gen_determineargs.sh

#!/bin/bash
# $Id$

get_KV() {
    if [ "${KERNEL_SOURCES}" = '0' -a -e "${KERNCACHE}" ]
    then
        mkdir -p ${TEMP}
        /bin/tar -xj -C ${TEMP} -f ${KERNCACHE} kerncache.config
        if [ -e ${TEMP}/kerncache.config ]
        then
            VER=`grep ^VERSION\ \= ${TEMP}/kerncache.config | awk '{ print $3 };'`
            PAT=`grep ^PATCHLEVEL\ \= ${TEMP}/kerncache.config | awk '{ print $3 };'`
            SUB=`grep ^SUBLEVEL\ \= ${TEMP}/kerncache.config | awk '{ print $3 };'`
            EXV=`grep ^EXTRAVERSION\ \= ${TEMP}/kerncache.config | sed -e "s/EXTRAVERSION =//" -e "s/ //g"`
            LOV=`grep ^CONFIG_LOCALVERSION\ \= ${TEMP}/kerncache.config | sed -e "s/CONFIG_LOCALVERSION =//" -e "s/ //g"`
            KV=${VER}.${PAT}.${SUB}${EXV}${LOV}
        else
            gen_die "Could not find kerncache.config in the kernel cache! Exiting."
        fi
    else
        # Configure the kernel
        # If BUILD_KERNEL=0 then assume --no-clean, menuconfig is cleared

        if [ ! -f "${KERNEL_DIR}"/Makefile ]
        then
            gen_die "Kernel Makefile (${KERNEL_DIR}/Makefile) missing.  Maybe re-install the kernel sources."
        fi

        VER=`grep ^VERSION\ \= ${KERNEL_DIR}/Makefile | awk '{ print $3 };'`
        PAT=`grep ^PATCHLEVEL\ \= ${KERNEL_DIR}/Makefile | awk '{ print $3 };'`
        SUB=`grep ^SUBLEVEL\ \= ${KERNEL_DIR}/Makefile | awk '{ print $3 };'`
        EXV=`grep ^EXTRAVERSION\ \= ${KERNEL_DIR}/Makefile | sed -e "s/EXTRAVERSION =//" -e "s/ //g" -e 's/\$([a-z]*)//gi'`

        if [ -z "${SUB}" ]
        then
            # Handle O= build directories
            KERNEL_SOURCE_DIR=`grep ^MAKEARGS\ \:\=  ${KERNEL_DIR}/Makefile | awk '{ print $4 };'`
            [ -z "${KERNEL_SOURCE_DIR}" ] && gen_die "Deriving \${KERNEL_SOURCE_DIR} failed"
            SUB=`grep ^SUBLEVEL\ \= ${KERNEL_SOURCE_DIR}/Makefile | awk '{ print $3 };'`
            EXV=`grep ^EXTRAVERSION\ \= ${KERNEL_SOURCE_DIR}/Makefile | sed -e "s/EXTRAVERSION =//" -e "s/ //g" -e 's/\$([a-z]*)//gi'`
        fi

        cd ${KERNEL_DIR}
        #compile_generic prepare kernel > /dev/null 2>&1
        cd - > /dev/null 2>&1
        [ -f "${KERNEL_DIR}/include/linux/version.h" ] && \
            VERSION_SOURCE="${KERNEL_DIR}/include/linux/version.h"
        [ -f "${KERNEL_DIR}/include/linux/utsrelease.h" ] && \
            VERSION_SOURCE="${KERNEL_DIR}/include/linux/utsrelease.h"
        # Handle new-style releases where version.h doesn't have UTS_RELEASE
        if [ -f ${KERNEL_DIR}/include/config/kernel.release ]
        then
            UTS_RELEASE=`cat ${KERNEL_DIR}/include/config/kernel.release`
            LOV=`echo ${UTS_RELEASE}|sed -e "s/${VER}.${PAT}.${SUB}${EXV}//"`
            KV=${VER}.${PAT}.${SUB}${EXV}${LOV}
        elif [ -n "${VERSION_SOURCE}" ]
        then
            UTS_RELEASE=`grep UTS_RELEASE ${VERSION_SOURCE} | sed -e 's/#define UTS_RELEASE "\(.*\)"/\1/'`
            LOV=`echo ${UTS_RELEASE}|sed -e "s/${VER}.${PAT}.${SUB}${EXV}//"`
            KV=${VER}.${PAT}.${SUB}${EXV}${LOV}
        else
            determine_config_file
            LOV=`grep ^CONFIG_LOCALVERSION= "${KERNEL_CONFIG}" | sed -r -e "s/.*=\"(.*)\"/\1/"`
            KV=${VER}.${PAT}.${SUB}${EXV}${LOV}
        fi
    fi
}

determine_real_args() {
    print_info 4 "Resolving config file, command line, and arch default settings."

