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>
		
			
				
	
	
		
			113 lines
		
	
	
	
		
			2.7 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			113 lines
		
	
	
	
		
			2.7 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
{ depot, pkgs, lib, ... }:
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let
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  bins = depot.nix.getBins pkgs.s6-portable-utils [ "s6-ln" "s6-ls" "s6-touch" ]
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  ;
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  linkTo = name: path: depot.nix.runExecline.local name { } [
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    "importas"
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    "out"
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    "out"
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    bins.s6-ln
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    "-s"
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    path
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    "$out"
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  ];
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  # Build a rust executable, $out is the executable.
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  rustSimple = args@{ name, ... }: src:
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    linkTo name "${rustSimpleBin args src}/bin/${name}";
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  # Like `rustSimple`, but put the binary in `$out/bin/`.
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  rustSimpleBin =
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    { name
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    , dependencies ? [ ]
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    , doCheck ? true
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    ,
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    }: src:
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    (if doCheck then testRustSimple else pkgs.lib.id)
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      (pkgs.buildRustCrate ({
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        pname = name;
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        version = "1.0.0";
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        crateName = name;
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        crateBin = [ name ];
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        dependencies = dependencies;
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        src = pkgs.runCommandLocal "write-main.rs"
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          {
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            src = src;
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            passAsFile = [ "src" ];
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          } ''
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          mkdir -p $out/src/bin
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          cp "$srcPath" $out/src/bin/${name}.rs
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          find $out
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        '';
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      }));
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  # Build a rust library, that can be used as dependency to `rustSimple`.
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  # Wrapper around `pkgs.buildRustCrate`, takes all its arguments.
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  rustSimpleLib =
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    { name
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    , dependencies ? [ ]
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    , doCheck ? true
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    ,
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    }: src:
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    (if doCheck then testRustSimple else pkgs.lib.id)
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      (pkgs.buildRustCrate ({
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        pname = name;
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        version = "1.0.0";
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        crateName = name;
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        dependencies = dependencies;
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        src = pkgs.runCommandLocal "write-lib.rs"
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          {
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            src = src;
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            passAsFile = [ "src" ];
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          } ''
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          mkdir -p $out/src
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          cp "$srcPath" $out/src/lib.rs
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          find $out
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        '';
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      }));
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  /* Takes a `buildRustCrate` derivation as an input,
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    * builds it with `{ buildTests = true; }` and runs
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    * all tests found in its `tests` dir. If they are
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    * all successful, `$out` will point to the crate
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    * built with `{ buildTests = false; }`, otherwise
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    * it will fail to build.
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    *
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    * See also `nix.drvSeqL` which is used to implement
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    * this behavior.
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    */
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  testRustSimple = rustDrv:
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    let
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      crate = buildTests: rustDrv.override { inherit buildTests; };
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      tests = depot.nix.runExecline.local "${rustDrv.name}-tests-run" { } [
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        "importas"
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        "out"
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        "out"
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        "if"
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        [
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          "pipeline"
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          [ bins.s6-ls "${crate true}/tests" ]
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          "forstdin"
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          "-o0"
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          "test"
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          "importas"
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          "test"
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          "test"
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          "${crate true}/tests/$test"
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        ]
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        bins.s6-touch
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        "$out"
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      ];
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    in
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    depot.nix.drvSeqL [ tests ] (crate false);
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in
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{
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  inherit
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    rustSimple
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    rustSimpleBin
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    rustSimpleLib
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    ;
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}
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