brynary

2010 Modularity Olympics

This is a contest, open to programming languages from all nations, to write modular and extensible code to solve the following problem: Implement a service that can run queries on a database.

The Challenge

Sounds simple right? Wrong! A programmer without control over the source-code of that service must be able to later add enhancements such as statistics collecting, timeouts, memoization, and so forth. There are a few more requirements:

1. the “enhancements” must be specified in a configuration object which is consumed at run-time (e.g., it could be based on user-input).
2. The enhancements are ordered (stats collecting wraps timeouts, not the other way around) but it must be possible to reverse the order of the enhancements at run-time.
3. The enhancements must be “surgical” and not “global”. That is, it must be possible to simultaneously have two query services, one reversed and one not reversed, and even have a query service without any enhancements.

brynary

FROM ubuntu
MAINTAINER Code Climate <ops@codeclimate.com>

RUN echo "deb http://archive.ubuntu.com/ubuntu precise main universe" > /etc/apt/sources.list
RUN apt-get update
RUN apt-get upgrade -y

RUN apt-get install -y curl libssl-dev libssl0.9.8 autoconf build-essential

RUN mkdir -p /app/vendor/ruby-1.9.3 && cd /app/vendor/ruby-1.9.3 && curl "https://s3.amazonaws.com/heroku-buildpack-ruby/ruby-1.9.3.tgz" -s -o - | tar zxf -

brynary

class FooController < ApplicationController
  before_filter :api_authenticate

  # ...
  def api_authenticate
    authenticate_or_request_with_http_basic do |username, password|
      username == "foo" && password == "bar"
    end
  end
end

brynary

class ActiveUserPolicy
  LOGIN_PERIOD = 14.days
  
  class Query
    def initialize(relation = User.scoped)
      @relation = relation
    end

    def find_each(&block)
      @relation.

brynary

$ git ls-remote git://github.com/floere/picky.git
fatal: remote error: access denied or repository not exported: /d/nw/d8/cc/43/828623/828623.git

brynary

    def in_module(name, file, line, last_line)
      if Sexp === name then
        name = case name.first
               when :colon2 then
                 name = name.flatten
                 name.delete :const
                 name.delete :colon2
                 name.join("::")
               when :colon3 then
                 name.last.to_s

brynary

def assert_select(*args, &block)
  # Start with optional element followed by mandatory selector.
  arg = args.shift
  @selected ||= nil

  if arg.is_a?(HTML::Node)
    # First argument is a node (tag or text, but also HTML root),
    # so we know what we're selecting from.
    root = arg
    arg = args.shift

brynary

Using Exceptions to manage control flow in Rails Controllers

This is an example from the blog post: http://www.ngauthier.com/2011/09/using-exceptions-to-manage-control-flow.html.

Please fork it and show me what you would do!

brynary

    %h4 Utility Account Summary
    %table.data-table
      = @user_metrics.utility_accounts_summary.each_count do |name, count|
        %tr
          %th= name
          %td= count

brynary

4: CC vm/llvm/jit.cpp
virtual memory exhausted: Cannot allocate memory
virtual memory exhausted: Cannot allocate memory
virtual memory exhausted: Cannot allocate memory
rake aborted!
Error compiling

(See full trace by running task with --trace)
Error: gcc -Ivm -Ivm/test/cxxtest -I.  -pipe -Wall -fno-omit-frame-pointer -ggdb3 -Werror -DRBX_PROFILER -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS  -O2 -DHAS_EXECINFO -DHAS_READLINE -DNDEBUG -D_GNU_SOURCE -fomit-frame-pointer -fPIC -Ivm/external_libs/llvm/include -DENABLE_LLVM -Ivm/external_libs/udis86 -Ivm/external_libs/libffi/include -Ivm/external_libs/libgdtoa -Ivm/external_libs/onig -Ivm/external_libs/libtommath -I/usr/local/include -I/opt/local/include  -c -o vm/llvm/artifacts/jit.cpp.o vm/llvm/jit.cpp