This CL can be used to compare the style of nixpkgs-fmt against other formatters (nixpkgs, alejandra). Change-Id: I87c6abff6bcb546b02ead15ad0405f81e01b6d9e Reviewed-on: https://cl.tvl.fyi/c/depot/+/4397 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org> Reviewed-by: lukegb <lukegb@tvl.fyi> Reviewed-by: wpcarro <wpcarro@gmail.com> Reviewed-by: Profpatsch <mail@profpatsch.de> Reviewed-by: kanepyork <rikingcoding@gmail.com> Reviewed-by: tazjin <tazjin@tvl.su> Reviewed-by: cynthia <cynthia@tvl.fyi> Reviewed-by: edef <edef@edef.eu> Reviewed-by: eta <tvl@eta.st> Reviewed-by: grfn <grfn@gws.fyi>
		
			
				
	
	
		
			73 lines
		
	
	
	
		
			1.3 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			73 lines
		
	
	
	
		
			1.3 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
{ lib }:
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let
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  netstring = tag: suffix: s:
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    "${tag}${toString (builtins.stringLength s)}:${s}${suffix}";
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  unit = "u,";
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  n1 = b: if b then "n1:1," else "n1:0,";
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  n = i: n: "n${toString i}:${toString n},";
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  i = i: n: "i${toString i}:${toString n},";
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  n3 = n 3;
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  n6 = n 6;
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  n7 = n 7;
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  i3 = i 3;
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  i6 = i 6;
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  i7 = i 7;
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  text = netstring "t" ",";
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  binary = netstring "b" ",";
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  tag = key: val: netstring "<" "|" key + val;
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  concatStrings = builtins.concatStringsSep "";
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  record = lokv: netstring "{" "}"
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    (concatStrings (map ({ key, val }: tag key val) lokv));
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  list = l: netstring "[" "]" (concatStrings l);
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  dwim = val:
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    let
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      match = {
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        "bool" = n1;
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        "int" = i6;
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        "string" = text;
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        "set" = attrs:
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          # it could be a derivation, then just return the path
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          if attrs.type or "" == "derivation" then text "${attrs}"
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          else
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            record (lib.mapAttrsToList
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              (k: v: {
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                key = k;
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                val = dwim v;
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              })
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              attrs);
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        "list" = l: list (map dwim l);
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      };
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    in
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    match.${builtins.typeOf val} val;
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in
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{
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  inherit
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    unit
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    n1
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    n3
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    n6
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    n7
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    i3
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    i6
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    i7
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    text
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    binary
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    tag
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    record
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    list
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    dwim
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    ;
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}
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