#!/bin/bash
# Copyright (C) 2016 Ian Kelling
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# for setting up a new machine
# usage: $0 [-r] [HOSTNAME]
# HOSTNAME changes the machine's hostname

# tips:
# run any sudo command first so your pass is cached
# set the scrollback to unlimited in case something goes wrong


# send to registrar, glue records:
# for iankelling.org:

# ns1.iankelling.org 72.14.176.105
# ns1.iankelling.org 2600:3c00::f03c:91ff:fe6d:baf8
# ns2.iankelling.org 172.105.84.95
# ns2.iankelling.org 2a01:7e01::f03c:91ff:feb5:baec

# for zroe.org:

# ns1.zroe.org 72.14.176.105
# ns1.zroe.org 2600:3c00::f03c:91ff:fe6d:baf8
# ns2.zroe.org 172.105.84.95
# ns2.zroe.org 2a01:7e01::f03c:91ff:feb5:baec
#



####### begin setup environment #######


### make ssh interactive shell run better. for when running line interactively line by line
sudo bash -c '/a/exe/ssh-emacs-setup'

##### setup error handling
interactive=true  # set this to false to force set -x
[[ $- == *i* ]] || interactive=false
if ! $interactive; then
  set -x
fi
source /a/bin/errhandle/err

mkdir -p ~/.local
err-cleanup() {
  echo 1 >~/.local/distro-begin
}

source /a/bin/distro-functions/src/package-manager-abstractions

### setup logging
echo "$0: $(date): starting now)"


### sanity checking
if [[ $EUID == 0 ]]; then
  if getent passwd iank || getent passwd ian ; then
    echo "$0: error: running as root. unprivileged user exists. use it."
    exit 1
  else
    echo "$0: warning: running as root. I will setup users then exit"
  fi
fi


### arg parsing
recompile=false
emacs=false
if [[ -e /a/opt/emacs ]]; then
  emacs=true
fi
while [[ $1 == -* ]]; do
  case $1 in
    -r) recompile=true; shift ;;
    -e) emacs=false; shift ;;
  esac
done
if [[ $1 ]]; then
  export HOSTNAME=$1
fi


##### variables/env setup
script_dir="$(readlink -f "${BASH_SOURCE[@]}")"; script_dir=${script_dir%/*}
# shellcheck source=./pkgs
source $script_dir/pkgs
set +x
source /a/bin/distro-functions/src/identify-distros
$interactive || set -x
for f in kd x2 x3 frodo tp li bk je demohost kw sy bo; do
  eval "$f() { [[ $HOSTNAME == $f ]]; }"
done
codename=$(debian-codename)
bitfolk() { je || bk; }
has_wayland() { has_monitor && [[ $codename == buster ]]; }
has_x() { has_monitor && [[ $codename != buster ]]; }
has_monitor() { ! vps ; }
vps() { bitfolk || li; }
# linode actually has btrfs now, but we dont do anything with it.
has_btrfs() { ! vps; }
home_network() { ! vps && ! tp; }
has_p() { ! vps && ! tp; }
encrypted() { ! bitfolk; }
shopt -s extglob
export GLOBIGNORE="*/.:*/.."
umask 022
PATH="/a/exe:$PATH"
sed="sed --follow-symlinks"

####### end setup environment #######


##### begin setup encryption scripts ######
if encrypted; then
  # I tried making a service which was dependent on reboot.target,
  # but it happened too late in the shutdown process.
  sudo dd of=/etc/systemd/system/keyscripton.service <<'EOF'
[Unit]
Description=keyscripton
# This is triggered by reboot and when keyscriptoff stops.

