services: mcron: Add log? and log-format fields to mcron-configuration.
* gnu/services/mcron.scm (list-of-gexps?): New predicate. (mcron-configuration): Rewrite using define-configuration. [log?, log-format]: New fields. (mcron-shepherd-services): Invoke mcron with the --log and --log-format arguments when log? is #t, (generate-doc): New procedure. * doc/guix.texi (Scheduled Job Execution): Update doc. (Mcron Home Service): Likewise. * gnu/home/services/mcron.scm: Keep in sync with the above changes to gnu/services/mcron.scm.
Maxim Cournoyer
parent
543d971ed2
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9b21cd2e9a
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@ -19019,20 +19019,33 @@ words, it is possible to define services that provide additional mcron
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jobs to run.
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@end defvr
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@c Generated via (generate-documentation) at the bottom of (gnu services
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@c mcron).
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@c %start of fragment
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@deftp {Data Type} mcron-configuration
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Data type representing the configuration of mcron.
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Available @code{mcron-configuration} fields are:
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@table @asis
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@item @code{mcron} (default: @var{mcron})
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@item @code{mcron} (default: @code{mcron}) (type: file-like)
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The mcron package to use.
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@item @code{jobs}
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@item @code{jobs} (default: @code{()}) (type: list-of-gexps)
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This is a list of gexps (@pxref{G-Expressions}), where each gexp
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corresponds to an mcron job specification (@pxref{Syntax, mcron job
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specifications,, mcron, GNU@tie{}mcron}).
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specifications,, mcron,GNU@tie{}mcron}).
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@item @code{log?} (default: @code{#t}) (type: boolean)
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Log messages to standard output.
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@item @code{log-format} (default: @code{"~1@@*~a ~a: ~a~%"}) (type: string)
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@code{(ice-9 format)} format string for log messages. The default value
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produces messages like "@samp{@var{pid} @var{name}: @var{message}"}
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(@pxref{Invoking mcron, Invoking,, mcron,GNU@tie{}mcron}). Each message
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is also prefixed by a timestamp by GNU Shepherd.
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@end table
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@end deftp
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@c %end of fragment
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@node Log Rotation
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@subsection Log Rotation
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@ -41068,18 +41081,32 @@ jobs to run.
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@end defvr
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@deftp {Data Type} home-mcron-configuration
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Data type representing the configuration of mcron.
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Available @code{home-mcron-configuration} fields are:
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@c Auto-generated with (gnu home services mcron)'s
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@c generate-documentation procedure.
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@c %start of fragment
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@table @asis
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@item @code{mcron} (default: @var{mcron})
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@item @code{mcron} (default: @code{mcron}) (type: file-like)
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The mcron package to use.
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@item @code{jobs}
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@item @code{jobs} (default: @code{()}) (type: list-of-gexps)
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This is a list of gexps (@pxref{G-Expressions}), where each gexp
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corresponds to an mcron job specification (@pxref{Syntax, mcron job
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specifications,, mcron, GNU@tie{}mcron}).
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specifications,, mcron,GNU@tie{}mcron}).
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@item @code{log?} (default: @code{#t}) (type: boolean)
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Log messages to standard output.
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@item @code{log-format} (default: @code{"~1@@*~a ~a: ~a~%"}) (type: string)
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@code{(ice-9 format)} format string for log messages. The default value
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produces messages like "@samp{@var{pid} @var{name}: @var{message}"}
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(@pxref{Invoking mcron, Invoking,, mcron,GNU@tie{}mcron}). Each message
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is also prefixed by a timestamp by GNU Shepherd.
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@end table
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@end deftp
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@c %end of fragment
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@node Power Management Home Services
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@subsection Power Management Home Services
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@ -1,6 +1,7 @@
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;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2021 Andrew Tropin <andrew@trop.in>
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;;; Copyright © 2021 Xinglu Chen <public@yoctocell.xyz>
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;;; Copyright © 2022 Maxim Cournoyer <maxim.cournoyer@gmail.com>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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@ -20,6 +21,7 @@
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(define-module (gnu home services mcron)
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#:use-module (gnu packages guile-xyz)
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#:use-module (gnu home services)
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#:use-module (gnu services configuration)
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#:use-module (gnu services shepherd)
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#:use-module (gnu home services shepherd)
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#:use-module (guix records)
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@ -53,13 +55,23 @@
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;;
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;;; Code:
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(define-record-type* <home-mcron-configuration> home-mcron-configuration
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make-home-mcron-configuration
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home-mcron-configuration?
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(package home-mcron-configuration-package ; package
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(default mcron))
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(jobs home-mcron-configuration-jobs ; list of jobs
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(default '())))
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(define list-of-gexps?
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(list-of gexp?))
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(define-configuration/no-serialization home-mcron-configuration
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(mcron (file-like mcron) "The mcron package to use.")
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(jobs
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(list-of-gexps '())
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"This is a list of gexps (@pxref{G-Expressions}), where each gexp
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corresponds to an mcron job specification (@pxref{Syntax, mcron job
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specifications,, mcron, GNU@tie{}mcron}).")
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(log? (boolean #t) "Log messages to standard output.")
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(log-format
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(string "~1@*~a ~a: ~a~%")
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"@code{(ice-9 format)} format string for log messages. The default value
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produces messages like \"@samp{@var{pid} @var{name}:
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@var{message}\"} (@pxref{Invoking mcron, Invoking,, mcron, GNU@tie{}mcron}).
