Add CLI

Author: Anand Thakker

README.md

@@ -36,6 +36,13 @@ gdalinfo.remote('http://example.com/somefile.TIF', function(err, metadata) {
 
 ```
 
+#### From Command Line
+
+```bash
+npm install -g gdalinfo-json
+gdalinfo-json somefile.TIF
+```
+
 ### Example output
 
 ```json

cli.js

@@ -0,0 +1,18 @@
+#!/usr/bin/env node
+'use strict';
+
+var gdalinfo = require('./');
+
+if (process.argv.length < 3) {
+  console.log('Usage: ', process.argv[0], process.argv[1], ' FILENAME|URL');
+  process.exit();
+}
+
+gdalinfo.local(process.argv[2], function(err, metadata) {
+    if (err) {
+      console.error(err);
+      process.exit(1);
+    }
+    console.log(JSON.stringify(metadata));
+    process.exit();
+});

package.json

@@ -3,6 +3,7 @@
   "version": "0.4.1",
   "description": "gdalinfo output in json",
   "main": "index.js",
+  "bin": "cli.js",
   "scripts": {
     "test": "./node_modules/mocha/bin/mocha"
   },