This reverts commit e9a5eebc78, which
as far as I can tell breaks system roll-backs thusly:
[...]
In gnu/build/accounts.scm:
   239:27  3 (_ #<<password-entry> name: "root" password: "x" uid: 0 gid: 0 real-name: "System >)
In unknown file:
           2 (string-join ("root" "x" "0" "0" "System administrator" "/root" #t) ":" #<undefined>)
In ice-9/boot-9.scm:
  1685:16  1 (raise-exception _ #:continuable? _)
  1685:16  0 (raise-exception _ #:continuable? _)
ice-9/boot-9.scm:1685:16: In procedure raise-exception:
In procedure string-append: Wrong type (expecting string): #t
		
	
			
		
			
				
	
	
		
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			115 lines
		
	
	
	
		
			4.1 KiB
		
	
	
	
		
			Scheme
		
	
	
	
	
	
| ;;; GNU Guix --- Functional package management for GNU
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| ;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
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| ;;;
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| ;;; This file is part of GNU Guix.
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| ;;;
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| ;;; GNU Guix is free software; you can redistribute it and/or modify it
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| ;;; under the terms of the GNU General Public License as published by
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| ;;; the Free Software Foundation; either version 3 of the License, or (at
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| ;;; your option) any later version.
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| ;;;
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| ;;; GNU Guix is distributed in the hope that it will be useful, but
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| ;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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| ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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| ;;; GNU General Public License for more details.
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| ;;;
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| ;;; You should have received a copy of the GNU General Public License
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| ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
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| 
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| (define-module (gnu system accounts)
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|   #:use-module (guix records)
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|   #:use-module (ice-9 match)
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|   #:export (<user-account>
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|             user-account
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|             user-account?
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|             user-account-name
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|             user-account-password
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|             user-account-uid
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|             user-account-group
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|             user-account-supplementary-groups
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|             user-account-comment
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|             user-account-home-directory
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|             user-account-create-home-directory?
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|             user-account-shell
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|             user-account-system?
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| 
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|             user-group
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|             user-group?
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|             user-group-name
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|             user-group-password
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|             user-group-id
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|             user-group-system?
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| 
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|             sexp->user-account
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|             sexp->user-group
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| 
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|             default-shell))
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| 
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| 
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| ;;; Commentary:
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| ;;;
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| ;;; Data structures representing user accounts and user groups.  This is meant
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| ;;; to be used both on the host side and at run time--e.g., in activation
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| ;;; snippets.
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| ;;;
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| ;;; Code:
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| 
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| (define default-shell
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|   ;; Default shell for user accounts (a string or string-valued gexp).
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|   (make-parameter "/bin/sh"))
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| 
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| (define-record-type* <user-account>
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|   user-account make-user-account
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|   user-account?
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|   (name           user-account-name)
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|   (password       user-account-password (default #f))
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|   (uid            user-account-uid (default #f))
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|   (group          user-account-group)             ; number | string
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|   (supplementary-groups user-account-supplementary-groups
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|                         (default '()))            ; list of strings
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|   (comment        user-account-comment (default ""))
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|   (home-directory user-account-home-directory (thunked)
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|                   (default (default-home-directory this-record)))
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|   (create-home-directory? user-account-create-home-directory? ;Boolean
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|                           (default #t))
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|   (shell          user-account-shell              ; gexp
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|                   (default (default-shell)))
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|   (system?        user-account-system?            ; Boolean
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|                   (default #f)))
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| 
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| (define-record-type* <user-group>
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|   user-group make-user-group
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|   user-group?
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|   (name           user-group-name)
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|   (password       user-group-password (default #f))
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|   (id             user-group-id (default #f))
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|   (system?        user-group-system?              ; Boolean
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|                   (default #f)))
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| 
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| (define (default-home-directory account)
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|   "Return the default home directory for ACCOUNT."
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|   (string-append "/home/" (user-account-name account)))
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| 
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| (define (sexp->user-group sexp)
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|   "Take SEXP, a tuple as returned by 'user-group->gexp', and turn it into a
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| user-group record."
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|   (match sexp
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|     ((name password id system?)
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|      (user-group (name name)
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|                  (password password)
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|                  (id id)
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|                  (system? system?)))))
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| 
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| (define (sexp->user-account sexp)
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|   "Take SEXP, a tuple as returned by 'user-account->gexp', and turn it into a
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| user-account record."
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|   (match sexp
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|     ((name uid group supplementary-groups comment home-directory
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|            create-home-directory? shell password system?)
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|      (user-account (name name) (uid uid) (group group)
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|                    (supplementary-groups supplementary-groups)
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|                    (comment comment)
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|                    (home-directory home-directory)
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|                    (create-home-directory? create-home-directory?)
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|                    (shell shell) (password password)
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|                    (system? system?)))))
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