tvl-depot/nix/writers/default.nix

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