From 741434eb27f9c8b05b3f67d5c6f05209c6de3fdf Mon Sep 17 00:00:00 2001
From: Fabian Schultz <desk@fabianschultz.com>
Date: Thu, 19 Jul 2018 18:53:36 -0400
Subject: [PATCH] Add warning for relative paths in source-filesystem. (#6563)

* Add warning for relative paths in source-filesystem.

* Fix path instead of warning.
---
 src/gatsby-node.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/gatsby-node.js b/src/gatsby-node.js
index 2ee0c869a338a..fe68f08d80a67 100644
--- a/src/gatsby-node.js
+++ b/src/gatsby-node.js
@@ -1,5 +1,6 @@
 const chokidar = require(`chokidar`)
 const fs = require(`fs`)
+const path = require(`path`)
 const { Machine } = require(`xstate`)
 
 const { createFileNode } = require(`./create-file-node`)
@@ -86,6 +87,12 @@ See docs here - https://www.gatsbyjs.org/packages/gatsby-source-filesystem/
       `)
   }
 
+  // Validate that the path is absolute.
+  // Absolute paths are required to resolve images correctly.
+  if (!path.isAbsolute(pluginOptions.path)) {
+    pluginOptions.path = path.resolve(process.cwd(), pluginOptions.path)
+  }
+
   const fsMachine = createFSMachine()
   let currentState = fsMachine.initialState
   let fileNodeQueue = new Map()