Add user property, modelled on apt property

Signed-off-by: David Bremner <david@tethera.net>

1 files changed, 31 insertions, 0 deletions

diff --git a/src/property/user.lisp b/src/property/user.lisp
new file mode 100644
index 0000000..48ac810
--- /dev/null
+++ b/src/property/user.lisp
@@ -0,0 +1,31 @@
+;;; Consfigurator -- Lisp declarative configuration management system
+
+;;; Copyright (C) 2021  David Bremner <david@tethera.net>
+
+;;; 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.user)
+(named-readtables:in-readtable :interpol-syntax)
+
+(defprop has-account :posix (user-name)
+  "ensure there is an account for USER-NAME."
+  (:desc #?"account for ${user-name}")
+  (:check
+   (user-exists user-name))
+  (:apply
+   (assert-euid-root)
+   (run "useradd" "-m" user-name)))
+
+(defun user-exists (user-name)
+  (zerop (run :for-exit "getent" "passwd" user-name)))