Initial release

.editorconfig

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+# editorconfig.org
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.md]
+trim_trailing_whitespace = false

.gitattributes

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+* text=auto

.gitignore

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+node_modules

.jshintrc

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+{
+  "node": true,
+  "esnext": true,
+  "bitwise": true,
+  "curly": true,
+  "eqeqeq": true,
+  "eqnull": true,
+  "immed": true,
+  "latedef": true,
+  "newcap": true,
+  "noarg": true,
+  "undef": true,
+  "strict": false,
+  "trailing": true,
+  "smarttabs": true,
+  "indent": 2,
+  "white": true,
+  "quotmark": "single",
+  "laxbreak": true
+}

.travis.yml

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+language: node_js
+node_js:
+  - '0.10'

cli.js

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+#!/usr/bin/env node
+'use strict';
+
+require('./doctor').run();

doctor.js

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+'use strict';
+
+var path = require('path');
+var chalk = require('chalk');
+var shell = require('shelljs');
+
+var doctor = module.exports = {
+  errors: [],
+
+  run: function () {
+    this.checkNodePath();
+    this.logErrors();
+  },
+
+  logErrors: function () {
+    if (!this.errors.length) {
+      console.log(chalk.green('[Yeoman Doctor] Everything looks all right!'));
+      console.log();
+      return;
+    }
+
+    console.log(chalk.red('[Yeoman Doctor] Uh oh, I found potential errors on your machine\n---------------\n'));
+    this.errors.forEach(function (errMsg) {
+      console.log('[' + chalk.red('Error') + '] ' + errMsg);
+      console.log();
+    });
+  },
+
+  checkNodePath: function () {
+    if (!process.env.NODE_PATH) {
+      return;
+    }
+
+    var nodePaths = process.env.NODE_PATH.split(path.delimiter).map(path.normalize);
+    var npmRoot = shell.exec('npm -g root', { silent: true }).output;
+
+    npmRoot = path.normalize(npmRoot.trim());
+
+    if (nodePaths.indexOf(npmRoot) < 0) {
+      this.nodePathMismatch({
+        nodePaths: nodePaths,
+        npmRoot: npmRoot
+      });
+    }
+  },
+
+  nodePathMismatch: function (val) {
+    var output = '';
+    output += 'npm root value is not in your NODE_PATH\n';
+    output += '  [' + chalk.cyan('info') + ']\n';
+    output += [
+      '    NODE_PATH = ' + val.nodePaths.join(path.delimiter),
+      '    npm root  = ' + val.npmRoot
+    ].join('\n');
+    output += '\n\n  [' + chalk.cyan('Fix') + '] Append the npm root value to your NODE_PATH variable\n';
+
+    if (process.platform === 'win32') {
+      output += [
+        '    If you\'re using cmd.exe, run this command to fix the issue:',
+        '      setx NODE_PATH "%NODE_PATH%;' + val.npmRoot + '"',
+        '    Then restart your command line. Otherwise, you can setup NODE_PATH manually:',
+        '      https://github.com/sindresorhus/guides/blob/master/set-environment-variables.md#windows'
+      ].join('\n');
+    } else {
+      output += [
+        '    Add this line to your .bashrc',
+        '      export NODE_PATH=$NODE_PATH:' + val.npmRoot,
+        '    Or run this command',
+        '      echo "export NODE_PATH=$NODE_PATH:' + val.npmRoot + '" >> ~/.bashrc && source ~/.bashrc'
+      ].join('\n');
+    }
+
+    this.errors.push(output);
+  }
+};

package.json

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+{
+  "name": "yeoman-doctor",
+  "version": "0.0.0",
+  "description": "Script to detect potential issues who'd break Yeoman on a user machine",
+  "license": "BSD",
+  "main": "doctor.js",
+  "bin": {
+    "yodoctor": "cli.js"
+  },
+  "author": "The Yeoman Team",
+  "repository": "yeoman/doctor",
+  "engines": {
+    "node": ">=0.10.0",
+    "npm": ">=1.4.3"
+  },
+  "scripts": {
+    "test": "jshint doctor.js"
+  },
+  "files": [
+    "doctor.js",
+    "cli.js"
+  ],
+  "keywords": [
+    "yeoman"
+  ],
+  "dependencies": {
+    "chalk": "^0.5.1",
+    "shelljs": "^0.3.0"
+  },
+  "devDependencies": {
+    "jshint": "^2.5.6"
+  }
+}

readme.md

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+# Yeoman Doctor [![Build Status](https://travis-ci.org/yeoman/doctor.svg?branch=master)](https://travis-ci.org/yeoman/doctor)
+
+
+
+## Usage
+
+Use as part of yo
+
+```
+yo doctor
+```
+
+If installed globally on your machine, you can also call `yodoctor`
+
+## License
+
+[BSD license](http://opensource.org/licenses/bsd-license.php) and copyright Google.