154 lines
5.8 KiB
Scheme
154 lines
5.8 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2021 Andrew Tropin <andrew@trop.in>
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;;; Copyright © 2022 Ludovic Courtès <ludo@gnu.org>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (gnu home)
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#:use-module (gnu home services)
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#:use-module (gnu home services symlink-manager)
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#:use-module (gnu home services shells)
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#:use-module (gnu home services xdg)
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#:use-module (gnu home services fontutils)
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#:use-module (gnu services)
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#:use-module (guix records)
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#:use-module (guix diagnostics)
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#:use-module (guix gexp)
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#:use-module (guix store)
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#:use-module (ice-9 match)
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#:use-module (ice-9 regex)
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#:export (home-environment
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home-environment?
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this-home-environment
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home-environment-derivation
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home-environment-packages
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home-environment-user-services
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home-environment-essential-services
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home-environment-services
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home-environment-location
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home-environment-with-provenance
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home-generation-base))
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;;; Comment:
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;;;
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;;; This module provides a <home-environment> record for managing
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;;; per-user packages and configuration files in the similar way as
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;;; <operating-system> do for system packages and configuration files.
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;;;
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;;; Code:
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(define-record-type* <home-environment> home-environment
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make-home-environment
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home-environment?
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this-home-environment
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(packages home-environment-packages ; list of (PACKAGE OUTPUT...)
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(default '()))
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(essential-services home-environment-essential-services ; list of services
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(thunked)
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(default (home-environment-default-essential-services
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this-home-environment)))
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(services home-environment-user-services
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(default '()))
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(location home-environment-location ; <location>
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(default (and=> (current-source-location)
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source-properties->location))
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(innate)))
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(define (home-environment-default-essential-services he)
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"Return the list of essential services for home environment."
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(list
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(service home-run-on-first-login-service-type)
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(service home-activation-service-type)
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(service home-environment-variables-service-type)
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(service home-symlink-manager-service-type)
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(service home-fontconfig-service-type)
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(service home-xdg-base-directories-service-type)
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(service home-shell-profile-service-type)
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(service home-service-type)
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(service home-profile-service-type (home-environment-packages he))))
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(define* (home-environment-services he)
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"Return all the services of home environment."
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(instantiate-missing-services
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(append (home-environment-user-services he)
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(home-environment-essential-services he))))
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(define* (home-environment-derivation he)
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"Return a derivation that builds home environment."
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(let* ((services (home-environment-services he))
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(home (fold-services services
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#:target-type home-service-type)))
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(service-value home)))
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(define (home-environment-configuration-file he)
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"Return the configuration file of HE, based on its 'location' field, or #f
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if it could not be determined."
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(let ((file (and=> (home-environment-location he)
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location-file)))
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(and file
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(or (and (string-prefix? "/" file) file)
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(search-path %load-path file)))))
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(define* (home-environment-with-provenance he
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#:optional
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(config-file
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(home-environment-configuration-file
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he)))
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"Return a variant of HE that stores its own provenance information,
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including CONFIG-FILE, if available. This is achieved by adding an instance
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of HOME-PROVENANCE-SERVICE-TYPE to its services."
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(home-environment
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(inherit he)
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(services (cons (service home-provenance-service-type config-file)
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(home-environment-user-services he)))))
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(define-gexp-compiler (home-environment-compiler (he <home-environment>)
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system target)
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((store-lift
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(lambda (store)
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(run-with-store store (home-environment-derivation he)
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#:system system
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#:target target)))))
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(define %profile-generation-rx
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;; Regexp that matches profile generation.
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(make-regexp "(.*)-([0-9]+)-link$"))
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(define (home-generation-base file)
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"If FILE is a Home generation GC root such as \"guix-home-42-link\",
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return its corresponding base---e.g., \"guix-home\". Otherwise return #f.
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This is similar to the 'generation-profile' procedure but applied to Home
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generations."
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(match (regexp-exec %profile-generation-rx file)
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(#f #f)
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(m (let ((profile (match:substring m 1)))
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;; Distinguish from a "real" profile and from a system generation.
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(and (file-exists? (string-append profile "/on-first-login"))
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(file-exists? (string-append profile "/profile/manifest"))
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profile)))))
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