~project-rootstock-developers/project-rootstock/trunk : contents of rootstock at revision 129

~project-rootstock-developers/project-rootstock/trunk : (revision 129)
#!/bin/sh
#
#  Copyright (c) 2009, 2010 Canonical
#
#  Author: Oliver Grawert <ogra@canonical.com>
#          Ricardo Salveti <ricardo.salveti@canonical.com>
#
#  This program is free software; you can redistribute it and/or
#  modify it under the terms of the GNU General Public License as
#  published by the Free Software Foundation; either version 2 of the
#  License, or (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software
#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
#  USA
#
######################################################################
# This script creates a tgz file of an armel rootfs you can untar in #
# a partition for your target hardware (beagleboard, EVM or freescale#
# board were tested with this yet)                                   #
# See https://wiki.ubuntu.com/ARM/RootfsFromScratch for more details #
######################################################################
#
# TODO: - install langpacks for selected locale
#
######################################################################

set -e

trap cleanup 1 2 3 6 15

PROGRAM="$(basename $0)"
VERSION="0.1.99.4"

log()
{
    [ $QUIET ] || echo "$*"
    echo "$*" >> $LOG
}

error()
{
    echo "$*" | tee -a $LOG
}

cleanup()
{
    log "I: Cleaning up..."

    # kill debootstrap if its running
    if [ -e ${DBPID} ];then
        DPID=$(cat ${DBPID})
        kill -9 $DPID >/dev/null 2>&1
        log "I: Killed debootstrap... "
    fi

    # kill qemu if its running
    if [ -e ${QEMUPID} ];then
        QPID=$(cat ${QEMUPID})
        kill -9 $QPID >/dev/null 2>&1
        log "I: Killed qemu... "
    fi

    # kill chroot environment if its running
    if [ -e ${CHRPID} ];then
        CPID=$(cat ${CHRPID})
        kill -9 $CPID >/dev/null 2>&1
        log "I: Killed chroot... "
    fi

    for i in 1 2 3 4 5; do
        echo -n '.'
        sleep 1
    done
    echo

    # unmount qemu image
    umount_image

    # unmount tmpfs for swap
    umount_swap

    savelog

    # wipe builddir
    rm -rf $BUILDDIR
    echo "I: Done"
    exit 0
}

usage()
{
cat <<EOF
Usage: $PROGRAM -f <hostname> [OPTION]...
Generates Ubuntu armel rootfs tarballs and/or qemu image, to be
uncompressed onto a root device.

Note that it does not set up a kernel, modules or bootloader for you.
Kernel and bootloader need to be set up in a device specific manner,
modules should be copied to the filesystem after it was uncompressed
on the target device.

It also uses a virtual machine and can take long to build your
filesystem, please be patient and make sure to have enough CPU power
on the host machine.

Options:

Required:

-f --fqdn <hostname>
    Hostname to be used for the target system

Additional:

-l --login <login name>
    Login ID of the admin user created during setup
-p --password <password>
    Password of the admin user created during setup
-h --help
    Display this help
-n --fullname <quoted string>
    Full Name of the admin user created during setup
    (default: "Ubuntu System User")
-s --seed <csv list>
    List of packages to install (i.e. ubuntu-desktop)
-i --imagesize <size>M/G
    Size of the target filesystem to be created (i.e. 500M)
    (default: 1G)
-g --manifest <path to file>
    Manifest file with list of packages to install (one per line)
-m --mirror <url>
    apt mirror to use (i.e. http://ports.ubuntu.com/ubuntu-ports)
    (default: http://ports.ubuntu.com/ubuntu-ports)
-c --components <csv list>
    Archive components
    (default: main,universe)
-d --dist (jaunty, karmic, lucid or maverick)
    Specify Release to build
    (default: `lsb_release -cs`)
-t --timezone <timezone>
    Timezone for the system (i.e. Europe/Berlin)
    (default: buildsystem timezone)
-x --locale <locale.encoding>
    Language used in the installed system (i.e. en_US.UTF-8)
    (default: buildsystem locale)
--script <filename>
    Run this script at the end of the installation process
--serial <devicename>
    Create a serial tty of <devicename> inside the rootfs for login (i.e. ttyS0)
--doswap
    Do create a swapfile in tmpfs for the virtual machine
--swapsize <size in megabyte>
    Use a different size for the swapfile used by the virtual machine
    (default: 256M)
--version
    Print version number

Keyboard:

--kblayout <layout>
    Keyboard layout (i.e. us)
    (default: buildsystem kblayout)
--kbmodel <model>
    Keyboard model (i.e. pc105)
    (default: buildsystem kbmodel)
--kbvariant <variant>
    Keyboard variant (i.e. nodeadkeys)
    (default: buildsystem kbvariant)
--kboptions <options>
    Additional keyboard options
    (default: buildsystem kboptions)

Output:

--keepimage
    Keep the qemu image instead of deleting it (disabled for native)
--notarball
    Do not roll a tarball of the rootfs (autosets --keepimage)

Extra parameters:

-q --quiet
    Quiet operation, only write to log

Advanced:

