feat(cli): Allow validate from text (#71)

* feat(cli): Allow validate from text

With this approach makes easier validate commit messages through a text instead of only accepting
validation through files.

* refactor(cli): Replace fs.stat with fs.readFile

Since in case the file exists we will read it. Makes more sense use directly fs.readFile.

* refactor(cli): Name some anonymous functions

.all-contributorsrc

@@ -267,6 +267,15 @@
       "contributions": [
         "doc"
       ]
+    },
+    {
+      "login": "maxcnunes",
+      "name": "Max Claus Nunes",
+      "avatar_url": "https://avatars1.githubusercontent.com/u/680356?v=3",
+      "profile": "http://blog.maxcnunes.net/",
+      "contributions": [
+        "code"
+      ]
     }
   ]
 }

README.md

@@ -7,7 +7,7 @@
 [![downloads][downloads-badge]][npm-stat]
 [![MIT License][license-badge]][LICENSE]
 
-[![All Contributors](https://img.shields.io/badge/all_contributors-26-orange.svg?style=flat-square)](#contributors)
+[![All Contributors](https://img.shields.io/badge/all_contributors-27-orange.svg?style=flat-square)](#contributors)
 [![PRs Welcome][prs-badge]][prs]
 [![Donate][donate-badge]][donate]
 [![Code of Conduct][coc-badge]][coc]
@@ -192,7 +192,7 @@ Thanks goes to these wonderful people ([emoji key](https://github.com/kentcdodds
 | :---: | :---: | :---: | :---: | :---: | :---: | :---: |
 | [<img src="https://avatars.githubusercontent.com/u/2112202?v=3" width="100px;"/><br /><sub>Shawn Erquhart</sub>](http://www.professant.com)<br />[💻](https://github.com/kentcdodds/validate-commit-msg/commits?author=erquhart) [📖](https://github.com/kentcdodds/validate-commit-msg/commits?author=erquhart) [⚠️](https://github.com/kentcdodds/validate-commit-msg/commits?author=erquhart) | [<img src="https://avatars.githubusercontent.com/u/194482?v=3" width="100px;"/><br /><sub>Tushar Mathur</sub>](http://tusharm.com)<br />[💻](https://github.com/kentcdodds/validate-commit-msg/commits?author=tusharmath) [⚠️](https://github.com/kentcdodds/validate-commit-msg/commits?author=tusharmath) | [<img src="https://avatars.githubusercontent.com/u/904007?v=3" width="100px;"/><br /><sub>Jason Dreyzehner</sub>](https://twitter.com/bitjson)<br />[💻](https://github.com/kentcdodds/validate-commit-msg/commits?author=bitjson) [📖](https://github.com/kentcdodds/validate-commit-msg/commits?author=bitjson) [⚠️](https://github.com/kentcdodds/validate-commit-msg/commits?author=bitjson) | [<img src="https://avatars.githubusercontent.com/u/9654923?v=3" width="100px;"/><br /><sub>Abimbola Idowu</sub>](http://twitter.com/hisabimbola)<br />[💻](https://github.com/kentcdodds/validate-commit-msg/commits?author=hisabimbola) | [<img src="https://avatars.githubusercontent.com/u/2212006?v=3" width="100px;"/><br /><sub>Gleb Bahmutov</sub>](https://glebbahmutov.com/)<br />[💻](https://github.com/kentcdodds/validate-commit-msg/commits?author=bahmutov) [⚠️](https://github.com/kentcdodds/validate-commit-msg/commits?author=bahmutov) | [<img src="https://avatars.githubusercontent.com/u/332905?v=3" width="100px;"/><br /><sub>Dennis</sub>](http://dennis.io)<br />[💻](https://github.com/kentcdodds/validate-commit-msg/commits?author=ds82) | [<img src="https://avatars.githubusercontent.com/u/6425649?v=3" width="100px;"/><br /><sub>Matt Lewis</sub>](https://mattlewis.me/)<br />[💻](https://github.com/kentcdodds/validate-commit-msg/commits?author=mattlewis92) |
 | [<img src="https://avatars.githubusercontent.com/u/323761?v=3" width="100px;"/><br /><sub>Tom Vincent</sub>](https://tlvince.com)<br />[💻](https://github.com/kentcdodds/validate-commit-msg/commits?author=tlvince) | [<img src="https://avatars.githubusercontent.com/u/615381?v=3" width="100px;"/><br /><sub>Anders D. Johnson</sub>](https://andrz.me/)<br />[💻](https://github.com/kentcdodds/validate-commit-msg/commits?author=adjohnson916) [📖](https://github.com/kentcdodds/validate-commit-msg/commits?author=adjohnson916) [⚠️](https://github.com/kentcdodds/validate-commit-msg/commits?author=adjohnson916) | [<img src="https://avatars.githubusercontent.com/u/1643758?v=3" width="100px;"/><br /><sub>James Zetlen</sub>](http://jameszetlen.com)<br />[💻](https://github.com/kentcdodds/validate-commit-msg/commits?author=zetlen) [⚠️](https://github.com/kentcdodds/validate-commit-msg/commits?author=zetlen) | [<img