CLI: Overrides default version info.

* Based on sindresorhus/meow#2.
* Improves info text; inspired by Less CLI. :)

PR URL: #717.

bin/node-sass

@@ -1,21 +1,20 @@
 #!/usr/bin/env node
 var Emitter = require('events').EventEmitter,
-    path = require('path'),
     Gaze = require('gaze'),
-    meow = require('meow'),
-    stdin = require('get-stdin'),
     grapher = require('sass-graph'),
-    render = require('../lib/render');
+    meow = require('meow'),
+    path = require('path'),
+    render = require('../lib/render'),
+    stdin = require('get-stdin');
 
 /**
  * Initialize CLI
  */
 
 var cli = meow({
   pkg: '../package.json',
+  version: process.sassInfo,
   help: [
-    require('../lib/').info(),
-    '',
     'Usage',
     '  node-sass [options] <input.scss> [output.css]',
     '  cat <input.scss> | node-sass > output.css',
@@ -38,6 +37,7 @@ var cli = meow({
     '  --include-path             Path to look for imported files',
     '  --precision                The amount of precision allowed in decimal numbers',
     '  --importer                 Path to custom importer',
+    '  --version                  Prints version info',
     '  --help                     Print usage info'
   ].join('\n')
 }, {
@@ -56,12 +56,13 @@ var cli = meow({
     'precision'
   ],
   alias: {
+    c: 'source-comments',
     i: 'indented-syntax',
     o: 'output',
-    w: 'watch',
+    r: 'recursive',
     x: 'omit-source-map-url',
-    c: 'source-comments',
-    r: 'recursive'
+    v: 'version',
+    w: 'watch'
   },
   default: {
     'include-path': process.cwd(),

lib/extensions.js

@@ -1,4 +1,6 @@
-var fs = require('fs');
+var eol = require('os').EOL,
+    fs = require('fs'),
+    package = require('../package.json');
 
 /**
  * Get Runtime Info
@@ -41,5 +43,13 @@ function getBinaryIdentifiableName() {
           v8SemVersion].join('');
 }
 
+function getSassInfo() {
+  return [
+           ['node-sass', package.version, '(Wrapper)', '[Javascript]'].join('\t'),
+           ['libsass  ', package.libsass, '(Sass Compiler)', '[C/C++]'].join('\t'),
+         ].join(eol);
+}
+
 process.runtime = getRuntimeInfo();
+process.sassInfo = getSassInfo();
 process.sassBinaryName = getBinaryIdentifiableName();

lib/index.js

@@ -259,11 +259,4 @@ module.exports.renderSync = function(options) {
  * @api public
  */
 
-module.exports.info = function() {
-  var package = require('../package.json');
-
-  return [
-           'node-sass version: ' + package.version,
-           'libsass version: ' + package.libsass
-         ].join('\n');
-};
+module.exports.info = process.sassInfo;