# tried using graphical.target, but it made my display manager restart before rebooting.
# generally, I don't think targets order shutdown like they do startup.
# So, I did systemd-analyze plot > something.svg, and picked a reliably started
# service that happens late in the game.
After=ntp.service
DefaultDependencies=no
# not sure if needed, makes sure we shut down before reboot.target
Conflicts=reboot.target

[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/bin/true
ExecStop=/a/exe/keyscript-on

[Install]
WantedBy=keyscriptoff.service
EOF
  sudo systemctl daemon-reload # needed if the file was already there
  sudo systemctl enable keyscripton.service

  sudo dd of=/etc/systemd/system/keyscriptoff.service <<'EOF'
[Unit]
Description=keyscriptoff

[Service]
Type=oneshot
ExecStart=/a/exe/keyscript-off

[Install]
WantedBy=multi-user.target
EOF
  sudo systemctl daemon-reload # needed if the file was already there
  sudo systemctl enable keyscriptoff.service
  sudo systemctl start keyscriptoff.service

  pi rsync zstd

  ## /usr/share/doc/dropbear-initramfs/README.initramfs.gz
  ## claims we need to do this. but it works fine without it.
  # tmp=$(mktemp)
  # while read -r m _; do /sbin/modinfo -F filename "$m"; done </proc/modules | \
    #   sed -nr "s@^/lib/modules/$(uname -r)/kernel/drivers/net(/.*)?/([^/]+)\.ko\$@\2@p" \
    #   | sudo dd of=$tmp
  # if ! diff -q /etc/initramfs-tools/modules $tmp &>/dev/null; then
  #   sudo dd if=$tmp of=/etc/initramfs-tools/modules
  #   sudo /usr/sbin/update-initramfs -u -k all
  # fi
  #
  ## if we were creating an intall for a different machine needing different modules, we could include them all like this:
  ## find /lib/modules/*/kernel/drivers/net /lib/modules/*/kernel/net -type f -name '*.ko' -printf "%f\n" | sed 's/.ko$//' | sort -u >/etc/initramfs-tools/modules

  # this is here to cleanup the leftover from the comments above. remove it eventually.
  if [[ -s /etc/initramfs-tools/modules ]]; then
    sudo truncate -s0 /etc/initramfs-tools/modules
    sudo /usr/sbin/update-initramfs -u -k all
  fi

  # initram auth keys get setup with rootsshsync later on.
  $script_dir/rootsshsync

  ### To do a remote unlock: ssh and do this once per crypt disk:
  # echo -n PASS >/lib/cryptsetup/passfifo
  # or for buster+
  # cryptroot-unlock

fi
##### end setup encryption scripts ######


# disabled until its fixed up
# install-myqueue

# todo, it would be nice to cut down on some of the output


#### rerun my fai-time scripts
# already ran for pxe installs, but used for vps & updates
distro=$(distro-name)
case $distro in
  ubuntu|debian|trisquel)
    sudo bash -c ". /a/bin/fai/fai-wrapper && /a/bin/fai/fai/config/scripts/IANK/11-iank"
    ;;
  *)
    sudo bash -c ". /a/bin/fai/fai-wrapper &&
/a/bin/fai/fai/config/distro-install-common/end"
    ;;
esac

###### setup hostname
if [[ $HOSTNAME != $(cat /etc/hostname) ]]; then
  echo $HOSTNAME > /etc/hostname
  hostname -F /etc/hostname
fi
# office vpn dhcp adds to /etc/resolv.conf search office.fsf.org which
# makes that be #1 priority, which makes dnsmasq resolve that for
# unqualified hosts first, which means we skip the hosts file. Ya, its
# kinda dumb, but it is what it is. There is a dnsmasq config option to
# override it too, but this seems simpler.
sudo sed -i --follow-symlinks -f - /etc/hosts <<EOF
\$a 127.0.1.1 $HOSTNAME.b8.nz $HOSTNAME.office.fsf.org $HOSTNAME
/^127\.0\.1\.1/d
EOF

