Remove per-table varnish invalidation

lib/cartodb/cache_validator.js

@@ -1,25 +0,0 @@
-var Varnish = require('node-varnish');
-var varnish_queue = null;
-
-function init(host, port, secret) {
-    varnish_queue = new Varnish.VarnishQueue(host, port, secret);
-    varnish_queue.on('error', function(e) {
-        console.log("[CACHE VALIDATOR ERROR] " + e);
-    });
-}
-
-function invalidate_db(dbname, table) {
-    var cmd = 'purge obj.http.X-Cache-Channel ~ "^' + dbname +
-              ':(.*'+ table +'.*)|(table)$"';
-    try{
-        varnish_queue.run_cmd(cmd, false);
-    } catch (e) {
-        console.log("[CACHE VALIDATOR ERROR] could not queue command " +
-                    cmd + " -- " + e);
-    }
-}
-
-module.exports = {
-    init: init,
-    invalidate_db: invalidate_db
-};

package.json

@@ -22,7 +22,6 @@
       "Sandro Santilli <strk@vizzuality.com>"
     ],
     "dependencies": {
-        "node-varnish": "https://github.com/Vizzuality/node-varnish/tarball/0.3.0",
         "underscore"  : "~1.6.0",
         "dot": "~1.0.2",
         "windshaft": "https://github.com/CartoDB/Windshaft/tarball/master",

test/acceptance/cache_validator.js

@@ -1,21 +0,0 @@
-var assert      = require('../support/assert');
-require(__dirname + '/../support/test_helper');
-var CacheValidator = require(__dirname + '/../../lib/cartodb/cache_validator');
-
-var VarnishEmu = require('../support/VarnishEmu');
-
-suite('cache_validator', function() {
-
-    test('should call purge on varnish when invalidate database', function(done) {
-        var varnish = new VarnishEmu(function(cmds) {
-            assert.ok(cmds.length == 1);        
-            assert.equal('purge obj.http.X-Cache-Channel ~ \"^test_db:(.*test_cache.*)|(table)$\"\n', cmds[0].toString('utf8'));
-            done();
-        },
-        function() {
-            CacheValidator.init('localhost', 1337);
-            CacheValidator.invalidate_db('test_db', 'test_cache');
-        });
-    });
-
-});