dotfiles/.local/bin/em

#!/bin/sh

if [ "$1" = "-h" ]; then
	cat <<EOF>&2
Usage: ${0##*/} [OPTIONS] [FILES]

Start emacsclient in terminal or in X window if possible. Server is started on
demand.

The calling script can have different names:

- emc: the Emacs instance is opened in the current terminal.
- emw: if graphical, tell the client to wait.

All emacsclient(1) options are supported:

$(emacsclient --help)

EOF
	exit
fi

if [ "${0##*/}" = "emc" ]; then
	## Force terminal mode
	param="-t"
else
	## If Emacs cannot start in graphical mode, -c will act just like -t.
	param="-c"
	if [ "${0##*/}" != "emw" ] && [ -n "$DISPLAY" ] && [ "$(emacs --batch -Q --eval='(message (if (fboundp '"'"'tool-bar-mode) "X" "TTY"))' 2>&1)" = X ]; then
		## Don't wait if not called with "emw" and if Emacs can start in graphical mode.
		## The Emacs batch test checks whether it was compiled with GUI suppport.
		param="$param -n"
	fi
fi

emacsclient $param -a "" "$@"