chroot_build_steps.sh

#!/bin/bash
# ==============================================================================
# Chroot Build Script Template for FydeOS Terra Build
# This script runs INSIDE the ChromeOS SDK chroot
# ==============================================================================

set -euo pipefail

# Configuration from outer script
BOARD_NAME="terra_fydeos"
KERNEL_PACKAGE_NAME="chromeos-kernel-5_10"
NUM_JOBS="8"
LOAD_AVERAGE="10"
CCACHE_MAXSIZE="50G"

# Ensure we are at the root of the source checkout inside chroot
cd /mnt/host/source

echo "[CHROOT] Starting build process for ${BOARD_NAME}"
echo "[CHROOT] Build parallelism: ${NUM_JOBS} jobs, load average limit: ${LOAD_AVERAGE}"

# Set up ccache properly inside chroot
if command -v ccache >/dev/null 2>&1; then
    echo "[CHROOT] Configuring ccache..."
    ccache --set-config max_size="${CCACHE_MAXSIZE}"
    ccache --set-config hash_dir=true
    ccache --set-config compression=true
    ccache --zero-stats
    export USE_CCACHE=1
    export CCACHE_DIR="/home/$(whoami)/.ccache"
    echo "[CHROOT] ccache configuration complete"
fi

# Fix /usr/local/bin/ccache wrapper if it exists and is broken
if [ -f "/usr/local/bin/ccache" ]; then
    if grep -q "exec.*-F" /usr/local/bin/ccache 2>/dev/null; then
        echo "[CHROOT] Fixing broken ccache wrapper..."
        sudo rm -f /usr/local/bin/ccache
        sudo ln -sf /usr/bin/ccache /usr/local/bin/ccache
    fi
fi

# Set up environment for better error handling and logging
export PORTAGE_TMPDIR=/var/tmp/portage
export PORTAGE_LOGDIR=/var/tmp/portage-logs
export PORT_LOGDIR=/var/tmp/portage-logs

# Create necessary directories with proper permissions
sudo mkdir -p "${PORTAGE_LOGDIR}" /var/cache/vpython /var/cache/cipd || true
sudo chmod 1777 /var/cache/vpython /var/cache/cipd || true
sudo chgrp portage "${PORTAGE_LOGDIR}" || true
sudo chmod 2775 "${PORTAGE_LOGDIR}" || true

# Ensure emerge log is writable
sudo touch /var/log/emerge.log || true
sudo chgrp portage /var/log/emerge.log || true
sudo chmod 664 /var/log/emerge.log || true

# Fix Portage repos.conf to add missing masters
echo "[CHROOT] Fixing Portage repository configuration..."
REPOS_CONF="/etc/portage/repos.conf"
if [ -d "${REPOS_CONF}" ]; then
    for conf_file in "${REPOS_CONF}"/*.conf; do
        if [ -f "${conf_file}" ] && ! grep -q "^masters" "${conf_file}" 2>/dev/null; then
            repo_name=$(basename "${conf_file}" .conf)
            if [[ "${repo_name}" == "crossdev" || "${repo_name}" == *"overlay"* ]]; then
                echo "[CHROOT] Adding masters to ${conf_file}"
                echo "masters = portage-stable chromiumos" | sudo tee -a "${conf_file}" > /dev/null
            fi
        fi
    done
fi

echo "[CHROOT] Creating board overlay for ${BOARD_NAME}..."
OVERLAY_DIR="/mnt/host/source/src/overlays/overlay-${BOARD_NAME}"

# Create comprehensive overlay structure
sudo mkdir -p "${OVERLAY_DIR}/profiles/base" "${OVERLAY_DIR}/metadata" || true

# Create repo_name file
echo "${BOARD_NAME}" | sudo tee "${OVERLAY_DIR}/profiles/repo_name" > /dev/null

# Create layout.conf with proper masters
sudo tee "${OVERLAY_DIR}/metadata/layout.conf" > /dev/null << EOF
masters = portage-stable chromiumos eclass-overlay
repo-name = ${BOARD_NAME}
profile-formats = portage-2
cache-formats = md5-dict
EOF

# Create parent profile - inherit from appropriate base
sudo tee "${OVERLAY_DIR}/profiles/base/parent" > /dev/null << EOF
chromiumos:default/linux/amd64/10.0/chromeos
chromiumos:features/selinux
fydeos:default
EOF

# Create comprehensive make.defaults with all features
sudo tee "${OVERLAY_DIR}/profiles/base/make.defaults" > /dev/null << 'EOF'
# Board-specific configuration for terra_fydeos (C202SA)
BOARD_COMPILER_FLAGS="-march=silvermont -mtune=silvermont"
BOARD_USE="${BOARD_USE} kernel-5_10"

# Enable core features
USE="${USE} arc arcpp"
USE="${USE} crosvm kvm_guest"
USE="${USE} containers crostini"

# Audio support
USE="${USE} alsa pulseaudio"

# Hardware support
USE="${USE} wifi bluetooth usb"

# Development and debugging
USE="${USE} debug-symbols"

# FydeOS specific
USE="${USE} fydeos_store"
EOF

# Create toolchain.conf
sudo tee "${OVERLAY_DIR}/toolchain.conf" > /dev/null << EOF
x86_64-cros-linux-gnu {"default": true}
EOF

