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authorLudovic Courtès <ludo@gnu.org>2019-08-27 22:38:04 +0200
committerLudovic Courtès <ludo@gnu.org>2019-08-28 00:27:14 +0200
commitdd4e46edda6c255ca170a6650c6f92b16ff50a3f (patch)
tree545a8eaf37525b31fbdba3765a5f71c32334f0f9 /gnu
parent114f02bac47d86c04bf211e33864beffcde74aab (diff)
downloadguix-dd4e46edda6c255ca170a6650c6f92b16ff50a3f.tar.gz
accounts: Delete duplicate entries.
When adding multiple instances of a service requiring some user
account/group, we could end up with multiple entries for that account or
group in /etc/passwd or /etc/group.

* gnu/build/accounts.scm (database-writer)[write-entries]: Add call to
'delete-duplicates'.
* tests/accounts.scm ("write-passwd with duplicate entry"): New test.
Diffstat (limited to 'gnu')
-rw-r--r--gnu/build/accounts.scm2
1 files changed, 1 insertions, 1 deletions
diff --git a/gnu/build/accounts.scm b/gnu/build/accounts.scm
index 5094456ab1..f60d68d9b3 100644
--- a/gnu/build/accounts.scm
+++ b/gnu/build/accounts.scm
@@ -238,7 +238,7 @@ to it atomically and set the appropriate permissions."
       (for-each (lambda (entry)
                   (display (entry->string entry) port)
                   (newline port))
-                entries))
+                (delete-duplicates entries)))
 
     (if (port? file-or-port)
         (write-entries file-or-port)