src="https://avatars.githubusercontent.com/u/235784?v=3" width="100px;"/><br /><sub>Paul Bienkowski</sub>](http://opatut.de)<br />[💻](https://github.com/kentcdodds/validate-commit-msg/commits?author=opatut) [⚠️](https://github.com/kentcdodds/validate-commit-msg/commits?author=opatut) | [<img src="https://avatars.githubusercontent.com/u/324073?v=3" width="100px;"/><br /><sub>Barney Scott</sub>](https://github.com/bmds)<br />[💻](https://github.com/kentcdodds/validate-commit-msg/commits?author=bmds) [⚠️](https://github.com/kentcdodds/validate-commit-msg/commits?author=bmds) | [<img src="https://avatars.githubusercontent.com/u/5572221?v=3" width="100px;"/><br /><sub>Emmanuel Murillo Sánchez</sub>](https://github.com/Emmurillo)<br />[💻](https://github.com/kentcdodds/validate-commit-msg/commits?author=Emmurillo) [⚠️](https://github.com/kentcdodds/validate-commit-msg/commits?author=Emmurillo) | [<img src="https://avatars.githubusercontent.com/u/968267?v=3" width="100px;"/><br /><sub>Hans Kristian Flaatten</sub>](https://starefossen.github.io)<br />[💻](https://github.com/kentcdodds/validate-commit-msg/commits?author=Starefossen) [⚠️](https://github.com/kentcdodds/validate-commit-msg/commits?author=Starefossen) |
-| [<img src="https://avatars.githubusercontent.com/u/16605186?v=3" width="100px;"/><br /><sub>Bo Lingen</sub>](https://github.com/citycide)<br />[📖](https://github.com/kentcdodds/validate-commit-msg/commits?author=citycide) | [<img src="https://avatars.githubusercontent.com/u/1057324?v=3" width="100px;"/><br /><sub>Spyros Ioakeimidis</sub>](http://www.spyros.io)<br />[💻](https://github.com/kentcdodds/validate-commit-msg/commits?author=spirosikmd) [📖](https://github.com/kentcdodds/validate-commit-msg/commits?author=spirosikmd) [⚠️](https://github.com/kentcdodds/validate-commit-msg/commits?author=spirosikmd) | [<img src="https://avatars.githubusercontent.com/u/126441?v=3" width="100px;"/><br /><sub>Matt Travi</sub>](https://matt.travi.org)<br />[🐛](https://github.com/kentcdodds/validate-commit-msg/issues?q=author%3Atravi) | [<img src="https://avatars.githubusercontent.com/u/868301?v=3" width="100px;"/><br /><sub>Jonathan Garbee</sub>](http://jonathan.garbee.me)<br />[💻](https://github.com/kentcdodds/validate-commit-msg/commits?author=Garbee) [📖](https://github.com/kentcdodds/validate-commit-msg/commits?author=Garbee) [⚠️](https://github.com/kentcdodds/validate-commit-msg/commits?author=Garbee) | [<img src="https://avatars.githubusercontent.com/u/2978876?v=3" width="100px;"/><br /><sub>Tobias Lins</sub>](https://lins.in)<br />[📖](https://github.com/kentcdodds/validate-commit-msg/commits?author=tobiaslins) |
+| [<img src="https://avatars.githubusercontent.com/u/16605186?v=3" width="100px;"/><br /><sub>Bo Lingen</sub>](https://github.com/citycide)<br />[📖](https://github.com/kentcdodds/validate-commit-msg/commits?author=citycide) | [<img src="https://avatars.githubusercontent.com/u/1057324?v=3" width="100px;"/><br /><sub>Spyros Ioakeimidis</sub>](http://www.spyros.io)<br />[💻](https://github.com/kentcdodds/validate-commit-msg/commits?author=spirosikmd) [📖](https://github.com/kentcdodds/validate-commit-msg/commits?author=spirosikmd) [⚠️](https://github.com/kentcdodds/validate-commit-msg/commits?author=spirosikmd) | [<img src="https://avatars.githubusercontent.com/u/126441?v=3" width="100px;"/><br /><sub>Matt Travi</sub>](https://matt.travi.org)<br />[🐛](https://github.com/kentcdodds/validate-commit-msg/issues?q=author%3Atravi) | [<img src="https://avatars.githubusercontent.com/u/868301?v=3" width="100px;"/><br /><sub>Jonathan Garbee</sub>](http://jonathan.garbee.me)<br />[💻](https://github.com/kentcdodds/validate-commit-msg/commits?author=Garbee) [📖](https://github.com/kentcdodds/validate-commit-msg/commits?author=Garbee) [⚠️](https://github.com/kentcdodds/validate-commit-msg/commits?author=Garbee) | [<img src="https://avatars.githubusercontent.com/u/2978876?v=3" width="100px;"/><br /><sub>Tobias Lins</sub>](https://lins.in)<br />[📖](https://github.com/kentcdodds/validate-commit-msg/commits?author=tobiaslins) | [<img src="https://avatars1.githubusercontent.com/u/680356?v=3" width="100px;"/><br /><sub>Max Claus Nunes</sub>](http://blog.maxcnunes.net/)<br />[💻](https://github.com/kentcdodds/validate-commit-msg/commits?author=maxcnunes) |
 <!-- ALL-CONTRIBUTORS-LIST:END -->
 
