sharing my configuration for coding Rust with emacs

[Chakravarthy Raghunandan]

I had discovered some really neat refactoring tricks while browsing through the emacs configuration of a very popular contributor to emacs.

Here is the link to my emacs configuration for Rust: https://github.com/CSRaghunandan/.emacs.d/blob/master/setup-files/setup-rust.el

Some useful features:
1. Toggle the mutability of a variable at point
2. Toggle the public visibility of the function at point
3. Convert the vector expression at point to slice foo -> &foo[..]
4. Run the test at point
5. have a local playground for trying out rust snippets
6. automatically format the file with Rustfmt upon saving
7. Shortcuts for executing all cargo commands
8. linting using rustc error + warning messages
9. Autocomplete and jump to definition of variables, functions, types, etc. using Racer

Regards,
Raghunandan

[Saifi]

Very nifty and interesting. Thanks so much for sharing, 'o wizard of emacs' !

setup-rust.el file contains reference to the following

https://github.com/rust-lang/rust-mode
https://github.com/flycheck/flycheck-rust
https://github.com/kwrooijen/cargo.el
https://github.com/racer-rust/emacs-racer

Could you please share your thoughts about how the variables and functions are accessed when multiple emacs lisp files are referenced ?

This would help folks, with exploring further.

warm regards
Saifi.

[Chakravarthy Raghunandan]

No need to worry about the elisp files. Just copy over the below lines to the init file: ~/.emacs or ~/.emacs.d/init.el . (you might need to create the file if they don't exist):

(require 'package)
(add-to-list 'package-archives '("melpa" . "https://melpa.org/packages/"))
(add-to-list 'package-archives '("org" . "http://orgmode.org/elpa/") t)
(package-initialize)

(unless (package-installed-p 'use-package) ; unless it is already installed
(package-refresh-contents) ; updage packages archive
(package-install 'use-package)) ; install the latest version of use-package
(eval-when-compile (require 'use-package))
(setq use-package-always-ensure t)

And copy over the contents of setup-rust.el to your init file (either of the two files I mentioned above) and open emacs. It should automatically download all dependencies and your Rust setup is ready :)

[Saifi]

This is cool.

Is there something similar to this for vi or zile ?

[Chakravarthy Raghunandan]

Hi Saifi,

I do not know much about vi/vim and their plugin ecosystem. But there is a way to bootstrap your vim/neovim configuration: https://vim-bootstrap.com/. Maybe you can checkout the Rust configuration there and load it to your ~/.vimrc

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Thanks and Regards,

Raghunandan

[Saifi]

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Thanks Raghu.

Will take a close look at this.


warm regards
Saifi.