bindings: create native target

Author: querolita

src/lib/crypto/kimchi_bindings/js/native/build.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+CURRENT_DIRECTORY=$(pwd)
+PROOF_SYSTEMS_ROOT=$(cd ../../../proof-systems && pwd)
+
+cargo build \
+    --manifest-path "${PROOF_SYSTEMS_ROOT}/Cargo.toml" \
+    --release \
+    -p plonk-napi
+
+TARGET_ROOT=${CARGO_TARGET_DIR:-"${PROOF_SYSTEMS_ROOT}/target"}
+
+case "$(uname -s)" in
+    Darwin*) LIB_NAME="libplonk_napi.dylib" ;;
+    MINGW*|MSYS*|CYGWIN*) LIB_NAME="plonk_napi.dll" ;;
+    *) LIB_NAME="libplonk_napi.so" ;;
+ esac
+
+ARTIFACT="${TARGET_ROOT}/release/${LIB_NAME}"
+
+if [[ ! -f "${ARTIFACT}" ]]; then
+    echo "Failed to locate plonk-napi artifact at ${ARTIFACT}" >&2
+    exit 1
+fi
+
+rm -f "${CURRENT_DIRECTORY}/plonk_napi.node"
+cp "${ARTIFACT}" "${CURRENT_DIRECTORY}/plonk_napi.node"

src/lib/crypto/kimchi_bindings/js/native/dune

@@ -0,0 +1,29 @@
+(library
+ (name native_backend)
+ (public_name bindings_js.native_backend)
+ (js_of_ocaml
+  (flags
+   (:include flags.sexp))
+  (javascript_files native_backend.js))
+ (instrumentation
+  (backend bisect_ppx))
+ (preprocess
+  (pps ppx_version js_of_ocaml-ppx)))
+
+(rule
+ (targets
+  plonk_napi.node
+  flags.sexp)
+ (deps
+  build.sh
+  ../../dune-build-root
+  (source_tree ../../../proof-systems))
+ (locks /cargo-lock)
+ (action
+  (progn
+   (setenv
+    CARGO_TARGET_DIR
+    "%{read:../../dune-build-root}/cargo_kimchi_native"
+    (run bash build.sh))
+   (write-file flags.sexp "()"))))
+   

src/lib/crypto/kimchi_bindings/js/native/native_backend.js

@@ -0,0 +1,4 @@
+// Provides: plonk_napi
+var plonk_napi = require('./plonk_napi.node');
+
+module.exports = plonk_napi;