Issue12/git clone timeout

[andrewfulton9]

Reference Issues or PRs

Closes #12

Adds a configurable timeout for git clone

What does this implement/fix?

Put a x in the boxes that apply

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds a feature)
• Breaking change (fix or feature that would cause existing features not to work as expected)
• Documentation Update
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no API changes)
• Build related changes
• Other (please describe):

Testing

Adds a test to ensure git clone timeout raises an error.

• Did you test the pull request locally?
• Did you add new tests?

Documentation

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Any other comments?

I am not able to actually stop the thread running the git pull, so instead I just unblock the main thread on timeout. This means that the repo may still finish cloning even after the timeout. I tried to make it so that the status bar with the error message would go away if the repo is cloned despite the timeout, but it appears the fileChanged signal isn't triggered from the clone operation despite the the new folder being created. Is there another way to determine if the new folder is created? I think this may be related to #46. add the filesystem change isn't coming from within the filebrowser context

[github-actions]

👈 Launch a Binder on branch andrewfulton9/jupyterlab-gallery/issue12/git_clone_timeout

[andrewfulton9]

The odd-cases ui-test appears to be flaky. Sometimes it passes, sometimes the Private Repository image fails to load so I get this:

I imagine that the tests will often have to be updated to account for new stats for things like stars, contributers ect. of the example github repos in some of the gallery items.

[andrewfulton9]

@krassowski, Could you give this a review when you get a chance?