Bump to v1.2.0 and check in dist files

bower.json

@@ -1,6 +1,6 @@
 {
   "name": "imgix-core-js",
-  "version": "1.1.1",
+  "version": "1.2.0",
   "homepage": "https://github.com/imgix/imgix-core-js",
   "authors": [
     "Kelly Sutton <michael.k.sutton@gmail.com>",

dist/imgix-core-js.js

@@ -1,30 +1,36 @@
 (function (global, factory) {
   if (typeof define === 'function' && define.amd) {
-    define('Imgix', ['exports', 'md5', 'js-base64'], factory);
+    define('Imgix', ['exports', 'md5', 'js-base64', 'crc'], factory);
   } else if (typeof exports !== 'undefined') {
-    module.exports = factory(exports, require('md5'), require('js-base64').Base64);
+    module.exports = factory(exports, require('md5'), require('js-base64').Base64, require('crc'));
   } else {
     var mod = {
       exports: {}
     };
-    global.ImgixClient = factory(mod.exports, global.md5, global.Base64);
+    global.ImgixClient = factory(mod.exports, global.md5, global.Base64, global.crc);
   }
-})(this, function (exports, _md5, _jsBase64) {
+})(this, function (exports, _md5, _jsBase64, _crc) {
   var md5 = _md5;
   var Base64 = _jsBase64.Base64 || _jsBase64;
+  var crc = _crc;
 
-  var VERSION = '1.1.1';
+  var VERSION = '1.2.0';
+  var SHARD_STRATEGY_CRC = 'crc';
+  var SHARD_STRATEGY_CYCLE = 'cycle';
   var DEFAULTS = {
     host: null,
+    domains: [],
     useHTTPS: true,
-    includeLibraryParam: true
+    includeLibraryParam: true,
+    shard_strategy: SHARD_STRATEGY_CRC
   };
 
   var ImgixClient = (function() {
     function ImgixClient(opts) {
       var key, val;
 
       this.settings = {};
+      this._shard_next_index = 0;
 
       for (key in DEFAULTS) {
         val = DEFAULTS[key];
@@ -36,8 +42,24 @@
         this.settings[key] = val;
       }
 
-      if (!this.settings.host) {
-        throw new Error('ImgixClient must be passed a valid host');
+      if (!Array.isArray(this.settings.domains)) {
+        this.settings.domains = [this.settings.domains];
+      }
+
+      if (!this.settings.host && this.settings.domains.length === 0) {
+        throw new Error('ImgixClient must be passed valid domain(s)');
+      }
+
+      if (this.settings.shard_strategy !== SHARD_STRATEGY_CRC
+          && this.settings.shard_strategy !== SHARD_STRATEGY_CYCLE) {
+        throw new Error('Shard strategy must be one of ' +
+          SHARD_STRATEGY_CRC + ' or ' + SHARD_STRATEGY_CYCLE);
+      }
+
+      if (this.settings.host) {
+        console.warn("'host' argument is deprecated; use 'domains' instead.");
+        if (this.settings.domains.length == 0)
+          this.settings.domains[0] = this.settings.host;
       }
 
       if (this.settings.includeLibraryParam) {
@@ -59,9 +81,20 @@
         queryParams = this._signParams(path, queryParams);
       }
 
-      return this.settings.urlPrefix + this.settings.host + path + queryParams;
+      return this.settings.urlPrefix + this._getDomain(path) + path + queryParams;
     };
 
+    ImgixClient.prototype._getDomain = function(path) {
+      if (this.settings.shard_strategy === SHARD_STRATEGY_CYCLE) {
+        var domain = this.settings.domains[this._shard_next_index];
+        this._shard_next_index = (this._shard_next_index + 1) % this.settings.domains.length;
+        return domain;
+      }
+      else if (this.settings.shard_strategy === SHARD_STRATEGY_CRC) {
+        return this.settings.domains[crc.crc32(path) % this.settings.domains.length];
+      }
+    }
+
     ImgixClient.prototype._sanitizePath = function(path) {
       // Strip leading slash first (we'll re-add after encoding)
       path = path.replace(/^\//, '');
@@ -117,6 +150,8 @@
     };
 
     ImgixClient.VERSION = VERSION;
+    ImgixClient.SHARD_STRATEGY_CRC = SHARD_STRATEGY_CRC;
+    ImgixClient.SHARD_STRATEGY_CYCLE = SHARD_STRATEGY_CYCLE;
 
     return ImgixClient;
   })();

package.json

@@ -1,7 +1,7 @@
 {
   "name": "imgix-core-js",
   "description": "Common boilerplate for all imgix JavaScript-based functionality.",
-  "version": "1.1.1",
+  "version": "1.2.0",
   "repository": "https://github.com/imgix/imgix-core-js",
   "scripts": {
     "assert_version": "node assert_version.js",

src/imgix-core-js.js

@@ -14,7 +14,7 @@
   var Base64 = _jsBase64.Base64 || _jsBase64;
   var crc = _crc;
 
-  var VERSION = '1.1.1';
+  var VERSION = '1.2.0';
   var SHARD_STRATEGY_CRC = 'crc';
   var SHARD_STRATEGY_CYCLE = 'cycle';
   var DEFAULTS = {