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iiab-tools/android/termux-setup/99_main.sh

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# shellcheck shell=bash
# Module file (no shebang). Bundled by build_bundle.sh
# 0_termux-setupv2.sh
# - Termux bootstrap (packages, wakelock)
# - proot-distro + Debian bootstrap
# - ADB wireless pair/connect via Termux:API notifications (no Shizuku)
# - Optional PPK / phantom-process tweaks (best-effort)
# -------------------------
# Defaults
# -------------------------
STATE_DIR="${HOME}/.iiab-android"
ADB_STATE_DIR="${STATE_DIR}/adbw_pair"
LOG_DIR="${STATE_DIR}/logs"
mkdir -p "$STATE_DIR" "$ADB_STATE_DIR"
HOST="127.0.0.1"
CONNECT_PORT=""
TIMEOUT_SECS=180
CLEANUP_OFFLINE=1
DEBUG=0
RESET_DEBIAN=0
ONLY_CONNECT=0
CHECK_NO_ADB=0
CHECK_SDK=""
CHECK_MON=""
CHECK_PPK=""
# Modes are mutually exclusive (baseline is default)
MODE="baseline" # baseline|with-adb|adb-only|connect-only|ppk-only|check|all
MODE_SET=0
usage() {
cat <<'EOF'
Usage:
./0_termux-setupv2.sh
-> Termux baseline + Debian bootstrap (idempotent). No ADB prompts.
./0_termux-setupv2.sh --with-adb
-> Termux baseline + Debian bootstrap + ADB pair/connect if needed (skips if already connected).
./0_termux-setupv2.sh --adb-only
-> Only ADB pair/connect if needed (no Debian; skips if already connected).
./0_termux-setupv2.sh --connect-only [CONNECT_PORT]
-> Connect-only (no pairing). Use this after the device was already paired before.
./0_termux-setupv2.sh --ppk-only
-> Set PPK only: max_phantom_processes=256 (requires ADB already connected).
Android 14-16 usually achieve this via "Disable child process restrictions" in Developer Options.
./0_termux-setupv2.sh --check
-> Check readiness: developer options flag (if readable),
(Android 14+) "Disable child process restrictions" proxy flag, and (Android 12-13) PPK effective value.
./0_termux-setupv2.sh --all
-> baseline + Debian + ADB pair/connect if needed + (Android 12-13 only) apply --ppk + run --check.
Optional:
--connect-port 41313 (5 digits) Skip CONNECT PORT prompt
--timeout 180 Seconds to wait per prompt
--reset-debian Reset (reinstall) Debian in proot-distro
--no-log Disable logging
--log-file /path/file Write logs to a specific file
--debug Extra logs
Notes:
- ADB prompts require: `pkg install termux-api` + Termux:API app installed + notification permission.
- Wireless debugging must be enabled.
- This script never uses adb root.
EOF
}
trap 'cleanup_notif >/dev/null 2>&1 || true; release_wakelock >/dev/null 2>&1 || true' EXIT INT TERM
# NOTE: Termux:API prompts live in 40_mod_termux_api.sh
# -------------------------
# Self-check
# -------------------------
self_check() {
log "Self-check summary:"
log " Android release=${ANDROID_REL:-?} sdk=${ANDROID_SDK:-?}"
if have proot-distro; then
log " proot-distro: present"
log " proot-distro list:"
proot-distro list 2>/dev/null | sed 's/^/ /' || true
if debian_exists; then ok " Debian: present"; else warn " Debian: not present"; fi
else
warn " proot-distro: not present"
fi
if have adb; then
log " adb: present"
adb devices -l 2>/dev/null | sed 's/^/ /' || true
local serial
if serial="$(adb_pick_loopback_serial 2>/dev/null)"; then
log " adb shell id (first device):"
adb -s "$serial" shell id 2>/dev/null | sed 's/^/ /' || true
fi
else
warn " adb: not present"
fi
if have termux-wake-lock; then ok " Termux:API wakelock: available"; else warn " Termux:API wakelock: not available"; fi
if have termux-notification; then ok " Termux:API notifications: command present"; else warn " Termux:API notifications: missing"; fi
}
final_advice() {
# 1) Android-related warnings (only meaningful if we attempted checks)
local sdk="${CHECK_SDK:-${ANDROID_SDK:-}}"
local adb_connected=0
local serial="" mon="" mon_fflag=""
