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| | ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2022 ( <paren@disroot.org>
;;; Copyright © 2023 David Wilson <david@daviwil.com>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (gnu home services emacs)
#:use-module (gnu home services)
#:autoload (gnu packages emacs) (emacs-minimal
emacs)
#:use-module (gnu services configuration)
#:use-module (guix gexp)
#:use-module (guix packages)
#:use-module (guix records)
#:use-module (ice-9 match)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:export (emacs-variables
home-emacs-configuration
home-emacs-extension
home-emacs-service-type))
(define list-of-file-likes?
(list-of file-like?))
(define (string-or-file-like? val)
(or (string? val)
(file-like? val)))
(define list-of-string-or-file-likes?
(list-of string-or-file-like?))
(define-configuration/no-serialization home-emacs-configuration
(emacs
(file-like emacs)
"The package providing the @file{/bin/emacs} command.")
(packages
(list-of-file-likes '())
"Additional packages required by the Emacs configuration.")
(user-emacs-directory
(string "~/.cache/emacs")
"Directory beneath which additional per-user Emacs-specific files are placed.")
(init-file
(text-config '())
"Configuration text or files to include in init.el.")
(early-init-file
(text-config '())
"Configuration text or files to include in early-init.el.")
(load-paths
(list-of-string-or-file-likes '())
"Additional load paths to add to Emacs' @code{load-path} variable. Lines
will be inserted at the beginning of early-init.el.")
(native-compile?
(boolean #f)
"Whether to compile the @code{packages} using the Emacs package
provided as the value of the @code{emacs} field, which will enable
native compilation if the @code{emacs} package supports it."))
(define (home-emacs-profile-packages config)
(cons (home-emacs-configuration-emacs config)
(home-emacs-configuration-packages config)))
(define (home-emacs-transformed-packages config)
(map (if (home-emacs-configuration-native-compile? config)
(package-input-rewriting
`((,emacs-minimal
. ,(home-emacs-configuration-emacs config))))
identity)
(let ((packages (home-emacs-configuration-packages config)))
(concatenate
(cons packages
(map (compose (cute map second <>)
package-transitive-propagated-inputs)
packages))))))
(define (serialize-emacs-load-paths config)
#~(string-append
";; Additional load paths\n"
#$@(map (lambda (load-path)
#~(format #f "(add-to-list 'load-path \"~a\")" #$load-path))
(home-emacs-configuration-load-paths config))
"\n\n"))
(define (serialize-emacs-user-directory config)
(format #f
";; Set the `user-emacs-directory` to a writeable path\n(setq user-emacs-directory \"~a\")\n\n"
(home-emacs-configuration-user-emacs-directory config)))
(define (home-emacs-xdg-configuration-files config)
`(("emacs/early-init.el"
,(apply mixed-text-file
(cons* "early-init.el"
(serialize-emacs-load-paths config)
(serialize-emacs-user-directory config)
(home-emacs-configuration-early-init-file config))))
("emacs/init.el"
,(apply mixed-text-file
(cons "init.el"
(home-emacs-configuration-init-file config))))))
(define-configuration/no-serialization home-emacs-extension
(packages
(list-of-file-likes '())
"Additional packages required by the Emacs configuration.")
(init-file
(text-config '())
"Configuration text or files to include in init.el.")
(early-init-file
(text-config '())
"Configuration text or files to include in early-init.el.")
(load-paths
(list-of-string-or-file-likes '())
"Additional load paths to add to Emacs' @code{load-path} variable. Lines
will be inserted at the beginning of early-init.el."))
(define (home-emacs-extensions original-config extension-configs)
(match-record original-config <home-emacs-configuration>
(packages load-paths init-file early-init-file)
(home-emacs-configuration
(inherit original-config)
(packages
(append packages
(append-map
home-emacs-extension-packages extension-configs)))
(init-file
(append init-file
(append-map
home-emacs-extension-init-file extension-configs)))
(early-init-file
(append early-init-file
(append-map
home-emacs-extension-early-init-file extension-configs)))
(load-paths
(append load-paths
(append-map
home-emacs-extension-load-paths extension-configs))))))
(define home-emacs-service-type
(service-type
(name 'home-emacs)
(extensions
(list (service-extension
home-profile-service-type
home-emacs-profile-packages)
(service-extension
home-xdg-configuration-files-service-type
home-emacs-xdg-configuration-files)))
(default-value (home-emacs-configuration))
(compose identity)
(extend home-emacs-extensions)
(description
"Configure the GNU Emacs extensible text editor.")))
(define scheme-value->emacs-value
(match-lambda (#t (quote 't))
(#f (quote 'nil))
(val val)))
(define (emacs-variables var-alist)
"Converts an alist of variable names and values into a @code{setq}
expression that can be used in an Emacs configuration. Scheme values
@code{#t} and @code{#f} will be converted into @code{t} and @code{nil},
respectively."
#~(string-append
"(setq"
#$@(map (lambda (var)
#~(format #f "\n ~a ~s"
(quote #$(car var))
#$(scheme-value->emacs-value (cdr var))))
var-alist)
")\n\n"))
|