# NOTE: This file gets sourced by the actual buildscript - so place it in the same directory as the buildscript or adjust the path in the buildscript.

# simple check for apt-cacher-ng being active - if
# we have a successful connect on port 3142, assume
# it's apt-cacher-ng and use it
#
if nc -z 127.0.0.1 3142 ; then
    # bad idea with apt-cacher-ng, but will work with e.g. squid
    # export https_proxy=http://127.0.0.1:3128/
    # export http_proxy=http://127.0.0.1:3128/
    # export ftp_proxy=http://127.0.0.1:3128/

    export LB_APT_FTP_PROXY=http://127.0.0.1:3142/
    export LB_APT_HTTP_PROXY=http://127.0.0.1:3142/
fi

# set these to true to save source files
#export LB_SOURCE="true"
#export LBX2GO_GETSRC="true"

# Select ONE of the following git reposities
#export LBX2GO_CONFIG='https://gitlab.x2go.org/x2go/live-build-x2go.git::feature/openbox-magic-pixel-workaround-bullseye'
export LBX2GO_CONFIG='https://gitlab.x2go.org/x2go/live-build-x2go.git::feature/openbox-magic-pixel-workaround-bookworm'
#export LBX2GO_CONFIG='https://gitlab.x2go.org/x2go/live-build-x2go.git::feature/mate-minidesktop-bullseye'
#export LBX2GO_CONFIG='https://gitlab.x2go.org/x2go/live-build-x2go.git::feature/mate-minidesktop-bookworm'
#export LBX2GO_CONFIG='https://github.com/bauritcs/live-build-x2go.git::feature/openbox-magic-pixel-workaround-bookworm'
#export LBX2GO_CONFIG='https://github.com/bauritcs/live-build-x2go.git::feature/openbox-microdesktop-bookworm'
#export LBX2GO_CONFIG='https://github.com/bauritcs/live-build-x2go.git::feature/mate-minidesktop-bookworm'
# NOTES: 1) https://gitlab.x2go.org/x2go loosely corresponds to "stable"
#        2) https://github.com/bauritcs loosely corresponds to "heuler"
#        3) Minidesktop builds are work in progress and not production-ready. Cont(r)act us if you need them; feel free to submit patches.
#        4) Microdesktop builds are currently only available via https://github.com/bauritcs, but are actually more production-ready than the Minidesktop builds. Feel free to try them out!
#        5) Add "-stretch" to the end of the LBX2GO_CONFIG string to create a stretch build,
#           add "-buster" to the end of the LBX2GO_CONFIG string to create a buster build,
#           add "-bullseye" to the end of the LBX2GO_CONFIG string to create a bullseye build
#           add "-bookworm" to the end of the LBX2GO_CONFIG string to create a bookworm build

# Select ONE of the following LBX2GO_ARCH lines and comment out the others
# (feel free to use long or short options)
# for 64-Bit builds, use:
export LBX2GO_ARCH='-a amd64 -k amd64'
# 32-Bit, larger memory footprint, but faster performance on i686 and newer
#export LBX2GO_ARCH='-a i386 -k 686-pae'
# 32-Bit, smallest memory footprint - not available on buster
# export LBX2GO_ARCH='--architectures i386 --linux-flavours 586'
# For ARM (Raspberry Pi):
#export LBX2GO_ARCH='-a arm64'
#export LBX2GO_ARCH_MODEL='Pi4' # you can also set this to 'Pi3'. Note that there must not be any whitespace between 'Pi' and the digit.

# If you want to use the stock ISO image as created by this script, add your boot parameters here
# export LBX2GO_BOOTAPPEND_LIVE="boot=live components noswap lang=de vconsole.keymap=de keyboard-layouts=de locales=de_DE.UTF-8 silent quiet pubkey=http://x2go/x2go-tce/config/authorized_keys sessionsurl=http://x2go/x2go-tce/config/sessions toram"
export LBX2GO_BOOTAPPEND_LIVE="boot=live components noswap lang=de vconsole.keymap=de keyboard-layouts=de locales=de_DE.UTF-8 silent quiet sessionsurl=https://your_server_here/config/sessions pubkey=https://your_server_here/config/authorized_keys toram "

if echo -e "$LBX2GO_CONFIG" | grep -q "minidesktop"; then
        LBX2GO_BOOTAPPEND_LIVE+='timezone=Europe/Berlin noautologin ' # if you use nottyautologin instead of noautologin, an autologin will be set for the account "user", which conflicts our setting for the account "x2gothinclient"
        export LBX2GO_BOOTAPPEND_LIVE
elif echo -e "$LBX2GO_CONFIG" | grep -q "microdesktop"; then
        LBX2GO_BOOTAPPEND_LIVE+='timezone=Europe/Berlin '
        export LBX2GO_BOOTAPPEND_LIVE
elif echo -e "$LBX2GO_CONFIG" | grep -q "openbox"; then
        LBX2GO_BOOTAPPEND_LIVE+="fastpo "
        export LBX2GO_BOOTAPPEND_LIVE
fi