##### exit first stage if running as root
if [[ $EUID == 0 ]]; then
  if [[ ! -e /home/iank/.ssh/authorized_keys && ! -L /home/iank/.ssh/authorized_keys ]]; then
    sudo -u iank mkdir -p /home/iank/.ssh
    chmod 0700 /home/iank/.ssh
    sudo -u iank ln -sf /p/c/machine_specific/vps/subdir_files/.ssh/authorized_keys /home/iank/.ssh
  fi
  echo "$0: running as root. exiting now that users are setup"
  exit 0
fi


#### setup bash for root
for x in /a/c/{.bashrc,brc,brc2,.bash_profile,.profile,.inputrc,path_add_function}; do
  sudo -i <<EOF
PATH="/a/exe:$PATH"
lnf $x /root
EOF
done

###### link files
# convenient to just do all file linking in one place
sudo /a/exe/lnf -T /a/bin /b
sudo /a/exe/lnf -T /a/f /f
sudo /a/exe/lnf -T /var/log/exim4 /el
sudo /a/exe/lnf -T /a/f/ans /c
sudo /a/exe/lnf -T /nocow/t /t
if has_p; then
  lnf -T /p/News ~/News
fi
dirs=(/q/root /q/root/.editor-backups /q/root/.undo-tree-history)
sudo mkdir -p ${dirs[@]}
sudo chmod 600 ${dirs[@]}
sudo /a/exe/lnf /q/root/.editor-backups /q/root/.undo-tree-history \
     /a/opt /a/c/.emacs.d $HOME/mw_vars /k/backup /root
/a/bin/ds/install-my-scripts # needed for rootsshsync cronjob
sudo /a/exe/lnf /a/c/.vim /a/c/.vimrc /a/c/.gvimrc /root


###### do conflink
# vps needs bind group before conflink
if vps; then
  pi-nostart bind9
fi
if bitfolk; then
  pi-nostart unbound
fi
# this needs to be before installing pacserve so we have gpg conf.
conflink
rootsshsync
if [[ -e /etc/rootsudoenv ]]; then
  source /etc/rootsudoenv
fi



###### bash environment setup
set +x
err-allow
source /etc/profile.d/environment.sh
export LC_USEBASHRC=t
# shellcheck source=./.bashrc
source ~/.bashrc
err-catch
$interactive || set -x

##### use systemd-resolved for glibc resolutions

pi libnss-resolve

if [[ ! -L /etc/nsswitch.conf ]]; then
  sudo mkdir -p /etc/resolved-nsswitch
  sudo mv /etc/nsswitch.conf /etc/resolved-nsswitch
  sudo ln -sf /etc/resolved-nsswitch/nsswitch.conf /etc
fi

f=/etc/basic-nsswitch/nsswitch.conf
if [[ ! -e $f ]]; then
  sudo mkdir -p ${f%/*}
  sudo cp /etc/nsswitch.conf $f
  sudo sed -i --follow-symlinks 's/^ *hosts:.*/hosts: files dns myhostname/' $f
fi
case $HOSTNAME in
  bk|je)
    # je should be able to get along systemd-resolved, but ive had some odd
    # very intermittent dns failures with spamassassin, it seems it might only
    # be happening with systemd-resolved, so just use unbound
    # to make it consistent with the other hosts.
    sudo sed -i --follow-symlinks 's/^ *hosts:.*/hosts: files dns myhostname/' /etc/nsswitch.conf
    soff systemd-resolved
    sudo ln -sf 127.0.0.1-resolv/stub-resolv.conf /etc/resolv.conf
    sgo unbound
    # cautious measure to make sure resolution is working
    sleep 1
    ;;
  *)
    # default is
    # files mdns4_minimal [NOTFOUND=return] dns myhostname
    # mdns4 is needed for my printer and for bbb webrtc, not sure exactly why.
    # https://www.freedesktop.org/software/systemd/man/nss-resolve.html#
    # seems more important than some potential use case.
    # Interestingly, t9/t10 man page says use files before resolve, debian 10 says the opposite.
    # removing files makes hostname -f not actually give the fully qualified domain name.
    sudo sed -i --follow-symlinks 's/^ *hosts:.*/hosts: files resolve [!UNAVAIL=return] mdns4_minimal [NOTFOUND=return] myhostname/' /etc/resolved-nsswitch/nsswitch.conf
    ;;
esac

