documented js bindings build script

bindings/wasm/build.sh

@@ -1,24 +1,67 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 set -e
 
+# Change to the script directory
 cd "$(dirname "$0")"
 
+# Get root directory
+REPO_ROOT_DIR=$(git rev-parse --show-toplevel)
+
+# Check if emscripten is installed
+if ! command -v emcmake &> /dev/null; then
+    echo "Emscripten is not installed. Please install it and make sure it is in your PATH."
+    exit 1
+fi
+
 # Generate the package structure
 mkdir -p package/src/build
 mkdir -p package/dist
 
+# Find core count for make. Prefer nproc, then sysctl, then default to 1
+if command -v nproc &> /dev/null; then
+    CORE_COUNT=$(nproc)
+elif command -v sysctl &> /dev/null; then
+    CORE_COUNT=$(sysctl -n hw.logicalcpu)
+else
+    CORE_COUNT=1
+fi
+
 # Build the wasm module
 mkdir -p build
 cd build
-emcmake cmake -DCMAKE_BUILD_TYPE=Release -DKIWI_USE_CPUINFO=OFF -DKIWI_BUILD_TEST=OFF -DKIWI_USE_MIMALLOC=OFF -DKIWI_BUILD_CLI=OFF -DKIWI_BUILD_EVALUATOR=OFF -DKIWI_BUILD_MODEL_BUILDER=OFF ../../../
-make -j8
+emcmake cmake \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DKIWI_USE_CPUINFO=OFF \
+    -DKIWI_USE_MIMALLOC=OFF \
+    -DKIWI_BUILD_TEST=OFF \
+    -DKIWI_BUILD_CLI=OFF \
+    -DKIWI_BUILD_EVALUATOR=OFF \
+    -DKIWI_BUILD_MODEL_BUILDER=OFF \
+    $REPO_ROOT_DIR
+make -j $CORE_COUNT
+cd ..
 
 # Copy the generated files to the package
-cp bindings/wasm/kiwi-wasm.js ../package/src/build/kiwi-wasm.js
-cp bindings/wasm/kiwi-wasm.wasm ../package/dist/kiwi-wasm.wasm
+cp build/bindings/wasm/kiwi-wasm.js package/src/build/kiwi-wasm.js
+cp build/bindings/wasm/kiwi-wasm.wasm package/dist/kiwi-wasm.wasm
 
 # Build typescript wrapper package
-cd ../package
+cd package
 npm install
 npm run build
+cd ..
+
+# Build the demo package if --demo or --demo-dev is passed
+# --demo with create a static build
+# --demo-dev will start a development server
+if [ "$1" == "--demo" ] || [ "$1" == "--demo-dev" ]; then
+    cd package-demo
+    npm install
+    if [ "$1" == "--demo-dev" ]; then
+        npm run dev
+    else
+        npm run build
+    fi
+    cd ..
+fi