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+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2022 ( <paren@disroot.org>
+;;;
+;;; 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 pm)
+ #:use-module (guix gexp)
+ #:use-module (guix packages)
+ #:use-module (guix records)
+ #:use-module (gnu home services)
+ #:use-module (gnu home services shepherd)
+ #:use-module (gnu packages monitoring)
+ #:use-module (gnu services shepherd)
+
+ #:export (home-batsignal-configuration
+ home-batsignal-service-type))
+
+;;;
+;;; batsignal
+;;;
+;;; Daemon for running commands and displaying notifications on
+;;; battery events.
+;;;
+
+(define-record-type* <home-batsignal-configuration>
+ home-batsignal-configuration make-home-batsignal-configuration
+ home-batsignal-configuration?
+ (warning-level batsignal-warning-level ;integer
+ (default 15))
+ (warning-message batsignal-warning-message ;string | #f
+ (default #f))
+ (critical-level batsignal-critical-level ;integer
+ (default 5))
+ (critical-message batsignal-critical-message ;string | #f
+ (default #f))
+ (danger-level batsignal-danger-level ;integer
+ (default 2))
+ (danger-command batsignal-danger-command ;file-like | string | #f
+ (default #f))
+ (full-level batsignal-full-level ;integer | #f
+ (default #f))
+ (full-message batsignal-full-message ;string | #f
+ (default #f))
+ (batteries batsignal-batteries ;list of string
+ (default '()))
+ (poll-delay batsignal-poll-delay ;integer
+ (default 60))
+ (icon batsignal-icon ;file-like | #f
+ (default #f))
+ (notifications? batsignal-notifications? ;boolean
+ (default #t))
+ (notifications-expire? batsignal-notifications-expire? ;boolean
+ (default #f))
+ (notification-command batsignal-notification-command ;string | #f
+ (default #f))
+ (ignore-missing? batsignal-ignore-missing? ;boolean
+ (default #f)))
+
+(define (home-batsignal-shepherd-services config)
+ (let ((warning-level (batsignal-warning-level config))
+ (warning-message (batsignal-warning-message config))
+ (critical-level (batsignal-critical-level config))
+ (critical-message (batsignal-critical-message config))
+ (danger-level (batsignal-danger-level config))
+ (danger-command (batsignal-danger-command config))
+ (full-level (batsignal-full-level config))
+ (full-message (batsignal-full-message config))
+ (batteries (batsignal-batteries config))
+ (poll-delay (batsignal-poll-delay config))
+ (icon (batsignal-icon config))
+ (notifications? (batsignal-notifications? config))
+ (notifications-expire? (batsignal-notifications-expire? config))
+ (notification-command (batsignal-notification-command config))
+ (ignore-missing? (batsignal-ignore-missing? config)))
+ (list (shepherd-service
+ (provision '(batsignal))
+ (documentation "Run the batsignal battery-watching daemon.")
+ (start #~(make-forkexec-constructor
+ (append (list #$(file-append batsignal "/bin/batsignal")
+ "-w" (number->string #$warning-level)
+ "-c" (number->string #$critical-level)
+ "-d" (number->string #$danger-level)
+ "-m" (number->string #$poll-delay))
+ (if #$warning-message
+ (list "-W" #$warning-message)
+ (list))
+ (if #$critical-message
+ (list "-C" #$critical-message)
+ (list))
+ (if #$danger-command
+ (list "-D" #$danger-command)
+ (list))
+ (if #$full-level
+ (list "-f" (number->string #$full-level))
+ (list))
+ (if #$full-message
+ (list "-F" #$full-message)
+ (list))
+ (if (null? (list #$@batteries))
+ (list)
+ (list "-n" (string-join (list #$@batteries) ",")))
+ (if #$icon
+ (list "-I" #$icon)
+ (list))
+ (if #$notifications?
+ (list)
+ (list "-N"))
+ (if #$notifications-expire?
+ (list "-e")
+ (list))
+ (if #$notification-command
+ (list "-M" #$notification-command)
+ (list))
+ (if #$ignore-missing?
+ (list "-i")
+ (list)))
+ #:log-file (string-append
+ (or (getenv "XDG_LOG_HOME")
+ (format #f "~a/.local/var/log"
+ (getenv "HOME")))
+ "/batsignal.log")))
+ (stop #~(make-kill-destructor))))))
+
+(define home-batsignal-service-type
+ (service-type
+ (name 'home-batsignal)
+ (extensions
+ (list (service-extension home-shepherd-service-type
+ home-batsignal-shepherd-services)))
+ (default-value (home-batsignal-configuration))
+ (description
+ "Run batsignal, a battery watching and notification daemon.")))