add SERVICE:NO-SERVICES, SERVICE:RUNNING

Signed-off-by: Sean Whitton <spwhitton@spwhitton.name>

3 files changed, 66 insertions, 0 deletions

diff --git a/consfigurator.asd b/consfigurator.asd
index b487645..ab95b69 100644
--- a/consfigurator.asd
+++ b/consfigurator.asd
@@ -30,6 +30,7 @@
 	       (:file "src/property/cmd")
 	       (:file "src/property/file")
 	       (:file "src/property/os")
+	       (:file "src/property/service")
 	       (:file "src/property/apt")
 	       (:file "src/property/chroot")
 	       (:file "src/property/user")
diff --git a/src/package.lisp b/src/package.lisp
index 67cf368..b496ff2 100644
--- a/src/package.lisp
+++ b/src/package.lisp
@@ -237,6 +237,13 @@
 	   #:required
 	   #:supports-arch-p))
 
+(defpackage :consfigurator.property.service
+  (:use #:cl #:alexandria #:consfigurator)
+  (:local-nicknames (#:os    #:consfigurator.property.os)
+		    (#:file  #:consfigurator.property.file))
+  (:export #:no-services
+	   #:running))
+
 (defpackage :consfigurator.property.apt
   (:use #:cl #:alexandria #:consfigurator)
   (:local-nicknames (#:re  #:cl-ppcre)
diff --git a/src/property/service.lisp b/src/property/service.lisp
new file mode 100644
index 0000000..7ab220b
--- /dev/null
+++ b/src/property/service.lisp
@@ -0,0 +1,58 @@
+;;; Consfigurator -- Lisp declarative configuration management system
+
+;;; Copyright (C) 2021  Sean Whitton <spwhitton@spwhitton.name>
+
+;;; This file 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, or (at your option)
+;;; any later version.
+
+;;; This file 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+
+(in-package :consfigurator.property.service)
+(named-readtables:in-readtable :interpol-syntax)
+
+;;;; Controlling services using service(1)
+
+(define-constant +policyrcd+ #P"/usr/sbin/policy-rc.d" :test #'equal)
+(define-constant +policyrcd~+ #P"/usr/sbin/policy-rc.d~consfig" :test #'equal)
+
+(defprop %no-services :posix ()
+  (:hostattrs
+   (push-hostattrs :no-services t)))
+
+(defprop %policy-rc.d :posix ()
+  (:apply
+   (assert-euid-root)
+   (when (test "-e" +policyrcd+ "-a" "!" "-e" +policyrcd~+)
+     (mrun "mv" +policyrcd+ +policyrcd~+))
+   (file:has-content +policyrcd+ '("#!/bin/sh" "exit 101"))
+   (file:has-mode +policyrcd+ #o755))
+  (:unapply
+   (assert-euid-root)
+   (if (test "-e" +policyrcd~+)
+       (mrun "mv" +policyrcd~+ +policyrcd+)
+       (file:does-not-exist +policyrcd+))))
+
+(defproplist no-services :posix ()
+  "Disable starting services with service(1) and by the package manager."
+  (:desc #?"Starting services disabled")
+  (%no-services)
+  (os:typecase
+    (debian (%policy-rc.d))))
+
+(defprop running :posix (service)
+  "Attempt to start service using service(1).
+Assumes that if service(1) returns nonzero, it means the service was already
+running.  If something more robust is required, use init system-specific
+properties."
+  (:desc #?"Attempt to start ${service} has been made")
+  (:apply
+   (unless (get-hostattrs-car :no-services)
+     (run :may-fail "service" service "start"))))