iankelling.org Git - distro-setup/blob - distro-begin

   1 #!/bin/bash -l
   2 # Copyright (C) 2016 Ian Kelling
   3 #
   4 # Licensed under the Apache License, Version 2.0 (the "License");
   5 # you may not use this file except in compliance with the License.
   6 # You may obtain a copy of the License at
   7 #
   8 #     http://www.apache.org/licenses/LICENSE-2.0
   9 #
  10 # Unless required by applicable law or agreed to in writing, software
  11 # distributed under the License is distributed on an "AS IS" BASIS,
  12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13 # See the License for the specific language governing permissions and
  14 # limitations under the License.
  15
  16
  17
  18
  19 # for bootstrapping a new machine
  20
  21 # in case we need it,
  22 # to make ssh interactive shell run better, we run this first.
  23 sudo bash -c 'source /a/c/.bashrc && source /a/exe/ssh-emacs-setup'
  24
  25
  26 # usage: $0 [-r] HOSTNAME
  27
  28 # tips:
  29 # run any sudo command first so your pass is cached
  30 # set the scrollback to unlimited in case something goes wrong
  31
  32 if [[ $EUID == 0 ]]; then
  33     if getent passwd ian; then
  34         echo "$0: error: running as root. unprivileged user exists. use it."
  35         exit 1
  36     else
  37         echo "$0: warning: running as root. I will setup users then exit"
  38     fi
  39 fi
  40
  41 interactive=true  # set this to false to force set -x
  42 [[ $- == *i* ]] || interactive=false
  43
  44 if ! $interactive; then
  45     set -x
  46     set -e -o pipefail
  47 fi
  48 set -E
  49 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?"' ERR
  50
  51 exec &> >(sudo tee -a /var/log/distro-begin)
  52 echo "$0: $(date): starting now)"
  53
  54 # headless=false # unused atm
  55 recompile=false
  56 # for copying to a new data fs
  57 bootstrapfs=false # old flag, needs new look before using.
  58 while [[ $1 == -* ]]; do
  59     case $1 in
  60         -r) recompile=true; shift ;;
  61     esac
  62 done
  63
  64 if [[ $1 ]]; then
  65     export HOSTNAME=$1
  66 fi
  67
  68 for f in iank-dev htpc treetowl x2 frodo tp li lj demohost; do
  69     eval "$f() { [[ $HOSTNAME == $f ]]; }"
  70 done
  71 has_p() { treetowl || x2 || frodo || tp || demohost; }
  72 has_x() { ! linode; }
  73 linode() { lj || li; }
  74 has_btrfs() { ! linode; }
  75 home_network() { ! linode; }
  76 encrypted() { has_p; }
  77
  78 shopt -s extglob
  79 export GLOBIGNORE=*/.:*/..
  80 umask 0002
  81
  82
  83 ####### end command line parsing
  84
  85 PATH="/a/exe:$PATH"
  86 sed="sed --follow-symlinks"
  87
  88 ##### begin setup encryption scripts ######
  89 if encrypted; then
  90     # I tried making a service which was dependent on reboot.target,
  91     # but it happened too late in the shutdown process.
  92     sudo dd of=/etc/systemd/system/keyscripton.service <<'EOF'
  93 [Unit]
  94 Description=Turn on automatic decryption of drives on boot
  95 # tried using graphical.target, but it made my display manager restart before rebooting.
  96 # generally, I don't think targets order shutdown like they do startup.
  97 # So, I did systemd-analyze plot > something.svg, and picked a reliably started
  98 # service that happens late in the game.
