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The (gnu home services mcron) module provides an interface to
GNU mcron, a daemon to run jobs at scheduled times (see GNU mcron). The information about system’s mcron is
applicable here (see Scheduled Job Execution), the only difference
for home services is that they have to be declared in a
home-environment record instead of an operating-system
record.
This is the type of the mcron home service, whose value is a
home-mcron-configuration object. It allows to manage scheduled
tasks.
This service type can be the target of a service extension that provides additional job specifications (see Service Composition). In other words, it is possible to define services that provide additional mcron jobs to run.
Available home-mcron-configuration fields are:
mcron (default: mcron) (type: file-like)The mcron package to use.
jobs (default: '()) (type: list-of-gexps)This is a list of gexps (see G-Expressions), where each gexp corresponds to an mcron job specification (see mcron job specifications in GNU mcron).
log? (default: #t) (type: boolean)Log messages to standard output.
log-format (default: "~1@*~a ~a: ~a~%") (type: string)(ice-9 format) format string for log messages. The default value
produces messages like "‘pid name: message"’
(see Invoking in GNU mcron). Each message
is also prefixed by a timestamp by GNU Shepherd.