--kernel-image <http url to kernel .deb>
    install board specfic kernel package from http accessible deb package inside rootfs
--copy-package-cache
    save a snapshot of all packages used for a build locally to re-use them
    in a subsequent offline build with the --restore-package-cache option
--restore-package-cache
    use precached packages from a former build run with --copy-package-cache
--clean-package-cache
    empty the package cache of a former --copy-package-cache run
--extra-mirror
    additional mirror to use
--no-root
    run rootstock without requiring root access (slower as uses a full vm)

Examples:

Xubuntu-Desktop (as root): rootstock -f host -l user -p temppwd -i 2G -s xubuntu-desktop

Minimal Ubuntu (as user): rootstock -f host -l user -p temppwd -i 512M --no-root -s ubuntu-minimal

Report bugs at https://launchpad.net/project-rootstock/+filebug

For Known Issues, please read https://wiki.ubuntu.com/ARM/RootStock/KnownIssues.
EOF
    exit 0
}

print_version()
{
cat <<EOF
$PROGRAM $VERSION

Copyright (C) 2009, 2010 Canonical
License: GNU GPL version 2 or later <http://gnu.org/licenses/gpl.html>.

This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by Oliver Grawert <ogra@canonical.com> and Ricardo Salveti <ricardo.salveti@canonical.com>.
EOF
}

savelog()
{
    if [ -z "$NOSAVELOG" ];then
        mv $LOG $DIR/
        echo "I: A logfile was saved as $DIR/${PROGRAM}-$STAMP.log"
    fi
}

create_qemu_image()
{
    log "I: Creating temporary qemu Image to be used as rootfs"
    LANG=C qemu-img create $IMAGENAME ${IMAGESIZE}k >>$LOG 2>&1
    LANG=C mkfs.ext3 -F $IMAGENAME >>$LOG 2>&1
}

create_rootfs_image()
{
    # create the ext3 image to be used later with qemu
    log "I: Creating ext3 Image from the rootfs"
    if ! ERROR=$(genext2fs -b $IMAGESIZE -i $BYTEINODE -d $ROOTFS $IMAGENAME 2>&1);then
        error "E: $ERROR"
        cleanup
    fi
    tune2fs -j $IMAGENAME >>$LOG 2>&1
    # fsck is expected to return != 0
    ! fsck.ext3 -y -f $IMAGENAME >>$LOG 2>&1
}

mount_image()
{
    log "I: Mounting temporary Image"
    if [ ! -d $MOUNTPOINT ];then
        mkdir -p $MOUNTPOINT >>$LOG 2>&1
    fi
    if [ "$NOROOT" ];then
        fuseext2 -o rw+,direct_io -s $IMAGENAME $MOUNTPOINT >>$LOG 2>&1
    elif [ ! "$IS_NATIVE" ];then
        mount -o loop $IMAGENAME $MOUNTPOINT >>$LOG 2>&1
    fi
}

umount_image()
{
    if grep -q ${MOUNTPOINT} /proc/mounts; then
        log "I: Umounting temporary Image"
        if [ "$NOROOT" ];then
            fusermount -z -u $MOUNTPOINT >>$LOG 2>&1
        else
            # be sure we unmount everything
            if grep -q ${MOUNTPOINT}/dev/pts /proc/mounts; then
                umount -f ${MOUNTPOINT}/dev/pts
            fi
            if grep -q ${MOUNTPOINT}/proc /proc/mounts; then
                umount -f ${MOUNTPOINT}/proc
            fi
            if grep -q ${MOUNTPOINT}/sys /proc/mounts; then
                umount -f ${MOUNTPOINT}/sys
            fi
            if [ ! "$IS_NATIVE" ]; then
                umount -l $MOUNTPOINT >>$LOG 2>&1
            fi
        fi
    fi
}

umount_swap()
{
    if [ -n "$TMPMOUNT" ];then
        if $(mount |grep -q $TMPMOUNT);then
            umount -l $TMPMOUNT
        fi
    fi
}

run_first_stage()
{
    log "I: Running first stage"

    mkfifo $DBFIFO

    EXTRAOPTS=""
    TARBALL=$CACHEDIR/debootstrap.tgz
    DMIRROR="$MIRROR"
    DEFOPTS="--foreign --arch=armel"

    if [ "$RESTORE_PACKAGE_CACHE" ];then
        if [ ! -d $CACHEDIR ] || [ ! -f $TARBALL ];then
            error "E: Error, no pre-cached packages found !"
            error "E: please run rootstock with --copy-package-cache first"
            NOSAVELOG=1
            cleanup
        fi
        log "I: using pre-cached packages"
        EXTRAOPTS="--unpack-tarball=$TARBALL"
        DMIRROR="file://$CACHEDIR"
    fi

    if [ "$COPY_PACKAGE_CACHE" ];then
        log "I: pre-caching debootstrap packages"
        EXTRAOPTS="--keep-debootstrap-dir --make-tarball=$TARBALL"
        mkdir -p $CACHEDIR