# Best-effort: detect whether an ADB loopback device is already connected.
# (We do NOT prompt/pair here; we only check current state.)
if have adb; then
adb start-server >/dev/null 2>&1 || true
if adb_pick_loopback_serial >/dev/null 2>&1; then
adb_connected=1
serial="$(adb_pick_loopback_serial 2>/dev/null || true)"
fi
fi
# Baseline safety gate:
# On Android 12-13 (SDK 31-33), IIAB/proot installs can fail if PPK is low (often 32).
# Baseline mode does NOT force ADB pairing nor run check_readiness(), so PPK may be unknown.
# If PPK is not determined, suggest running --all BEFORE telling user to proceed to proot-distro.
if [[ "$MODE" == "baseline" ]]; then
if [[ "$sdk" =~ ^[0-9]+$ ]] && (( sdk >= 31 && sdk <= 33 )); then
# If we didn't run checks, CHECK_PPK will be empty. Even with adb_connected=1, baseline
# still doesn't populate CHECK_PPK unless user ran --check/--all.
if [[ "${CHECK_PPK:-}" != "" && "${CHECK_PPK:-}" =~ ^[0-9]+$ ]]; then
: # PPK determined -> ok to continue with normal advice below
else
warn "Android 12-13: PPK value hasn't been verified (max_phantom_processes may be low, e.g. 32)."
warn "Before starting the IIAB install, run the complete setup so it can apply/check PPK=256; otherwise the installation may fail:"
ok " ./0_termux-setupv2.sh --all"
return 0
fi
elif [[ "$sdk" =~ ^[0-9]+$ ]] && (( sdk >= 34 )); then
# On Android 14+, rely on "Disable child process restrictions"
# Proxy signals: settings_enable_monitor_phantom_procs (or the fflag override).
# Baseline does not run check_readiness(), so CHECK_MON is usually empty.
if [[ "${CHECK_MON:-}" == "false" ]]; then
: # Verified OK (rare in baseline) -> continue
else
# If ADB is already connected, try to read the flag best-effort (no prompts).
if [[ "$adb_connected" -eq 1 && -n "${serial:-}" ]]; then
mon_fflag="$(adb_get_child_restrictions_flag "$serial")"
if [[ "$mon_fflag" == "true" || "$mon_fflag" == "false" ]]; then
mon="$mon_fflag"
else
mon="$(adb -s "$serial" shell settings get global settings_enable_monitor_phantom_procs 2>/dev/null | tr -d '\r' || true)"
fi
fi
if [[ "${mon:-}" == "false" ]]; then
: # Restrictions already disabled -> ok to continue
else
if [[ "${mon:-}" == "true" ]]; then
warn "Android 14+: child process restrictions appear ENABLED (monitor=true)."
else
warn "Android 14+: child process restrictions haven't been verified (monitor flag unreadable/unknown)."
fi
warn "Before starting the IIAB install, run the complete setup (--all) so it can guide you to verify such setting; otherwise the installation may fail:"
ok " ./0_termux-setupv2.sh --all"
return 0
fi
fi
fi
fi
if [[ "${CHECK_NO_ADB:-0}" -eq 1 ]]; then
# If we could not check, still warn on A12-13 because PPK is critical there
if [[ "$sdk" =~ ^[0-9]+$ ]] && (( sdk >= 31 && sdk <= 33 )); then
warn "A12-13: verify PPK=256 before installing IIAB."
fi
else
# A14+ child restrictions proxy (only if readable)
if [[ "$sdk" =~ ^[0-9]+$ ]] && (( sdk >= 34 )) && [[ "${CHECK_MON:-}" == "true" ]]; then
warn "A14+: disable child process restrictions before installing IIAB."
