From 0b314960aa34c71fc731bac9c1f2b48f3223c5cb Mon Sep 17 00:00:00 2001
From: Gary Borton <gary.borton@airbnb.com>
Date: Fri, 9 Nov 2018 05:49:04 -0800
Subject: [PATCH] Adds support for `publicPath` to enable serving assets from
 different locations. (#299)

Summary:
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**Summary**

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This is an updated followup from https://github.com/facebook/metro/pull/280, which we would still need to address the following assumptions about `/assets/`:

https://github.com/facebook/metro/blob/e7deea19001d903a47868bb1fe6456bdc4b585e7/packages/metro/src/Server.js#L332

https://github.com/facebook/metro/blob/e7deea19001d903a47868bb1fe6456bdc4b585e7/packages/metro/src/Server.js#L379

https://github.com/facebook/metro/blob/e7deea19001d903a47868bb1fe6456bdc4b585e7/packages/metro/src/Server.js#L385

As pointed out by gdborton, there isn't currently a way to make this a configurable option. I am not certain how to find a proper workaround for `processRequest`.

We found a temporary solution to have our express app pick up serving the assets from a publicPath as a middleware. But the change in this PR is still necessary to get it working fully.

**Test plan**

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- Will add tests once we figure out a comprehensive solution
Pull Request resolved: https://github.com/facebook/metro/pull/299

Reviewed By: rafeca

Differential Revision: D12939229

Pulled By: mjesun

fbshipit-source-id: 769c23468c5ac434f8319e5e7caaf46dd6453f2d
---
 jest/preprocessor.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/jest/preprocessor.js b/jest/preprocessor.js
index 320c8bb76..86397a6fa 100644
--- a/jest/preprocessor.js
+++ b/jest/preprocessor.js
@@ -59,6 +59,7 @@ module.exports = {
         minify: false,
         platform: '',
         projectRoot: '',
+        publicPath: '/assets',
         retainLines: true,
         sourceType: 'unambiguous', // b7 required. detects module vs script mode
       },