Add plugin for opening file browser from prompt

[lonnon]

• Contains functions for invoking various OS-specific utilities that open a directory in the system's file browser.
• Also suitable for popping open URLs and files in whatever the system thinks is appropriate.
• Supports Windows, Cygwin on Windows, OS X, Gnome, KDE, and possibly others via XDG.

[mcornella]

This needs to separate the logic into different platforms, rather than just falling into the next command if the first is not found. In Linux, for example, there is a package that adds a start command that starts services, not like the start in Windows.
Also, as far as I know, xdg-open is always going to work in Linux without spitting out any errors in the console, while gnome-open will most likely open nautilus and probably spit some error or debug message.

In my system, I have alias o=xdg-open to open whatever file with the default application, and alias o.=xdg-open . to open the current directory.

[mcornella]

@lonnon any updates?

[halilim]

A simple version of this (with just open and xdg-open) is already used in four of the plugins: https://github.com/robbyrussell/oh-my-zsh/search?utf8=%E2%9C%93&q=xdg-open&type=Code (and with the exact same code, now talk about DRY!).

Also note that you can open files using this if you specify a file with the default editor configured for the type of the specified file.

And if we are going to follow @mcornella's suggestion for detecting platform, you may want to use $OSTYPE instead of uname: #2744