Initial commit: Android ROM building with Buildkite

- Added Buildkite pipeline configuration
- Added Docker setup for Android build environment
- Added build scripts for ROM compilation
- Added comprehensive documentation
- Added setup script for easy initialization

scripts/build-rom.sh

@@ -0,0 +1,65 @@
+#!/bin/bash
+set -euo pipefail
+
+echo "🔨 Starting Android ROM build..."
+
+cd /home/buildbot/android/source
+
+# Configuration - modify these for your target device
+TARGET_DEVICE="${TARGET_DEVICE:-generic}"
+BUILD_TYPE="${BUILD_TYPE:-userdebug}"
+BUILD_VARIANT="${BUILD_VARIANT:-lineage}"
+
+echo "🎯 Build configuration:"
+echo "  Device: $TARGET_DEVICE"
+echo "  Type: $BUILD_TYPE" 
+echo "  Variant: $BUILD_VARIANT"
+
+# Set up build environment
+echo "⚙️ Setting up build environment..."
+source build/envsetup.sh
+
+# Setup ccache
+if [ "${USE_CCACHE:-1}" = "1" ]; then
+    echo "🚀 Configuring ccache..."
+    export USE_CCACHE=1
+    export CCACHE_DIR=/home/buildbot/android/ccache
+    ccache -M 50G
+    ccache -s
+fi
+
+# Clean previous builds if requested
+if [ "${CLEAN_BUILD:-0}" = "1" ]; then
+    echo "🧹 Cleaning previous build..."
+    make clean
+fi
+
+# Select build target
+echo "🎯 Selecting build target..."
+lunch "${BUILD_VARIANT}_${TARGET_DEVICE}-${BUILD_TYPE}"
+
+# Start build
+echo "🔨 Starting compilation..."
+START_TIME=$(date +%s)
+
+# Build with appropriate number of parallel jobs
+JOBS=${BUILD_JOBS:-$(nproc)}
+echo "🚀 Building with $JOBS parallel jobs..."
+
+if [ "$BUILD_VARIANT" = "lineage" ]; then
+    # LineageOS specific build command
+    brunch "$TARGET_DEVICE"
+else
+    # Generic AOSP build
+    make -j"$JOBS" otapackage
+fi
+
+END_TIME=$(date +%s)
+BUILD_TIME=$((END_TIME - START_TIME))
+
+echo "✅ Build completed successfully!"
+echo "⏱️ Build time: $(date -u -d @$BUILD_TIME +%H:%M:%S)"
+
+# Display build artifacts
+echo "📦 Build artifacts:"
+find /home/buildbot/android/out/target/product/"$TARGET_DEVICE"/ -name "*.zip" -o -name "*.img" | head -10 

scripts/init-source.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+set -euo pipefail
+
+echo "🚀 Initializing Android source repository..."
+
+cd /home/buildbot/android/source
+
+# Configuration - you can modify these
+MANIFEST_URL="https://github.com/LineageOS/android.git"
+MANIFEST_BRANCH="lineage-21.0"
+MANIFEST_NAME="default.xml"
+
+# Check if source is already initialized
+if [ ! -d ".repo" ]; then
+    echo "📁 Initializing repo with manifest: $MANIFEST_URL"
+    echo "📋 Branch: $MANIFEST_BRANCH"
+    
+    repo init \
+        -u "$MANIFEST_URL" \
+        -b "$MANIFEST_BRANCH" \
+        -m "$MANIFEST_NAME" \
+        --depth=1 \
+        --no-clone-bundle
+        
+    echo "✅ Repository initialized successfully!"
+else
+    echo "📁 Repository already initialized, skipping..."
+fi
+
+# Display repo info
+echo "📊 Repository information:"
+repo info | head -10 