fi
# Only warn about PPK on A12-13 (A14+ uses child restrictions)
if [[ "$sdk" =~ ^[0-9]+$ ]] && (( sdk >= 31 && sdk <= 33 )); then
if [[ "${CHECK_PPK:-}" =~ ^[0-9]+$ ]] && (( CHECK_PPK < 256 )); then
warn "PPK is low (${CHECK_PPK}); consider --ppk-only."
fi
fi
fi
# 2) Debian “next step” should only be shown for modes that actually bootstrap Debian
case "$MODE" in
baseline|with-adb|all)
if debian_exists; then
ok "Next: proot-distro login debian"
else
warn "Debian not present. Run: proot-distro install debian"
fi
;;
*)
# adb-only/connect-only/ppk-only/check: do not suggest Debian login as a generic ending
;;
esac
}
# -------------------------
# Args
# -------------------------
set_mode() {
local new="$1"
if [[ "$MODE_SET" -eq 1 ]]; then
die "Modes are mutually exclusive. Already set: --${MODE}. Tried: --${new}"
fi
MODE="$new"
MODE_SET=1
}
while [[ $# -gt 0 ]]; do
case "$1" in
--with-adb) set_mode "with-adb"; shift ;;
--adb-only) set_mode "adb-only"; shift ;;
--connect-only)
set_mode "connect-only"
ONLY_CONNECT=1
# Optional positional port (5 digits)
if [[ "${2:-}" =~ ^[0-9]{5}$ ]]; then
CONNECT_PORT="$2"
shift 2
else
shift
fi
;;
--ppk-only) set_mode "ppk-only"; shift ;;
--check) set_mode "check"; shift ;;
--all) set_mode "all"; shift ;;
--connect-port) CONNECT_PORT="${2:-}"; shift 2 ;;
--timeout) TIMEOUT_SECS="${2:-180}"; shift 2 ;;
--host) HOST="${2:-127.0.0.1}"; shift 2 ;;
--reset-debian|--clean-debian) RESET_DEBIAN=1; shift ;;
--no-log) LOG_ENABLED=0; shift ;;
--log-file) LOG_FILE="${2:-}"; shift 2 ;;
--debug) DEBUG=1; shift ;;
-h|--help) usage; exit 0 ;;
*) shift ;;
esac
done
# -------------------------
# Main flows
# -------------------------
main() {
setup_logging "$@"
sanitize_timeout
acquire_wakelock
case "$MODE" in
baseline)
step_termux_repo_select_once
step_termux_base
step_debian_bootstrap_default
;;
with-adb)
step_termux_repo_select_once
step_termux_base
step_debian_bootstrap_default
adb_pair_connect_if_needed
;;
adb-only)
step_termux_base
adb_pair_connect_if_needed
;;
connect-only)
step_termux_base
adb_pair_connect
;;
ppk-only)
# No baseline, no Debian. Requires adb already available + connected.
require_adb_connected || exit 1
ppk_fix_via_adb || true
;;
check)
step_termux_base
check_readiness || true
;;
all)
step_termux_repo_select_once
step_termux_base
step_debian_bootstrap_default
adb_pair_connect_if_needed
# Android 12-13 only (SDK 31-33): apply PPK tuning automatically
if [[ "${ANDROID_SDK:-}" =~ ^[0-9]+$ ]] && (( ANDROID_SDK >= 31 && ANDROID_SDK <= 33 )); then
log "Android SDK=${ANDROID_SDK} detected -> applying --ppk automatically (12-13 rule)."
ppk_fix_via_adb || true
else
log "Android SDK=${ANDROID_SDK:-?} -> skipping auto-PPK (only for Android 12-13)."
fi
check_readiness || true
;;
*)
die "Unknown MODE='$MODE'"
;;
esac
self_check
ok "0_termux-setupv2.sh completed (mode=$MODE)."
log "---- Mode list ----"
log "Connect-only: --connect-only [PORT]"
log "Pair+connect: --adb-only"
log "Check: --check"
log "Apply PPK: --ppk-only"
log "Base+Debian+Pair+connect: --with-adb"
log "Full run: --all"
log "Reset Debian: --reset-debian"
log "-------------------"
final_advice
}
main "$@"
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