Garbled text before PS1 over SSH? Your OSC sequences are leaking
You SSH into a machine and see garbage like ile://host/home/userurrentDir=/home/user before your prompt. Locally everything is fine. What happened?
Your PROMPT_COMMAND includes an OSC 7 / OSC 1337 sequence that reports the current directory to the terminal emulator. Locally, WezTerm (or iTerm2, etc.) intercepts these invisible escape sequences. Over SSH with TERM=linux, no terminal emulator is listening — the raw bytes print as text.
The fix is a guard condition before wiring __report_cwd into PROMPT_COMMAND:
if [[ -n "${TERM_PROGRAM:-}" || "${TERM:-}" =~ xterm|screen|tmux|wezterm|alacritty ]]; then
[[ ":$PROMPT_COMMAND:" != *__report_cwd* ]] && \
PROMPT_COMMAND="__report_cwd${PROMPT_COMMAND:+; $PROMPT_COMMAND}"
fi
When TERM=linux (plain SSH) and TERM_PROGRAM is empty, the function is skipped entirely. No escape sequences, no garbage.
After deploying the fix, start a fresh shell — PROMPT_COMMAND is already set in the running session and won't be cleared by re-sourcing.