case $HOSTNAME in
  bk)
    sgo named
    ;;
esac


lines=(
  "/etc/resolved-nsswitch/nsswitch.conf r,"
  "/etc/basic-nsswitch/nsswitch.conf r,"
  # Aug 06 23:09:11 kd audit[3995]: AVC apparmor="DENIED" operation="connect" profile="/usr/bin/freshclam" name="/run/systemd/resolve/io.systemd.Resolve" pid=3995 comm="freshclam" requested_mask="wr" denied_mask="wr" fsuid=109 ouid=101
  # I dont know if this is quite the right fix, but I saw other sockets
  # in the nameservice files that were rw, so figured it was ok to add this and it worked.
  "/run/systemd/resolve/io.systemd.Resolve rw,"
)
f=/etc/apparmor.d/abstractions/nameservice
apparmor_reload=false
if [[ -e $f ]]; then
  for l in "${lines[@]}"; do
    if ! grep -qF "$l" $f; then
      sudo sed -i "/\/nsswitch.conf/a $l" $f
      apparmor_reload=true
      if ! grep -qF "$l" $f; then
        echo "$0: failed editing $f. investigate"
        exit 1
      fi
    fi
  done
  if $apparmor_reload && systemctl is-enabled apparmor; then
    m ser reload apparmor
  fi
fi



if dpkg -s -- nscd &>/dev/null; then
  sudo apt-get -y remove --purge --auto-remove nscd
  sudo systemctl stop nscd ||: # fails if already stopped
fi

# http://strugglers.net/~andy/blog/2020/12/03/starting-services-only-when-the-network-is-ready-on-debiansystemd/
if systemctl cat ifupdown-wait-online.service &>/dev/null; then
  sudo systemctl enable ifupdown-wait-online.service
fi

if bitfolk; then
  # remove line like this: 85.119.82.128   je.iankelling.org       je
  # it messes with hostname -f.
  sudo sed -ri "/^127\./n;/[[:space:]]$HOSTNAME\$/d" /etc/hosts
fi

if isdeb && [[ $(debian-codename) == aramo ]]; then
  sudo dd of=/etc/apt/preferences.d/aramo-jammy-missing <<'EOF'
Package: linux-libc-dev libmysqlclient21
Pin: release n=jammy,o=Ubuntu
Pin-Priority: 500
EOF
fi

# libfdk just has some patent worries.
# https://www.gnu.org/licenses/license-list.en.html#fdk
if isdeb && [[ $(debian-codename) == nabia ]]; then
  sudo dd of=/etc/apt/preferences.d/nabia-focal-missing <<'EOF'
Package: libfdk-aac1
Pin: release n=focal,o=Ubuntu
Pin-Priority: 500
EOF

  # it has a dependency python-paramiko that should be
  # python3-paramiko. the backport version is pretty close to the normal
  # version, so i just set the pin priority low for the backport and it
  # doesnt bother me
  sudo dd of=/etc/apt/preferences.d/nabia-backport <<'EOF'
Package: ansible
Pin: release a=nabia-backports
Pin-Priority: -100
EOF

fi


# to test when these become available in trisquel, copy the package list, remove the * chars, repaplace PACKAGES below
# for x in PACKAGES; do hr; e $x; if [[ $x == *- ]]; then s="^$x"; dpkg -l "$x*" | sed '0,/^+++/d'; else s="^$x\$"; fi; aptitude search "~O Trisquel ~n $s"; done


