Manual baseline profile fallback snippet for Android app startup article

manual-baseline-profile-fallback.sh

#!/usr/bin/env bash
set -euo pipefail

PKG="dev.jamescullimore.app"
ACTIVITY="dev.jamescullimore.app/.MainActivity"
RECEIVER="dev.jamescullimore.app/androidx.profileinstaller.ProfileInstallReceiver"
REMOTE_PROFILE="/data/misc/profman/${PKG}-primary.prof.txt"

run_scenario() {
  local onboarding="$1"
  adb shell am start -S -W -n "$ACTIVITY" --ez perf_onboarding_done "$onboarding" >/dev/null
  sleep 5
  adb shell am broadcast -a androidx.profileinstaller.action.SAVE_PROFILE "$RECEIVER" >/dev/null
}

run_scenario false
run_scenario true

adb shell pm dump-profiles --dump-classes-and-methods "$PKG" >/dev/null
adb exec-out cat "$REMOTE_PROFILE" >/tmp/app-baseline-raw.prof.txt
python3 scripts/filter_baseline_profile.py /tmp/app-baseline-raw.prof.txt app/src/main/baseline-prof.txt