  99 After=ntp.service
 100 DefaultDependencies=no
 101 # not sure if needed, makes sure we shut down before reboot.target
 102 Conflicts=reboot.target
 103
 104 [Service]
 105 Type=oneshot
 106 RemainAfterExit=yes
 107 ExecStart=/bin/true
 108 ExecStop=/a/exe/keyscript-on
 109
 110 [Install]
 111 WantedBy=keyscriptoff.service
 112 EOF
 113     sudo systemctl daemon-reload # needed if the file was already there
 114     sudo systemctl stop keyscripton.service
 115     #    sudo systemctl start keyscripton.service
 116     sudo systemctl enable keyscripton.service
 117
 118     sudo dd of=/etc/systemd/system/keyscriptoff.service <<'EOF'
 119 [Unit]
 120 Description=Turn off automatic decryption of drives on boot
 121
 122 [Service]
 123 Type=oneshot
 124 ExecStart=/a/exe/keyscript-off
 125
 126 [Install]
 127 WantedBy=multi-user.target
 128 EOF
 129     sudo systemctl daemon-reload # needed if the file was already there
 130     sudo systemctl enable keyscriptoff.service
 131     sudo systemctl start keyscriptoff.service
 132 fi
 133 ##### end setup encryption scripts ######
 134
 135
 136 install-myqueue
 137
 138 # this script has been designed to be idempotent
 139 # todo, it would be nice to cut down on some of the output
 140
 141
 142 for x in /a/bin/errhandle/*-function; do
 143     source $x
 144 done
 145
 146
 147 set +e
 148 $interactive || errcatch
 149 set +x
 150 source /a/bin/distro-functions/src/identify-distros
 151 $interactive || set -x
 152
 153 if isfedora; then
 154     # comment out line disallowing calling sudo in scripts
 155     sudo $sed -i 's/^Defaults *requiretty/#\0 # ian commented/' /etc/sudoers
 156     # turn on magic sysrq commands for this boot cycle
 157     echo 1 > sudo dd of=/proc/sys/kernel/sysrq
 158     echo "kernel.sysrq = 1" > /etc/sysctl.d/90-sysrq.conf
 159     # selinux is not user friendly. Like, you enable samba, but you haven't run the magic selinux commands so it doesn't work
 160     # and you have no idea why.
 161     sudo $sed -i 's/^\(SELINUX=\).*/\1disabled/' /etc/selinux/config
 162     selinuxenabled && sudo setenforce 0
 163 fi
 164
 165
 166 # already ran for pxe installs, but used for vps & updates
 167 distro=$(distro-name)
 168 case $distro in
 169     ubuntu|debian|trisquel)
 170         sudo bash -c ". /a/bin/fai/fai-wrapper && /a/bin/fai/fai/config/scripts/GRUB_PC/11-ian"
 171         ;;
 172     *)
 173         sudo bash -c ". /a/bin/fai/fai-wrapper &&
 174 /a/bin/fai/fai/config/distro-install-common/end"
 175         ;;
 176 esac
 177
 178 if linode; then
 179     sudo $sed -i '/^127\.0\.1\.1/d' /etc/hosts
 180     echo "127.0.1.1 $HOSTNAME.b8.nz $HOSTNAME" | sudo tee -a /etc/hosts
 181 fi
 182
 183
 184 if [[ $EUID == 0 ]]; then
 185     echo "$0: running as root. exiting now that users are setup"
 186     exit 0
 187 fi
 188
 189
 190 #### begin link bashrc for root ######
 191 for x in /a/c/{.bashrc,brc,.bash_profile,.profile,.inputrc,path_add_function}; do
 192     sudo -i <<EOF
 193 PATH="/a/exe:$PATH"
 194 lnf $x /root
 195 EOF
 196 done
 197 #### end link bashrc repo for root ######
 198 # this needs to be before installing pacserve so we have gpg conf.
