`develop` and `build` creating full path to directory as subdirectory

[craveytrain]

Description

When running gatsby develop or gatsby build, it builds out the entire path to the the directory I'm in as subdirectories. E.g.:
While in /Users/mcravey/Projects/craveytrain.com, running gatsby develop will create a directories /Users/mcravey/Projects/craveytrain.com resulting in a path of /Users/mcravey/Projects/craveytrain.com/Users/mcravey/Projects/craveytrain.com.

This also results the dev server not able to find the files.

Steps to reproduce

just running gatsby develop or gatsby build. This is true if I run gatsby develop using the global cli, or if I run npx gatsby develop (or use npm scripts).

Expected result

Weird subdirectory shouldn't exist and server should work as expected.

Actual result

While in /Users/mcravey/Projects/craveytrain.com, running gatsby develop will create a directories /Users/mcravey/Projects/craveytrain.com resulting in a path of /Users/mcravey/Projects/craveytrain.com/Users/mcravey/Projects/craveytrain.com.

This also results the dev server not able to find the files.

Environment

• Gatsby version (npm list gatsby): 1.9.265
• gatsby-cli version (gatsby --version): 1.1.56
• Node.js version: v10.2.1
• Operating System: MacOS 10.13.4

I have created a branch where I can reproduce the issue as this does not appear to be an issue in my master branch:
https://github.com/craveytrain/craveytrain.com/compare/upgrade-deps

Incidentally,

File contents (if changed)

gatsby-config.js: N/A
package.json: N/A
gatsby-node.js: N/A
gatsby-browser.js: N/A
gatsby-ssr.js: N/A

[craveytrain]

I think this is related to #5636.

[craveytrain]

Closing this as a dupe.