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fix(web-install): don't hang after 'delegating' in interactive curl|bash
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Browse source 
curl|bash makes bash read THIS script byte-by-byte from the pipe. A bare
`exec < /dev/tty` swapped stdin, then bash tried to read the NEXT line (the
`exec ./bootstrap.sh`) from the keyboard → infinite hang after "delegating to
bootstrap.sh", bootstrap never started, no profile/language menu.

Fix: merge the redirect INTO the bootstrap exec (one command), so the process
is replaced the instant stdin is swapped and bash never reads another script
byte from the (now-wrong) stdin. Verified: piped-under-pty buggy=HANG,
fixed=bootstrap starts with stdin=tty.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
KeiSei84 2026-05-22 10:58:44 +08:00
parent 01d5aa510f
commit 15d50f1478
1 changed files with 11 additions and 7 deletions
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18
web-install.sh
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@ -91,16 +91,20 @@ say "delegating to $KEISEI_ROOT/bootstrap.sh ${PASS_THROUGH[*]:-}"
cd "$KEISEI_ROOT" cd "$KEISEI_ROOT"
# curl|bash сценарий: stdin = pipe от curl, поэтому wizard'у read нечего читать. # curl|bash сценарий: stdin = pipe от curl, поэтому wizard'у read нечего читать.
# Если /dev/tty реально ОТКРЫВАЕТСЯ (сессия интерактивная), переподключаем stdin # Если /dev/tty реально ОТКРЫВАЕТСЯ (сессия интерактивная), запускаем bootstrap
# к терминалу — иначе onboarding/whiptail падают на первом prompt. # со stdin = терминал — иначе onboarding/whiptail падают на первом prompt.
# ВАЖНО: `[ -r /dev/tty ]` недостаточно — путь может stat'иться readable, но # ВАЖНО #1: `[ -r /dev/tty ]` недостаточно — путь может stat'иться readable, но
# `exec < /dev/tty` падает с "No such device or address" когда нет управляющего # `exec < /dev/tty` падает с "No such device or address" когда нет управляющего
# терминала (ssh non-interactive, CI, cron). Поэтому пробуем реально открыть его # терминала (ssh non-interactive, CI, cron). Поэтому пробуем реально открыть его
# через `{ : < /dev/tty; }` и реаттачим ТОЛЬКО при успехе. Иначе установка идёт # через `{ : < /dev/tty; }` и реаттачим ТОЛЬКО при успехе.
# неинтерактивно (рассчитано на --yes / KEISEI_SKIP_ONBOARD). # ВАЖНО #2: bash читает ЭТОТ скрипт из трубы curl ПОБАЙТНО. Отдельный
# audit 2026-05-18 bug #4; non-TTY e2e fix 2026-05-21. # `exec < /dev/tty` заставил бы bash читать СЛЕДУЮЩУЮ строку (сам запуск
# bootstrap) уже с клавиатуры → вечный висяк после "delegating". Поэтому редирект
# и exec ОБЯЗАНЫ быть ОДНОЙ командой: подменили stdin и сразу заменили процесс —
# bash больше не читает ни байта скрипта из (уже не той) трубы.
# audit 2026-05-18 bug #4; non-TTY e2e fix 2026-05-21; curl|bash hang fix 2026-05-22.
if [ ! -t 0 ] && { : < /dev/tty; } 2>/dev/null; then if [ ! -t 0 ] && { : < /dev/tty; } 2>/dev/null; then
exec < /dev/tty exec ./bootstrap.sh "${PASS_THROUGH[@]}" < /dev/tty
fi fi
exec ./bootstrap.sh "${PASS_THROUGH[@]}" exec ./bootstrap.sh "${PASS_THROUGH[@]}"