metric_fu_git_history.rb

#!/usr/bin/env ruby
require 'date'
require 'rubygems'
begin
require 'metric_fu'
require 'reek'
require 'roodi'
rescue LoadError
  puts "Error loading gems. Try this: gem install metric_fu reek roodi"
  exit
end

ENV['CC_BUILD_ARTIFACTS']="tmp/metric_fu"

MetricFu::Configuration.run do |config|
  #define which metrics you want to use
  config.metrics  = [:flog, :flay, :roodi]
  config.graphs   = [:flog, :flay, :roodi]
  config.flay     = { :dirs_to_flay => ['app/controllers','app/helpers','app/models', 'lib'], :minimum_score => 10  } 
  config.flog     = { :dirs_to_flog => ['app', 'lib']  }
  config.roodi    = { :dirs_to_roodi => ['app', 'lib'] }
  config.graph_engine = :bluff
end

def metric_fu(time,commit_hash)
    %x{git checkout #{commit_hash}}
    MetricFu::Configuration.run {}
    MetricFu.metrics.each {|metric| MetricFu.report.add(metric) }
    MetricFu.report.save_output(MetricFu.report.to_yaml,
                                MetricFu.base_directory,
                                "report.yml")
    MetricFu.report.save_output(MetricFu.report.to_yaml,
                                MetricFu.data_directory,
                                "#{time.strftime("%Y%m%d")}.yml")
    MetricFu.report.save_templatized_report
    
end

commits = %x[git rev-list --branches master --since="4 weeks ago" --timestamp]
last_commits_by_date = {}

commits.each do |line|
  timestamp , commit_hash = line.split
  time = Time.at(timestamp.to_i)
  date = Date.parse(time.strftime('%Y/%m/%d'))
  unless last_commits_by_date.include?(date)
    last_commits_by_date[date] = commit_hash
  end
end

last_commits_by_date.keys.sort.each do |date|
  metric_fu(date,last_commits_by_date[date])
end

MetricFu.graphs.each {|graph| MetricFu.graph.add(graph, MetricFu.graph_engine) }
MetricFu.graph.generate