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counter_reducer = -> (state, action) {
  state ||= 0

  case action[:type]
  when 'increment'
    state += 1
  when 'decrement'
    state -= 1
  else
    state

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WITH table_scans as (
    SELECT relid,
        tables.idx_scan + tables.seq_scan as all_scans,
        ( tables.n_tup_ins + tables.n_tup_upd + tables.n_tup_del ) as writes,
                pg_relation_size(relid) as table_size
        FROM pg_stat_user_tables as tables
),
all_writes as (
    SELECT sum(writes) as total_writes
    FROM table_scans

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Using Git

Global Settings

Related Setup: https://gist.github.com/hofmannsven/6814278

Related Pro Tips: https://ochronus.com/git-tips-from-the-trenches/

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#!/usr/bin/env ruby
# http://guides.rubyonrails.org/v3.2.8/rails_on_rack.html
require 'rack'
require 'rails/all'

# Defaults are defined in railties/lib/rails/application/default_middleware_stack.rb
class Application < Rails::Application
  routes.draw do
    root to: Proc.new { [200, {'Content-Type' => 'text/html'}, ["Hello from app"]] }
  end

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#!/usr/bin/env ruby
require 'rails'

# App definition
class Application < Rails::Application
end

# Different application with directly defined routes that we can route to as well
class DifferentApplication < Rails::Application
  routes.draw do

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#!/usr/bin/env ruby
# Extracted from traceroute gem + checking the presence of views as well

require_relative './config/environment.rb'

class Traceroute
  def initialize(app)
    @app = app
  end

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#!/usr/bin/env ruby
require 'rubydns'

INTERFACES = [
    [:udp, "0.0.0.0", 53],
    [:tcp, "0.0.0.0", 53]
]
Name = Resolv::DNS::Name
IN = Resolv::DNS::Resource::IN

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# From Rakefile, expects :build task

task :clean do
  `rm -rf pkg`
end

# Compare latest release with current git head
require 'rubygems/comparator'
task compare: [:clean, :build] do
  git_version = VagrantPlugins::Registration::VERSION

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#!/usr/bin/ruby
# Check what kind of spec data are saved in http://rubygems.org/Marshal.4.8.Z
require 'rubygems'
require 'pp'

# wget http://rubygems.org/Marshal.4.8.Z if needed
gems = Marshal.load(Gem.inflate(File.read("./Marshal.4.8.Z")))

SPEC_PARAMS = %w[ author authors name platform require_paths rubygems_version summary
                  license licenses bindir cert_chain description email executables

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From 3ee81e3239f4408c38f57b35344dbd424e7eab1d Mon Sep 17 00:00:00 2001
From: Josef Stribny <[email protected]>
Date: Thu, 24 Oct 2013 14:48:46 +0200
Subject: [PATCH] Fix: Rename searchindex.rhtml file

---
 lib/rdoc/generator/template/sdoc/search_index.rhtml | 8 ++++++++
 lib/rdoc/generator/template/sdoc/searchindex.rhtml  | 8 --------
 2 files changed, 8 insertions(+), 8 deletions(-)
 create mode 100644 lib/rdoc/generator/template/sdoc/search_index.rhtml