#!/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.

# usage: run with no arguments.
# Scripts that would interfere with unmounting /a, install them elsewhere.


set -eE -o pipefail
trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR

[[ $EUID == 0 ]] || exec sudo -E "${BASH_SOURCE[0]}" "$@"

x="$(readlink -f -- "${BASH_SOURCE[0]}")"; cd ${x%/*} # directory of this file

m() {
  "$@"
}

# be a bit more verbose if we are connected to a terminal
if test -t 0; then
  #echo debug: in terminal
  m() {
    echo "$*"
    "$@"
  }
fi

# note: previously used the install command, but it had this habit of
# like, once a month or so the files would be "not found" by a script
# trying to use them, within a few minute of the last time this
# ran. Very strange, dunno why, but rsync won't do anything unless these
# changed, so that should fix it.


rs() {
  # some files are intentionally not executable in git
  rsync -aSAX --chmod=755 --chown=root:root "$@"
}

source /a/bin/ds/script-files

rs ${my_bin_files[@]} /usr/local/bin
rs $my_lib_files /usr/local/lib


sre() {
  service=$1
  if [[ $(systemctl is-active $1.service ||:) != inactive ]]; then
    # just fire and forget. sometimes a script restart can fail, but then
    # then auto restart mechanism makes it succeed.
    m systemctl restart $service ||: &
  fi

}

tmpf=$(mktemp)
# SAX are acls and things, dont use but whatever
rs -i ${my_service_scripts[@]} /usr/local/bin >$tmpf
while read -r line; do
  file="${line:12}"
  #echo debug: file: $file
  case $file in
    btrfsmaint)
      sre btrfsmaintstop
      ;;
    mailtest-check)
      # we stopped removing the dashes in services recently.
      sre $file
      ;;
    *)
      sre ${file//-/}
      ;;
  esac
done <$tmpf
rm $tmpf