代码行数统计

一、rake stats

 

运行rake stats，这将会得到类似以下的输出：

 

+----------------------+-------+-------+---------+---------+-----+-------+
| Name                 | Lines |   LOC | Classes | Methods | M/C | LOC/M |
+----------------------+-------+-------+---------+---------+-----+-------+
| Controllers          |    81 |    55 |       3 |      11 |   3 |     3 |
| Helpers              |    19 |    18 |       0 |       1 |   0 |    16 |
| Models               |    17 |    12 |       2 |       0 |   0 |     0 |
| Libraries            |     0 |     0 |       0 |       0 |   0 |     0 |
| Integration tests    |     0 |     0 |       0 |       0 |   0 |     0 |
| Functional tests     |    85 |    72 |       3 |       7 |   2 |     8 |
| Unit tests           |   168 |   144 |       2 |      18 |   9 |     6 |
+----------------------+-------+-------+---------+---------+-----+-------+
| Total                |   370 |   301 |      10 |      37 |   3 |     6 |
+----------------------+-------+-------+---------+---------+-----+-------+
  Code LOC: 85     Test LOC: 216     Code to Test Ratio: 1:2.5

 

二、rake lines

 

到项目路径下执行rake lines即可。

 

task :lines => :environment do
  CheckLines.new(Rails.root.to_s + "/app/controllers")
end

module Enumerable
  def total_lines
    lines = 0
    each_with_index {|_, lines|}
    return lines + 1
  end
end

class CheckLines
  require 'find'

  CheckType = %w{txt rb rhtml erb yml html css xml js}.freeze

  def initialize(directory)
    @total_lines = 0
    if File.directory?(directory)
      @directory = directory
      @contents = {}
      @content_type = {}
      CheckType.each {|ext| @content_type[ext.to_sym] = 0}
      self.go
    else
      puts "#{directory} is not a directory!" and return
    end
  end

  def go
    if @directory
      Find.find @directory do |path|
        pathlite = path.gsub(@directory, '')
        if File.file?(path) && is_check_file(path)
          File.open path do |f|
            tmp_line = f.total_lines
            @contents.store(pathlite, tmp_line)
            @content_type[(path.sub(/.*\./, '').to_sym)] += tmp_line
            @total_lines += tmp_line
          end
        end
      end
      puts "Total Code Lines:#{@total_lines}"
      puts "Total Files #{@contents.keys.size}"
      @content_type.each_pair {|key,value| puts "#{key} : #{value}"}
      details
    end
  end

  def is_check_file file_name
    CheckType.any? do |ext|
      !file_name.scan(/\.#{ext}$/).empty?
    end
  end

  def details
    @contents.each do |key,value|
      puts "#{key} file has lines of #{value}"
    end
  end
end

 

输出如下：

 

Total Code Lines:81
Total Files 3
rb : 81
/application.rb file has lines of 14
/entry_comments_controller.rb file has lines of 26
/entries_controller.rb file has lines of 41