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record.nix: add nameFixup as an option #45

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record.nix: add nameFixup as an option #45

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7 changes: 6 additions & 1 deletion dns/types/record.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,11 @@ let
example = "IN";
description = "Resource record class. Only IN is supported";
};
nameFixup = mkOption {
type = types.functionTo (types.functionTo types.str);
default = name: data: name;
description = "Function for post-processing the name";
};
ttl = mkOption {
type = types.nullOr types.ints.unsigned; # TODO: u32
default = null;
Expand All @@ -39,7 +44,7 @@ let
# add default values for the record type
(recordType rsubt).merge [] [ { file = ""; value = rsubt.fromString data; } ]
else data;
name' = let fname = rsubt.nameFixup or (n: _: n) name data'; in
name' = let fname = rsubt.nameFixup name data'; in
if name == "@" then name
else if (hasSuffix ".@" name) then removeSuffix ".@" fname
else "${fname}.";
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