    #                               Dest / Config File   Command Line             Arch Default
    #                               ------------------   ------------             ------------
    set_config_with_override STRING LOGFILE              CMD_LOGFILE
    set_config_with_override STRING KERNEL_DIR           CMD_KERNEL_DIR           "${DEFAULT_KERNEL_SOURCE}"
    set_config_with_override BOOL   KERNEL_SOURCES       CMD_KERNEL_SOURCES       "yes"
    set_config_with_override STRING KNAME                CMD_KERNNAME             "genkernel"
    set_config_with_override STRING KAPPENDNAME          CMD_APPENDNAME           ""

    set_config_with_override STRING COMPRESS_INITRD      CMD_COMPRESS_INITRD      "$DEFAULT_COMPRESS_INITRD"
    set_config_with_override STRING COMPRESS_INITRD_TYPE CMD_COMPRESS_INITRD_TYPE "$DEFAULT_COMPRESS_INITRD_TYPE"
    set_config_with_override STRING MAKEOPTS             CMD_MAKEOPTS             "$DEFAULT_MAKEOPTS"
    set_config_with_override STRING KERNEL_MAKE          CMD_KERNEL_MAKE          "$DEFAULT_KERNEL_MAKE"
    set_config_with_override STRING UTILS_MAKE           CMD_UTILS_MAKE           "$DEFAULT_UTILS_MAKE"
    set_config_with_override STRING KERNEL_CC            CMD_KERNEL_CC            "$DEFAULT_KERNEL_CC"
    set_config_with_override STRING KERNEL_LD            CMD_KERNEL_LD            "$DEFAULT_KERNEL_LD"
    set_config_with_override STRING KERNEL_AS            CMD_KERNEL_AS            "$DEFAULT_KERNEL_AS"
    set_config_with_override STRING UTILS_CC             CMD_UTILS_CC             "$DEFAULT_UTILS_CC"
    set_config_with_override STRING UTILS_LD             CMD_UTILS_LD             "$DEFAULT_UTILS_LD"
    set_config_with_override STRING UTILS_AS             CMD_UTILS_AS             "$DEFAULT_UTILS_AS"

    set_config_with_override STRING BOOTDIR              CMD_BOOTDIR              "/boot"
    set_config_with_override STRING KERNEL_OUTPUTDIR     CMD_KERNEL_OUTPUTDIR     "${KERNEL_DIR}"
    set_config_with_override STRING MODPROBEDIR          CMD_MODPROBEDIR

    set_config_with_override BOOL   SPLASH               CMD_SPLASH
    set_config_with_override BOOL   PLYMOUTH             CMD_PLYMOUTH
    set_config_with_override BOOL   POSTCLEAR            CMD_POSTCLEAR
    set_config_with_override BOOL   MRPROPER             CMD_MRPROPER
    set_config_with_override BOOL   MERGE_KCONFIG        CMD_MERGE_KCONFIG
    set_config_with_override BOOL   MENUCONFIG           CMD_MENUCONFIG
    set_config_with_override BOOL   NCONFIG              CMD_NCONFIG
    set_config_with_override BOOL   CLEAN                CMD_CLEAN

    set_config_with_override STRING MINKERNPACKAGE       CMD_MINKERNPACKAGE
    set_config_with_override STRING MODULESPACKAGE       CMD_MODULESPACKAGE
    set_config_with_override STRING KERNCACHE            CMD_KERNCACHE
    set_config_with_override BOOL   RAMDISKMODULES       CMD_RAMDISKMODULES        "yes"
    set_config_with_override BOOL   ALLRAMDISKMODULES    CMD_ALLRAMDISKMODULES
    set_config_with_override STRING INITRAMFS_OVERLAY    CMD_INITRAMFS_OVERLAY
    set_config_with_override BOOL   MOUNTBOOT            CMD_MOUNTBOOT
    set_config_with_override BOOL   BUILD_STATIC         CMD_STATIC
    set_config_with_override BOOL   SAVE_CONFIG          CMD_SAVE_CONFIG
    set_config_with_override BOOL   SYMLINK              CMD_SYMLINK
    set_config_with_override STRING INSTALL_MOD_PATH     CMD_INSTALL_MOD_PATH
    set_config_with_override BOOL   OLDCONFIG            CMD_OLDCONFIG
    set_config_with_override BOOL   UDEV                 CMD_UDEV                 "yes"
    set_config_with_override BOOL   LVM                  CMD_LVM
    set_config_with_override BOOL   DMRAID               CMD_DMRAID
    set_config_with_override BOOL   ISCSI                CMD_ISCSI
    set_config_with_override BOOL   BUSYBOX              CMD_BUSYBOX              "yes"
    set_config_with_override BOOL   NETBOOT              CMD_NETBOOT
    set_config_with_override STRING REAL_ROOT            CMD_REAL_ROOT
    set_config_with_override BOOL   LUKS                 CMD_LUKS
    set_config_with_override BOOL   GPG                  CMD_GPG
    set_config_with_override BOOL   MDADM                CMD_MDADM
    set_config_with_override STRING MDADM_CONFIG         CMD_MDADM_CONFIG
    set_config_with_override BOOL   E2FSPROGS            CMD_E2FSPROGS            "no"
    set_config_with_override BOOL   ZFS                  CMD_ZFS
    set_config_with_override BOOL   BTRFS                CMD_BTRFS
    set_config_with_override BOOL   VIRTIO               CMD_VIRTIO               "no"
    set_config_with_override BOOL   MULTIPATH            CMD_MULTIPATH
    set_config_with_override BOOL   FIRMWARE             CMD_FIRMWARE
    set_config_with_override STRING FIRMWARE_DST         CMD_FIRMWARE_DST         "/lib/firmware"
    set_config_with_override STRING FIRMWARE_SRC         CMD_FIRMWARE_SRC         "$FIRMWARE_DST"
    set_config_with_override STRING FIRMWARE_FILES       CMD_FIRMWARE_FILES
    set_config_with_override BOOL   FIRMWARE_INSTALL     CMD_FIRMWARE_INSTALL     "no"
    set_config_with_override BOOL   INTEGRATED_INITRAMFS CMD_INTEGRATED_INITRAMFS
    set_config_with_override BOOL   GENZIMAGE            CMD_GENZIMAGE
    set_config_with_override BOOL   KEYMAP               CMD_KEYMAP               "yes"
    set_config_with_override BOOL   DOKEYMAPAUTO         CMD_DOKEYMAPAUTO
    set_config_with_override STRING BUSYBOX_CONFIG       CMD_BUSYBOX_CONFIG
    set_config_with_override BOOL   INSTALL              CMD_INSTALL              "yes"

