self-healing-autopoietic-shell/contrib/fx/sources.d/50-thefuck.sh

#!/bin/sh
# thefuck bridge: only fires if thefuck is installed. Note that thefuck
# --yes decides *and executes* its own suggestion, so by the time this
# candidate is shown it may have already run once via thefuck -- treat
# it as informational, not a dry-run.
#
# Wrapped in `timeout`: thefuck has no fast-fail path when no rule
# matches -- fuzz-testing this source found it hanging past 3s on a
# majority of unmatched inputs (well beyond its own ~325ms best-case
# startup cost measured earlier). Every other source in this directory
# either runs in single-digit milliseconds or is itself already
# timeout-wrapped (70/80's HTTP calls); this one wasn't, so a single
# bad input could block the whole fx() pipeline indefinitely. Capped
# at 5s -- generous enough for a real correction (~2.8s measured
# earlier for the git-push case) without being unbounded.
command -v thefuck >/dev/null 2>&1 || exit 0
command -v timeout >/dev/null 2>&1 || exit 0
cmd="$1"
[ -n "$cmd" ] || exit 0
timeout 5 thefuck --yes "$cmd" 2>/dev/null | tr -d '\342\200\213' | tail -1