github_bug_summary_per_milestone.rb

require 'logger'

require 'github_api'
require 'active_support/core_ext/object'

class IssueApi

  attr_accessor :org, :repo
  attr_reader :logger
  def initialize
    @org  = ENV["GITHUB_DEFAULT_ORGANIZATION"]
    @repo = ENV["GITHUB_DEFAULT_REPOGITORY"]
    @logger = Logger.new($stdout)
  end
  
  def impl
    @impl ||= Github::Client::Issues.new(:oauth_token => ENV['GITHUB_OAUTH_TOKEN'])
  end

  def issues(options = {})
    impl.list({state: "all", filter: "all", org: org}.update(options))
  end

  def each_issue(options = {}, &block)
    options[:page] = 1
    begin
      results = issues(options)
      results.each(&block)
      options[:page] += 1
      logger.debug(" results.length: #{results.length}")
    end until results.length == 0
  end

end

api = IssueApi.new
result = {}
api.each_issue(labels: "bug") do |i|
  ms = i.milestone.try(:title) || "none"
  result[ms] ||= {}
  i.labels.each do |label|
    result[ms][label.name] ||= 0
    result[ms][label.name] += 1
  end
end; nil
result


milestones = %w[beta6 trdb-riak beta7 GA]
labels = milestones.map{|ms| result[ms].keys}.flatten.uniq.sort - ["bug"]
labels.unshift("bug")

fmt = "%#{labels.map(&:length).max}s " << milestones.map{|ms| "%#{ms.length}s" }.join(" ")

lines = []
lines << fmt % (["label"] + milestones)

labels.each do |label|
  values = [label]
  milestones.each{|ms| values << (result[ms][label] || '-').to_s}
  lines << (fmt % values)
end

puts lines