#!/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_INFO CT_LOG_EXTRA CT_LOG_DEBUG LOG_ALL

 CT_LOG_WARN=y

 CT_LOG_LEVEL_MAX="WARN"

 # 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