#!/bin/bash
# ------------------------------------------------------------------
#  Yocto Repo Refresh & Rebuild Script
#  Safely re-syncs all repositories to the latest manifest version
#  while preserving downloads and removing stale build outputs.
# ------------------------------------------------------------------

set -e

# --- CONFIGURATION -------------------------------------------------
# Adjust these if needed
BUILD_DIR="leahi-distro"         # your build directory
IMAGE="ely-image-qt"             # your main image name
NUM_JOBS=$(nproc)                # number of parallel jobs

# --- STEP 1: Confirm manifest is initialized -----------------------
echo "🔹 Ensuring repo manifest is initialized..."
if [ ! -d .repo ]; then
    echo "❌ No .repo directory found. Run 'repo init -u <manifest-url> -b <branch>' first."
    exit 1
fi

# --- STEP 2: Sync all sources -------------------------------------
echo "🔹 Syncing all repositories..."
repo sync -j${NUM_JOBS} --force-sync --fetch-submodules --prune

# --- STEP 3: Clean stale build output but keep downloads ----------
if [ -d "${BUILD_DIR}/tmp" ]; then
    echo "🧹 Cleaning tmp directory (but keeping downloads/ and sstate-cache/)..."
    rm -rf "${BUILD_DIR}/tmp"
fi

# Optional: uncomment this if you want to clean sstate too
# rm -rf "${BUILD_DIR}/sstate-cache"

# --- STEP 4: Reset all repos to manifest HEAD ---------------------
echo "🔹 Resetting repos to manifest HEAD..."
repo forall -c 'echo "→ $REPO_PATH"; git reset --hard HEAD; git clean -fdx'

# --- STEP 5: Rebuild image ----------------------------------------
echo "🚀 Starting new build..."
source ely-setup-environment ${BUILD_DIR}
bitbake -c cleansstate virtual/kernel
bitbake ${IMAGE}

echo "✅ Build complete: ${IMAGE}"