scripts/package-rom.sh

@@ -0,0 +1,68 @@
+#!/bin/bash
+set -euo pipefail
+
+echo "📦 Packaging ROM artifacts..."
+
+TARGET_DEVICE="${TARGET_DEVICE:-generic}"
+OUT_DIR="/home/buildbot/android/out/target/product/$TARGET_DEVICE"
+ARTIFACTS_DIR="/home/buildbot/artifacts"
+
+# Create artifacts directory
+mkdir -p "$ARTIFACTS_DIR"
+
+echo "📁 Copying build artifacts..."
+
+# Copy main ROM files
+if [ -f "$OUT_DIR"/*.zip ]; then
+    echo "📱 Copying ROM zip files..."
+    cp "$OUT_DIR"/*.zip "$ARTIFACTS_DIR/" || true
+fi
+
+# Copy recovery image
+if [ -f "$OUT_DIR/recovery.img" ]; then
+    echo "🔧 Copying recovery image..."
+    cp "$OUT_DIR/recovery.img" "$ARTIFACTS_DIR/" || true
+fi
+
+# Copy boot image  
+if [ -f "$OUT_DIR/boot.img" ]; then
+    echo "🥾 Copying boot image..."
+    cp "$OUT_DIR/boot.img" "$ARTIFACTS_DIR/" || true
+fi
+
+# Copy system image
+if [ -f "$OUT_DIR/system.img" ]; then
+    echo "💿 Copying system image..."
+    cp "$OUT_DIR/system.img" "$ARTIFACTS_DIR/" || true
+fi
+
+# Copy vendor image
+if [ -f "$OUT_DIR/vendor.img" ]; then
+    echo "🏪 Copying vendor image..."
+    cp "$OUT_DIR/vendor.img" "$ARTIFACTS_DIR/" || true
+fi
+
+# Create build info JSON
+echo "📋 Creating build information..."
+cat > "$ARTIFACTS_DIR/build-info.json" << EOF
+{
+  "build_number": "${BUILDKITE_BUILD_NUMBER:-unknown}",
+  "commit": "${BUILDKITE_COMMIT:-unknown}",
+  "branch": "${BUILDKITE_BRANCH:-unknown}",
+  "device": "$TARGET_DEVICE",
+  "build_date": "$(date -u +%Y-%m-%dT%H:%M:%SZ)",
+  "build_type": "${BUILD_TYPE:-userdebug}",
+  "variant": "${BUILD_VARIANT:-lineage}"
+}
+EOF
+
+# Create checksums
+echo "🔐 Generating checksums..."
+cd "$ARTIFACTS_DIR"
+find . -name "*.zip" -o -name "*.img" | xargs -I {} sh -c 'md5sum "{}" > "{}.md5"'
+find . -name "*.zip" -o -name "*.img" | xargs -I {} sh -c 'sha256sum "{}" > "{}.sha256"'
+
+echo "📊 Artifact summary:"
+ls -lh "$ARTIFACTS_DIR"
+
+echo "✅ Packaging completed successfully!" 

scripts/sync-source.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+set -euo pipefail
+
+echo "🔄 Syncing Android source code..."
+
+cd /home/buildbot/android/source
+
+# Check if repo is initialized
+if [ ! -d ".repo" ]; then
+    echo "❌ Repository not initialized! Run init-source.sh first."
+    exit 1
+fi
+
+# Sync with multiple jobs for faster download
+echo "⬇️ Starting source sync..."
+repo sync \
+    -c \
+    -j$(nproc) \
+    --force-sync \
+    --no-clone-bundle \
+    --no-tags \
+    --optimized-fetch \
+    --prune
+
+echo "✅ Source sync completed successfully!"
+
+# Display sync statistics
+echo "📊 Sync statistics:"
+echo "Total repositories: $(find .repo/projects -name "*.git" | wc -l)"
+echo "Disk usage: $(du -sh . | cut -f1)"
+
+# Check for any missing projects
+echo "🔍 Checking for missing projects..."
+if repo status | grep -q "project.*dirty\|project.*not up-to-date"; then
+    echo "⚠️ Some projects may need attention:"
+    repo status | grep -E "project.*dirty|project.*not up-to-date" || true
+else
+    echo "✅ All projects are clean and up-to-date"
+fi