EditUrl doesn't support sub-directories.

[dws-sam]

🐛 Bug Report

The edit buttons on the top of pages within sub-directories do not point to the appropriate edit URL on Github. The edit button points to 'editUrl+{fileName}'. Pages within directories within the docs/ folder should point to 'editUrl+{relativeFilePath}+{fileName}'.

(Also it's worth pointing out that custom_edit_url documented here also doesn't work).

Have you read the Contributing Guidelines on issues?

Yes.

To Reproduce

1. Get any Docusaurus project with pages in sub-directories of docs/ (should have an editUrl value set).
2. Press the EDIT button at the top of the page of a file within a sub-directory of docs/.
3. Check to see if the tail of the URL includes the sub-directory path or just has the filename.

Expected behavior

The URL should be a concatenation of editUrl + the filepath to the file from docs/ + the filename.

Actual Behavior

The URL is a concatenation of editUrl and the filename, regardless of directory nesting.

E.g a file ../docs/learn/introduction.md should point to {editUrl}+learn/introduction.md. Instead it points to {editUrl}+introduction.md.

Reproducible Demo

You can clone our project here and/or replicate by following these steps:

git clone https://github.com/dwstech/muster.git
cd muster/packages/website/
yarn
yarn run start

Navigate to Learn/Introduction and press EDIT at the top.

You are taken to https://github.com/dwstech/muster/edit/develop/packages/website/docs/01-intro-to-muster.md
You should be taken to https://github.com/dwstech/muster/edit/develop/packages/website/docs/learn/01-intro-to-muster.md

For example, most of our documentation for is in sub directories:

Docs
├── overview.md
├── learn
│   ├── 01-intro-to-muster.md
│   ├── 02-graph-data-structure.md
...
├── resources
│   ├── 01-setup.md
│   ├── 03-faq.md
...

The editUrl in siteConfig.js is set but because only the filename is concatenated the EDIT button only works correctly for overview.md.