如何计算代码行数？

Question

我试过rake stats但这似乎很不准确。也许它忽略了几个目录？

Answer 1

您可以尝试这两种选择：

1. Hack rake stats

Rakestats从博文片段：

namespace :spec do 
    desc "Add files that DHH doesn't consider to be 'code' to stats" 
    task :statsetup do 
    require 'code_statistics' 

    class CodeStatistics 
    alias calculate_statistics_orig calculate_statistics 
    def calculate_statistics 
     @pairs.inject({}) do |stats, pair| 
     if 3 == pair.size 
      stats[pair.first] = calculate_directory_statistics(pair[1], pair[2]); stats 
     else 
      stats[pair.first] = calculate_directory_statistics(pair.last); stats 
     end 
     end 
    end 
    end 
    ::STATS_DIRECTORIES << ['Views', 'app/views', /\.(rhtml|erb|rb)$/] 
    ::STATS_DIRECTORIES << ['Test Fixtures', 'test/fixtures', /\.yml$/] 
    ::STATS_DIRECTORIES << ['Email Fixtures', 'test/fixtures', /\.txt$/] 
    # note, I renamed all my rails-generated email fixtures to add .txt 
    ::STATS_DIRECTORIES << ['Static HTML', 'public', /\.html$/] 
    ::STATS_DIRECTORIES << ['Static CSS', 'public', /\.css$/] 
    # ::STATS_DIRECTORIES << ['Static JS', 'public', /\.js$/] 
    # prototype is ~5384 LOC all by itself - very hard to filter out 

    ::CodeStatistics::TEST_TYPES << "Test Fixtures" 
    ::CodeStatistics::TEST_TYPES << "Email Fixtures" 
    end 
end 
task :stats => "spec:statsetup" 

metric_fu - 甲红宝石用于Easy Metric报告生成的Gem

PS：我还没有尝试过上述任何一种，但metric_fu听起来很有趣，请参阅输出的屏幕截图。

Answer 2

这是一个简单的解决方案。它统计了您的rails项目的应用程序文件夹中的代码行--CSS，Ruby，CoffeeScript和全部。在项目的根目录下，运行以下命令：

find ./app -type f | xargs cat | wc -l 

Answer 3

我使用免费的Perl脚本cloc。示例用法：

phrogz$ cloc . 
    180 text files. 
    180 unique files.           
     77 files ignored. 

http://cloc.sourceforge.net v 1.56 T=1.0 s (104.0 files/s, 19619.0 lines/s) 
------------------------------------------------------------------------------- 
Language      files   blank  comment   code 
------------------------------------------------------------------------------- 
Javascript      29   1774   1338   10456 
Ruby       61   577   185   4055 
CSS        10   118   133   783 
HTML        1    13    3   140 
DOS Batch      2    6    0    19 
Bourne Shell      1    4    0    15 
------------------------------------------------------------------------------- 
SUM:       104   2492   1659   15468 
------------------------------------------------------------------------------- 

Answer 4

这一个计算文件的数量，代码的总行数，注释和每个文件的平均LOC。它也排除名称中包含“vendor”的目录中的文件。

用法：

count_lines('rb') 

代码：

def count_lines(ext) 

    o = 0 # Number of files 
    n = 0 # Number of lines of code 
    m = 0 # Number of lines of comments 

    files = Dir.glob('./**/*.' + ext) 

    files.each do |f| 
    next if f.index('vendor') 
    next if FileTest.directory?(f) 
    o += 1 
    i = 0 
    File.new(f).each_line do |line| 
     if line.strip[0] == '#' 
     m += 1 
     next 
     end 
     i += 1 
    end 
    n += i 
    end 

    puts "#{o.to_s} files." 
    puts "#{n.to_s} lines of code." 
    puts "#{(n.to_f/o.to_f).round(2)} LOC/file." 
    puts "#{m.to_s} lines of comments." 

end