From a78a05f9b4f40dd223d85da42887dcf8e546a45e Mon Sep 17 00:00:00 2001
From: Zak Barbuto <zbarbuto@nextfaze.com>
Date: Thu, 14 Sep 2017 09:34:25 +0930
Subject: [PATCH] Ignore source maps in boot

---
 lib/utils.js          |  6 ++++++
 test/compiler.test.js | 22 ++++++++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/lib/utils.js b/lib/utils.js
index 0035183..56dad1f 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -102,6 +102,12 @@ function getExcludedExtensions() {
   return {
     '.json': '.json',
     '.node': 'node',
+   /**
+     * This is a temporary workaround for #246
+     * See discussion here for full description of the underlying issue
+     * https://github.com/strongloop/loopback-boot/pull/245#issuecomment-311052798
+     */
+    '.map': 'map',
   };
 }
 
diff --git a/test/compiler.test.js b/test/compiler.test.js
index efd4655..47d94a9 100644
--- a/test/compiler.test.js
+++ b/test/compiler.test.js
@@ -2632,6 +2632,28 @@ describe('compiler', function() {
         });
       });
 
+    it('ignores sourcmap files when loading middleware',
+    function(done) {
+      var middleware = appdir.writeFileSync('my-middleware.js',
+        '// I am the middleware');
+      var sourcemap = appdir.writeFileSync('my-middleware.js.map',
+        '// I am a sourcemap');
+      appdir.writeConfigFileSync('middleware.json', {
+        'routes': {
+          './my-middleware': {},
+        },
+      });
+
+      boot.compile(appdir.PATH, function(err, context) {
+        if (err) return done(err);
+        var instructions = context.instructions;
+
+        expect(instructions.middleware.middleware[0]).have.property(
+          'sourceFile', middleware);
+        done();
+      });
+    });
+
     describe('config with relative paths in params', function() {
       var RELATIVE_PATH_PARAMS = [
         '$!./here',