 This project follows the [all-contributors](https://github.com/kentcdodds/all-contributors) specification. Contributions of any kind welcome!

lib/cli.js

@@ -18,27 +18,44 @@ var getGitFolder = require('./getGitFolder');
 // hacky start if not run by mocha :-D
 // istanbul ignore next
 if (process.argv.join('').indexOf('mocha') === -1) {
+  var commitMsgFileOrText = process.argv[2] || getGitFolder() + '/COMMIT_EDITMSG';
 
-  var commitMsgFile = process.argv[2] || getGitFolder() + '/COMMIT_EDITMSG';
-  var incorrectLogFile = commitMsgFile.replace('COMMIT_EDITMSG', 'logs/incorrect-commit-msgs');
+  var bufferToString = function (buffer) {
+    return hasToString(buffer) && buffer.toString();
+  };
 
-  var hasToString = function hasToString(x) {
+  var hasToString = function (x) {
     return x && typeof x.toString === 'function';
   };
 
-  fs.readFile(commitMsgFile, function(err, buffer) {
-    var msg = getCommitMessage(buffer);
-
+  var validate = function (msg, isFile) {
     if (!validateMessage(msg)) {
-      fs.appendFile(incorrectLogFile, msg + '\n', function() {
+      var incorrectLogFile = (
+        isFile
+        ? commitMsgFileOrText.replace('COMMIT_EDITMSG', 'logs/incorrect-commit-msgs')
+        : (getGitFolder() + '/logs/incorrect-commit-msgs')
+      );
+
+      fs.appendFile(incorrectLogFile, msg + '\n', function appendFile() {
         process.exit(1);
       });
     } else {
       process.exit(0);
     }
+  };
 
-    function getCommitMessage(buffer) {
-      return hasToString(buffer) && buffer.toString();
+  fs.readFile(commitMsgFileOrText, function readFile(err, buffer) {
+    if(err && err.code !== 'ENOENT') {
+      throw err;
     }
+
+    var isFile = !err;
+    var msg = (
+      isFile
+      ? bufferToString(buffer)
+      : commitMsgFileOrText
+    );
+
+    validate(msg, isFile);
   });
 }