module GitLogToJson

# File lib/git_log_to_json.rb, line 22
def self.print_json(dir, option)
  Dir.chdir(dir) do
    format_opts = ['%H', '%an', '%ad', '%s']
    format = format_opts.join('%x0b') + '%x07'
    cmd_base = 'git log '
    cmd_opts = ''
    if option[:number]
      cmd_opts += "-n #{option[:number]} "
    end
    cmd_opts += "--pretty=format:\"#{format}\""
    cmd = cmd_base + cmd_opts
    git_log = `#{cmd}`
    ary = []
    keys = [:hash, :author_name, :author_date, :subject]
    git_log.split("\a").each do |line|
      h = {}
      values = line.split("\v")
      values[0].gsub!(/\n/, '')
      raise Exception.new('size error') if values.size != 4
      begin
        tr  = [keys, values].transpose
        h = Hash[*tr.flatten]
        ary.push(h)
      rescue => e
        puts e
      end
    end
    puts ary.to_json
  end
end

# File lib/git_log_to_json.rb, line 18
def self.version
  puts GitLogToJson::VERSION
end