LIAR/C 4.118 || Edwin 3.116
  
1 ]=> (or (quote a) (quote b))