How to change a git submodule to point to a subfolder?

I’m afraid the URL for submodules always just points to the repository – you can’t specify that you only want a subfolder of a repository, in the same way that git doesn’t support “narrow clones” in general.

If you can’t live with having the whole repository as a submodule, you could always create a new repository that’s cloned from boto and then set up a cron job to:

  1. git fetch that repository into a directory
  2. Use git filter-branch to update a branch where the subdirectory is at the top level.
  3. Add that branch of the repository as the submodule. However, that’s all a bit fiddly and my preference would just be to live with having the whole repository as a submodule.

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