        LANG=C fakeroot debootstrap $DEFOPTS $EXTRAOPTS $DIST $ROOTFS $DMIRROR >$DBFIFO 2>&1 &
        echo $! > $DBPID
        while read line; do
            log "${line}"
        done <$DBFIFO

        EXTRAOPTS="--unpack-tarball=$TARBALL"
    fi

    # recreate to avoid interrupted syscall
    rm -f $DBFIFO
    mkfifo $DBFIFO

    # using fakeroot so we're able to create the base rootfs as user
    LANG=C fakeroot debootstrap $DEFOPTS $EXTRAOPTS $DIST $ROOTFS $DMIRROR >$DBFIFO 2>&1 &

    echo $! > $DBPID
    while read line; do
        log "${line}"
    done <$DBFIFO

    if [ "$COPY_PACKAGE_CACHE" ];then
        mkdir -p $CACHEDIR/dists/$DIST
        cp $ROOTFS/var/lib/apt/lists/*Release $CACHEDIR/dists/$DIST/Release
    fi

    if [ ! "$(which qemu-arm-static)" -a ! "$IS_NATIVE" ] || [ "$NOROOT" ];then
        SECOND_STAGE="/debootstrap/debootstrap --second-stage"
    else
        if [ ! "$IS_NATIVE" ];then
            mkdir -p $ROOTFS/usr/bin/
            cp $(which qemu-arm-static) $ROOTFS/usr/bin/
        fi
        $CHROOT $ROOTFS debootstrap/debootstrap --second-stage >$DBFIFO 2>&1 &
        SECOND_STAGE=""

		echo $! > $DBPID
		while read line; do
			log "${line}"
		done <$DBFIFO
    fi

    rm -f $DBFIFO
    rm -f $DBPID

    log "I: First stage install done"
}

run_vm()
{
    # get kernel
    log "I: Getting Virtual Machine kernel from the server"
    get_vm_kernel

    log "I: Switching to Virtual Machine for second stage processing"
    VMCPU="cortex-a8"
    if [ -n "$SWAPFILE" ];then
        SWAPDEV="-hdb $SWAPFILE"
    fi
    QEMUOPTS="-M versatilepb ${VMCPU:+-cpu $VMCPU} -kernel ${BUILDDIR}/qemu-vmlinuz -no-reboot -nographic -pidfile ${QEMUPID} -drive file=${IMAGENAME},aio=native,cache=none ${SWAPDEV} -m 256"
    APPEND="console=ttyAMA0,115200n8 root=/dev/sda rw mem=256M init=/bin/installer quiet"
    if [ ! "$NOROOT" ];then
        APPEND="${APPEND} devtmpfs.mount=0"
    fi

    # XXX: run qemu at least 2 times, workaround for qemu bug LP #604872
    QEMURUN=0
    while [ "$QEMURUN" -lt 2 ] && [ ! "$QEMUDONE" ];do
        rm -f $QEMUFIFO
        mkfifo $QEMUFIFO

        ! qemu-system-arm $QEMUOPTS -append "${APPEND}" >$QEMUFIFO 2>&1 &
        if [ "$QEMURUN" -gt 0 ];then
            error "W: Bad Bad Qemu, trying second stage one more time (LP #604872)"
        fi
        QEMURUN=$(($QEMURUN+1))
        while read line; do
            if [ "$(echo $line|grep panic)" ];then
                log "${line}"
                error "E: Second stage build in Virtual Machine failed !"
                error "E: Please see the log to see what went wrong."
                cleanup
            fi
            if [ "$line" ] && [ ! "$(echo $line|grep 'Uncompressing Linux')" ] && \
                [ ! "$(echo $line|grep 'unknown LCD panel')" ] && \
                [ ! "$(echo $line|grep 'Restarting system')" ];then
                log "${line}"
            fi
            if [ "$(echo $line|grep 'Restarting system')" ];then
                QEMUDONE=1
            fi
        done <$QEMUFIFO
    done;

    if [ ! "$QEMUDONE" ];then
        error "E: Failed to run the second stage in the Virtual Machine !"
        cleanup
    fi

    rm -f $QEMUPID

    log "I: Virtual Machine done"
}

run_chroot()
{
    log "I: Using Chroot for installer"

    mkfifo $CHRFIFO

    # mounting required mount points
    mount -t proc none ${ROOTFS}/proc
    mkdir -p ${ROOTFS}/dev/pts
    mount -t devpts devpts ${ROOTFS}/dev/pts

    # do the work
    $CHROOT $ROOTFS /bin/installer >$CHRFIFO 2>&1 || {
        error "E: Second stage build in chroot failed !"
        error "E: Please see the log to see what went wrong."
        rm -f $CHRPID
        (cleanup)
        exit 1
    } &

