diff options
Diffstat (limited to 'nixpkgs/pkgs/pkgs-lib/formats.nix')
| -rw-r--r-- | nixpkgs/pkgs/pkgs-lib/formats.nix | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/pkgs-lib/formats.nix b/nixpkgs/pkgs/pkgs-lib/formats.nix index 3cbda3a7ebdd..950547c4f001 100644 --- a/nixpkgs/pkgs/pkgs-lib/formats.nix +++ b/nixpkgs/pkgs/pkgs-lib/formats.nix @@ -142,6 +142,20 @@ rec { }; + # As defined by systemd.syntax(7) + # + # null does not set any value, which allows for RFC42 modules to specify + # optional config options. + systemd = let + mkValueString = lib.generators.mkValueStringDefault {}; + mkKeyValue = k: v: + if v == null then "# ${k} is unset" + else "${k} = ${mkValueString v}"; + in ini { + listsAsDuplicateKeys = true; + inherit mkKeyValue; + }; + keyValue = { # Represents lists as duplicate keys listsAsDuplicateKeys ? false, |