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nullmailer: simplify config generation

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This commit is contained in:
Joerg Thalheim 2017-09-28 10:47:19 +01:00
parent e741cc4881
commit 91eb6cf82c
1 changed files with 3 additions and 11 deletions
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14
nixos/modules/services/mail/nullmailer.nix
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@ -194,18 +194,10 @@ with lib;
environment = {
systemPackages = [ pkgs.nullmailer ];
etc = let
getval = attr: builtins.getAttr attr cfg.config;
attrs = builtins.attrNames cfg.config;
remotesFilter = if cfg.remotesFile != null
then (attr: attr != "remotes")
else (_: true);
optionalRemotesFileLink = if cfg.remotesFile != null
then { "nullmailer/remotes".source = cfg.remotesFile; }
else {};
attrs' = builtins.filter (attr: (! isNull (getval attr)) && (remotesFilter attr)) attrs;
validAttrs = filterAttrs (name: value: value != null) cfg.config;
in
(foldl' (as: attr: as // { "nullmailer/${attr}".text = getval attr; }) {} attrs')
// optionalRemotesFileLink;
(foldl' (as: name: as // { "nullmailer/${name}".text = validAttrs.${name}; }) {} (attrNames validAttrs))
// optionalAttrs (cfg.remotesFile != null) { "nullmailer/remotes".source = cfg.remotesFile; };
};
users = {