rust-mode: A major emacs mode for editing Rust source code

rust-mode makes editing Rust code with emacs enjoyable.

Manual Installation

To install manually, check out this repository and add this to your .emacs file:

(add-to-list 'load-path "/path/to/rust-mode/")
(require 'rust-mode)

Make sure you byte-compile the .el files first, or the mode will be painfully slow. There is an included Makefile which will do it for you, so in the simplest case you can just run make and everything should Just Work.

If for some reason that doesn't work, you can byte compile manually, by pasting this in your *scratch* buffer, moving the cursor below it, and pressing C-j:

(progn
  (byte-compile-file "/path/to/rust-mode/cm-mode.el" t)
  (byte-compile-file "/path/to/rust-mode/rust-mode.el" t))

Rust mode will automatically be associated with .rs and .rc files. To enable it explicitly, do M-x rust-mode.

package.el installation via Marmalade or MELPA

It can be more convenient to use Emacs's package manager to handle installation for you if you use many elisp libraries. If you have package.el but haven't added Marmalade or MELPA, the community package source, yet, add this to ~/.emacs.d/init.el:

Using Marmalade:

(require 'package)
(add-to-list 'package-archives
             '("marmalade" . "http://marmalade-repo.org/packages/"))
(package-initialize)

Using MELPA:

(require 'package)
(add-to-list 'package-archives
             '("melpa" . "http://melpa.milkbox.net/packages/") t)
(package-initialize)

Then do this to load the package listing:

• M-x eval-buffer
• M-x package-refresh-contents

If you use a version of Emacs prior to 24 that doesn't include package.el, you can get it from http://bit.ly/pkg-el23.

If you have an older ELPA package.el installed from tromey.com, you should upgrade in order to support installation from multiple sources. The ELPA archive is deprecated and no longer accepting new packages, so the version there (1.7.1) is very outdated.

Important

In order to have cm-mode properly initialized after compilation prior to rust-mode.el compilation you will need to add these advices to your init file or if you are a melpa user install the melpa package.

(defadvice package-download-tar
  (after package-download-tar-initialize activate compile)
  "initialize the package after compilation"
  (package-initialize))

(defadvice package-download-single
  (after package-download-single-initialize activate compile)
  "initialize the package after compilation"
  (package-initialize))

Install rust-mode

From there you can install rust-mode or any other modes by choosing them from a list:

• M-x package-list-packages

Now, to install packages, move your cursor to them and press i. This will mark the packages for installation. When you're done with marking, press x, and ELPA will install the packages for you (under ~/.emacs.d/elpa/).

• or using M-x package-install rust-mode