    PID=$!
    echo $PID > $CHRPID
    while read line; do
        if [ ! "$(echo $line|grep 'qemu: Unsupported syscall')" ] && \
            [ ! "$(echo $line|grep 'Unsupported ioctl:')" ];then
            log "${line}"
        else
            echo "${line}" >> $LOG
        fi
    done <$CHRFIFO

    wait $PID

    umount -f ${ROOTFS}/dev/pts
    umount -f ${ROOTFS}/proc

    rm -f $CHRFIFO
    rm -f $CHRPID

    log "I: Chroot done"
}

setup_serial()
{
    log "I: Setting up serial tty in image"

    if [ "$DIST" = "jaunty" ];then
        test -d $ROOTFS/etc/event.d/|| mkdir -p $ROOTFS/etc/event.d/
        cat > $ROOTFS/etc/event.d/$SERIAL_TTYS <<EOF
start on runlevel 2
start on runlevel 3
start on runlevel 4
start on runlevel 5

stop on runlevel 0
stop on runlevel 1
stop on runlevel 6

respawn
exec /sbin/getty 115200 $SERIAL_TTYS
EOF
    else
        test -d $ROOTFS/etc/init/|| mkdir -p $ROOTFS/etc/init/
        cat > $ROOTFS/etc/init/$SERIAL_TTYS.conf <<EOF
start on stopped rc RUNLEVEL=[2345]
stop on runlevel [!2345]

respawn
exec /sbin/getty 115200 $SERIAL_TTYS
EOF
    fi
}

use_swap()
{
    # if normal user, use swap as a file
    if [ "$NOROOT" ]; then
        SWAPFILE=$BUILDDIR/swapfile
        log "I: Creating a normal swapfile for VM (non-root)"
    else
        TMPMOUNT=$BUILDDIR/tmpfs
        SWAPFILE=$TMPMOUNT/swapfile
        log "I: Creating swapfile in tmpfs for VM"
        mkdir -p $TMPMOUNT >>$LOG 2>&1
        mount -t tmpfs -o size=$(($SWAPSIZE*1048576)) tmpfs $TMPMOUNT >>$LOG 2>&1
    fi

    dd if=/dev/zero of=$SWAPFILE bs=1048576 count=$(($SWAPSIZE-8)) >>$LOG 2>&1
    mkswap -f $SWAPFILE >>$LOG 2>&1
    SWAPCMD="swapon /dev/sdb"
}

setup_kernel_image()
{
    log "I: Downloading kernel image (deb) from external site"

    KERNEL_IMG=${KERNEL_URL##*/}
    test -d $ROOTFS/tmp/ || mkdir -p $ROOTFS/tmp/

    if [ "$RESTORE_PACKAGE_CACHE" ] && \
        [ -f "$CACHEDIR/kernel/$KERNEL_IMG" ];then
        log "I: Found cached $KERNEL_IMG, skipping download"
        cp $CACHEDIR/kernel/$KERNEL_IMG $ROOTFS/tmp
    else
        KERNELDIR=$(mktemp -d)
        wget --directory-prefix=$KERNELDIR --quiet $KERNEL_URL
        log "I: $KERNEL_IMG download complete"
        cp $KERNELDIR/$KERNEL_IMG $ROOTFS/tmp

        if [ "$COPY_PACKAGE_CACHE" ];then
            mkdir -p $CACHEDIR/kernel
            cp $KERNELDIR/$KERNEL_IMG $CACHEDIR/kernel
        fi
        rm -rfd $KERNELDIR
    fi

    #Hack dpkg -i fails, no postinstall script is run anyways, so lets just extract it.
    KERNEL_IMAGE_CMD="dpkg -x /tmp/$KERNEL_IMG /"

    KERNEL_IMG_REL=${KERNEL_IMG##*linux-image-}
    KERNEL_IMG_REL=$(echo $KERNEL_IMG_REL | awk -F_ '{print $1}')

    KERNEL_IMAGE_CREATE_INITRAMFS="update-initramfs -c -k $KERNEL_IMG_REL"
}

get_vm_kernel()
{
    if [ "$RESTORE_PACKAGE_CACHE" ];then
        cp $CACHEDIR/vmkernel/qemu-vmlinuz $BUILDDIR/qemu-vmlinuz
    else
        KERNEL="http://ports.ubuntu.com/ubuntu-ports/dists/lucid/main/installer-armel/current/images/versatile/netboot/vmlinuz"
        LANG=C wget -O $BUILDDIR/qemu-vmlinuz $KERNEL >>$LOG 2>&1
        if [ "$COPY_PACKAGE_CACHE" ];then
            mkdir -p $CACHEDIR/vmkernel/
            cp $BUILDDIR/qemu-vmlinuz $CACHEDIR/vmkernel/
        fi
    fi
}

extract_kernel_image()
{
    mount_image

    if ls $MOUNTPOINT/boot/vmlinuz-* >/dev/null 2>&1;then
        log "I: Found vmlinuz at the rootfs, copying it to $DIR"
        cp $MOUNTPOINT/boot/vmlinuz-* $DIR
    fi

    if ls $MOUNTPOINT/boot/initrd.img-* >/dev/null 2>&1;then
        log "I: Found initrd.img at the rootfs, copying it to $DIR"
        cp $MOUNTPOINT/boot/initrd.img-* $DIR
    fi

    umount_image
}

clean_package_cache()
{
    log "I: Removing cached files"
    rm -rfv $CACHEDIR/* >> $LOG 2>&1
    # just runs cleanup if we don't need to create a rootfs
    if [ ! "${FQDN}" ];then
        NOSAVELOG=1
        cleanup
    fi
}

