CLI: Overrides default version info.

* Based on sindresorhus/meow#2.
* Adds alias -v.
* Improves info text; inspired by Less CLI. :)
* Updates readme.

PR URL: #717.

README.md

@@ -232,14 +232,19 @@ console.log(result.stats);
 
 ### Version information (v2 change)
 
-Both `node-sass` and `libsass` version info is now present in `package.json` and is exposed via `info()` method:
+Both `node-sass` and `libsass` version info is now present in `package.json` and is exposed via `info` method:
 
 ```javascript
-require('node-sass').info();
+var sass = require('node-sass');
+
+console.log(sass.info);
+
+/*
+  it will output something like:
 
-// outputs something like:
-// node-sass version: 2.0.0-beta
-// libsass version: 3.1.0-beta
+  node-sass       2.0.1   (Wrapper)       [JavaScript]
+  libsass         3.1.0   (Sass Compiler) [C/C++]
+*/
 ```
 
 ## Integrations
@@ -329,6 +334,7 @@ Output will be saved with the same name as input SASS file into the current work
     -o, --output               Output directory
     -x, --omit-source-map-url  Omit source map URL comment from output
     -i, --indented-syntax      Treat data from stdin as sass code (versus scss)
+    -v, --version              Prints version info
     --output-style             CSS output style (nested|expanded|compact|compressed)
     --source-comments          Include debug info in output
     --source-map               Emit source map

bin/node-sass

 #!/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
@@ -13,9 +13,8 @@ var Emitter = require('events').EventEmitter,
 
 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',
@@ -30,6 +29,7 @@ var cli = meow({
     '  -o, --output               Output directory',
     '  -x, --omit-source-map-url  Omit source map URL comment from output',
     '  -i, --indented-syntax      Treat data from stdin as sass code (versus scss)',
+    '  -v, --version              Prints version info',
     '  --output-style             CSS output style (nested|expanded|compact|compressed)',
     '  --source-comments          Include debug info in output',
     '  --source-map               Emit source map',
@@ -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

-var fs = require('fs');
+var eol = require('os').EOL,
+    fs = require('fs'),
+    package = require('../package.json');
 
 /**
  * Get Runtime Info
@@ -35,5 +37,13 @@ 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;

package.json

@@ -47,7 +47,7 @@
     "cross-spawn": "^0.2.6",
     "gaze": "^0.5.1",
     "get-stdin": "^4.0.1",
-    "meow": "^3.0.0",
+    "meow": "^3.1.0",
     "mkdirp": "^0.5.0",
     "nan": "^1.6.2",
     "npmconf": "^2.1.1",

test/api.js

@@ -792,11 +792,16 @@ describe('api', function() {
   });
 
   describe('.info()', function() {
+    var package = require('../package.json'),
+        info = sass.info;
+
     it('should return a correct version info', function(done) {
-      assert.equal(sass.info(), [
-        'node-sass version: ' + require('../package.json').version,
-        'libsass version: ' + require('../package.json').libsass
-      ].join('\n'));
+      assert(info.indexOf(package.version) > 0);
+      assert(info.indexOf('(Wrapper)') > 0);
+      assert(info.indexOf('[JavaScript]') > 0);
+      assert(info.indexOf(package.libsass) > 0);
+      assert(info.indexOf('(Sass Compiler)') > 0);
+      assert(info.indexOf('[C/C++]') > 0);
 
       done();
     });