New: First implementation

Author: yocontra

.gitignore

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+.DS_Store
+*.log
+node_modules
+build
+*.node
+components

.npmignore

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+.DS_Store
+*.log
+node_modules
+build
+*.node
+components

.travis.yml

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+language: node_js
+node_js:
+  - "0.7"
+  - "0.8"
+  - "0.9"
+  - "0.10"
+after_script:
+  - npm run coveralls

LICENSE

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+Copyright (c) 2014 Fractal <[email protected]>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

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+# replace-ext [![NPM version][npm-image]][npm-url] [![Build Status][travis-image]][travis-url] [![Coveralls Status][coveralls-image]][coveralls-url] [![Dependency Status][david-image]][david-url]
+
+
+## Information
+
+<table>
+<tr> 
+<td>Package</td><td>replace-ext</td>
+</tr>
+<tr>
+<td>Description</td>
+<td>Replaces a file extension with another one</td>
+</tr>
+<tr>
+<td>Node Version</td>
+<td>>= 0.4</td>
+</tr>
+</table>
+
+## Usage
+
+```javascript
+var replaceExt = require('replace-ext');
+
+var path = '/some/dir/file.js';
+var npath = replaceExt(path, '.coffee');
+
+console.log(npath); // /some/dir/file.coffee
+```
+
+[npm-url]: https://npmjs.org/package/replace-ext
+[npm-image]: https://badge.fury.io/js/replace-ext.png
+
+[travis-url]: https://travis-ci.org/wearefractal/replace-ext
+[travis-image]: https://travis-ci.org/wearefractal/replace-ext.png?branch=master
+
+[coveralls-url]: https://coveralls.io/r/wearefractal/replace-ext
+[coveralls-image]: https://coveralls.io/repos/wearefractal/replace-ext/badge.png
+
+[depstat-url]: https://david-dm.org/wearefractal/replace-ext
+[depstat-image]: https://david-dm.org/wearefractal/replace-ext.png
+
+[david-url]: https://david-dm.org/wearefractal/replace-ext
+[david-image]: https://david-dm.org/wearefractal/replace-ext.png?theme=shields.io

index.js

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+var path = require('path');
+
+module.exports = function(npath, ext) {
+  if (typeof npath !== 'string') return npath;
+  if (npath.length === 0) return npath;
+
+  var nFileName = path.basename(npath, path.extname(npath))+ext;
+  return path.join(path.dirname(npath), nFileName);
+};

package.json

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+{
+  "name":"replace-ext",
+  "description":"Replaces a file extension with another one",
+  "version":"0.0.0",
+  "homepage":"http://github.com/wearefractal/replace-ext",
+  "repository":"git://github.com/wearefractal/replace-ext.git",
+  "author":"Fractal <[email protected]> (http://wearefractal.com/)",
+  "main":"./index.js",
+
+  "dependencies":{
+
+  },
+  "devDependencies": {
+    "mocha": "~1.17.0",
+    "should": "~3.1.0",
+    "mocha-lcov-reporter": "~0.0.1",
+    "coveralls": "~2.6.1",
+    "istanbul": "~0.2.3",
+    "rimraf": "~2.2.5",
+    "jshint": "~2.4.1"
+  },
+  "scripts": {
+    "test": "mocha --reporter spec && jshint",
+    "coveralls": "istanbul cover _mocha --report lcovonly -- -R spec && cat ./coverage/lcov.info | coveralls && rm -rf ./coverage"
+  },
+  "engines": {
+    "node": ">= 0.4"
+  },
+  "licenses":[
+    {
+      "type":"MIT",
+      "url":"http://github.com/wearefractal/replace-ext/raw/master/LICENSE"
+    }
+  ]
+}

test/main.js

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+var replaceExt = require('../');
+var path = require('path');
+var should = require('should');
+require('mocha');
+
+describe('replace-ext', function() {
+  it('should return a valid replaced extension on nested', function(done) {
+    var fname = path.join(__dirname, './fixtures/test.coffee');
+    var expected = path.join(__dirname, './fixtures/test.js');
+    var nu = replaceExt(fname, '.js');
+    should.exist(nu);
+    nu.should.equal(expected);
+    done();
+  });
+
+  it('should return a valid replaced extension on flat', function(done) {
+    var fname = 'test.coffee';
+    var expected = 'test.js';
+    var nu = replaceExt(fname, '.js');
+    should.exist(nu);
+    nu.should.equal(expected);
+    done();
+  });
+
+  it('should not return a valid replaced extension on empty string', function(done) {
+    var fname = '';
+    var expected = '';
+    var nu = replaceExt(fname, '.js');
+    should.exist(nu);
+    nu.should.equal(expected);
+    done();
+  });
+
+  it('should return a valid removed extension on nested', function(done) {
+    var fname = path.join(__dirname, './fixtures/test.coffee');
+    var expected = path.join(__dirname, './fixtures/test');
+    var nu = replaceExt(fname, '');
+    should.exist(nu);
+    nu.should.equal(expected);
+    done();
+  });
+
+  it('should return a valid added extension on nested', function(done) {
+    var fname = path.join(__dirname, './fixtures/test');
+    var expected = path.join(__dirname, './fixtures/test.js');
+    var nu = replaceExt(fname, '.js');
+    should.exist(nu);
+    nu.should.equal(expected);
+    done();
+  });
+});