Rakefile in rubygems-update-1.6.2 vs Rakefile in rubygems-update-1.7.0

@@ -169,5 +169,81 @@
   rflags << "-i" << "lib/rubygems"
 
   ruby "#{flags.join ' '} #{rcov} #{rflags.join ' '} #{args[:test]}"
 end
 
+def changelog_section code
+  name = {
+    :major   => "major enhancement",
+    :minor   => "minor enhancement",
+    :bug     => "bug fix",
+    :unknown => "unknown",
+  }[code]
+
+  changes = $changes[code]
+  count = changes.size
+  name += "s" if count > 1
+  name.sub!(/fixs/, 'fixes')
+
+  return if count < 1
+
+  puts "* #{count} #{name}:"
+  puts
+  changes.sort.each do |line|
+    puts "  * #{line}"
+  end
+  puts
+end
+
+desc "Print the current changelog."
+task "git:newchangelog" do
+  # This must be in here until rubygems depends on the version of hoe that has
+  # git_tags
+  # TODO: get this code back into hoe-git
+  module Hoe::Git
+    module_function :git_tags, :git_svn?, :git_release_tag_prefix
+  end
+
+  tags  = Hoe::Git.git_tags
+  tag   = ENV["FROM"] || tags.last
+  range = [tag, "HEAD"].compact.join ".."
+  cmd   = "git log #{range} '--format=tformat:%B|||%aN|||%aE|||'"
+  now   = Time.new.strftime "%Y-%m-%d"
+
+  changes = `#{cmd}`.split(/\|\|\|/).each_slice(3).map do |msg, author, email|
+    msg.split(/\n/).reject { |s| s.empty? }
+  end
+
+  changes = changes.flatten
+
+  next if changes.empty?
+
+  $changes = Hash.new { |h,k| h[k] = [] }
+
+  codes = {
+    "!" => :major,
+    "+" => :minor,
+    "*" => :minor,
+    "-" => :bug,
+    "?" => :unknown,
+  }
+
+  codes_re = Regexp.escape codes.keys.join
+
+  changes.each do |change|
+    if change =~ /^\s*([#{codes_re}])\s*(.*)/ then
+      code, line = codes[$1], $2
+    else
+      code, line = codes["?"], change.chomp
+    end
+
+    $changes[code] << line
+  end
+
+  puts "=== #{ENV['VERSION'] || 'NEXT'} / #{now}"
+  puts
+  changelog_section :major
+  changelog_section :minor
+  changelog_section :bug
+  changelog_section :unknown
+  puts
+end