chore: Add local wasi-sdk install for mac

install_mac.sh

@@ -1,6 +1,21 @@
-#!/bin/zsh
+#!/bin/bash
 git submodule update --init --recursive
 
+declare install_wasi_sdk_local=false
+
+case $1 in
+	--local | -l)
+		install_wasi_sdk_local=true
+		;;
+	--help | -h)
+		printf "%s [OPTION]\n\n" $0
+		printf "Options:\n"
+		printf "\t -l, --local\n"
+		printf "\t\t Install WASI-SDK locally in this project directory in place of /usr/local/opt/wasi-sdk\n"
+		exit
+		;;
+esac
+
 # Install brew
 if [[ -x "$(command -v brew)" ]]; then
 	echo "Brew install detected"
@@ -45,21 +60,31 @@ make
 cd .. || exit
 
 # Install WASI-SDK if WASI_SDK_PATH not already set
-if [[ -n "${WASI_SDK_PATH}" ]] && [[ -x "${WASI_SDK_PATH}/bin/clang" ]];; then
+if [[ -n "${WASI_SDK_PATH}" ]] && [[ -x "${WASI_SDK_PATH}/bin/clang" ]]; then
 	echo "wasi-sdk detected"
 else
-	# Install WASI-SDK 12 to /usr/local/opt/wasi-sdk
-	# This uses the same Mac OS idioms as the LLVM brew installation above
-	sudo mkdir /usr/local/opt/wasi-sdk
-	pushd /usr/local/opt/wasi-sdk || exit
-	sudo wget https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-12/wasi-sdk-12.0-macos.tar.gz
-	sudo tar -xvf wasi-sdk-12.0-macos.tar.gz
-	sudo mv wasi-sdk-12.0/* .
-	sudo rm -rf wasi-sdk-12.0
-	sudo rm wasi-sdk-12.0-macos.tar.gz
-	popd || exit
-	echo 'export WASI_SDK_PATH="/usr/local/opt/wasi-sdk/"' >> ~/.zshrc
-	source ~/.zshrc
+	if [ $install_wasi_sdk_local ]; then
+		echo "Installing WASI-SDK locally"
+		# Install locally to the project directory
+		wget https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-12/wasi-sdk-12.0-macos.tar.gz
+		tar -xvf wasi-sdk-12.0-macos.tar.gz
+		mv wasi-sdk-12.0 wasi-sdk
+		rm wasi-sdk-12.0-macos.tar.gz
+	else
+		# Install WASI-SDK 12 to /usr/local/opt/wasi-sdk
+		# This uses the same Mac OS idioms as the LLVM brew installation above
+		echo "Installing WASI-SDK to /usr/local/opt/wasi-sdk"
+		sudo mkdir /usr/local/opt/wasi-sdk
+		pushd /usr/local/opt/wasi-sdk || exit
+		sudo wget https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-12/wasi-sdk-12.0-macos.tar.gz
+		sudo tar -xvf wasi-sdk-12.0-macos.tar.gz
+		sudo mv wasi-sdk-12.0/* .
+		sudo rm -rf wasi-sdk-12.0
+		sudo rm wasi-sdk-12.0-macos.tar.gz
+		popd || exit
+		echo 'export WASI_SDK_PATH="/usr/local/opt/wasi-sdk/"' >> ~/.zshrc
+		source ~/.zshrc
+	fi
 fi
 
 # Install libuv and uvwasi