Merge pull request +7862 from c9/parallel-requests

More parallel requests + caching for unpacked (online)dev

configs/client-default.js

@@ -302,6 +302,9 @@ module.exports = function(options) {
         {
             packagePath: "plugins/c9.ide.language/language",
             workspaceDir: workspaceDir,
+            staticPrefix: options.packed
+                ? staticPrefix
+                : options.ideBaseUrl + "/uph" + staticPrefix,
             workerPrefix: options.CORSWorkerPrefix // "/static/standalone/worker"
         },
         "plugins/c9.ide.language/keyhandler",

node_modules/architect-build/build_support/mini_require.js

@@ -274,6 +274,9 @@ var config = require.config = function(cfg) {
     cfg.paths && Object.keys(cfg.paths).forEach(function(p) {
         config.paths[p] = cfg.paths[p];
     });
+    
+    if (cfg.baseUrlLoadBalancers)
+        config.baseUrlLoadBalancers = cfg.baseUrlLoadBalancers;
 };
 config.packages = Object.create(null);
 config.paths = Object.create(null);
@@ -322,9 +325,24 @@ require.toUrl = function(moduleName, ext, skipExt) {
     if (!absRe.test(url)) {
         url = (config.baseUrl || require.MODULE_LOAD_URL + "/") +  url;
     }
+    if (url[0] === "/" && config.baseUrlLoadBalancers) {
+        var n = Math.abs(hashCode(url)) % config.baseUrlLoadBalancers.length;
+        url =  config.baseUrlLoadBalancers[n] + url;
+    }
     return url;
 };
 
+function hashCode(string) {
+    var result = 0, i, chr, len;
+    if (string.length == 0) return result;
+    for (i = 0, len = string.length; i < len; i++) {
+        chr = string.charCodeAt(i);
+        result = ((result << 5) - result) + chr;
+        result |= 0; // Convert to 32bit integer
+    }
+    return result;
+}
+
 var loadScript = function(path, id, callback) {
     // TODO use importScripts for webworkers
     var head = document.head || document.documentElement;

plugins/c9.static/unpacked_helper.js

@@ -0,0 +1,42 @@
+"use strict";
+
+plugin.consumes = [
+    "db", "connect.static"
+];
+plugin.provides = [
+    "unpacked_helper"
+];
+
+module.exports = plugin;
+
+function plugin(options, imports, register) {
+    var connectStatic = imports["connect.static"];
+    var assert = require("assert");
+    var baseUrl = options.baseUrl;
+    var ideBaseUrl = options.ideBaseUrl;
+    assert(baseUrl, "baseUrl must be set");
+    assert(ideBaseUrl, "ideBaseUrl must be set");
+    
+    var balancers = [
+        baseUrl + "/uph",
+    ];
+    /* UNDONE: for now we put all static content on one domain
+               because of reports of CORS errors
+    if (!options.avoidSubdomains)
+        balancers.push(
+            ideBaseUrl
+            // We could include others but dogfooding URLs like
+            // vfs.newclient-lennartcl.c9.io don't have a cert, so
+            // let's not
+            // apiBaseUrl + "/uph",
+            // vfsBaseUrl + "/uph"
+        );
+    */
+    
+    connectStatic.getRequireJsConfig().baseUrlLoadBalancers = balancers;
+    assert(connectStatic.getRequireJsConfig().baseUrlLoadBalancers);
+    
+    register(null, {
+        "unpacked_helper": {}
+    });
+}