save_package_cache()
{
    log "I: caching packages for later use"

    mount_image

    mkdir -p $CACHEDIR
    cp -up $MOUNTPOINT/var/cache/apt/archives/*.deb $CACHEDIR/ || true

    mkdir -p $CACHEDIR/lists
    cp -p $MOUNTPOINT/var/lib/apt/lists/* $CACHEDIR/lists/ || true

    if [ "$NOROOT" ];then
        rm -f $MOUNTPOINT/var/cache/apt/archives/*.deb
    else
        $CHROOT $MOUNTPOINT apt-get clean
    fi

    umount_image
}

restore_package_cache()
{
    log "I: Restoring cached packages (may take a while)..."

    mkdir -p $ROOTFS/var/cache/apt/archives
    cp -vp $CACHEDIR/*.deb $ROOTFS/var/cache/apt/archives/ >> $LOG 2>&1
    mkdir -p $ROOTFS/var/lib/apt/lists/
    cp -vp $CACHEDIR/lists/* $ROOTFS/var/lib/apt/lists/ >> $LOG 2>&1 || true
    APT_UPDATE=""
    APT_FORCE="--allow-unauthenticated"
}

add_extra_mirror()
{
    EXRA_MIRROR_CMD="echo \"deb ${EXTRAMIRROR} ${DIST} ${COMPONENTS}\" >>/etc/apt/sources.list"
}

roll_tarball()
{
    # create a rootfs tgz
    log "I: Creating tarball from rootfs"

    mount_image

    cd $MOUNTPOINT >>$LOG 2>&1
    LANG=C tar czvf ../armel-rootfs-$STAMP.tgz . >>$LOG 2>&1
    mv ../armel-rootfs-$STAMP.tgz $DIR >>$LOG 2>&1

    echo "I: ARM rootfs created as $DIR/armel-rootfs-$STAMP.tgz"

    cd - >/dev/null 2>&1

    umount_image
}

save_qemu_img()
{
    cp $IMAGENAME $DIR
    if [ "$SUDO_USER" ]; then
        chown $SUDO_USER $DIR/qemu-armel-$STAMP.img
    fi
    echo "I: Qemu image saved as $DIR/qemu-armel-$STAMP.img"
}

# target system name
FQDN=""

# target user
NEWUSER=""
FULLNAME="Ubuntu System User"
PASSWD=""

# target package selection
SELECTION="" # change here to install ubuntu-desktop
# kbytes
IMAGESIZE="1048576" # 1G, make this 3G for an ubuntu-desktop install
BYTEINODE="4096"

# default to the build system locale
. /etc/environment
. /etc/default/locale
NEWLOCALE=$LANG

# default to the build system keyboard setup
KBDATA="/etc/default/console-setup"
XKBL=$(grep XKBLAYOUT ${KBDATA}|tr -d '"'|cut -d '=' -f2)
XKBM=$(grep XKBMODEL ${KBDATA}|tr -d '"'|cut -d '=' -f2)
XKBV=$(grep XKBVARIANT ${KBDATA}|tr -d '"'|cut -d '=' -f2)
XKBO=$(grep XKBOPTIONS ${KBDATA}|tr -d '"'|cut -d '=' -f2)

# default to the build system timezone
TZONE=$(cat /etc/timezone)

# target apt setup
DIST=$(lsb_release -cs)
MIRROR="http://ports.ubuntu.com/ubuntu-ports"
COMPONENTS="main universe"

# user-specified script
USER_SCRIPT=""

# builder defaults
DEFGROUPS="admin,adm,dialout,cdrom,floppy,audio,dip,video"
STAMP=$(date +%Y%m%d%H%M)
BUILDDIR=$(mktemp -d)
MOUNTPOINT="${BUILDDIR}/tmpmount"
ROOTFS="${BUILDDIR}/rootfs"
IMAGENAME="${BUILDDIR}/qemu-armel-$STAMP.img"
QEMUPID="${BUILDDIR}/qemu.pid"
QEMUFIFO="${BUILDDIR}/qemufifo"
DBPID="${BUILDDIR}/debootstrap.pid"
DBFIFO="${BUILDDIR}/dbfifo"
CHRFIFO="${BUILDDIR}/chrootfifo"
CHRPID="${BUILDDIR}/chroot.pid"
DIR="$(pwd)"
NOSWAP=1
SWAPSIZE=256

# general defaults
LOG="$BUILDDIR/${PROGRAM}-$STAMP.log"

PACKAGE_CLEANUP="apt-get clean"
PACKAGE_CLEANUP_SUB="${PACKAGE_CLEANUP}"
APT_UPDATE="apt-get update"
APT_FORCE=""
EXRA_MIRROR_CMD=""
CHROOT="eval TMPDIR=/tmp chroot"

