Add server config, move plugin file

server.js

@@ -1,9 +1,9 @@
 const path = require("path");
 const throng = require("throng");
+
 const createServer = require("./server/createServer");
 const createDevServer = require("./server/createDevServer");
-
-const port = parseInt(process.env.PORT, 10) || 5000;
+const config = require("./server/config");
 
 function startServer(id) {
   const server =
@@ -15,11 +15,15 @@ function startServer(id) {
       : createDevServer(
           path.resolve(__dirname, "public"),
           require("./webpack.config"),
-          `http://localhost:${port}`
+          config.origin
         );
 
-  server.listen(port, () => {
-    console.log("Server #%s listening on port %s, Ctrl+C to stop", id, port);
+  server.listen(config.port, () => {
+    console.log(
+      "Server #%s listening on port %s, Ctrl+C to stop",
+      id,
+      config.port
+    );
   });
 }
 

server/actions/serveFile.js

@@ -7,7 +7,7 @@ const IndexPage = require("../components/IndexPage");
 const renderPage = require("../utils/renderPage");
 const getMetadata = require("../utils/getMetadata");
 const getFileContentType = require("../utils/getFileContentType");
-const unpkgRewrite = require("../utils/unpkgRewriteBabelPlugin");
+const unpkgRewrite = require("../plugins/unpkgRewrite");
 const getEntries = require("../utils/getEntries");
 
 /**

server/config.js

@@ -0,0 +1,6 @@
+exports.port = parseInt(process.env.PORT, 10) || 5000;
+
+exports.origin =
+  process.env.NODE_ENV === "production" || process.env.NODE_ENV === "test"
+    ? "https://unpkg.com"
+    : `http://localhost:${exports.port}`;

server/plugins/__tests__/.eslintrc

@@ -0,0 +1,5 @@
+{
+  "env": {
+    "jest": true
+  }
+}

server/plugins/__tests__/unpkgRewrite-test.js

@@ -1,5 +1,5 @@
 const babel = require("babel-core");
-const unpkgRewrite = require("../unpkgRewriteBabelPlugin");
+const unpkgRewrite = require("../unpkgRewrite");
 
 const testCases = [
   {

server/plugins/unpkgRewrite.js

@@ -1,9 +1,11 @@
 const URL = require("whatwg-url");
 const warning = require("warning");
 
+const config = require("../config");
+
 const bareIdentifierFormat = /^((?:@[^\/]+\/)?[^\/]+)(\/.*)?$/;
 
-function unpkgRewriteBabelPlugin(dependencies = {}) {
+function unpkgRewrite(dependencies = {}) {
   return {
     inherits: require("babel-plugin-syntax-export-extensions"),
 
@@ -34,11 +36,13 @@ function unpkgRewriteBabelPlugin(dependencies = {}) {
 
           const version = dependencies[packageName] || "latest";
 
-          path.node.source.value = `https://unpkg.com/${packageName}@${version}${file}?module`;
+          path.node.source.value = `${
+            config.origin
+          }/${packageName}@${version}${file}?module`;
         }
       }
     }
   };
 }
 
-module.exports = unpkgRewriteBabelPlugin;
+module.exports = unpkgRewrite;