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Diffstat (limited to 'gnu/home/services/mcron.scm')
| -rw-r--r-- | gnu/home/services/mcron.scm | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/gnu/home/services/mcron.scm b/gnu/home/services/mcron.scm new file mode 100644 index 0000000000..cc6faac47f --- /dev/null +++ b/gnu/home/services/mcron.scm @@ -0,0 +1,115 @@ +;;; 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 services shepherd) + #:use-module (gnu home 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."))) |