#!/bin/bash

# This script is responsible for saving the current configuration into a

# sample to be used later on as a pre-configured target.

# What we need to save:

#  - the .config file

#  - the kernel .config file if specified

#  - the uClibc .config file if uClibc selected

. "${CT_LIB_DIR}/scripts/functions"

# Don't care about any log file

exec >/dev/null

rm -f "${tmp_log_file}"

# Parse the configuration file

CT_TestOrAbort "Configuration file not found. Please create one." -f "${CT_TOP_DIR}/.config"

. "${CT_TOP_DIR}/.config"

# Parse the architecture-specific functions

. "${CT_LIB_DIR}/arch/${CT_ARCH}/functions"

# Target tuple: CT_TARGET needs a little love:

CT_DoBuildTargetTuple

# Kludge: if any of the config options needs either CT_TARGET or CT_TOP_DIR,

# re-parse them:

. "${CT_TOP_DIR}/.config"

# Override log level

unset CT_LOG_ERROR CT_LOG_WARN CT_LOG_EXTRA CT_LOG_DEBUG 

CT_LOG_INFO=y

CT_LOG_LEVEL_MAX="INFO"

# Create the sample directory

if [ ! -d "${CT_TOP_DIR}/samples/${CT_TARGET}" ]; then

    mkdir -p "${CT_TOP_DIR}/samples/${CT_TARGET}"

fi

# Save the crosstool-NG config file

sed -r -e 's|^(CT_PREFIX_DIR)=.*|\1="${HOME}/x-tools/${CT_TARGET}"|;' \

    <"${CT_TOP_DIR}/.config"                                        \

    >"${CT_TOP_DIR}/samples/${CT_TARGET}/crosstool.config"

# Function to copy a file to the sample directory

# Needed in case the file is already there (think of a previously available sample)

# Usage: CT_DoAddFileToSample <source> <dest>

CT_DoAddFileToSample() {

    source="$1"

    dest="$2"

    inode_s=$(ls -i "${source}")

    inode_d=$(ls -i "${dest}" 2>/dev/null || true)

    if [ "${inode_s}" != "${inode_d}" ]; then

        cp "${source}" "${dest}"

    fi

}

if [ "${CT_TOP_DIR}" = "${CT_LIB_DIR}" ]; then

    samp_top_dir="\${CT_LIB_DIR}"

else

    samp_top_dir="\${CT_TOP_DIR}"

fi

# Save the kernel .config file

if [ -n "${CT_KERNEL_LINUX_CONFIG_FILE}" ]; then

    # We save the file, and then point the saved sample to this file

    CT_DoAddFileToSample "${CT_KERNEL_LINUX_CONFIG_FILE}" "${CT_TOP_DIR}/samples/${CT_TARGET}/${CT_KERNEL}-${CT_KERNEL_VERSION}.config"

    sed -r -i -e 's|^(CT_KERNEL_LINUX_CONFIG_FILE=).+$|\1"'"${samp_top_dir}"'/samples/${CT_TARGET}/${CT_KERNEL}-${CT_KERNEL_VERSION}.config"|;' \

        "${CT_TOP_DIR}/samples/${CT_TARGET}/crosstool.config"

else

    # remove any dangling files

    for f in "${CT_TOP_DIR}/samples/${CT_TARGET}/${CT_KERNEL}-"*.config; do

        if [ -f "${f}" ]; then rm -f "${f}"; fi

    done

fi

# Save the uClibc .config file

if [ -n "${CT_LIBC_UCLIBC_CONFIG_FILE}" ]; then

    # We save the file, and then point the saved sample to this file

    CT_DoAddFileToSample "${CT_LIBC_UCLIBC_CONFIG_FILE}" "${CT_TOP_DIR}/samples/${CT_TARGET}/${CT_LIBC}-${CT_LIBC_VERSION}.config"

    sed -r -i -e 's|^(CT_LIBC_UCLIBC_CONFIG_FILE=).+$|\1"'"${samp_top_dir}"'/samples/${CT_TARGET}/${CT_LIBC}-${CT_LIBC_VERSION}.config"|;' \

        "${CT_TOP_DIR}/samples/${CT_TARGET}/crosstool.config"

else

    # remove any dangling files

    for f in "${CT_TOP_DIR}/samples/${CT_TARGET}/${CT_LIBC}-"*.config; do

        if [ -f "${f}" ]; then rm -f "${f}"; fi

    done

fi