#!/bin/sh

# Adds a new version to one of the toolchain component

myname="$0"

doHelp() {

    cat <<-EOF

Usage: ${myname} <tool> [option] <version>

  'tool' in one of:

    --gcc, --tcc, --binutils, --glibc, --uClibc, --linux, --cygwin

  Options:

    --experimental, -x

      mark the version as being experimental

  Valid mandatory 'option' for tool==gcc is one of:

    --core, --final

  Valid mandatory 'option' for tool==linux is one of:

    --install, --sanitised, --copy

  'version' is a valid version for the specified tool.

  Examples:

    add version 2.6.19.2 to linux kernel install method:

      ${myname} --linux --install 2.6.19.2

    add versions 2.3.5 and 2.3.6 to glibc:

      ${myname} --glibc 2.3.5 2.3.6

EOF

}

tool=

tool_prefix=

CORE=

FINAL=

VERSION=

EXP=

i=1

while [ $i -le $# ]; do

    case "${!i}" in

        --gcc)              cat=CC;        tool=gcc;      tool_prefix=cc_;      tool_suffix=;;

#        --tcc)              cat=CC;        tool=tcc;      tool_prefix=cc_;      tool_suffix=;;

        --binutils)         cat=BINUTILS;  tool=binutils; tool_prefix=;         tool_suffix=;;

        --glibc)            cat=LIBC;      tool=glibc;    tool_prefix=libc_;    tool_suffix=;;

        --uClibc)           cat=LIBC;      tool=uClibc;   tool_prefix=libc_;    tool_suffix=;;

        --linux)            cat=KERNEL;    tool=linux;    tool_prefix=kernel_;;

#        --cygwin)           cat=KERNEL;    tool=cygwin;   tool_prefix=kernel_;;

        --core)             CORE=1;;

        --final)            FINAL=1;;

        --install)          tool_suffix=install;;

        --sanitised)        tool_suffix=sanitised;;

        --copy)             tool_suffix=copy;;

        -x|--experimental)  EXP=1;;

        -h|--help)          doHelp; exit 0;;

        -*)             echo "Unknown option: \"${!i}\". (use -h/--help for help"; exit 1;;

        *)              VERSION="${VERSION} ${!i}";;

    esac

    i=$((i+1))

done

[ -n "${tool}" -o -n "${VERSION}" ] || { doHelp; exit 1; }

case "${cat}" in

    CC)     [ -z "${CORE}" -a -z "${FINAL}" ] && { doHelp; exit 1; };;

    KERNEL) unset FINAL CORE

            [ -z "${tool_suffix}" ] && { doHelp; exit 1; }

            ;;

    *)      FINAL=1; CORE=;;

esac

for ver in ${VERSION}; do

    unset DEP L1 L2 L3 L4 L5 FILE

	v=`echo "${ver}" |sed -r -e 's/-/_/g; s/\./_/g;'`

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

        L1="config ${cat}_CORE_V_${v}\n"

        L2="    bool\n"

        L3="    prompt \"${ver}\"\n"

        L5="    default \"${ver}\" if ${cat}_CORE_V_${v}"

        FILE="config/${tool_prefix}core_${tool}.in"

    fi

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

        L1="config ${cat}_V_${v}\n"

        L2="    bool\n"

        L3="    prompt \"${ver}\"\n"

        L5="    default \"${ver}\" if ${cat}_V_${v}"

        FILE="config/${tool_prefix}${tool}.in"

    fi

    if [ "${cat}" = "KERNEL" ]; then

        TOOL_SUFFIX="`echo \"${tool_suffix}\" |tr [[:lower:]] [[:upper:]]`"

        L1="config ${cat}_${TOOL_SUFFIX}_V_${v}\n"

        L2="    bool\n"

        L3="    prompt \"${ver}\"\n"

        # Extra versions are not necessary visible:

        case "${tool_suffix},${ver}" in

            sanitised,*)    ;; # Sanitised headers always have an extra version

            *,*.*.*.*)      DEP="${DEP} && KERNEL_VERSION_SEE_EXTRAVERSION";;

        esac

        L5="    default \"${ver}\" if ${cat}_${TOOL_SUFFIX}_V_${v}"

        FILE="config/${tool_prefix}${tool}_headers_${tool_suffix}.in"

    fi

    [ -n "${EXP}" ] && DEP="${DEP} && EXPERIMENTAL"

    case "${DEP}" in

        "") ;;

        *)  L4="    depends on `echo \"${DEP}\" |sed -r -e 's/^ \\&\\& //; s/\\&/\\\\&/g;'`\n"

    esac

    sed -r -i -e 's/^(# CT_INSERT_VERSION_ABOVE)$/'"${L1}${L2}${L3}${L4}"'\n\1/;

                  s/^(# CT_INSERT_VERSION_STRING_ABOVE)$/'"${L5}"'\n\1/;' "${FILE}"

done