react-native/scripts/validate-android-device-env.sh

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#!/bin/bash
# This script validates that the Android environment is set up to run
# tests on a device or emulator (as opposed to a plain Java environment).
# This requires that the Android NDK is set up correctly and it also
# requires that you are currently either running an emulator or have
# an Android device plugged in.
if [ -z "$ANDROID_NDK" ]; then
echo "Error: \$ANDROID_NDK is not configured."
echo "You must first install the Android NDK and then set \$ANDROID_NDK."
echo "If you already installed the Android SDK, well, the NDK is a different thing that you also need to install."
echo "See https://facebook.github.io/react-native/docs/android-building-from-source.html for instructions."
exit 1
fi
if [ -z "$(adb get-state)" ]; then
echo "Error: you must either run an emulator or connect a device."
echo "You can check what devices are running with 'adb get-state'."
echo "You can run scripts/run-android-emulator.sh to get a known-good emulator config."
exit 1
fi
while :
do
BOOTANIM=`adb -e shell getprop init.svc.bootanim`
if [ -n `echo $BOOTANIM | grep stopped` ]; then
break
fi
echo "Waiting for the emulator to finish booting..."
sleep 3
done