Fetch remote entire/sessions branch when doing resume

[Soph]

Right now when doing entire resume soph/track-session-position then it might tell you that you need to fetch entire/sessions manually. Let's just do this automatically.

Also if we encounter an error during resume let's print the error only and not also the usage of the command which wouldn't be helpful if the error is not related to passed in params.

[Copilot]

Copilot encountered an error and was unable to review this pull request. You can try again by re-requesting a review.

[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

The force parameter should be propagated from the caller instead of being hard-coded to false. The checkRemoteMetadata function is called from resumeFromCurrentBranch which has access to the force flag. When users run resume --force, they expect to skip all confirmation prompts, but this hard-coded false would still trigger prompts during session restoration. Consider adding a force parameter to checkRemoteMetadata and passing it through to resumeSession.

[gtrrz-victor]

I hit this error while trying these changes:

entire resume soph/fetch-sessions-if-needed-during-resume
Fetching session metadata from origin...
Failed to fetch metadata: failed to fetch entire/sessions from origin: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none publickey], no supported methods remain
You can try manually: git fetch origin entire/sessions:entire/sessions

Then I found that this is a known issue with go-git: go-git/go-git#411
I added instructions to our README.md to run:

ssh-keyscan -t rsa github.com > ~/.ssh/known_hosts
ssh-keyscan -t ecdsa github.com >> ~/.ssh/known_hosts

That fixed the go-git error.