sloc

sloc is a simple tool to count SLOC (source lines of code)

sloc

Create stats of your source code:

physical lines
lines of code (source)
lines with comments
lines with single-line comments
lines with block comments
lines mixed up with source and comments
empty lines

Supported outputs

In addition to the default terminal output (see examples below), sloc provides an alternative set of output formatters:

CSV
JSON
Commandline table

Install

To use sloc as an application install it globally:

sudo npm install -g sloc

If you're going to use it as a Node.js module within your project:

npm install --save sloc

Browser

You can also use sloc within your browser application.

Link sloc.js in your HTML file:

<script src="lib/sloc.js"></script>

sloc is also available via bower:

bower install sloc

Note: You need to compile the coffee-script files yourself. If you want to use a precompiled bower package, you can run

bower install sloc-bower

Usage

CLI

sloc [option] <file>|<directory>

Options:

-h, --help                  output usage information
-V, --version               output the version number
-e, --exclude <regex>       regular expression to exclude files and folders
-f, --format <format>       format output: json, csv, cli-table
    --format-option [value] add formatter option
-k, --keys <keys>           report only numbers of the given keys
-d, --details               report stats of each analzed file
-a, --alias <custom ext>=<standard ext> alias custom ext to act like standard ext (eg. php5=php,less=css)

e.g.:

$ sloc src/
 
---------- Result ------------
 
            Physical :  1202
              Source :  751
             Comment :  322
 Single-line comment :  299
       Block comment :  23
               Mixed :  116
               Empty :  245
 
Number of files read :  10
 
------------------------------

$ sloc --details \
       --format cli-table \
       --keys total,source,comment \
       --exclude i18n*.\.coffee \
       --format-option no-head src/
 
┌─────────────────────────────────┬──────────┬────────┬─────────┐
│ src/cli.coffee                  │ 98       │ 74     │ 7       │
├─────────────────────────────────┼──────────┼────────┼─────────┤
│ src/helpers.coffee              │ 26       │ 20     │ 0       │
├─────────────────────────────────┼──────────┼────────┼─────────┤
│ src/sloc.coffee                 │ 196      │ 142    │ 20      │
├─────────────────────────────────┼──────────┼────────┼─────────┤
│ src/formatters/simple.coffee    │ 44       │ 28     │ 7       │
├─────────────────────────────────┼──────────┼────────┼─────────┤
│ src/formatters/csv.coffee       │ 25       │ 14     │ 5       │
├─────────────────────────────────┼──────────┼────────┼─────────┤
│ src/formatters/cli-table.coffee │ 22       │ 13     │ 0       │
└─────────────────────────────────┴──────────┴────────┴─────────┘

Node.js

Or use it in your own node module

var fs    = require('fs');
var sloc  = require('sloc');
 
fs.readFile("mySourceFile.coffee", "utf8", function(err, code){
 
  if(err){ console.error(err); }
  else{
    var stats = sloc(code,"coffee");
    for(i in sloc.keys){
      var k = sloc.keys[i];
      console.log(k + " : " + stats[k]);
    }
  }
});

Browser

var sourceCode = "foo();\n /* bar */\n baz();";
 
var stats = window.sloc(sourceCode,"javascript");

Contribute an new formatter

Fork this repo
add the new formatter into src/formatters/ that exports a method with three arguments:
1. results (object)
2. global options (object)
3. formatter specific options (array)
add the formatter in src/cli.coffee
open a pull request