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#!/bin/sh

# == Configurations =========================================================

: ${src:="/home/lantw44/livecd/src"}
: ${root:="/home/lantw44/livecd/root"}
: ${cdroot:="/home/lantw44/livecd/cdroot"}
: ${image:="/home/lantw44/livecd/out/FreeBSD-10.1-GNOME-3.14-`date '+%Y%m%d'`.iso"}

: ${repo="/usr/local/poudriere/data/packages/freebsd10-marcuscom-gnome3"}
: ${pkgs="`cat /home/lantw44/livecd/gnome3-pkgs`"}

# ===========================================================================

vol="FREEBSD_10_GNOME_3"
steps="system packages user config uzip ramdisk boot image"
pwdir="`dirname "$0"`"
cd "${pwdir}"
pwdir="`pwd`"

system () {
    install -o root -g wheel -m 755 -d "${root}"
    cd "${src}" || return 1
    make installworld  DESTDIR="${root}" || return 1
    make installkernel DESTDIR="${root}" || return 1
    make distribution  DESTDIR="${root}" || return 1
}

packages () {
    sed -i.bak 's|yes|no|' "${root}/etc/pkg/FreeBSD.conf"
    cat << EOF > "${root}/etc/pkg/packages.conf"
packages: {
   url: "file:///packages",
   enabled: yes
}
EOF
    install -d "${root}/packages"
    mount_nullfs "${repo}" "${root}/packages"
    pkg -c "${root}" install -fy ${pkgs} || {
        umount "${root}/packages"
        return 1
    }
    rm -rf "${root}/var/cache/pkg/All"
    umount "${root}/packages"
    rm -f "${root}/etc/pkg/packages.conf"
    mv -f "${root}/etc/pkg/FreeBSD.conf.bak" "${root}/etc/pkg/FreeBSD.conf"
}

user () {
    install -o root -g wheel -m 755 -d "${root}/home"
    cat << EOF > "${root}/users"
#!/bin/sh
set -x
for user in liveuser; do
    pw add user \$user -G wheel -s /bin/tcsh -M 755
    chpass -p '' \$user
    install -o \$user -g \$user -m 755 -d /home/\$user
    echo 'limit coredumpsize 0' > /home/\$user/.login
    chown \$user:\$user /home/\$user/.login
done
EOF
    chmod 755 "${root}/users"
    chroot "${root}" "/users"
    rm -f "${root}/users"
}

config () {
    cd "${pwdir}"
    install -o root -g wheel -m 644 "rc.conf" "${root}/etc/"
    cat << EOF > "${root}/etc/fstab"
fdesc   /dev/fd         fdescfs         rw      0       0
EOF
    cat << EOF > "${root}/etc/sysctl.conf"
kern.coredump=0
EOF
}

uzip () {
    install -o root -g wheel -m 755 -d "${cdroot}/data"
    makefs "${cdroot}/data/system.ufs" "${root}"
    mkuzip -o "${cdroot}/data/system.uzip" "${cdroot}/data/system.ufs"
    rm -f "${cdroot}/data/system.ufs"
}

ramdisk () {
    ramdisk_root="${cdroot}/data/ramdisk"
    mkdir -p "${ramdisk_root}"
    cd "${root}"
    tar -cf - rescue | tar -xf - -C "${ramdisk_root}"
    cd "${pwdir}"
    install -o root -g wheel -m 755 "init.sh" "${ramdisk_root}"
    mkdir "${ramdisk_root}/dev"
    mkdir "${ramdisk_root}/etc"
    touch "${ramdisk_root}/etc/fstab"
    makefs -b '10%' "${cdroot}/data/ramdisk.ufs" "${ramdisk_root}"
    gzip "${cdroot}/data/ramdisk.ufs"
    rm -rf "${ramdisk_root}"
}

boot () {
    cd "${root}"
    tar -cf - --exclude boot/kernel boot | tar -xf - -C "${cdroot}"
    for kfile in kernel geom_uzip.ko nullfs.ko tmpfs.ko unionfs.ko; do
        tar -cf - boot/kernel/${kfile} | tar -xf - -C "${cdroot}"
    done
    cd "${pwdir}"
    install -o root -g wheel -m 644 "loader.conf" "${cdroot}/boot/"
}

image () {
    cd "${cdroot}"
    mkisofs -iso-level 4 -R -l -ldots -allow-lowercase -allow-multidot -V \
        "${vol}" -o "${image}" -no-emul-boot -b boot/cdboot .
}


if [ "`id -u`" '!=' "0" ]; then
    echo "Sorry, you are not root ..."
    exit 1
fi

printf "All steps: \033[1;33m%s\033[m\n" "${steps}"
printf "(E)dit or (R)un? "
read edit_or_run

case "${edit_or_run}" in
    E*|e*)
        printf "New steps: "
        read steps
        ;;
    R*|r*)
        ;;
    *)
        echo "Unknown action ..."
        exit 1
        ;;
esac

for task in ${steps}; do
    if type "${task}" >/dev/null 2>/dev/null; then :; else
        printf "==> Task \033[1;31m%s\033[m not found\n" "${task}"
        exit 1
    fi
done

for task in ${steps}; do
    printf "==> Running task \033[1;33m%s\033[m\n" "${task}"
    set -x
    if ${task}; then
        set +x
        printf "=> Task \033[1;32m%s\033[m OK\n" "${task}"
    else
        set +x
        printf "=> Task \033[1;31m%s\033[m failed\n" "${task}"
        exit 1
    fi
done