Update the plugins managment. Add the function 'omz-plugin' (inspired from bash-it)

plugins/available/emacs/emacsclient.sh

@@ -0,0 +1,28 @@
+#!/bin/sh
+
+_emacsfun()
+{
+    # get list of emacs frames.
+    frameslist=`emacsclient --alternate-editor '' --eval '(frame-list)' 2>/dev/null | egrep -o '(frame)+'`
+
+    if [ "$(echo "$frameslist" | sed -n '$=')" -ge 2 ] ;then
+        # prevent creating another X frame if there is at least one present.
+        emacsclient --alternate-editor "" "$@"
+    else
+        # Create one if there is no X window yet.
+        emacsclient --alternate-editor "" --create-frame "$@"
+    fi
+}
+
+
+# adopted from https://github.com/davidshepherd7/emacs-read-stdin/blob/master/emacs-read-stdin.sh
+# If the second argument is - then write stdin to a tempfile and open the
+# tempfile. (first argument will be `--no-wait` passed in by the plugin.zsh)
+if [ "$#" -ge "2" -a "$2" = "-" ]
+then
+    tempfile="$(mktemp emacs-stdin-$USER.XXXXXXX --tmpdir)"
+    cat - > "$tempfile"
+    _emacsfun --no-wait $tempfile
+else
+    _emacsfun "$@"
+fi