scripts/boot-emulator: update for API 26 rework

scripts/boot-emulator.sh

@@ -1,29 +1,33 @@
 #!/usr/bin/env bash
 
-# Boots an emulator that exactly matches the one in our CI. It is recommended
-# to use this as the target device for android tests.
+# Creates and boots a display-less emulator (defaulting to Android 8.1, our min SDK)
 
 set -euo pipefail
 
-[ -n "${ANDROID_SDK_ROOT:-}" ] || {
-  echo "ANDROID_SDK_ROOT must be set to use this script"
-  exit
-  1
+[ -n "${ANDROID_HOME:-}" ] || {
+  echo "ANDROID_HOME must be set to use this script"
+  exit 1
 }
-[ -n "${ANDROID_API_LEVEL:-}" ] || { echo "ANDROID_API_LEVEL not defined; defaulting to 30"; }
 
-API_LEVEL="${ANDROID_API_LEVEL:-30}"
+[ -n "${ANDROID_API_LEVEL:-}" ] || { echo "ANDROID_API_LEVEL not defined; defaulting to 26"; }
+API_LEVEL="${ANDROID_API_LEVEL:-26}"
 
-echo no | "${ANDROID_SDK_ROOT}"/cmdline-tools/latest/bin/avdmanager create avd \
+ARCH="x86_64"
+if [[ "$(uname -m)" == "arm64" && "$(uname)" == "Darwin" ]]; then
+  ARCH="arm64-v8a"
+fi
+
+sdkmanager "system-images;android-${API_LEVEL};google_apis;${ARCH}"
+
+echo no | "${ANDROID_HOME}"/cmdline-tools/latest/bin/avdmanager create avd \
   --force \
   -n "Pixel_XL_API_${API_LEVEL}" \
-  --abi 'google_apis/x86' \
-  --package "system-images;android-${API_LEVEL};google_apis;x86" \
+  --abi "google_apis/${ARCH}" \
+  --package "system-images;android-${API_LEVEL};google_apis;${ARCH}" \
   --device 'pixel_xl'
 
-"${ANDROID_SDK_ROOT}"/emulator/emulator \
+"${ANDROID_HOME}"/emulator/emulator \
   -avd "Pixel_XL_API_${API_LEVEL}" \
+  -gpu 'swiftshader_indirect' \
   -no-window \
-  -gpu swiftshader_indirect \
-  -noaudio \
-  -no-boot-anim
+  -noaudio