    BOOTDIR=`arch_replace "${BOOTDIR}"`
    BOOTDIR=${BOOTDIR%/}    # Remove any trailing slash
    MODPROBEDIR=${MODPROBEDIR%/}    # Remove any trailing slash

    CACHE_DIR=`arch_replace "${CACHE_DIR}"`
    BUSYBOX_BINCACHE=`cache_replace "${BUSYBOX_BINCACHE}"`

    DEFAULT_KERNEL_CONFIG=`arch_replace "${DEFAULT_KERNEL_CONFIG}"`
    BUSYBOX_CONFIG=`arch_replace "${BUSYBOX_CONFIG}"`
    BUSYBOX_BINCACHE=`arch_replace "${BUSYBOX_BINCACHE}"`

    if [ -n "${CMD_BOOTLOADER}" ]
    then
        BOOTLOADER="${CMD_BOOTLOADER}"
        if [ "${CMD_BOOTLOADER}" != "${CMD_BOOTLOADER/:/}" ]
        then
            BOOTFS=`echo "${CMD_BOOTLOADER}" | cut -f2- -d:`
            BOOTLOADER=`echo "${CMD_BOOTLOADER}" | cut -f1 -d:`
        fi
    fi

    if [ "${KERNEL_SOURCES}" != "0" ]
    then
        if [ ! -d ${KERNEL_DIR} ]
        then
            gen_die "kernel source directory \"${KERNEL_DIR}\" was not found!"
        fi
    fi

    if [ -z "${KERNCACHE}" ]
    then
        if [ "${KERNEL_DIR}" = '' -a "${KERNEL_SOURCES}" != "0" ]
        then
            gen_die 'No kernel source directory!'
        fi
        if [ ! -e "${KERNEL_DIR}" -a "${KERNEL_SOURCES}" != "0" ]
        then
            gen_die 'No kernel source directory!'
        fi
    else
        if [ "${KERNEL_DIR}" = '' ]
        then
            gen_die 'Kernel Cache specified but no kernel tree to verify against!'
        fi
    fi

    # After merging config fragments, make alldefconfig is run by default
    if isTrue ${MERGE_KCONFIG}
    then
        OLDCONFIG=0
    fi

    # Special case:  If --no-clean is specified on the command line,
    # imply --no-mrproper.
    if [ "${CMD_CLEAN}" != '' ]
    then
        if ! isTrue ${CLEAN}
        then
            MRPROPER=0
        fi
    fi

    if [ -n "${MINKERNPACKAGE}" ]
    then
        mkdir -p `dirname ${MINKERNPACKAGE}`
    fi

    if [ -n "${MODULESPACKAGE}" ]
    then
        mkdir -p `dirname ${MODULESPACKAGE}`
    fi

    if [ -n "${KERNCACHE}" ]
    then
        mkdir -p `dirname ${KERNCACHE}`
    fi

    if ! isTrue "${BUILD_RAMDISK}"
    then
        INTEGRATED_INITRAMFS=0
    fi

    # Since cryptsetup requires lvm2
    # LUKS imply LVM
    if isTrue "${LUKS}"
    then
        LVM=1
    fi

    get_KV
}