mason.el

mason.el is installer for LSP servers, DAP servers, linters and formatters, inspired by mason.nvim.

Package registry at mason-org/mason-registry.

• M-x mason-install RET to install packages.
• M-x mason-manager RET to open package manager.

Screenshots

Requirements

mason.el will call external programs such as cargo and npm to install the packages, or tar and gzip to extract downloaded archives.

Call (mason-doctor) to see the requirements of each package type.

Installation

mason.el is available on MELPA, install it in your favorite way and call (mason-setup) to setup the environment.

Install it with use-package

(use-package mason
  :ensure t
  :config
  (mason-setup))

Install it in Doom Emacs:

Add to DOOMDIR/packages.el:

(package! mason)

Add to DOOMDIR/config.el:

(use-package! mason
  :config
  (mason-setup))

Snippets

Programmatically installing packages

mason.el can be used to install packages programmatically:

(mason-setup
  (dolist (pkg '("basedpyright" "jdtls" "clangd"))
    (unless (mason-installed-p pkg)
      (ignore-errors (mason-install pkg)))))

This will (try to) install the missing packages.