From eff3b3a1b04e4e70887de2b984df837bf5d8f436 Mon Sep 17 00:00:00 2001
From: Jeff Balboni <jeff.balboni@buildium.com>
Date: Wed, 29 Jun 2016 15:20:57 -0400
Subject: [PATCH] Initial code

---
 .gitignore   |  2 ++
 README.md    | 23 ++++++++++++++++++++++-
 index.js     | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 package.json | 30 ++++++++++++++++++++++++++++++
 4 files changed, 106 insertions(+), 1 deletion(-)
 create mode 100644 .gitignore
 create mode 100644 index.js
 create mode 100644 package.json

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..2d2b47d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+.idea
+node_modules
\ No newline at end of file
diff --git a/README.md b/README.md
index 078effa..15619b7 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,22 @@
-# browserify-builder-middleware
\ No newline at end of file
+# browserify-builder-middleware
+
+Express middleware for browserify-builder
+
+##Usage
+
+```
+var express = require('express');
+var browserifyBuilderMiddleware = require('browserify-builder-middleware');
+var config = require('./builder.config.js');
+var app = express();
+
+app.use(browserifyBuilderMiddleware(config, { publicPath: appPath, lazy: true}));
+```
+
+##Options
+
+- publicPath
+  - The path to append to the relative output path of the bundles
+- lazy
+  - Only compile app bundles when they are requested
+  - Default: `false`
\ No newline at end of file
diff --git a/index.js b/index.js
new file mode 100644
index 0000000..ec6a817
--- /dev/null
+++ b/index.js
@@ -0,0 +1,52 @@
+'use strict';
+
+var watchify = require('watchify-middleware');
+var createBuilder = require('browserify-builder');
+var merge = require('lodash/fp/merge');
+
+module.exports = function createMiddleware(config, middlewareConfig) {
+    var builder = createBuilder(merge(config, {parallel: false, options: {cache: {}, packageCache: {}}}));
+
+    var bundles = builder.getBundles();
+
+    var sharedBundles = bundles.filter(function(bundle) {
+        return bundle.type === 'shared';
+    }).reduce(function(bundleMap, bundle) {
+        var emitter = watchify.emitter(bundle.bundle, config.watchOptions);
+        bundleMap[(middlewareConfig.publicPath + bundle.path.replace('\\', '/')).toLowerCase()] = emitter.middleware;
+        console.log(bundle.path);
+        return bundleMap;
+    }, {});
+
+    var entryBundles = bundles.filter(function(bundle) {
+        return bundle.type !== 'shared';
+    }).reduce(function(bundleMap, bundle) {
+        var emitter,
+            middleware;
+
+        if (middlewareConfig.lazy) {
+            middleware = function middlewareMemoize(req, res, next) {
+                if (!emitter) {
+                    emitter = watchify.emitter(bundle.bundle, config.watchOptions);
+                    emitter.emit('pending');
+                }
+                return emitter.middleware(req, res, next);
+            };
+            bundleMap[(middlewareConfig.publicPath + bundle.path.replace('\\', '/')).toLowerCase()] = middleware;
+        } else {
+            emitter = watchify.emitter(bundle.bundle, config.watchOptions);
+            bundleMap[(middlewareConfig.publicPath + bundle.path.replace('\\', '/')).toLowerCase()] = emitter.middleware;
+        }
+
+        return bundleMap;
+    }, sharedBundles);
+
+    return function middlewareFn(req, res, next) {
+        var middleware = entryBundles[req.path.toLowerCase()];
+        if (middleware) {
+            middleware(req, res, next);
+        } else {
+            next();
+        }
+    };
+};
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..70a25bc
--- /dev/null
+++ b/package.json
@@ -0,0 +1,30 @@
+{
+  "name": "browserify-builder-middleware",
+  "version": "1.0.0",
+  "description": "Middleware for browserify-builder",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [
+    "browserify-tool",
+    "browserify-builder"
+  ],
+  "author": "Buildium",
+  "license": "MIT",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/buildium/browserify-builder-middleware.git"
+  },
+  "bugs": {
+    "url": "https://github.com/buildium/browserify-builder-middleware/issues"
+  },
+  "homepage": "https://github.com/buildium/browserify-builder-middleware#readme",
+  "peerDependencies": {
+    "browserify-builder": "^1.0.1",
+    "watchify-middleware": "^1.6.0"
+  },
+  "dependencies": {
+    "lodash": "^4.13.1"
+  }
+}