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- #!/usr/bin/env ruby
- #
- # The committer_count.rb is a way to tell who's been active over the last
- # given period. It's of course, quite coarse -- someone with 10 commits in a day
- # may or may not be more productive than someone with 3, but over long enough
- # periods, it's an okay metric to measure involvement with the project, since
- # large and small commits will tend to average out.
- #
- # Note that this includes merge commits by default (which usually means at least
- # code review happened, so it's still a measure of work). You can get different
- # stats by ignoring merge commits, once option parsing is implemented.
- #
- # Usage: ./committer_count.rb 2011-01-01 | head -10 # Since a particular date
- # ./committer_count.rb 1y | head -10 # Last year
- # ./committer_count.rb 6m | head -10 # Last six months
- # ./committer_count.rb 12w | head -10 # Last twelve weeks
- # ./committer_count.rb 100d | head -10 # Last hundred days
- #
- #
- # History with colors and e-mail addresses (respecting .mailmap):
- # git log --pretty=format:"%C(white)%ad %C(yellow)%h %Cblue'%aN' <%aE> %Cgreen%f%Creset" --date=short
- #
- require 'time'
- class GitLogLine < Struct.new(:date, :hash, :author, :message)
- end
- @history = `git log --pretty=format:"%ad %h '%aN' %f" --date=short --date-order`
- @recent_history = []
- @commits_by_author = {}
- def parse_date(date)
- case date
- when /([0-9]+)y(ear)?s?/
- seconds = $1.to_i* (60*60*24*365.25)
- calc_date = (Time.now - seconds).strftime("%Y-%m-%d")
- when /([0-9]+)m(onth)?s?/
- seconds = $1.to_i* (60*60*24*(365.25 / 12))
- calc_date = (Time.now - seconds).strftime("%Y-%m-%d")
- when /([0-9]+)w(eek)?s?/
- seconds = $1.to_i* (60*60*24*7)
- calc_date = (Time.now - seconds).strftime("%Y-%m-%d")
- when /([0-9]+)d(ay)?s?/
- seconds = $1.to_i* (60*60*24)
- calc_date = (Time.now - seconds).strftime("%Y-%m-%d")
- else
- calc_date = Time.parse(date).strftime("%Y-%m-%d")
- end
- end
- date = ARGV[0] || "2005-03-22" # A day before the first SVN commit.
- calc_date = parse_date(date)
- @history.each_line do |line|
- parsed_line = line.match(/^([^\s+]+)\s(.{7,})\s'(.*)'\s(.*)[\r\n]*$/)
- next unless parsed_line
- break if calc_date == parsed_line[1]
- @recent_history << GitLogLine.new(*parsed_line[1,4])
- end
- @recent_history.each do |logline|
- @commits_by_author[logline.author] ||= []
- @commits_by_author[logline.author] << logline.message
- end
- puts "Commits since #{calc_date}"
- puts "-" * 50
- @commits_by_author.sort_by {|k,v| v.size}.reverse.each do |k,v|
- puts "%-25s %3d" % [k,v.size]
- end
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