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checks: check single user installs don't have the nix-daemon enabled

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Remove suggestion to set `nix.useDaemon` as it came without an
explanation of how the `nix-daemon` would be unmanaged and would most
likely lead to most users running an old version of Nix as the daemon.
This commit is contained in:
Michael Hoang 2024-11-11 20:23:06 +11:00
parent 5d1b7ac696
commit 6d794390fa
1 changed files with 21 additions and 13 deletions
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34
modules/system/checks.nix
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@ -129,18 +129,26 @@ let
fi
'';
singleUser = ''
if grep -q 'build-users-group =' /etc/nix/nix.conf; then
echo "error: The daemon is not enabled but this is a multi-user install, aborting activation" >&2
echo "Enable the nix-daemon service:" >&2
echo >&2
echo " services.nix-daemon.enable = true;" >&2
echo >&2
echo "or set" >&2
echo >&2
echo " nix.useDaemon = true;" >&2
echo >&2
exit 2
nixDaemon = if config.nix.useDaemon then ''
if ! dscl . -read /Groups/nixbld PrimaryGroupID &> /dev/null; then
printf >&2 'error: The daemon should not be enabled for single-user installs, aborting activation\n'
printf >&2 'Disable the nix-daemon service:\n'
printf >&2 '\n'
printf >&2 ' services.nix-daemon.enable = false;\n'
printf >&2 '\n'
# shellcheck disable=SC2016
printf >&2 'and remove `nix.useDaemon` from your configuration if it is present.\n'
printf >&2 '\n'
exit 2
fi
'' else ''
if dscl . -read /Groups/nixbld PrimaryGroupID &> /dev/null; then
printf >&2 'error: The daemon should be enabled for multi-user installs, aborting activation\n'
printf >&2 'Enable the nix-daemon service:\n'
printf >&2 '\n'
printf >&2 ' services.nix-daemon.enable = true;\n'
printf >&2 '\n'
exit 2
fi
'';
@ -337,7 +345,7 @@ in
(mkIf cfg.verifyBuildUsers buildUsers)
(mkIf cfg.verifyBuildUsers preSequoiaBuildUsers)
(mkIf config.nix.configureBuildUsers buildGroupID)
(mkIf (!config.nix.useDaemon) singleUser)
nixDaemon
nixStore
(mkIf (config.nix.gc.automatic && config.nix.gc.user == null) nixGarbageCollector)
(mkIf (config.nix.optimise.automatic && config.nix.optimise.user == null) nixStoreOptimiser)