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emu: Stop silent early exits in the emulator start script

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The script's set -euo pipefail made it die without any visible error in
two places: an empty /tmp/jtube-adbkeys/ failed the glob cat (the error
itself was discarded, so the output just stopped mid-script — this hits
any host after a reboot), and the boot-wait loop was killed on its first
iteration because adb exits non-zero while the device is still booting.
Both were swallowing the whole && chain (adb connect, scrcpy), making it
look like the emulator was broken when it was fine or about to be.

The stale bridge-emulator.sh duplicate (different port, broken vendor
keys path) is removed in the same spirit — keeping it invites running
the wrong script. Docs updated to match the one script.
This commit is contained in:
Jeena 2026-10-13 08:14:15 +09:00
parent c19024355c
commit a71de07969
3 changed files with 22 additions and 49 deletions
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20
scripts/start-emulator.sh
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@ -62,11 +62,13 @@ if [ "$MODE" = windowed ]; then
else
echo "JTUBE_EMU_MODE=windowed but no display detected — falling back to headless"
WINDOWED=0
ACCEL+=(-no-window)
ACCEL+=(-no-window -gpu swiftshader_indirect)
fi
else
WINDOWED=0
ACCEL+=(-no-window)
# Headless has no X display, so -gpu host/GLX can't init EGL ("Failed to get EGL
# display") and the emulator dies on launch — fall back to software rendering.
ACCEL+=(-no-window -gpu swiftshader_indirect)
echo "headless (default; JTUBE_EMU_MODE=windowed for a window) — no emulator window"
fi
if [ -e /dev/kvm ]; then
@ -79,21 +81,27 @@ fi
# blocked, so remote keys are trusted via ADB_VENDOR_KEYS at launch instead.
# Drop extra public keys into /tmp/jtube-adbkeys/ (one per file), e.g. from the
# agent container: docker exec <ctr> sh -c 'cat ~/.android/adbkey.pub' > /tmp/jtube-adbkeys/agent-container.pub
mkdir -p /tmp/jtube-adbkeys
VKEYS=/tmp/jtube-adbkeys-combined
{
cat "$HOME/.android/adbkey.pub"
cat /tmp/jtube-adbkeys/*.pub 2>/dev/null
# Optional extra keys — must not fail the script under `set -e` when absent.
shopt -s nullglob
for k in /tmp/jtube-adbkeys/*.pub; do cat "$k"; done
shopt -u nullglob
} > "$VKEYS"
chmod 600 "$VKEYS"
echo "Booting AVD '$AVD' …"
ADB_VENDOR_KEYS="$VKEYS" setsid nohup "$EMU" -avd "$AVD" -port "$PORT" -gpu host "${ACCEL[@]:-}" \
ADB_VENDOR_KEYS="$VKEYS" setsid nohup "$EMU" -avd "$AVD" -port "$PORT" "${ACCEL[@]:-}" \
-no-snapshot > /tmp/jtube-emu.log 2>&1 < /dev/null &
echo "emulator PID $! — log: /tmp/jtube-emu.log"
for i in $(seq 1 90); do
ok=$("$ADB" -s "emulator-$PORT" shell getprop sys.boot_completed 2>/dev/null | tr -d '\r')
[ "$ok" = "1" ] && { echo "BOOTED"; break; }
# adb exits non-zero while the device is still booting — don't let
# pipefail+set -e kill the wait loop.
ok=$( ("$ADB" -s "emulator-$PORT" shell getprop sys.boot_completed 2>/dev/null || true) | tr -d '\r')
if [ "$ok" = "1" ]; then echo "BOOTED"; break; fi
sleep 5
done