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-;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2021 Andrew Tropin <andrew@trop.in>
-;;; Copyright © 2021 Xinglu Chen <public@yoctocell.xyz>
-;;;
-;;; 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 mcron)
- #:use-module (gnu packages guile-xyz)
- #:use-module (gnu home-services)
- #:use-module (gnu home-services shepherd)
- #:use-module (gnu services shepherd)
- #:use-module (guix records)
- #:use-module (guix gexp)
- #:use-module (srfi srfi-1)
- #:use-module (ice-9 match)
-
- #:export (home-mcron-configuration
- home-mcron-service-type))
-
-;;; Commentary:
-;;
-;; Service for the GNU mcron cron job manager.
-;;
-;; Example configuration, the first job runs mbsync once every ten
-;; minutes, the second one writes "Mcron service" to ~/mcron-file once
-;; every minute.
-;;
-;; (service home-mcron-service-type
-;; (home-mcron-configuration
-;; (jobs (list #~(job '(next-minute
-;; (range 0 60 10))
-;; (lambda ()
-;; (system* "mbsync" "--all")))
-;; #~(job next-minute-from
-;; (lambda ()
-;; (call-with-output-file (string-append (getenv "HOME")
-;; "/mcron-file")
-;; (lambda (port)
-;; (display "Mcron service" port)))))))))
-;;
-;;; Code:
-
-(define-record-type* <home-mcron-configuration> home-mcron-configuration
- make-home-mcron-configuration
- home-mcron-configuration?
- (package home-mcron-configuration-package ; package
- (default mcron))
- (jobs home-mcron-configuration-jobs ; list of jobs
- (default '())))
-
-(define job-files (@@ (gnu services mcron) job-files))
-(define shepherd-schedule-action
- (@@ (gnu services mcron) shepherd-schedule-action))
-
-(define home-mcron-shepherd-services
- (match-lambda
- (($ <home-mcron-configuration> mcron '()) ; no jobs to run
- '())
- (($ <home-mcron-configuration> mcron jobs)
- (let ((files (job-files mcron jobs)))
- (list (shepherd-service
- (documentation "User cron jobs.")
- (provision '(mcron))
- (modules `((srfi srfi-1)
- (srfi srfi-26)
- (ice-9 popen) ; for the 'schedule' action
- (ice-9 rdelim)
- (ice-9 match)
- ,@%default-modules))
- (start #~(make-forkexec-constructor
- (list #$(file-append mcron "/bin/mcron") #$@files)
- #:log-file (string-append
- (or (getenv "XDG_LOG_HOME")
- (format #f "~a/.local/var/log"
- (getenv "HOME")))
- "/mcron.log")))
- (stop #~(make-kill-destructor))
- (actions
- (list (shepherd-schedule-action mcron files)))))))))
-
-(define home-mcron-profile (compose list home-mcron-configuration-package))
-
-(define (home-mcron-extend config jobs)
- (home-mcron-configuration
- (inherit config)
- (jobs (append (home-mcron-configuration-jobs config)
- jobs))))
-
-(define home-mcron-service-type
- (service-type (name 'home-mcron)
- (extensions
- (list (service-extension
- home-shepherd-service-type
- home-mcron-shepherd-services)
- (service-extension
- home-profile-service-type
- home-mcron-profile)))
- (compose concatenate)
- (extend home-mcron-extend)
- (default-value (home-mcron-configuration))
- (description
- "Install and configure the GNU mcron cron job manager.")))