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Each message is also prefixed by a timestamp by GNU Shepherd."))
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(define job-files (@@ (gnu services mcron) job-files))
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(define shepherd-schedule-action
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@ -69,19 +81,23 @@
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(match-lambda
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(($ <home-mcron-configuration> mcron '()) ; no jobs to run
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'())
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(($ <home-mcron-configuration> mcron jobs)
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(($ <home-mcron-configuration> mcron jobs log? log-format)
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(let ((files (job-files mcron jobs)))
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(list (shepherd-service
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(documentation "User cron jobs.")
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(provision '(mcron))
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(modules `((srfi srfi-1)
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(srfi srfi-26)
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(ice-9 popen) ; for the 'schedule' action
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(ice-9 popen) ; for the 'schedule' action
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(ice-9 rdelim)
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(ice-9 match)
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,@%default-modules))
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(start #~(make-forkexec-constructor
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(list #$(file-append mcron "/bin/mcron") #$@files)
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(list (string-append #$mcron "/bin/mcron")
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#$@(if log?
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#~("--log" "--log-format" #$log-format)
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#~())
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#$@files)
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#:log-file (string-append
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(or (getenv "XDG_LOG_HOME")
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(format #f "~a/.local/var/log"
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@ -91,7 +107,7 @@
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(actions
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(list (shepherd-schedule-action mcron files)))))))))
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(define home-mcron-profile (compose list home-mcron-configuration-package))
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(define home-mcron-profile (compose list home-mcron-configuration-mcron))
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(define (home-mcron-extend config jobs)
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(home-mcron-configuration
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@ -113,3 +129,12 @@
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(default-value (home-mcron-configuration))
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(description
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"Install and configure the GNU mcron cron job manager.")))
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;;;
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;;; Generate documentation.
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;;;
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(define (generate-doc)
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(configuration->documentation 'home-mcron-configuration))
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;;; mcron.scm ends here
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@ -1,5 +1,6 @@
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;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2022 Maxim Cournoyer <maxim.cournoyer@gmail.com>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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@ -18,6 +19,7 @@
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(define-module (gnu services mcron)
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#:use-module (gnu services)
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#:use-module (gnu services configuration)
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#:use-module (gnu services shepherd)
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#:use-module (gnu packages guile-xyz)
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#:use-module (guix deprecation)
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@ -30,6 +32,8 @@
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mcron-configuration?
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mcron-configuration-mcron
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mcron-configuration-jobs
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mcron-configuration-log?
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mcron-configuration-log-format
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mcron-service-type))
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@ -48,13 +52,23 @@
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;;;
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;;; Code:
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(define-record-type* <mcron-configuration> mcron-configuration
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make-mcron-configuration
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mcron-configuration?
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(mcron mcron-configuration-mcron ;file-like
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(default mcron))
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(jobs mcron-configuration-jobs ;list of <mcron-job>
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(default '())))
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(define list-of-gexps?
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(list-of gexp?))
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(define-configuration/no-serialization mcron-configuration
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(mcron (file-like mcron) "The mcron package to use.")
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(jobs
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(list-of-gexps '())
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"This is a list of gexps (@pxref{G-Expressions}), where each gexp
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corresponds to an mcron job specification (@pxref{Syntax, mcron job
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specifications,, mcron, GNU@tie{}mcron}).")
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(log? (boolean #t) "Log messages to standard output.")
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(log-format
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(string "~1@*~a ~a: ~a~%")
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"@code{(ice-9 format)} format string for log messages. The default value
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produces messages like \"@samp{@var{pid} @var{name}:
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@var{message}\"} (@pxref{Invoking mcron, Invoking,, mcron, GNU@tie{}mcron}).
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Each message is also prefixed by a timestamp by GNU Shepherd."))
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(define (job-files mcron jobs)
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"Return a list of file-like object for JOBS, a list of gexps."
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@ -124,21 +138,25 @@ files."
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(define mcron-shepherd-services
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(match-lambda
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(($ <mcron-configuration> mcron ()) ;nothing to do!
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(($ <mcron-configuration> mcron ()) ;nothing to do!
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'())
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(($ <mcron-configuration> mcron jobs)
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(($ <mcron-configuration> mcron jobs log? log-format)
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(let ((files (job-files mcron jobs)))
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(list (shepherd-service
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(provision '(mcron))
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(requirement '(user-processes))
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(modules `((srfi srfi-1)
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(srfi srfi-26)
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(ice-9 popen) ;for the 'schedule' action
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(ice-9 popen) ;for the 'schedule' action
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(ice-9 rdelim)
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(ice-9 match)
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,@%default-modules))
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(start #~(make-forkexec-constructor
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(list (string-append #$mcron "/bin/mcron") #$@files)
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(list (string-append #$mcron "/bin/mcron")
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#$@(if log?
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#~("--log" "--log-format" #$log-format)
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#~())
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#$@files)
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;; Disable auto-compilation of the job files and set a
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;; sane value for 'PATH'.
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@ -172,4 +190,11 @@ files."
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jobs)))))
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(default-value (mcron-configuration)))) ;empty job list
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;;;
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;;; Generate documentation.
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;;;
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(define (generate-doc)
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(configuration->documentation 'mcron-configuration))
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;;; mcron.scm ends here
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