Merge pull request #45 from Financial-Times/purge

Purge

.gitignore

@@ -1 +1,2 @@
 /node_modules/
+.idea/

README.md

@@ -16,6 +16,7 @@
     deploy-hashed-assets                   deploys hashed asset files to S3 (if AWS keys set correctly)
     build                                  build javascript and css
     destroy [app]                          deletes the app from heroku
+    purge [options]                        purges the given url from the Fastly cache.  Requires a FASTLY_KEY environment variable set to your fastly api key
     *                                      
 
   Options:

bin/next-build-tools.js

@@ -13,6 +13,7 @@ var verify = require('../tasks/verify');
 var build = require('../tasks/build');
 var verifyLayoutDeps = require('../tasks/verify-layout-deps');
 var destroy = require('../tasks/destroy');
+var purge = require('../tasks/purge');
 var nightwatch = require('../tasks/nightwatch');
 var downloadConfiguration = require('../tasks/download-configuration');
 var deployHashedAssets = require('../tasks/deploy-hashed-assets');
@@ -129,13 +130,27 @@ program
 			}
 		});
 
+	program
+		.command('purge [url')
+		.option('-s, --soft <soft>', 'Perform a "Soft Purge (will invalidate the content rather than remove it"')
+		.description('Purges the given url. Requires a FASTLY_KEY environment variable')
+		.action(function(url, options){
+			if(url){
+				purge(url, options).catch(exit);
+			}else{
+				exit('Please provide a url');
+			}
+		});
+
 	program
 		.command('*')
 		.description('')
 		.action(function(app) {
 			exit("The command ‘" + app + "’ is not known");
 		});
 
+
+
 program.parse(process.argv);
 
 if (!process.argv.slice(2).length) {

tasks/purge.js

@@ -0,0 +1,29 @@
+'use strict';
+
+var denodeify = require('denodeify');
+var exec = denodeify(require('child_process').exec, function(err, stdout, stderr) {
+	console.log(stdout);
+	console.log(stderr);
+	return [err];
+});
+
+var FASTLY_KEY = process.env.FASTLY_KEY;
+
+module.exports = function(url, opts){
+	if(!FASTLY_KEY){
+		throw new Error('No Fastly Key Found!');
+	}
+
+	var options = opts || {};
+	var soft = options.soft || false;
+	var command = 'curl ' +
+		'-x 10.113.219.30:8080 ' +
+		'-s 1 ' +
+		'-i ' +
+		'--request PURGE ' +
+		'--header "Fastly-Key: ' + FASTLY_KEY + '" ' +
+		'--header "Content-Accept: application/json" ' +
+		(soft ? '--header "Fastly-Soft-Purge:1' : '') +
+		url;
+	return exec(command);
+};