tea repo sync ran git switch on the synced branch, so syncing main while
on experiment left the user on main. A branch that is not checked out now
moves with update-ref, guarded by its old value; the checked-out branch
merges with --ff-only and needs a clean working tree; a missing branch is
created and set to track the remote. Diverged branches stay untouched.
Sync reports "✓ Synced main from origin/main (fast-forward a..b)" on a
terminal, "already up to date" when nothing changed, and the JSON result
gains the previous commit. Outside a clone, or without a remote for the
repository, the errors now name repo sync instead of checkout.
Signed-off-by: bircni <bircni@icloud.com>
- `internal/auth`: credentials in the OS keyring or a private file, OAuth login with token refresh, SSH HTTP-signature signers (key files with passphrase prompt, ssh-agent keys and certificates), and the Git credential helper protocol.
- `internal/git`: cancellable Git subprocesses, repository and remote discovery (tracked remote via `branch.<name>.remote`), PR checkout by full ref, AGit push, branch cleanup.
Nothing imports these packages yet.
Reviewed-on: https://gitea.com/gitea/tea/pulls/1123
Reviewed-by: TheFox0x7 <95654+thefox0x7@noreply.gitea.com>