# detect if the selected git repo is meant to build a buster, stretch or jessie image
if [ -z "${LBX2GO_CONFIG##*-stretch}" ] ; then
    export LBX2GO_DEBVERSION="stretch"
    export LBX2GO_BOOTAPPEND_LIVE+=" net.ifnames=0 biosdevname=0"
elif [ -z "${LBX2GO_CONFIG##*-buster-heuler}" ] ; then
    export LBX2GO_DEBVERSION="buster"
    export LBX2GO_BOOTAPPEND_LIVE+=" net.ifnames=0 biosdevname=0"
elif [ -z "${LBX2GO_CONFIG##*-buster-heuler-bpo}" ] ; then
    export LBX2GO_DEBVERSION="buster"
    export LBX2GO_BOOTAPPEND_LIVE+=" net.ifnames=0 biosdevname=0"
elif [ -z "${LBX2GO_CONFIG##*-buster}" ] ; then
    export LBX2GO_DEBVERSION="buster"
    export LBX2GO_BOOTAPPEND_LIVE+=" net.ifnames=0 biosdevname=0"
elif [ -z "${LBX2GO_CONFIG##*-bullseye}" ] ; then
    export LBX2GO_DEBVERSION="bullseye"
    export LBX2GO_BOOTAPPEND_LIVE+=" net.ifnames=0 biosdevname=0"
elif [ -z "${LBX2GO_CONFIG##*-bookworm}" ] ; then
    export LBX2GO_DEBVERSION="bookworm"
    export LBX2GO_BOOTAPPEND_LIVE+=" net.ifnames=0 biosdevname=0"
    export LBX2GO_ARCHIVE_AREAS="non-free-firmware "
else
    export LBX2GO_DEBVERSION="jessie"
fi

# newer versions of live-build use the plural form of this parameter
if $(LANG=C lb config --help | grep -q bootloaders) ; then
    export LBX2GO_BOOTLOADERPARAMNAME="--bootloaders"
else
    export LBX2GO_BOOTLOADERPARAMNAME="--bootloader"
fi

# set boot loader type - leave this unchanged unless you really know what you're doing
if echo $LBX2GO_ARCH | awk '{print $2}' | grep -q "arm" ; then
    # This is part of our experimental ARM support
    LBX2GO_BOOTLOADERPARAMNAME=" "
    LBX2GO_BOOTLOADER=" "
else
    export LBX2GO_BOOTLOADER="syslinux"
fi

# These options are meant to reduce the image size.
# Feel free to adapt them after consulting "man lb_config"
# FIXME export LBX2GO_SPACE='--apt-indices none
export LBX2GO_SPACE='--apt-indices false
                     --apt-recommends false
                     --cache false
                     --checksums none
                     --firmware-binary false
                     --memtest none
                     --win32-loader false'

# fixing some peculiarities for Ubuntu here
if $(lsb_release -i | grep -i ubuntu -q ) ; then
        [ -f /usr/lib/live/build/binary_rootfs ] || ln -s /usr/lib/live/build/lb_binary_rootfs /usr/lib/live/build/binary_rootfs
        export LBX2GO_MIRROR="  -m http://deb.debian.org/debian
                                --mirror-chroot-security http://security.debian.org/debian-security/
                                --mirror-binary-security http://security.debian.org/debian-security/
                                --parent-mirror-chroot-security http://security.debian.org/debian-security/
                                --parent-mirror-binary-security http://security.debian.org/debian-security/"
else
        export LBX2GO_UPDATES="--updates true"
fi

# These are default values that should not require tuning
export LBX2GO_DEFAULTS="--backports true
                        --firmware-chroot true
                        --initsystem sysvinit
                        --security true
                        $LBX2GO_UPDATES
                        $LBX2GO_MIRROR
                        $LBX2GO_BOOTLOADERPARAMNAME $LBX2GO_BOOTLOADER
                        --distribution $LBX2GO_DEBVERSION"

# This is part of our experimental ARM support
if echo $LBX2GO_ARCH | grep -q 'arm' && ! dpkg --print-architecture | grep -q 'arm' ; then
    export LBX2GO_DEFAULTS+=" --bootstrap-qemu-arch arm64 \
                              --bootstrap-qemu-static /usr/bin/qemu-aarch64-static \
                              --apt-options \"--yes -oAPT::Default-Release=${LBX2GO_DEBVERSION} -oAPT::Immediate-Configure=false\" "
fi

