git-history.rb

require 'rugged'
require 'time'
require 'active_support/all'

DATE_FORMAT  = "%-m/%-d/%Y"

puts "repo   = #{ARGV[0]}"
puts "branch = #{ARGV[1]}"
puts "email  = #{ARGV[2]}"
puts '=========================='
2.times { puts }

email  = ARGV[2].strip
repo   = Rugged::Repository.new(ARGV[0])
walker = Rugged::Walker.new(repo)
walker.sorting(Rugged::SORT_DATE)
walker.push("refs/heads/#{ARGV[1]}")

commit_counts = Hash.new(0)
walker.each do |commit|
  next unless commit.author[:email] == email
  d = commit.author[:time].to_date.strftime(DATE_FORMAT)
  commit_counts[d]+=1
end

prev_date = nil
prev_date_obj = nil
commits = []

walker.reset
walker.push("refs/heads/#{ARGV[1]}")
walker.each do |commit|
  next unless commit.author[:email] == email

  d = commit.author[:time].to_date.strftime(DATE_FORMAT)

  prev_date||=d
  prev_date_obj||=commit.author[:time].to_date

  if prev_date != commit.author[:time].to_date.strftime(DATE_FORMAT)
    commits << ""
    # Fill in the missing dates
    s = prev_date_obj - 1.day
    e = commit.author[:time].to_date

    # puts "s = #{s.inspect} -- #{e.inspect}"
    # puts "prev_date = #{prev_date}"
    # puts "author[:time] = #{commit.author[:time].strftime("%m/%d/%Y")}"
    while s > e
      unless [6, 0].include?(s.wday) # Skip Sat/Sunday
        commits << "Task\t--#{s.strftime("%A")}--\t#{s.strftime(DATE_FORMAT)}\t\t8:00:00"
        commits << ""
      end
      s = s - 1.day
    end
  end

  prev_date = d
  prev_date_obj = commit.author[:time].to_date

  t = 8 / commit_counts[d].to_i
  commits << "Task\t#{commit.message.strip}\t#{d}\t\t#{t}:00:00"
end

walker.reset

commits.reverse.each do |commit|
  puts commit
end