Finding code to hurt
After listening to Ryan Davis' inspiring talk, "Hurting Code for Fun & Profit" at GoRuCo today, I wrote this rake task to figure out what code to hurt. It looks though your git log, and takes the 15 .rb files in your Rails' app/ directory and runs them through flog, so you can see which are the most complicated.
RUBY:
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namespace :analyze do
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namespace :commits do
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desc 'Flog the most commonly revised files in the git history'
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task :most_changed_files do
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counts = Hash.new(0)
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IO.popen("PAGER=cat git log --name-only --pretty=oneline 2>&1") do |pipe|
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while (!pipe.eof) do
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line = pipe.readline
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next unless line =~ /^(app|lib).*\.rb$/
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counts[line.chomp] += 1
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end
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end
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counts.sort_by{|item| item.last}.reverse.first(15).each do |item|
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flog_score = `flog -s #{item.first}`.to_f.round
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puts "#{item.first} (in #{item.last} commits) (Flog: #{flog_score})"
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end
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end
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end
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end
Install it with sake from here.
UPDATE: If you're interested in watching Ryan's stellar talk, it will be up on Confreaks soon, or you can try the RubyConf edition of the talk.
posted 4:32 pm