 199 conflink
 200
 201 set +x
 202 errallow
 203 source /etc/profile.d/environment.sh
 204 source ~/.bashrc
 205 $interactive || errcatch
 206 $interactive || set -x
 207
 208
 209 # passwordless sudo
 210 tu /etc/sudoers <<'EOF'
 211 ian  ALL=(ALL)  NOPASSWD: ALL
 212 Defaults  env_keep += SUDOD
 213 # makes ubuntu be like debian
 214 # https://unix.stackexchange.com/a/91572
 215 Defaults always_set_home
 216 EOF
 217
 218
 219 # enable magic sysrq keys. debian docs say it is already enabled by default
 220 isfedora && tu /etc/sysctl.conf 'kernel.sysrq = 1'
 221
 222
 223 if isdeb; then
 224     if isdebian-stable && has_x; then
 225         codename=$(debian-codename)
 226         s dd of=/etc/apt/sources.list.d/mozilla-iceweasel.list <<EOF
 227 deb http://mozilla.debian.net/ $codename-backports firefox-release
 228 deb-src http://mozilla.debian.net/ $codename-backports firefox-release
 229 EOF
 230         p update
 231         # take care of mozilla signing errors in previous command
 232         pi pkg-mozilla-archive-keyring
 233         p update
 234     else
 235         :
 236         # this would change stable to testing, but I set that up already.
 237         # It\'s just a no-op if its already testing.
 238         # sudo sed -ri 's!^( *[^ #]+ +[^ ]+ +)[[:alpha:]]+(.*)!\1testing\2!' /etc/apt/sources.list
 239         p update
 240     fi
 241 fi
 242
 243 if isarch; then
 244     #https://wiki.archlinux.org/index.php/Arch_User_Repository#Installing_packages
 245     sudo pacman -S --noconfirm --needed base-devel jq
 246     # pacaur seems to be the best, although it + cower has a few minor bugs,
 247     # its design goals seem good, so, going for it.
 248
 249     aurpi() {
 250         for p in "$@"; do
 251             tempdir=$(mktemp -d)
 252             pushd $tempdir
 253             aurex "$p"
 254             makepkg -sri --skippgpcheck --noconfirm
 255             popd
 256             rm -rf $tempdir
 257         done
 258     }
 259     aurpi cower pacaur
 260
 261     pi pacserve
 262
 263     x=$(mktemp); /usr/bin/pacman.conf-insert_pacserve >$x
 264     sudo dd of=/etc/pacman.conf if=$x; rm $x
 265     sudo systemctl enable pacserve.service
 266     sudo systemctl start pacserve.service
 267
 268     # strange error if just installing trash-cli: "pyalpm requires python",
 269     # so I see that it requires python2, and installing that manually fixes it.
 270     # I didn't see this on earlier installation, main thing which changed was
 271     # pacserve, so not sure if it's related.
 272     pi python2
 273 fi
 274
 275 pup
 276 pi trash-cli
 277
 278
 279 ###### link files ###########
 280 # convenient to just do all file linking in one place
 281
 282 # if it wasn't set already, we could set hostname here
 283 #echo treetowl | s dd of=/etc/hostname
 284 #s hostname -F /etc/hostname
 285 #HOSTNAME=$(hostname)
 286
 287
 288 s lnf -T /a/bin /b
 289 s lnf -T /nocow/t /t
 290
 291 if has_p; then
 292     lnf -T /p/News ~/News
 293 fi
 294
 295 s lnf /q/root/.editor-backups /q/root/.undo-tree-history \
 296   /a/opt /a/c/.emacs.d $HOME/mw_vars /k/backup /root
 297
 298 rootsshsync
 299
 300 s lnf /a/c/.vim /a/c/.vimrc /a/c/.gvimrc /root
 301
 302 # machine is going away
 303 # if [[ $HOSTNAME == htpc ]]; then
 304 #     lnf -T /i/Videos ~/Downloads
 305 # fi
 306
 307 if has_p; then
 308     # for dovecot
 309     lnf -T /i/k/mboxes ~/mail
 310 fi
 311
 312
 313 # basic needed packages
 314 case $(distro-name) in
 315     debian)
 316         if has_x; then
 317             if isdebian-stable; then
 318                 pi firefox/$codename-backports
 319             else
 320                 # for a while, firefox/unstable did not have
 321                 # dependencies satisfied by testing packages, and i hit
 322                 # a conflict, it wanted a newer libfontconfig1, but
 323                 # emacs build-deps wanted an older one. In this case,
 324                 # I switch to using firefox-esr. note: They seem
 325                 # to release a new esr version every 9 months or so.