# parse commandline options
GETOPT=`getopt -o hf:l:p:n:s:i:g:m:c:t:x:d:q --long help,fqdn:,login:,\
password:,fullname:,seed:,imagesize:,manifest:,mirror:,components:,timezone:,\
kblayout:,kbmodel:,kbvariant:,kboptions:,locale:,keepimage,notarball,script:,\
serial:,doswap,swapsize:,dist:,quiet,kernel-image:,copy-package-cache,\
restore-package-cache,clean-package-cache,extra-mirror:,no-root,version \
-n "$PROGRAM" -- "$@"`
if [ $? != 0 ]; then usage; exit 1; fi
eval set -- "$GETOPT"
while true ; do
    case $1 in
        -h|--help)
            usage
            shift
            ;;
        -f|--fqdn)
            FQDN="$2"
            shift 2
            ;;
        -l|--login)
            NEWUSER="$2"
            shift 2
            ;;
        -p|--password)
            PASSWD="$2"
            shift 2
            ;;
        -n|--fullname)
            FULLNAME="$2"
            shift 2
            ;;
        -s|--seed)
            SELECTION="$(echo $2|tr ',' ' ')"
            shift 2
            ;;
        -i|--imagesize)
            if [ "$(echo $2|grep '^[0-9]*M$')" ];then
                IMAGESIZE="$((1024*${2%M}))"
            elif [ "$(echo $2|grep '^[0-9]*G$')" ];then
                IMAGESIZE="$((1024*1024*${2%G}))"
            else
                echo "E: Size needs to be in gigabyte or megabyte (M|G)"
                exit 1
            fi
            shift 2
            ;;
        -g|--manifest)
            SELECTION="$(cat "${2}" | sed ':a;N;$!ba;s/\n/ /g')"
            shift 2
            ;;
        -m|--mirror)
            MIRROR="$2"
            shift 2
            ;;
        -c|--components)
            COMPONENTS="$(echo $2|tr ',' ' ')"
            shift 2
            ;;
        -t|--timezone)
            if [ ! "$(echo $2|grep '/')" ];then
                echo "E: Need a proper timezone"
                usage
            fi
            TZONE="$2"
            shift 2
            ;;
        --kblayout)
            XKBL="$2"
            shift 2
            ;;
        --kbmodel)
            XKBM="$2"
            shift 2
            ;;
        --kbvariant)
            XKBV="$2"
            shift 2
            ;;
        --kboptions)
            XKBO="$2"
            shift 2
            ;;
        -x|--locale)
            if [ ! "$(echo $2|grep '_')" ];then
                echo "E: Need a proper locale"
                usage
            fi
            NEWLOCALE="$2"
            shift 2
            ;;
        --keepimage)
            KEEPIMAGE=1
            shift
            ;;
        --notarball)
            NOTARBALL=1
            KEEPIMAGE=1
            shift
            ;;
        --script)
            USER_SCRIPT="$2"
            shift 2
            ;;
        --serial)
            SERIAL_TTYS="$2"
            SERIAL=1
            shift 2
            ;;
        --doswap)
            NOSWAP=""
            shift
            ;;
        --swapsize)
            SWAPSIZE="$2"
            shift 2
            ;;
        -d|--dist)
            DIST="$2"
            shift 2
            ;;
        -q|--quiet)
            QUIET=1
            shift
            ;;
        --kernel-image)
            KERNEL_IMAGE=1
            KERNEL_URL="$2"
            shift 2
            ;;
        --copy-package-cache)
            COPY_PACKAGE_CACHE=1
            PACKAGE_CLEANUP=""
            PACKAGE_CLEANUP_SUB=""
            shift
            ;;
        --restore-package-cache)
            RESTORE_PACKAGE_CACHE=1
            APT_UPDATE=""
            shift
            ;;
        --clean-package-cache)
            CLEAN_PACKAGE_CACHE=1
            shift
            ;;
        --extra-mirror)
            EXTRAMIRROR=$2
            shift 2
            ;;
        --no-root)
            if [ "$(id -u)" -eq 0 ];then
                echo "You are root, why would you like to run with --no-root?"
                exit 2
            fi
            NOROOT=1
            shift
            ;;
        --version)
            print_version
            exit 0
            ;;
        --)
            shift
            break
            ;;
        *)
            echo "Internal error!";
            exit 1
            ;;
    esac
done

# check if we have at least hostname
if [ ! "${FQDN}" ] && [ ! "$CLEAN_PACKAGE_CACHE" ];then
    usage
fi

# we need root
if [ $(id -u) != 0 ] && [ ! "$NOROOT" ];then
    echo "You should run $PROGRAM as root unless you explicitly request it by giving --no-root"
    exit 2
fi

# check if we're doing native arm work
ARCH=$(uname -m)
if echo $ARCH | grep -q "^armv[5-7].*"; then
    IS_NATIVE=1
    KEEPIMAGE=""

    # check if we're able to run the desired arm code
    if [ "$ARCH" = "armv5tel" ] && [ "$DIST" != "jaunty" ];then
        echo "Only jaunty is supported for armv5"
        exit 2
    elif [ "$ARCH" = "armv6l" ] && [ "$DIST" != "jaunty" ] && \
                    [ "$DIST" != "karmic" ];then
        echo "Only jaunty and karmic are supported for armv6"
        exit 2
    fi
fi