# Create comprehensive audio configuration
echo "[CHROOT] Creating audio configuration packages..."
create_audio_packages() {
    # UCM package
    local ucm_pkg="${OVERLAY_DIR}/chromeos-base/chromeos-alsa-ucm-terra"
    local ucm_files="${ucm_pkg}/files/chtrt5650"
    sudo mkdir -p "${ucm_files}"
    
    # Download UCM files
    curl -fsSL -o /tmp/chtrt5650.conf "https://raw.githubusercontent.com/GalliumOS/galliumos-braswell/master/usr/share/alsa/ucm/chtrt5650/chtrt5650.conf"
    curl -fsSL -o /tmp/HiFi.conf "https://raw.githubusercontent.com/GalliumOS/galliumos-braswell/master/usr/share/alsa/ucm/chtrt5650/HiFi.conf"
    
    sudo mv /tmp/chtrt5650.conf /tmp/HiFi.conf "${ucm_files}/"
    
    sudo tee "${ucm_pkg}/chromeos-alsa-ucm-terra-1.0.ebuild" > /dev/null << 'EOFUCM'
# Copyright 2024 The FydeOS Authors
EAPI="7"
inherit cros-workon

DESCRIPTION="ALSA UCM profiles for TERRA (chtrt5650)"
LICENSE="GPL-2"
SLOT="0"
KEYWORDS="~*"

src_install() {
    local ucm_dir="${D}/usr/share/alsa/ucm2/conf.d/chtrt5650"
    insinto "${ucm_dir}"
    doins "${FILESDIR}/chtrt5650/"*
}
EOFUCM

    # ALSA state package
    local state_pkg="${OVERLAY_DIR}/chromeos-base/chromeos-alsa-state-terra"
    local state_files="${state_pkg}/files"
    sudo mkdir -p "${state_files}"
    
    curl -fsSL -o /tmp/asound.state "https://raw.githubusercontent.com/rgvxsthi/Braswell-EDGAR-Linux-Fixes/master/asound.state"
    sudo mv /tmp/asound.state "${state_files}/"
    
    sudo tee "${state_pkg}/chromeos-alsa-state-terra-1.0.ebuild" > /dev/null << 'EOFSTATE'
# Copyright 2024 The FydeOS Authors
EAPI="7"
inherit cros-workon

DESCRIPTION="Custom asound.state for TERRA (Braswell)"
LICENSE="GPL-2"
SLOT="0" 
KEYWORDS="~*"

src_install() {
    insinto /var/lib/alsa
    doins "${FILESDIR}/asound.state"
}
EOFSTATE
}

create_audio_packages

# Create BSP package to tie everything together
echo "[CHROOT] Creating Board Support Package..."
BSP_PKG_DIR="${OVERLAY_DIR}/virtual/chromeos-bsp-terra"
sudo mkdir -p "${BSP_PKG_DIR}"

sudo tee "${BSP_PKG_DIR}/chromeos-bsp-terra-1.ebuild" > /dev/null << 'EOFBSP'
# Copyright 2024 The FydeOS Authors
EAPI="7"

DESCRIPTION="Board-specific packages for TERRA (C202SA)"
RDEPEND="
    chromeos-base/chromeos-alsa-ucm-terra
    chromeos-base/chromeos-alsa-state-terra
    sys-kernel/linux-firmware
"
EOFBSP

echo "[CHROOT] Board overlay creation complete"

# Set up board with comprehensive error checking
echo "[CHROOT] Setting up board: ${BOARD_NAME}"
if ! /mnt/host/source/chromite/bin/setup_board --board="${BOARD_NAME}" --force; then
    echo "[CHROOT] setup_board failed, checking for common issues..."
    ls -la /mnt/host/source/chromite/bin/setup_board || true
    ls -la /build/ || true
    exit 1
fi

# Build packages with optimized settings
echo "[CHROOT] Building packages for ${BOARD_NAME}"
export MAKEOPTS="-j${NUM_JOBS} -l${LOAD_AVERAGE}"
export EMERGE_DEFAULT_OPTS="--jobs=${NUM_JOBS} --load-average=${LOAD_AVERAGE} --with-bdeps=y"

if ! /mnt/host/source/chromite/bin/build_packages --board="${BOARD_NAME}" --withdebugsymbols; then
    echo "[CHROOT] build_packages failed, checking logs..."
    find /build/"${BOARD_NAME}"/tmp/portage -name "build.log" -newer /tmp -exec tail -n 50 {} \; 2>/dev/null | tail -n 100
    exit 1
fi

# Build optimized image
echo "[CHROOT] Building disk image for ${BOARD_NAME}"
if ! /mnt/host/source/chromite/bin/build_image --board="${BOARD_NAME}" --noenable_rootfs_verification; then
    echo "[CHROOT] build_image failed"
    exit 1
fi

echo "[CHROOT] Build process completed successfully"
echo "[CHROOT] ccache statistics:"
ccache --show-stats || true