 326                 pi firefox/unstable
 327                 s dd of=/etc/apt/preferences.d/firefox <<'EOF'
 328 Package: firefox
 329 Pin: release a=unstable
 330 Pin-Priority: 500
 331 EOF
 332             fi
 333         fi
 334         # for hosts which require nonfree drivers
 335         # i previously had extra packages listed here linux-image-amd64
 336         # firmware-linux-free linux-headers-amd64, but I
 337         # don\'t see any reason why. seems to work in testing without.
 338         # remove this note if it continues to work.
 339         p=firmware-linux-nonfree
 340         if apt-cache show $p &>/dev/null; then
 341             pi $p
 342         fi
 343         ;;&
 344     trisquel|ubuntu|debian)
 345         if has_x; then
 346             if isdebian-testing; then
 347                 pi xmacro/unstable # has no unstable deps
 348             else
 349                 pi xmacro
 350             fi
 351             pi gtk-redshift xinput
 352         fi
 353         ;;&
 354     fedora)
 355         p -y groupinstall development-tools c-development books admin-tools
 356         pi wget man-pages
 357         if has_x; then
 358             pi redshift-gtk
 359             # debian has this package patched to work, upstream is dead
 360             # tried using alien, pi alien, alien -r *.deb, rpm -Uhv *.rpm, got this error, so fuck it
 361             # file /usr/bin from install of xmacro-0.3pre_20000911-7.x86_64 conflicts with file from package filesystem-3.2-19.fc20.x86_64
 362             # http://packages.debian.org/source/sid/xmacro
 363             pi patch libXtst-devel
 364             cd $(mktemp -d)
 365             wget http://ftp.de.debian.org/debian/pool/main/x/xmacro/xmacro_0.3pre-20000911.orig.tar.gz
 366             wget http://ftp.de.debian.org/debian/pool/main/x/xmacro/xmacro_0.3pre-20000911-6.diff.gz
 367             ex *.gz
 368             patch -p0 < xmacro_0.3pre-20000911-6.diff
 369             cd xmacro-0.3pre-20000911.orig
 370             make
 371             sleep 1 # not sure why the following command couldn\'t find, so trying this
 372             # no make install target
 373             s cp -f xmacroplay xmacrorec xmacrorec2 /usr/local/bin
 374         fi
 375         ;;&
 376     arch)
 377         # like apt-cache
 378         pi pkgfile
 379         s pkgfile --update
 380         if has_x; then
 381             # libxtst is missing dep https://aur.archlinux.org/packages/xmacro/#news
 382             pi xorg-server redshift xorg-xinput libxtst xmacro
 383
 384             # background:
 385             # https://aur.archlinux.org/packages/xkbset/#comment-545419
 386             cert=$(mktemp)
 387             cat >$cert <<'EOF'
 388 -----BEGIN CERTIFICATE-----
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 438 -----END CERTIFICATE-----
 439 -----BEGIN CERTIFICATE-----
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 471 OjplXuXE0OPa0utaKC25Aplgom88L2Z8mEWcyfoB7zKOfD759AN7JKZWCYwk
 472 -----END CERTIFICATE-----
 473 -----BEGIN CERTIFICATE-----
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 486 VN3I5xI6Ta5MirdcmrS3ID3KfyI0rn47aGYBROcBTkZTmzNg95S+UzeQc0PzMsNT
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 493 BgNVHQ4EFgQUU3m/WqorSs9UgOHYm8Cd8rIDZsswDgYDVR0PAQH/BAQDAgEGMA8G
 494 A1UdEwEB/wQFMAMBAf8wDQYJKoZIhvcNAQEMBQADggIBAFzUfA3P9wF9QZllDHPF
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 502 qS3fuQL39ZeatTXaw2ewh0qpKJ4jjv9cJ2vhsE/zB+4ALtRZh8tSQZXq9EfX7mRB
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 505 jjxDah2nGN59PRbxYvnKkKj9
 506 -----END CERTIFICATE-----
 507 EOF
 508             cat /etc/ssl/certs/ca-certificates.crt >> $cert
 509             CURL_CA_BUNDLE=$cert pi xkbset
 510         fi
 511
 512         ;;&
 513     ubuntu|trisquel|debian|fedora)
 514         if has_x; then
 515             if isdebian-testing; then
 516                 # xkbset was in testing for quite a while, dunno
 517                 # why it\'s not anymore. Sometime I should check and
 518                 # see if it\'s back in testing, but the unstable package
 519                 # doesn\'t upgrade anything form testing, and it\'s tiny
 520                 # so I\'m not bothering to automate it.
