#!/bin/bash
# I, Ian Kelling, follow the GNU license recommendations at
# https://www.gnu.org/licenses/license-recommendations.en.html. They
# recommend that small programs, < 300 lines, be licensed under the
# Apache License 2.0. This file contains or is part of one or more small
# programs. If a small program grows beyond 300 lines, I plan to switch
# its license to GPL.

# Copyright 2024 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.


source /a/bin/bash-bear-trap/bash-bear

if [[ -s ~/.bashrc ]]; then . ~/.bashrc; fi

rebuild=false
case $1 in
  -r) rebuild=true ;;
esac

# https://sw.kovidgoyal.net/kitty/build/
deps=(
  libdbus-1-dev
  libxcursor-dev
  libxrandr-dev
  libxi-dev
  libxinerama-dev
  libgl1-mesa-dev
  libxkbcommon-x11-dev
  libfontconfig-dev
  libx11-xcb-dev
  liblcms2-dev
  libpython3-dev
  librsync-dev
)

pi ${deps[@]}

last_build=/a/opt/kitty-build-info/last-build
cd /a/opt/kitty
rev=$(cat $last_build 2>/dev/null) ||:
head=$(sudo -u zu git rev-parse HEAD)
if ! $recompile && ! $bootstrap && [[ $rev == "$head" ]]; then
  :
fi


# built it on one machine, the others it dies with the error illegal
# instruction. building is pretty quick, so just detect if our version
# works, and if not, rebuild and install.
# I had an idea to test the failure like so:
# timeout 5 kitty /bin/true, but that doesn't work over ssh
if ! $rebuild && ! /bin/true; then
  rebuild=true
fi

err-cleanup() {
  if mountpoint -q /usr/local/src/kitty; then
    s umount /usr/local/src/kitty
  fi
}

if $rebuild; then
  s mkdir -p /usr/local/src/kitty
  s mount -o bind /a/opt/kitty /usr/local/src/kitty

  s install -o zu -g zu -d /usr/local/src/kitty
  s chown -hR zu.zu /usr/local/src/kitty
  cd /usr/local/src/kitty
  # default plus go
  p=PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin:/usr/local/go/bin
  gp=/usr/local/src/kitty/go
  m sudo -u zu bash -c 'PATH=$PATH:/usr/local/go/bin; export GOPATH=/usr/local/src/kitty/go; go mod download -x'
  m sudo -u zu firejail --read-write=/usr/local/src/kitty --profile=makekitty env PATH=$p make clean
  m sudo -u zu firejail --read-write=/usr/local/src/kitty --profile=makekitty env PATH=$p GOPATH=$gp make
  cd /
  s umount /usr/local/src/kitty
  s chown -hR iank.iank /a/opt/kitty
fi

cd /a/opt/kitty
s rsync -ar --chown root:root --delete  __main__.py kitty logo kittens /usr/local/src/kitty
s rsync -ar --chown root:root ./terminfo/x/xterm-kitty /usr/share/terminfo/x/xterm-kitty
s ln -sf -T /usr/local/src/kitty/kitty/launcher/kitty /usr/local/bin/kitty

echo $head >$last_build