Ruby Commit Count for RubyKaigi 2014

commit-count-_total-rk14.md

Ruby Commit Count Since v2_0_0_0

...until the latest release on each branche (trunk, ruby_2_0, ruby_1_9_3)

  *  1: nobu        1870 # 100% discount(free as free-beer)
  *  2: akr          716 # |
  *  3: nagachika    488 # |
  *  4: svn          449 # |
  *  5: ko1          423 # |
  *  6: naruse       339 # |
  *  7: zzak         290 # |
  *  8: usa          276 # |
  *  9: kazu         149 # |
  * 10: drbrain      114 # 100% discount(free as free-beer)
  * 11: glass         95 # 50% discount
  * 12: knu           89 # |
  * 13: hsbt          82 # |
  * 14: tmm1          80 # |
  * 15: charliesome   75 # |
  * 16: kou           72 # |
  * 17: kosaki        60 # |
  * 18: a_matsuda     49 # |
  * 19: marcandre     49 # |
  * 20: ktsj          47 # |
  * 21: mrkn          45 # |
  * 22: tarui         45 # |
  * 23: eregon        43 # |
  * 24: normal        39 # |
  * 25: tenderlove    31 # |
  * 26: xibbar        28 # |
  * 27: nari          27 # |
  * 28: shugo         24 # |
  * 29: tadf          20 # 50% discount
  * 30: sorah         15 # 25% discount
  * 31: ayumin        14 # |
  * 32: shirosaki     14 # |
  * 33: nagai         11 # |
  * 34: ngoto         10 # |
  * 35: mame           9 # |
  * 36: emboss         8 # |
  * 37: yugui          8 # |
  * 38: headius        7 # |
  * 39: jeg2           5 # |
  * 40: kouji          5 # |
  * 41: ryan           4 # |
  * 42: duerst         3 # |
  * 43: kanemoto       3 # |
  * 44: takano32       3 # |
  * 45: eban           2 # |
  * 46: luislavena     2 # |
  * 47: matz           2 # |
  * 48: suke           2 # |
  * 49: arton          1 # |
  * 50: shyouhei       1 # 25% discount

commit-count-branch-rk14.md

trunk (r39474:45877)

• 1: nobu 1865
• 2: akr 716
• 3: svn 438
• 4: ko1 423
• 5: naruse 339
• 6: zzak 289
• 7: kazu 149
• 8: drbrain 114
• 9: usa 103
• 10: glass 95
• 11: knu 89
• 12: hsbt 82
• 13: tmm1 80
• 14: charliesome 75
• 15: kou 72
• 16: kosaki 60
• 17: a_matsuda 49
• 18: marcandre 49
• 19: ktsj 47
• 20: mrkn 45
• 21: tarui 45
• 22: eregon 43
• 23: normal 39
• 24: tenderlove 31
• 25: xibbar 28
• 26: nari 27
• 27: shugo 24
• 28: tadf 20
• 29: nagachika 19
• 30: sorah 15
• 31: ayumin 14
• 32: shirosaki 14
• 33: ngoto 10
• 34: mame 9
• 35: nagai 9
• 36: emboss 8
• 37: yugui 8
• 38: headius 7
• 39: jeg2 5
• 40: kouji 5
• 41: ryan 4
• 42: duerst 3
• 43: kanemoto 3
• 44: takano32 3
• 45: eban 2
• 46: luislavena 2
• 47: matz 2
• 48: suke 2
• 49: arton 1
• 50: shyouhei 1

ruby_2_0_0 (r39474:45883)

• 1: nagachika 469
• 2: usa 15
• 3: svn 7
• 4: nobu 2
• 5: nagai 1
• 6: zzak 1

ruby_1_9_3 (r39474:45962)

• 1: usa 158
• 2: svn 4
• 3: nobu 3
• 4: nagai 1

commit-count.rb

require 'open3'
require 'nokogiri'

SINCE_REV = 39474
LATEST_REL_REVS = {
  trunk: 45877,
  ruby_2_0_0: 45883,
  ruby_1_9_3: 45962
}
SVN_URL_BASE = 'http://svn.ruby-lang.org/repos/ruby'

def svn_log(branch)
  branches = 'branches' unless branch == :trunk
  svn_url = [SVN_URL_BASE, branches, branch].compact.join('/')
  rev_between = "#{SINCE_REV}:#{LATEST_REL_REVS[branch]}"
  Open3.capture2("svn log --xml -r#{rev_between} #{svn_url}")[0]
end

# [[author, count], [author, count], ...]
COUNT_DESC_NAME_ASC = ->(a, b) { (c = b[1] <=> a[1]) == 0 ? a[0] <=> b[0] : c }

def authors_count(log_xml)
  authors = Nokogiri(log_xml).search('logentry > author').map(&:text)
  authors.each_with_object(Hash.new(0)){|author, count|
    count[author] += 1 }.to_a.sort(&COUNT_DESC_NAME_ASC)
end

def fetch_svn_log_xml(branch)
  fname = "svn-log-#{branch}.xml"
  if File.exist?(fname)
    File.read(fname)
  else
    log_xml = svn_log(branch)
    log_xml.tap{|s| File.write(fname, s) }
  end
end

# {:branch => [[author,count], ...], :branch => [...]}
commits = LATEST_REL_REVS.keys.each_with_object({}) do |branch, c|
  xml = fetch_svn_log_xml(branch)
  c[branch] = authors_count(xml)
end

# [[author, count], [author, count], ...]
total = commits.each_with_object(Hash.new(0)) do |(_branch, commits), sum|
  commits.each do |author, count|
    sum[author] += count
  end
end.sort(&COUNT_DESC_NAME_ASC)

RANK_MAX_LENGTH = total.size.to_s.size
NAME_MAX_LENGTH = total.map{|c| c[0].size}.max
COUNT_MAX_LENGTH = total.map{|c| c[1].to_s.size}.max

def _rank(r); "%#{RANK_MAX_LENGTH}d" % r end
def _author(a); "%-#{NAME_MAX_LENGTH}s" % a end
def _count(c); "%#{COUNT_MAX_LENGTH}d" % c end
def _between(b)
  return "" if b == :total
  "(r" << [SINCE_REV, LATEST_REL_REVS[b]].join(':') << ")"
end

output = commits.to_a.unshift([:total, total])
output.each do |(branch, count)|
  puts "#### #{branch} #{_between(branch)}"
  print "\n"
  count.each.with_index(1) do |(a, c), idx|
    puts "  * #{_rank(idx)}: #{_author(a)} #{_count(c)}"
  end
  print "\n"
end