# in case the user request to skip tarball and we're native
if [ "$IS_NATIVE" ] && [ "$NOTARBALL" ];then
    echo "In a native run only a tarball is generated, so requesting --notarball makes rootstock create nothing"
    exit 2
fi

log "I: Running on a $ARCH machine"

# set up the cache DIR and clean it if needed
if [ "$NOROOT" ];then
    CACHEDIR="${HOME}/.cache/rootstock/archives"
else
    CACHEDIR="/var/cache/rootstock/archives"
fi
if [ "$CLEAN_PACKAGE_CACHE" ];then
    clean_package_cache
fi

# find if we should run full vm or just user emulation
if [ "$NOROOT" ] || [ ! "$(which qemu-arm-static)" -a ! "$IS_NATIVE" ];then
    log "I: Second stage will run inside a full virtual machine"
    RUNVM=1
else
    # when running in a chroot environment swap is useless
    NOSWAP=1
fi

if [ "$RUNVM" ] && [ ! $(which qemu-system-arm) ];then
    echo "qemu not installed, please use:"
    echo "sudo apt-get install qemu"
    echo "(or on ubuntu > karmic sudo apt-get install qemu-kvm-extras)"
    echo "to install the qemu package !"
    exit 1
fi

if [ ! $(which debootstrap) ];then
    echo "debootstrap not installed, please use:"
    echo "sudo apt-get install debootstrap"
    echo "to install the debootstrap package !"
    exit 1
fi

if [ ! -f /usr/share/debootstrap/scripts/$DIST ];then
  echo "Your debootstrap installation does not seem to have support for the $DIST distribution"
  exit 5
fi

# process vars
AREA=${TZONE%%/*}
ZONE=${TZONE#*/}

# generate the user password
PW=$(perl -e 'print crypt($ARGV[0], "qemuonarm")', $PASSWD)

# set up the rootfs
if [ ! "$NOROOT" ]; then
    ROOTFS=$MOUNTPOINT
    if [ ! "$IS_NATIVE" ];then
        # if we're root and not native, use qemu and mount the image as loop
        create_qemu_image
        mount_image
    fi
fi
if [ ! -d $ROOTFS ];then
    mkdir -p $ROOTFS >>$LOG 2>&1
fi

run_first_stage

# restore cached packages from host machine
if [ "$RESTORE_PACKAGE_CACHE" ];then
    restore_package_cache
fi

if [ "$EXTRAMIRROR" ];then
    add_extra_mirror
fi

# basic fstab
echo "proc /proc proc defaults 0 0" >$ROOTFS/etc/fstab
if [ "$KEEPIMAGE" ];then
    echo "/dev/sda / auto errors=remount-ro 0 1" >>$ROOTFS/etc/fstab
fi

if [ -e /etc/apt/apt.conf.d/proxy ];then
    mkdir -p $ROOTFS/etc/apt/apt.conf.d
    cp /etc/apt/apt.conf.d/proxy $ROOTFS/etc/apt/apt.conf.d/proxy
fi

if [ "$http_proxy" ];then
    # try to translate name to IP so it can be used inside qemu (mDNS)
    PROXY_ADDR=$(echo $http_proxy | sed -e "s/\(.*\/\/\)\?\(.*@\)\?//" -e "s/:.*//")
    PROXY_IP=$(getent hosts $PROXY_ADDR | head -n 1 | awk -F' ' '{print $1}')
    if [ "$PROXY_IP" ];then
        PROXY=$(echo $http_proxy | sed -e "s/$PROXY_ADDR:/$PROXY_IP:/")
    else
        # could not translate, using original content
        PROXY=$http_proxy
    fi
fi

# set up basic networking
NETWORKDIR="$ROOTFS/etc/network"
INTERFACES="$NETWORKDIR/interfaces"
mkdir -p $NETWORKDIR

echo "auto lo" >$INTERFACES
echo "iface lo inet loopback" >>$INTERFACES

# set up resolver
HOSTS="$ROOTFS/etc/hosts"
echo "127.0.0.1 localhost" >$HOSTS
echo "127.0.1.1 ${FQDN}" >>$HOSTS

echo "${FQDN}" >$ROOTFS/etc/hostname

if [ "$KERNEL_IMAGE" ];then
    setup_kernel_image
fi

# write installer script to image
cat > $BUILDDIR/installer <<EOF
#!/bin/bash
set -e

export MALLOC_CHECK_=0 # workaround for LP: #520465
export PATH
export LC_ALL=C
export DEBIAN_FRONTEND=noninteractive
export http_proxy="${PROXY}"

if [ -f "/debootstrap/debootstrap" ];then
    echo "I: Fixing root fs permission"
    chown -R 0:0 /

    echo "I: Running second stage"
    ${SECOND_STAGE}
fi

if [ "$RUNVM" ];then
    echo "I: Starting basic services in VM"

    mount -t proc proc /proc
    mount -t sysfs sys /sys
    mkdir -p /dev/pts
    mount -t devpts devpts /dev/pts

    udevd --daemon &
    hostname -F /etc/hostname
fi

dpkg-divert --add --local --divert /usr/sbin/invoke-rc.d.rootstock --rename /usr/sbin/invoke-rc.d
cp /bin/true /usr/sbin/invoke-rc.d

