feat(flake): Implement zkwasm package

1 files changed, 77 insertions, 0 deletions

diff --git a/zkvms/zkwasm/default.nix b/zkvms/zkwasm/default.nix
new file mode 100644
index 0000000..4f4e42f
--- /dev/null
+++ b/zkvms/zkwasm/default.nix
@@ -0,0 +1,77 @@
+{ zkVM-helpers,
+  lib,
+  rust-bin,
+  metacraft-labs,
+  wasm-pack,
+  wasm-bindgen-cli,
+  binaryen,
+  craneLib-default,
+}:
+let
+  commonArgs = {
+    pname = "zkwasm";
+    version = "infdev";
+
+    src = with lib.fileset; toSource {
+      root = ../..;
+      fileset = intersection (gitTracked ../..) (unions [
+          ./.
+          ../../guests
+          ../../guests_macro
+          ../../zkvms_host_io
+          ../../Vertices-010.in
+      ]);
+    };
+
+    cargoLock = ./Cargo.lock;
+  };
+
+  rust-toolchain = rust-bin.nightly."2024-04-09".default.override {
+    targets = ["wasm32-unknown-unknown"];
+  };
+  craneLib = craneLib-default.overrideToolchain rust-toolchain;
+  cargoArtifacts = craneLib.buildDepsOnly (zkVM-helpers.fixDeps commonArgs);
+in
+  craneLib.buildPackage (zkVM-helpers.withCustomPhases (commonArgs
+    // {
+      inherit cargoArtifacts;
+
+      nativeBuildInputs = [
+        metacraft-labs.zkwasm
+        wasm-pack
+        wasm-bindgen-cli
+        binaryen
+      ];
+
+      postPatch = ''
+        ln -s ../../../../guests/graph_coloring ./zkvms/zkwasm/guest/src/zkp
+        ln -s ../../../Cargo.lock ./zkvms/zkwasm/guest/
+      '';
+
+      hostBin = "host-zkwasm";
+
+      buildGuestPhase = ''
+        pushd guest
+
+        # Workaround from
+        # https://github.com/rustwasm/wasm-pack/issues/1335
+        export WASM_PACK_CACHE=.wasm-pack-cache
+
+        wasm-pack build --release --frozen
+        popd
+      '';
+
+      postInstall = ''
+        mv zkvms/zkwasm/guest/pkg "$out"/
+      '';
+
+      preBuild = ''
+        export GUEST_PATH="$out/pkg/guest_bg.wasm"
+      '';
+
+      preRun = ''
+        export PATH="\$PATH:${metacraft-labs.zkwasm}/bin"
+      '';
+
+      doCheck = false;
+    }))