#### setup firefox backport
## ian: disabled. backports are not being published atm due to rust packaging issue
# if isdeb; then
#     codename=$(debian-codename)
#         if isdebian-stable && has_x; then
#             s dd of=/etc/apt/sources.list.d/mozilla-iceweasel.list <<EOF
#     deb http://mozilla.debian.net/ $codename-backports firefox-release
#     deb-src http://mozilla.debian.net/ $codename-backports firefox-release
# EOF
#             p update
#             # take care of mozilla signing errors in previous command
#             pi pkg-mozilla-archive-keyring
#         fi
#     p update
# fi


######  arch aur wrapper setup
if isarch; then
  #https://wiki.archlinux.org/index.php/Arch_User_Repository#Installing_packages
  sudo pacman -S --noconfirm --needed base-devel jq
  # pacaur seems to be the best, although it + cower has a few minor bugs,
  # its design goals seem good, so, going for it.

  aurpi() {
    for p in "$@"; do
      tempdir=$(mktemp -d)
      pushd $tempdir
      aurex "$p"
      makepkg -sri --skippgpcheck --noconfirm
      popd
      rm -rf $tempdir
    done
  }
  aurpi cower pacaur

  pi pacserve

  x=$(mktemp); /usr/bin/pacman.conf-insert_pacserve >$x
  sudo dd of=/etc/pacman.conf if=$x; rm $x
  sudo systemctl enable pacserve.service
  sudo systemctl start pacserve.service

fi

#### update all packages
pup


###### p1 packages install ######
pi ${p1[@]}


######## fix evbug bug ######
case $(debian-codename-compat) in
  xenial|bionic|focal|jammy)
    # noticed in flidas. dunno if it affects any others
    #https://bugs.launchpad.net/ubuntu/+source/module-init-tools/+bug/240553
    #https://wiki.debian.org/KernelModuleBlacklisting
    #common advice when searching is to use /etc/modprobe.d/blacklist.conf,
    #but that file won't work and will get automatically reverted
    sudo rmmod evbug ||: # might not be loaded yet
    file=/etc/modprobe.d/evbug.conf
    line="blacklist evbug"
    if [[ $(cat $file) != "$line" ]]; then
      sudo dd of=$file 2>/dev/null <<<"$line"
      sudo depmod -a
      sudo update-initramfs -u
    fi
    ;;
esac



#### arch specific early packages
case $(distro-name) in
  arch)
    # pkgfile is like apt-cache
    pi pkgfile
    sudo pkgfile --update
    ;;
esac

#### enable trim
# enable trim for volume delete, other rare commands
sudo $sed -ri 's/( *issue_discards\b).*/\1 = 1/' /etc/lvm/lvm.conf
if encrypted; then
  # flidas or so, these units arent built-in
  if isdeb && ! systemctl list-unit-files | grep ^fstrim.timer &>/dev/null ; then
    sudo cp /usr/share/doc/util-linux/examples/fstrim.{service,timer} /etc/systemd/system
  fi
  # does weekly trim
  sudo systemctl enable fstrim.timer
fi

##### make extra dirs
dirs=()
for dir in /mnt/{1,2,3,4,5,6,7,8,9} /nocow/t; do
  [[ -e $dir ]] && continue
  dirs+=($dir)
done
if (( ${#dirs[@]} )); then
  # mkdir -p on a mounted directory will fail. so will chown if its an ro mount
  sudo mkdir -p "${dirs[@]}"
  sudo chown $USER:$USER  "${dirs[@]}"
fi


