Magit 4.0 released

#!/bin/sh
#
# Open an Emacs magit window for the current Git workspace.
# If there is already an Emacs running daemon mode reuse it, else
# start one and connect to it.

die () { echo "$*"; exit 1; }

root=$(git rev-parse --show-toplevel) || die "Not in a Git clone"
cd "$root" || die "Cannot change to directory '$root'"

# See if there's a daemonized Emacs running; if not start one.
emacsclient -a false --eval nil -q -u \
    || { echo "Starting Emacs in daemon mode..."; emacs --daemon; } \
    || die "Could not start Emacs"

# See if Emacs is running in graphical mode
disp=$(emacsclient -a false --eval '(display-graphic-p)') \
    || die "Could not detect windows mode"

case $disp in
    (t) args=-n ;;
    (nil) args= ;;
    (*) echo "Unknown display results: $disp"; args= ;;
esac

# x-focus-frame should bring the frame to the front
emacsclient -a false $args -q -u -c \
            -e "(progn (magit-status \"$root\") (delete-other-windows) (x-focus-frame nil))" \
    || die "Could not start magit"

# Apparently this is useful on MacOS?
osascript=$(command -v osascript)
test -z "$osascript" || "$osascript" -e 'tell application "Emacs" to activate'