Added help dialog to exec and make sure the CD is a Git repo

bin/auto_npm.js

@@ -1 +1,67 @@
 #!/usr/bin/env node
+
+var fs      = require('fs')
+  , path    = require('path')
+  , package = require('../package')
+  , cd      = process.cwd()
+  , args    = process.argv.slice(2)
+  , enabled = false
+  , gitDir
+  , help
+  , arg;
+
+//
+// Help dialog
+help = [
+    ''
+  , package.name + ' ' + package.version
+  , ''
+  , 'Description'
+  , '  ' + package.description
+  , ''
+  , 'Usage'
+  , '  --enable, -e   # Enable Auto NPM in a git repo'
+  , '  --disable, -d  # Disable Auto NPM in a git repo'
+  , '  --help, -h     # Dipslay this help dialog'
+].join('\n');
+
+// Show help dialog if no args are given
+if(args.length === 0) {
+  console.log(help);
+  process.exit(0);
+}
+
+//
+// Get arguments
+while(args.length) {
+  arg = args.shift();
+
+  switch(arg) {
+    case '-h':
+    case '--help':
+      console.log(help);
+      process.exit(0);
+      break;
+    case '-e':
+    case '--enable':
+      enabled = true;
+      break;
+    case '-d':
+    case '--disable':
+      enabled = false;
+      break;
+  }
+}
+
+//
+// Check if directory is a Git repo
+gitDir = path.existsSync(path.join(cd, '.git'));
+if(!gitDir) throw new Error('The Directory "' + cd + '" is not a git repo.');
+
+//
+// Enable Auto NPM or disable it
+if(enabled) {
+  // Start watching for commits
+} else {
+  // Disable watching for commits
+}

package.json

@@ -1,6 +1,6 @@
 {
     "name": "Auto NPM"
-  , "description": "Automatically updated NPM packages when you submit a commit"
+  , "description": "Automatically updated NPM packages when you submit a commit that updates the version number in `package.json`"
   , "keywords": [
       "git"
     , "commit"