runemacs.sh

#!/bin/bash

# If called with no args, just find an open emacs window and bring it
# to the current desktop.
# If called with a file, try to open the file with emacsclient which
# will reuse an open emacs window if emacsserver is running.  Then
# it will bring that window to the current desktop.


shopt -s execfail

COMMAND=""

EMACS_WIN_TITLE="emacs -"

if [ -f ~/.emacs.d/.emacs ] && [ ! -h ~/.emacs ] ; then
    echo "Just so you know, your ~/.emacs file is not a symlink to"
    echo "the master copy in ~/.emacs.d/.emacs."
    echo "They may be out of sync..."
fi

EMACSCLIENT_FLAGS="-n"

if [ "$1" = "wait" ] ; then
    shift
    EMACSCLIENT_FLAGS=""
fi

if [ $(uname) = "Darwin" ] ; then
    EMACS_APP=${HOME}/Applications/Emacs.app
    if [ "$#" = "0" ] ; then
        # just focus emacs window
        open -a ${EMACS_APP}
    elif emacsclient --eval t > /dev/null 2>&1 ; then
        # echo "emacsclient responsive, using emacs server to open $@"
        # focus window
        open -a ${EMACS_APP}
        emacsclient $EMACSCLIENT_FLAGS "$@"
    else
        open -a ${EMACS_APP} "$@"
    fi
elif [ $(uname) = "Linux" ] ; then
    # show emacs first so we see any prompts

    if which wmctrl > /dev/null 2>&1 ; then
        if ! wmctrl -R "$EMACS_WIN_TITLE" ; then
            echo "Couldn't find window with title $EMACS_WIN_TITLE to show. "
            echo "Starting new emacs instance"
        fi
    fi

    if emacsclient --eval t > /dev/null 2>&1 ; then
        emacsclient $EMACSCLIENT_FLAGS "$@" > /dev/null 2>&1
    else
        # if connected via ssh, use always emacs-nox
        #if [ "$SSH_CONNECTION" ] || [ -z "$DISPLAY" ] ; then
        if [ -z "$DISPLAY" ] ; then
            emacs -nw "$@"
        else
            emacs "$@" &
        fi
    fi
fi