33 lines
952 B
Nix
33 lines
952 B
Nix
{ depot, lib, ... }:
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# Convert an attrset of strings to a list of key/value netstring pairs.
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# A good minimally viable json replacement if all you need is to iterate.
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# You can use e.g. `forstdin -Ed '' item` in execline to split the items
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# and then get the key and value via `multidefine -d '' $item { key value }`
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#
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# Example:
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# { foo = "bar"; x = "abc"; }
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# => "12:3:foo,3:bar,,10:1:x,3:abc,,"
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#
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# Example with runExecline:
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# nix.runExecline "test" {
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# stdin = nix.netstring.attrsToKeyValList {
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# foo = "bar";
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# x = "abc";
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# };
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# } [
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# "forstdin" "-Ed" "" "item"
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# "multidefine" "-d" "" "$item" [ "key" "value" ]
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# "${pkgs.coreutils}/bin/echo" "\${key} -> \${value}"
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# ]
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# will print:
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# foo -> bar
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# x -> abc
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attrs:
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lib.concatStrings
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(lib.mapAttrsToList
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(k: v: depot.nix.netstring.fromString
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(depot.nix.netstring.fromString k
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+ depot.nix.netstring.fromString v))
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attrs)
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