Minified js stemmers not included in the pypi distribution 3.5.0

[heitorPB]

Describe the bug
Updated Sphinx to 3.5.0 and got a warning (treated as error with SPHINXOPTS="-W" make html) that FileNotFoundError: [Errno 2] No such file or directory: 'venv/lib/python3.9/site-packages/sphinx/search/minified-js/base-stemmer.js'

Downgrading to sphinx 3.4.3 fixes the problem.

To Reproduce
Steps to reproduce the behavior:

$ git clone https://github.com/grupy-sanca/curso-python
$ cd curso-python
$ virtualenv venv && source venv/bin/activate
$ pip install -r requirements.txt
$ make html SPHINXOPTS="-WT"

[ommited checks]

Traceback (most recent call last):
  File "/home/h/projects/curso-python-intro-plus/venv/lib/python3.9/site-packages/sphinx/builders/html/__init__.py", line 806, in copy_static_files
    context.update(self.indexer.context_for_searchtool())
  File "/home/h/projects/curso-python-intro-plus/venv/lib/python3.9/site-packages/sphinx/search/__init__.py", line 442, in context_for_searchtool
    'search_language_stemming_code': self.get_js_stemmer_code(),
  File "/home/h/projects/curso-python-intro-plus/venv/lib/python3.9/site-packages/sphinx/search/__init__.py", line 465, in get_js_stemmer_code
    with open(path.join(js_dir, 'base-stemmer.js')) as js_file:
FileNotFoundError: [Errno 2] No such file or directory: '/home/h/projects/curso-python-intro-plus/venv/lib/python3.9/site-packages/sphinx/search/minified-js/base-stemmer.js'

Expected behavior
No warning/error on Sphinx js files.

Environment info

• OS: ArchLinux
• Python version: 3.9
• Sphinx version: 3.5.0
• Sphinx extensions: sphinxcontrib-spelling

[heitorPB]

curiously, on sphinx 3.4.3 there's no warning/error, but those minified files also don't exist.

[mitya57]

It was my change which broke this — so sorry for the inconvenience. I created PR #8886 to fix this.

[heitorPB]

Thanks for fixing it quickly! Do you think it is possible to release 3.5.1 with this fix soon? I'm not sure how/if this bug affects other projects

[mitya57]

Do you think it is possible to release 3.5.1 with this fix soon?

I am not a project member, just a contributor, so that's a question to @tk0miya.

[tk0miya]

Now I merged the fix. And I'll take a look at other reports for 3.5.0 from now on. So please wait a moment.
Thank you for reporting.

[heitorPB]

Thanks for fixing it!
Have a nice week