depot/third_party/nixpkgs/pkgs/development/interpreters/wasmtime/default.nix

{ rustPlatform, rustfmt, fetchFromGitHub, Security, lib, stdenv }:

rustPlatform.buildRustPackage rec {
  pname = "wasmtime";
  version = "21.0.1";

  src = fetchFromGitHub {
    owner = "bytecodealliance";
    repo = pname;
    rev = "v${version}";
    hash = "sha256-KmxjZZC31n1gtuT89sc9Tpo9hmDivA8p4YK1L0/HFoM=";
    fetchSubmodules = true;
  };

  # Disable cargo-auditable until https://github.com/rust-secure-code/cargo-auditable/issues/124 is solved.
  auditable = false;
  cargoHash = "sha256-TSk3EljqUdSydXUdRftWar9Ss81N/WMNvSTvM0JUk98=";
  cargoBuildFlags = [ "--package" "wasmtime-cli" "--package" "wasmtime-c-api" ];

  outputs = [ "out" "dev" ];

  buildInputs = lib.optional stdenv.isDarwin Security;

  # rustfmt is brought into scope to fix the following
  #   warning: cranelift-codegen@0.108.0:
  #   Failed to run `rustfmt` on ISLE-generated code: Os
  #   { code: 2, kind: NotFound, message: "No such file or directory" }
  nativeBuildInputs = [ rustfmt ];

  doCheck = with stdenv.buildPlatform;
    # SIMD tests are only executed on platforms that support all
    # required processor features (e.g. SSE3, SSSE3 and SSE4.1 on x86_64):
    # https://github.com/bytecodealliance/wasmtime/blob/v9.0.0/cranelift/codegen/src/isa/x64/mod.rs#L220
    (isx86_64 -> sse3Support && ssse3Support && sse4_1Support) &&
    # The dependency `wasi-preview1-component-adapter` fails to build because of:
    # error: linker `rust-lld` not found
    !isAarch64;

  postInstall = ''
    # move libs from out to dev
    install -d -m 0755 $dev/lib
    install -m 0644 ''${!outputLib}/lib/* $dev/lib
    rm -r ''${!outputLib}/lib

    install -d -m0755 $dev/include/wasmtime
    install -m0644 $src/crates/c-api/include/*.h $dev/include
    install -m0644 $src/crates/c-api/include/wasmtime/*.h $dev/include/wasmtime
  '' + lib.optionalString stdenv.isDarwin ''
    install_name_tool -id \
      $dev/lib/libwasmtime.dylib \
      $dev/lib/libwasmtime.dylib
  '';

  meta = with lib; {
    description =
      "Standalone JIT-style runtime for WebAssembly, using Cranelift";
    homepage = "https://wasmtime.dev/";
    license = licenses.asl20;
    mainProgram = "wasmtime";
    maintainers = with maintainers; [ ereslibre matthewbauer ];
    platforms = platforms.unix;
    changelog = "https://github.com/bytecodealliance/wasmtime/blob/v${version}/RELEASES.md";
  };
}