# disabled temporarily
###### setup /i
# if home_network; then
#   tu /etc/fstab <<'EOF'
# /i/w  /w  none  bind,noauto  0 0
# /i/k  /k  none  bind,noauto  0 0
# EOF
#   if ! mountpoint /kr; then
#     sudo mkdir -p /kr
#     sudo chown $USER:user2 /kr
#   fi
#   if [[ $HOSTNAME == frodo ]]; then
#     tu /etc/fstab <<'EOF'
# /k  /kr  none  bind,noauto  0 0
# EOF
#   else
#     tu /etc/fstab <<'EOF'
# frodo:/k  /kr  nfs  noauto  0 0
# EOF
#   fi
#   sudo mkdir -p /i/{w,k}
#   for dir in /{i,w,k}; do
#     if mountpoint $dir; then continue; fi # already mounted
#     sudo mkdir -p $dir
#     sudo chown $USER:$USER $dir
#   done
#   # debian auto mounting of multi-disk encrypted btrfs is busted.  It is
#   # in jessie, and in stretch as of 11/26/2016 I have 4 disks in cryptab,
#   # based on 3 of those, it creates .device units for /dev/mapper/dev...
#   # then waits endlessly for them on bootup, after the /dev/mapper disks
#   # have already been created and exist. todo: create a simple repro
#   # for this in a vm and report it upstream.
#   pi nfs-common
#   sudo dd of=/root/imount <<'EOF'
# #!/bin/bash
# [[ $EUID == 0 ]] || exec sudo -E "${BASH_SOURCE[0]}" "$@"
# set -eE -o pipefail
# trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
# for dir in /i /k /kr /w; do
#     if ! mountpoint $dir &>/dev/null && \
  #             awk '{print $2}' /etc/fstab | grep -xF $dir &>/dev/null; then
#         if awk '{print $3}' /etc/fstab | grep -xF nfs &>/dev/null; then
#             mount $dir || echo "warning: failed to mount nfs on $dir"
#         else
#             mount $dir
#         fi
#     fi
# done
# EOF
#   sudo chmod +x /root/imount
#   sudo dd of=/etc/systemd/system/imount.service <<EOF
# [Unit]
# Description=Mount /i and related mountpoints
# Before=syncthing@$USER.service

# [Service]
# Type=oneshot
# ExecStart=/root/imount

# [Install]
# RequiredBy=syncthing@$USER.service
# # note /kr needs networking, this target is the simplest way to
# # time it when the network should be up, but not do something
# # dumb like delay startup until the network is up. It happens
# # at some time after network.target
# WantedBy=multi-user.target
# EOF
#   sudo systemctl daemon-reload # needed if the file was already there
#   sudo systemctl enable imount.service
#   sudo systemctl start imount.service
# fi
###### end setup /i

##### setup /nocow.
# a nocow dir that is common to multiple distros installed on the same system
dir=/nocow
if has_btrfs; then
  if ! mountpoint $dir; then
    subvol=/mnt/root/nocow
    if [[ ! -e $subvol ]]; then
      sudo btrfs subvolume create $subvol
      sudo chown root:1000 $subvol
      sudo chattr +C $subvol
    fi

    first_root_crypt=$(awk '$2 == "/" {print $1}' /etc/mtab)
    tu /etc/fstab <<EOF
$first_root_crypt  /nocow  btrfs  noatime,subvol=nocow$( ((`nproc` > 2)) && echo ,compress=zstd )  0 0
EOF
    sudo mkdir -p $dir
    sudo chown $USER:$USER $dir
    sudo mount $dir
  fi
else
  sudo mkdir -p $dir
fi

case $HOSTNAME in
  kd)
    tu /etc/fstab <<'EOF'
/dev/mapper/crypt_dev_ata-Samsung_SSD_870_QVO_8TB_S5VUNG0N900656V-part7  /d  btrfs  nofail,x-systemd.device-timeout=30s,x-systemd.mount-timeout=30s,noatime,compress=zstd,subvol=d  0 0
EOF
    if ! mountpoint /d &>/dev/null; then
      sudo mkdir -p /d
      if [[ -d /mnt/r7/d ]]; then
        sudo mount /d
      fi
    fi
    ;;
esac

if bitfolk; then
  sudo systemctl disable systemd-networkd
fi

##### setup email
primary-setup

#### ubuntu nicety
if isubuntu; then
  # disable crash report annoying dialogs.
  sudo dd of=/etc/default/apport <<<'enabled=0'
fi

