Sloc NPM | npm.io

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 within block comments
empty lines
lines with TODO's

Supported outputs

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

CSV
JSON
Command line 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>

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
-i, --include <regex>       regular expression to include 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 analyzed 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 usage

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