 521                 pi xkbset/unstable
 522             else
 523                 pi xkbset
 524             fi
 525         fi
 526         ;;&
 527 esac
 528
 529 if has_x; then
 530     pi xbindkeys
 531 fi
 532 pi cryptsetup lvm2
 533 # enables trim for volume delete, other rare commands.
 534 sudo $sed -ri 's/( *issue_discards\b).*/\1 = 1/' /etc/lvm/lvm.conf
 535
 536 if encrypted; then
 537     if isdeb; then
 538         sudo cp /usr/share/doc/util-linux/examples/fstrim.{service,timer} /etc/systemd/system
 539     fi
 540     # does weekly trim
 541     sudo systemctl enable fstrim.timer
 542 fi
 543
 544 dirs=(/mnt/{1,2,3,4,5,6,7,8,9})
 545 s mkdir -p "${dirs[@]}"
 546 s chown ian:ian  "${dirs[@]}"
 547
 548
 549 tu /etc/fstab <<'EOF'
 550 /i/w  /w  none  bind,noauto  0 0
 551 /i/k  /k  none  bind,noauto  0 0
 552 EOF
 553
 554
 555 if ! mountpoint /kr; then
 556     s mkdir -p /kr
 557     s chown ian:traci /kr
 558 fi
 559
 560 if home_network; then
 561     if [[ $HOSTNAME == treetowl ]]; then
 562         tu /etc/fstab <<'EOF'
 563 /k  /kr  none  bind,noauto  0 0
 564 EOF
 565     else
 566         tu /etc/fstab <<'EOF'
 567 treetowl:/k  /kr  nfs  noauto  0 0
 568 EOF
 569     fi
 570 fi
 571
 572 s mkdir -p /q /i/{w,k}
 573 for dir in /{i,w,k}; do
 574     if mountpoint $dir; then continue; fi # already mounted
 575     s mkdir -p $dir
 576     s chown ian:ian $dir
 577 done
 578
 579 # not needed for all hosts, but rather just keep it uniform
 580 s mkdir -p /mnt/iroot
 581
 582 # debian auto mounting of multi-disk encrypted btrfs is busted.  It is
 583 # in jessie, and in stretch as of 11/26/2016 I have 4 disks in cryptab,
 584 # based on 3 of those, it creates .device units for /dev/mapper/dev...
 585 # then waits endlessly for them on bootup, after the /dev/mapper disks
 586 # have already been created and exist. todo: create a simple repro
 587 # for this in a vm and report it upstream.