##### install laptop hardware packages
if tp || x2 || x3 || bo || sy; then
  case $distro in
    debian)
      pi task-laptop
      ;;
    ubuntu|trisquel)
      # the exact packages that task-laptop would install, since ubuntu
      # doesn\'t have this virtual in practice package.
      pi avahi-autoipd bluetooth powertop iw wireless-tools wpasupplicant
      ;;
    # todo: other distros unknown
  esac
fi

if has_monitor; then

  # sway not packaged for t9, not bothering to build it yet since
  # i3 doesnt seem to tear and stutter on video anymore.
  if [[ $codename == buster ]]; then
    pi sway xwayland
  fi


  ###### install X
  # no recommends due to this bug: https://trisquel.info/en/issues/26525
  pi --no-install-recommends i3

  ##### install xinput
  case $(distro-name) in
    trisquel|ubuntu|debian)
      pi xinput
      ;;
  esac

  # recommends gets us geoclue (for darkening automatically at night i assume),
  # which recommends modemmanager, which is annoying to fix for the model01 keyboard.
  # commented because I dont use it much, and in nabia its named changed to redshift-gtk
  #pi --no-install-recommends gtk-redshift

  ##### setup X autostart
  # install for multiple display managers in case we use one
  dir=/etc/X11/xinit/xinitrc.d/
  sudo mkdir -p $dir
  sudo cp /a/bin/distro-setup/desktop-20-autostart.sh $dir

  ## disabled since i'm not using gdm atm
  # dir=/etc/gdm3
  # sudo mkdir -p $dir/PostLogin
  # sudo cp /a/bin/distro-setup/desktop-20-autostart.sh $dir/PostLogin/Default
  sudo mkdir -p /etc/lightdm/lightdm.conf.d
  # etiona lightdm.log:
  # [SeatDefaults] is now called [Seat:*], please update this configuration
  sudo dd of=/etc/lightdm/lightdm.conf.d/12-iank.conf <<'EOF'
[Seat:*]
# display-setup-script=/a/bin/ds/lightdm-start
session-setup-script=/a/bin/distro-setup/desktop-20-autostart.sh
EOF


  # originally used xkbcomp, documented in input-setup.sh, this doesnt
  # work under wayland, but its still useful for creating the config,
  # then modifying the system files.
  sudo sed -i.orig '/key *<KPMU> *{/,/}/s/KP_Multiply/underscore/g' /usr/share/X11/xkb/symbols/keypad

  ##### basic graphical packages
  pi konsole suckless-tools ssh-askpass
fi



##### install  emacs
if $emacs; then
  if isarch; then
    # emacs git build was broken last time i checked,
    x=$(mktemp -d)
    pushd $x
    aurex emacs-git
    makepkg -si --noconfirm
    popd
    rm -rf $x
    pi hunspell hunspell-en
  else
    if $recompile; then
      /a/bin/buildscripts/emacs
      /a/bin/buildscripts/mu4e
    else
      /a/bin/buildscripts/emacs --no-r
      /a/bin/buildscripts/mu4e --no-r
    fi
  fi
  # the first pup command can kill off our /etc/ mod, so rerun this
  /a/exe/ssh-emacs-setup
fi

if [[ $HOSTNAME == kd ]] && ! mountpoint /d &>/dev/null; then
  cat <<'EOFOUTER'
# if this is a fresh reinstall, need to run something like this
# to restore data:
mkdir /mnt/r7/btrbk
btrbk archive /mnt/rust1/btrbk /mnt/r7/btrbk
btrfs sub snap /mnt/r7/btrbk/LATEST /mnt/r7/d
mount /d
EOFOUTER
fi


echo 0 >~/.local/distro-begin
echo "$0: $(date): ending now"
echo "exiting with status 0"
exit 0