deploy-to-target.sh rsyncs with --delete to TARGET_DIR=/home/archipelago/archy,
which is a symlink to /home/archipelago/Projects/archy. archi-dev-box is this
same machine over loopback SSH, so deploying from the main checkout is a no-op
(source and destination resolve identically) — but deploying from a git worktree
nested under it mirrored that worktree onto the main checkout and deleted
everything else: ~1810 tracked files, the deploying worktree itself mid-run, a
running dev server, and two concurrent sessions' uncommitted work.
Guard compares /etc/machine-id across the SSH hop and, when source and
destination are on the same host, refuses if either path contains the other.
Identical paths still pass, so normal local deploys are unaffected.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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