 588 if has_btrfs || home_network; then
 589     pi nfs-common
 590     s dd of=/root/imount <<'EOF'
 591 #!/bin/bash
 592 [[ $EUID == 0 ]] || exec sudo -E "$BASH_SOURCE" "$@"
 593 set -eE -o pipefail
 594 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
 595 for dir in /i /mnt/iroot /k /kr /w; do
 596     if ! mountpoint $dir &>/dev/null && \
 597             awk '{print $2}' /etc/fstab | grep -xF $dir &>/dev/null; then
 598         if awk '{print $3}' /etc/fstab | grep -xF nfs &>/dev/null; then
 599             mount $dir || echo "warning: failed to mount nfs on $dir"
 600         else
 601             mount $dir
 602         fi
 603     fi
 604 done
 605 EOF
 606     s chmod +x /root/imount
 607
 608     s dd of=/etc/systemd/system/imount.service <<'EOF'
 609 [Unit]
 610 Description=Mount /i and related mountpoints
 611 Before=syncthing@ian.service
 612
 613 [Service]
 614 Type=oneshot
 615 ExecStart=/root/imount
 616
 617 [Install]
 618 RequiredBy=syncthing@ian.service
 619 # note /kr needs networking, this target is the simplest way to
 620 # time it when the network should be up, but not do something
 621 # dumb like delay startup until the network is up. It happens
 622 # at some time after network.target
 623 WantedBy=multi-user.target
 624 EOF
 625     sudo systemctl daemon-reload # needed if the file was already there
 626     sudo systemctl enable imount.service
 627     sudo systemctl start imount.service
 628 fi
 629
 630 dir=/nocow
 631 if has_btrfs; then
 632     if ! mountpoint $dir; then
 633         subvol=/mnt/root/nocow
 634         if [[ ! -e $subvol ]]; then
 635             s btrfs subvolume create $subvol
 636             s chown root:1000 $subvol
 637             s chattr +C $subvol
 638         fi
 639
 640         first_root_crypt=$(awk '$2 == "/" {print $1}' /etc/mtab)
 641         tu /etc/fstab <<EOF
 642 $first_root_crypt  /nocow  btrfs  noatime,subvol=nocow  0 0
 643 EOF
 644         s mkdir -p $dir
 645         s chown ian:ian $dir
 646         s mount $dir
 647     fi
 648 else
 649     sudo mkdir -p $dir
 650 fi
 651
 652 # ssh and probably some other things care about parent directory
 653 # ownership, and ssh doesn\'t allow any group writable parent
 654 # directories, so we are forced to use a directory structure similar
 655 # to home directories
 656 s chown root:ian /q
 657 s chmod 755 /q
 658
 659
 660 #  it comes with stretch and arch, but not jessie.
 661 # propogate /etc/udev/hwdb.d
 662 if which systemd-hwdb; then
 663     s systemd-hwdb update
 664     ser restart systemd-udev-trigger
 665 fi
 666
 667
 668 if isdeb; then
 669     # I\'ve had problems with postfix on debian:
 670     # on stretch, a startup ordering issue caused all mail to fail.
 671     # postfix changed defaults to only use ipv6 dns, causing all my mail to fail.
 672     # exim4 is default on debian, so I assume it would
 673     # be packaged better to avoid these types of things.
 674     # I haven\'t gotten around to getting a non-debian exim
 675     # setup.
 676     mail-setup exim4
 677 else
 678     mail-setup postfix
 679 fi
 680
 681 if isubuntu; then
 682     # disable crash report annoying dialogs.
 683     s dd of=/etc/default/apport <<<'enabled=0'
 684 fi
 685
 686 # fai sets this an old way that doesn't work for stretch.
 687 # no harm in setting it universally here.
 688 # using debconf-set-selection, the area gets reset to ETC
 689 # on my linode test machine after doing a dpkg-reconfigure, or a reinstall,
 690 # so we are using expect :(
 691 # I got a random error when running this, so I added a sleep
 692 # rather than trying to write a whole detect and wait loop.
