chore: add test script

Author: phani-srikar

scripts/test-swift-modelgen.sh

@@ -0,0 +1,61 @@
+#!/bin/bash
+
+# set exit on error to true
+set -e
+
+function buildModels() {
+    # download and unzip the models from S3
+    tempDirectory=$(mktemp -d)
+    cd $tempDirectory
+    wget -O models.zip  "$MODELS_S3_URL"
+    tar -xvf models.zip
+
+    # create a Swift package to test the models
+    pathToSwiftPackage=${tempDirectory}/swiftapp
+    rm -rf $pathToSwiftPackage
+    mkdir $pathToSwiftPackage && cd $pathToSwiftPackage
+    echo "Creating Swift package at $pathToSwiftPackage"
+    createSwiftPackage
+
+    cd ${tempDirectory}/models
+    for model in */; do
+        echo "Building model $model"
+        buildAndRunModel $model $pathToSwiftPackage
+    done
+}
+
+function buildAndRunModel() {
+    pwd && ls
+    modelName=$1
+    ls $modelName && cd $modelName
+    currentDirectory=$(pwd)
+    pwd && ls
+
+    pathToSwiftPackage=$2
+
+    # copy with replace all files in current directory to the swift package
+    mkdir -p $pathToSwiftPackage/Sources/models
+    rm -rf $pathToSwiftPackage/Sources/models/*
+    cp -r $currentDirectory/* $pathToSwiftPackage/Sources/models
+
+    # build and run the model
+    cd $pathToSwiftPackage
+    ls Sources/models
+    swift build && swift run
+
+    # clean up
+    cd $currentDirectory
+}
+
+function createSwiftPackage() {
+    # create a swift package
+    swift package init --type executable
+    rm -rf Package.swift
+    echo '// swift-tools-version: 5.7
+    import PackageDescription
+    let package = Package(name: "swiftapp", platforms: [.macOS(.v10_15)], dependencies: [.package(url: "https://github.com/aws-amplify/amplify-swift", from: "2.12.0")   ], targets: [ .executableTarget( name: "swiftapp",  dependencies: [ .product(name: "Amplify", package: "amplify-swift") ], path: "Sources")]
+    )' >> Package.swift
+    cat Package.swift
+}
+
+buildModels