${SWAPCMD}

echo "deb ${MIRROR} ${DIST} ${COMPONENTS}" >/etc/apt/sources.list
echo "deb ${MIRROR} ${DIST}-updates ${COMPONENTS}" >>/etc/apt/sources.list
${EXRA_MIRROR_CMD}

if [ "$RUNVM" ];then
    ifconfig lo up
    ifconfig eth0 up
    dhclient eth0
fi

locale-gen --no-purge en_GB.UTF-8 || true
locale-gen --no-purge ${NEWLOCALE} || true
echo LANG=${NEWLOCALE} >>/etc/default/locale

sed -i -e 's/^XKBMODEL=.*\$/XKBMODEL="${XKBM}"/' /etc/default/console-setup || true
sed -i -e 's/^XKBLAYOUT=.*\$/XKBLAYOUT="${XKBL}"/' /etc/default/console-setup || true
sed -i -e 's/^XKBVARIANT=.*\$/XKBVARIANT="${XKBV}"/' /etc/default/console-setup || true
sed -i -e 's/^XKBOPTIONS=.*\$/XKBOPTIONS="${XKBO}"/' /etc/default/console-setup || true

echo ${AREA}/${ZONE} > /etc/timezone
cp -f /usr/share/zoneinfo/${AREA}/${ZONE} /etc/localtime || true

groupadd fuse || true

${APT_UPDATE}

${PACKAGE_CLEANUP}

PKGCOUNT=\$(LANG=C apt-get -s install ${SELECTION} |grep "newly installed"|cut -d ',' -f2|tr -d ' [a-z]')
echo "packagecount=\${PKGCOUNT:-1}"
[ -z "${SELECTION}" ] || apt-get -y ${APT_FORCE} install ${SELECTION}

groupadd admin || true
echo '%admin  ALL=(ALL) ALL' >>/etc/sudoers

if [ "${NEWUSER}" ] && [ "${PASSWD}" ];then
    if ! ERROR=\$(useradd -G "${DEFGROUPS}" -s /bin/bash -m -p ${PW} -c "${FULLNAME}" ${NEWUSER} 2>&1);then
        echo "E: Failed to add user '${NEWUSER}'"
        echo "E: \$ERROR"
        echo "E: Besides possible user name conflicts, while adding the user" \
             "a new group is created with the same name as the user, so" \
             "avoid using existing group names"
        exit 1
    fi
else
    echo "I: Enabling firstboot configuration (as no user/password" \
         "definition was found at the argument list)"
    PACKAGE="oem-config"
    if [ -n "\$(dpkg -l xserver-xorg 2>/dev/null|grep ^ii)" ];then
        if [ \$(which gdm) ];then
            PACKAGE="oem-config-gtk"
        elif [ \$(which kdm) ];then
            PACKAGE="oem-config-kde"
        fi
    fi
    apt-get install -y --no-install-recommends \$PACKAGE
    touch /var/lib/oem-config/run
    rm /usr/lib/ubiquity/plugins/ubi-tasks.py*
fi

${KERNEL_IMAGE_CMD}
${KERNEL_IMAGE_CREATE_INITRAMFS}

${PACKAGE_CLEANUP_SUB}

passwd -l root || true

rm -f /usr/sbin/invoke-rc.d
dpkg-divert --remove --rename /usr/sbin/invoke-rc.d

if [ -x /rootstock-user-script ]; then
    echo "I: Running user custom script"
    /rootstock-user-script
    rm -f /rootstock-user-script
fi

if [ "$RUNVM" ];then
    mount -n -o remount,ro -t ext3 /dev/sda / || true
    rm /bin/installer && reboot -fp
fi

EOF

# copy over user script
if [ "$USER_SCRIPT" ]; then
    cp "$USER_SCRIPT" "$ROOTFS/rootstock-user-script"
fi

if [ "$SERIAL" ];then
    setup_serial
fi

if [ ! "$NOSWAP" ];then
    use_swap
fi

mv $BUILDDIR/installer $ROOTFS/bin/ >>$LOG 2>&1
chmod +x $ROOTFS/bin/installer >>$LOG 2>&1

# runs the second stage
if [ "$RUNVM" ];then
    if [ "$NOROOT" ];then
        # if user, creates the ext3 fs for qemu, based on the rootfs
        create_rootfs_image
    else
        umount_image
    fi
    run_vm
else
    run_chroot
    umount_image
fi

# cache packages on host machine
if [ "$COPY_PACKAGE_CACHE" ];then
    save_package_cache
fi

# save vmlinuz and initrd.img for further usage
extract_kernel_image

# build a rootfs tarball
if [ ! "$NOTARBALL" ];then
    roll_tarball
fi

# save a qemu image
if [ "$KEEPIMAGE" ];then
    save_qemu_img
fi

# log, clean up and save a log
log "I: Rootstock finished successfully"
cleanup