#!/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.



# note: starting emacs server can hang due to errors in init files
# which don't cause problems for non-server emacs. And things
# that aren't errors can cause hang too, like when I added gnus
# git to load path.

# I was experimenting with running
# under gdb always to diagnose any hangs/crashes
# and it won't work due to a gdb crash:
# gdb -ex="set follow-fork-mode child" -ex=r -ex=quit --args emacsclient -nc
# -n = --no-wait, go into background
# -c = create new frame instead of reusing the current frame
# -a = alternate editor, empty string makes it start emacs daemon.
# This is also set via env variable, but that doesn't propagate everywhere.

# emacs will hold open the directory it's started in, which
# will prevent unmounting it.
if [[ ! $1 ]]; then
    cd /
fi

if pgrep -u $EUID emacsclient && (( $# )); then
    emacsclient -a "" -n "$@"
else
    emacsclient -a "" -nc "$@"
fi