We can be closed world, so let’s restrict the arguments to the subset we need for now. The existing override was wrong, in that `// args` would use the arguments we already added, again. So instead of deliberating about how to make this work right in all cases, we don’t need it, we trim it. Change-Id: I6443a0808b8bfd5e4db939b669c6afc741954db8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/3057 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
		
			
				
	
	
		
			93 lines
		
	
	
	
		
			2.5 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			93 lines
		
	
	
	
		
			2.5 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" "out" "out"
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    bins.s6-ln "-s" path "$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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  }: 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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        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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  }: 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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        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 "${rustDrv.name}-tests-run" {} [
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        "importas" "out" "out"
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        "if" [
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          "pipeline" [ bins.s6-ls "${crate true}/tests" ]
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          "forstdin" "-o0" "test"
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          "importas" "test" "test"
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          "${crate true}/tests/$test"
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        ]
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        bins.s6-touch "$out"
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      ];
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    in depot.nix.drvSeqL [ tests ] (crate false);
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in {
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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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