# This is part of our experimental ARM support
# This makes sure the resulting disk image is at least 1GB in size, even though our build currently requires way less.
# It's unlikely that anyone will need to boot from a smaller partition; but if we let live-build pick the minimum size automatically,
# we will not have enough space left to copy the firmware blobs into the right location.
if echo $LBX2GO_ARCH | grep -q 'arm' ; then
    export LBX2GO_DEFAULTS+=" --binary-filesystem fat32 \
                              --hdd-size 1024"
fi

export LBX2GO_ARCHIVE_AREAS="main contrib non-free $LBX2GO_ARCHIVE_AREAS"

# This is for minidesktop builds and currently only adds firefox-esr language packs
# export LBX2GO_LANG='de'

# This is to optimize squashfs size, based on a suggestion by intrigeri from the TAILS team
# note that this will permanently change /usr/lib/live/build/binary_rootfs
#
#
if dpkg --print-architecture | grep -q 'arm' || echo $LBX2GO_ARCH | grep -q 'arm' ; then
        # on arm, these parameters must not be used; if they're there, we need to reinstall the package to undo our patch
        if grep -q -- '-Xbcj x86 -b 1024K -Xdict-size 1024K' /usr/lib/live/build/binary_rootfs; then
                apt install --reinstall live-build
        fi
        # feel free to experiment with these options, but be prepared for subtle breakage
        #export MKSQUASHFS_OPTIONS=' -Xbcj arm '
        #export MKSQUASHFS_OPTIONS=' -b 1024K -Xdict-size 1024K '
        #export MKSQUASHFS_OPTIONS=' -Xbcj arm -b 1024K -Xdict-size 1024K '
        export MKSQUASHFS_OPTIONS=''
else
        export MKSQUASHFS_OPTIONS=' -Xbcj x86 -b 1024K -Xdict-size 1024K '
fi

# This removes documentation, locales and man pages
# You can safely enable this if you intend to run X2GoClient in fullscreen mode all the time, or when building the ssh-only rescue image.
# For all other uses of the TCE-Live image creator (i.e. Minidesktop), your results may vary ... use at your own risk.
export LBX2GO_TCE_SHRINK="true"

# This patches the squashfs file into the initrd. Only parsed when image type "netboot" is set.
# Will require boot parameter live-media=/ instead of fetch=...
# Both TFTP client and TFTP server must support file transfers >32MB for this to work, if you want to deploy this initrd via TFTP,
# so e.g. atftpd will not work - tftpd-hpa, however, seems to have no problem with larger files.
# When using iPXE, you can use http instead of TFTP.
# This is especially helpful if you want to netboot via http and cannot use the server's IP, but must specify a DNS name - as "fetch=..." only understands IPs.
#export LBX2GO_NOSQUASHFS="true"

# Select ONE of the following LBX2GO_IMAGETYPE lines and comment out the others
# to create an iso image:
# export LBX2GO_IMAGETYPE='iso'
# to create an iso image that can also be dd'ed to USB media:
# export LBX2GO_IMAGETYPE='iso-hybrid'
# to create a netboot-image:
export LBX2GO_IMAGETYPE='netboot'
# /!\ The options below are NOT RECOMMENDED unless you use live-build from Debian Buster/Debian 10 or newer /!\
# to create an image that can be written to a hard disk (for older live-build versions, this always results
# in a "build failed" message, even though the build might have worked - use live-build from Buster or newer
# and things will work):
#export LBX2GO_IMAGETYPE='hdd'
## This might be required for hdd builds, especially for (u)efi
#export LBX2GO_BOOTLOADER="syslinux grub-pc grub-efi"
# to create a tar file only (seems to be broken in older live-build versions - Buster works):
# export LBX2GO_IMAGETYPE='tar'

# This is part of our experimental ARM support
if echo "$LBX2GO_ARCH" | grep -q "arm" ; then
        # enforce hdd image for arm at the moment (might need to support netboot later on too)
        if ! [ "$LBX2GO_IMAGETYPE" = "hdd" ] ; then
                echo "WARNING: Replacing selected image type with 'hdd'.  That's all we currently support on ARM."
                export LBX2GO_IMAGETYPE="hdd"
        fi
fi

if [ "$LBX2GO_IMAGETYPE" = "netboot" ]; then
        export LBX2GO_DEFAULTS+=" $LBX2GO_BOOTLOADER"
fi