Load desktop entry files(*.desktop) and show them in an application menu for launching commands

* Requirements
- py-configparser: parsing desktop entry file
- FiveAM: test framework (optional)
if you are using Quicklisp, then in the REPL:
#+BEGIN_SRC lisp
(ql:quickload :py-configparser)
(ql:quickload :FiveAM)
#+END_SRC

* Usage
- Load module
#+BEGIN_SRC lisp
(load-module "desktop-entry")
#+END_SRC

- Initialize ~*entry-list*~ with the ~*entry-paths*~
#+BEGIN_SRC lisp
(desktop-entry:init-entry-list)
#+END_SRC

- Add show-desktop-menu command to your keybindings, e.g.:
#+BEGIN_SRC lisp
(define-key *root-map* (kbd "m") "show-desktop-menu")
#+END_SRC

* Customize
- The ~*entry-paths*~ is defined as below,
  you can change the value of it before initialization
#+BEGIN_SRC lisp
(defvar *entry-paths*
  '(#P"/usr/share/applications"
    #P"~/.local/share/applications"))
#+END_SRC
- Specify other entry-paths
#+BEGIN_SRC lisp
(desktop-entry:init-entry-list [entry paths])
#+END_SRC

- Add an entry to entry-list
#+BEGIN_SRC lisp
(desktop-entry:add-to-entry-list
  desktop-entry:*entry-list*
  #P"xxx.desktop")

(desktop-entry:add-to-entry-list
  desktop-entry:*entry-list*
  (desktop-entry:make-desktop-entry #P"xxx.desktop"))

(desktop-entry:add-to-entry-list
  desktop-entry:*entry-list*
  (desktop-entry:make-desktop-entry
    '(:name "Google Chrome"
      :entry-type "Application"
      :exec "/usr/bin/google-chrome-stable %U"
      :path nil
      :categories ("Network" "WebBrowser")
      :no-display nil
      :only-show-in nil
      :terminal nil)))
#+END_SRC

- Add favorite
#+BEGIN_SRC lisp
(desktop-entry:add-favorite-entry <instance of desktop-entry>)
(desktop-entry:add-favorite-entry <name of an entry in *entry-list*>)
(desktop-entry:add-favorite-entry <pathname of a desktop file>)
#+END_SRC