diff options
Diffstat (limited to 'gnu/build/activation.scm')
| -rw-r--r-- | gnu/build/activation.scm | 49 |
1 files changed, 46 insertions, 3 deletions
diff --git a/gnu/build/activation.scm b/gnu/build/activation.scm index 909e971833..64c3410baf 100644 --- a/gnu/build/activation.scm +++ b/gnu/build/activation.scm @@ -1,5 +1,5 @@ ;;; GNU Guix --- Functional package management for GNU -;;; Copyright © 2013, 2014 Ludovic Courtès <ludo@gnu.org> +;;; Copyright © 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org> ;;; Copyright © 2015 Mark H Weaver <mhw@netris.org> ;;; ;;; This file is part of GNU Guix. @@ -40,6 +40,24 @@ ;;; ;;; Code: +(define (enumerate thunk) + "Return the list of values returned by THUNK until it returned #f." + (let loop ((entry (thunk)) + (result '())) + (if (not entry) + (reverse result) + (loop (thunk) (cons entry result))))) + +(define (current-users) + "Return the passwd entries for all the currently defined user accounts." + (setpw) + (enumerate getpwent)) + +(define (current-groups) + "Return the group entries for all the currently defined user groups." + (setgr) + (enumerate getgrent)) + (define* (add-group name #:key gid password system? (log-port (current-error-port))) "Add NAME as a user group, with the given numeric GID if specified." @@ -128,6 +146,17 @@ properties. Return #t on success." ,name))) (zero? (apply system* "usermod" args)))) +(define* (delete-user name #:key (log-port (current-error-port))) + "Remove user account NAME. Return #t on success. This may fail if NAME is +logged in." + (format log-port "deleting user '~a'...~%" name) + (zero? (system* "userdel" name))) + +(define* (delete-group name #:key (log-port (current-error-port))) + "Remove group NAME. Return #t on success." + (format log-port "deleting group '~a'...~%" name) + (zero? (system* "groupdel" name))) + (define* (ensure-user name group #:key uid comment home shell password system? (supplementary-groups '()) @@ -186,8 +215,22 @@ numeric gid or #f." #:system? system?)))) groups) - ;; Finally create the other user accounts. - (for-each activate-user users)) + ;; Create the other user accounts. + (for-each activate-user users) + + ;; Finally, delete extra user accounts and groups. + (for-each delete-user + (lset-difference string=? + (map passwd:name (current-users)) + (match users + (((names . _) ...) + names)))) + (for-each delete-group + (lset-difference string=? + (map group:name (current-groups)) + (match groups + (((names . _) ...) + names))))) (define (activate-etc etc) "Install ETC, a directory in the store, as the source of static files for |