 693 # E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable)
 694 # E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
 695 sleep 1
 696 s apt-get -y install --no-install-recommends expect
 697 s expect <<EOF
 698 set force_conservative 0
 699 spawn dpkg-reconfigure tzdata -freadline
 700 expect -nocase timeout {exit 1} "Geographic area:"
 701 send "12\r"
 702 expect -nocase timeout {exit 1} "Time zone:"
 703 send "11\r"
 704 expect eof
 705 exit
 706 EOF
 707
 708
 709 if has_x; then
 710     if isarch; then
 711         # install so it's build dependencies don't get removed.
 712
 713         # emacs git build is currently broken
 714         if false; then
 715             x=$(mktemp -d)
 716             pushd $x
 717             aurex emacs-git
 718             makepkg -si --noconfirm
 719             popd
 720             rm -rf $x
 721         else
 722             pi emacs
 723         fi
 724         pi hunspell hunspell-en
 725     else
 726         if $recompile; then
 727             /a/bin/buildscripts/emacs
 728         else
 729             /a/bin/buildscripts/emacs --no-r || /a/bin/buildscripts/emacs
 730         fi
 731     fi
 732
 733     # todo, figure this out for arch if we ever try out gnome.
 734     if ! isarch; then
 735         # install for multiple display managers in case we use one
 736         if isdeb; then
 737             dir=/etc/gdm3
 738         elif isfedora; then
 739             # fedora didn\'t have the 3.
 740             dir=/etc/gdm
 741         fi
 742         s mkdir -p $dir/PostLogin
 743         s command cp /a/bin/distro-setup/desktop-20-autostart.sh $dir/PostLogin/Default
 744         s mkdir /etc/lightdm/lightdm.conf.d
 745         s dd of=/etc/lightdm/lightdm.conf.d/12-ian.conf <<'EOF'
 746 [SeatDefaults]
 747 session-setup-script=/a/bin/distro-setup/desktop-20-autostart.sh
 748 EOF
 749     fi
 750
 751
 752     pi ghc sakura
 753     # todo, also note for work comp, scp opt/org-mode bin/build-scripts
 754
 755     # use the package manger version to install the cabal version
 756     pi cabal-install
 757     cabal update
 758     PATH="$PATH:$HOME/.cabal/bin"
 759
 760     # todo, on older ubuntu I used cabal xmonad + xfce,
 761     # see /a/bin/old-unused/xmonad-cabal.sh
 762
 763     # trying out the distros versions newer distros
 764     pi xmonad
 765     if isarch; then
 766         # for displaying error messages.
 767         # optional dependency in arch, standard elsewhere.
 768         pi xorg-xmessage xmonad-contrib xorg-xsetroot xorg-xinit
 769
 770         # https://wiki.archlinux.org/index.php/Xinitrc
 771         for homedir in /home/*; do
 772             cp /etc/X11/xinit/xinitrc $homedir/.xinitrc
 773             $sed -ri '/^ *twm\b/,$d' $homedir/.xinitrc
 774             tee -a $homedir/.xinitrc <<'EOF'
 775 /a/bin/desktop-20-autostart.sh
 776 xsetroot -cursor_name left_ptr
 777 exec xmonad
 778 EOF
 779         done
 780     else
 781         pi suckless-tools
 782     fi
 783     pi dmenu
 784
 785     if tp || x2; then
 786         case $distro in
 787             debian)
 788                 pi task-laptop
 789                 ;;
 790             ubuntu|trisquel)
 791                 # the exact packages that task-laptop would install, since ubuntu
 792                 # doesn\'t have this virtual in practice package.
 793                 pi avahi-autoipd bluetooth powertop iw wireless-tools wpasupplicant
 794                 ;;
 795             # todo: other distros unknown
 796         esac
 797     fi
 798 fi
 799
 800 # the first pup command can kill off our /etc/ mod, so rerun this
 801 /a/exe/ssh-emacs-setup
 802 echo "$0: $(date): ending now"