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authorLudovic Courtès <ludo@gnu.org>2014-07-25 00:12:35 +0200
committerLudovic Courtès <ludo@gnu.org>2014-07-25 00:12:35 +0200
commitc8fa34265d6612c99fe80adfaa66edaddd4d5b0c (patch)
tree282167e6f1e0f9e2e3305448dc5ef7d9c6e4da1d /doc
parent931c132a58d86287d7a73964f9731a3b578538cc (diff)
downloadguix-c8fa34265d6612c99fe80adfaa66edaddd4d5b0c.tar.gz
system: Add the 'system?' field for user groups.
Suggested by Mark H. Weaver.

* gnu/system/shadow.scm (<user-group>)[system?]: New field.
  (%base-groups): Introduce 'system-group' macro, and use it.
* gnu/system.scm (user-group->gexp): Pass the 'system?' field.
* guix/build/activation.scm (add-group): Add #:system? and honor it.
  (activate-users+groups): Handle the 'system?' field.
* gnu/system/file-systems.scm (%tty-gid): Choose an ID below 1000.
* doc/guix.texi (User Accounts): Document the 'system?' field.
Diffstat (limited to 'doc')
-rw-r--r--doc/guix.texi4
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/guix.texi b/doc/guix.texi
index 2060da9c55..cef2aba9a8 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -3201,6 +3201,10 @@ The group's name.
 The group identifier (a number).  If @code{#f}, a new number is
 automatically allocated when the group is created.
 
+@item @code{system?} (default: @code{#f})
+This Boolean value indicates whether the group is a ``system'' group.
+System groups have low numerical IDs.
+
 @item @code{password} (default: @code{#f})
 What, user groups can have a password?  Well, apparently yes.  Unless
 @code{#f}, this field specifies the group's password.