[Mac OS] Rewrite function download_with_retry (#8914)

* [Mac OS] Rewrite function download_with_retry

* Update powershell function DownloadWithRetry

images/macos/scripts/build/Install-Toolset.ps1

@@ -13,14 +13,12 @@ Function Install-Asset {
         [object] $ReleaseAsset
     )
 
-    $assetFolderPath = Join-Path "/tmp" "$($ReleaseAsset.filename)-temp-dir"
+    Write-Host "Download $($ReleaseAsset.filename) archive..."
-    New-Item -ItemType Directory -Path $assetFolderPath | Out-Null
+    $assetArchivePath = Invoke-DownloadWithRetry $ReleaseAsset.download_url
-    $assetArchivePath = Join-Path $assetFolderPath $ReleaseAsset.filename
-
-    Write-Host "Download $($ReleaseAsset.filename) archive to the $assetFolderPath folder..."
-    Start-DownloadWithRetry -Url $ReleaseAsset.download_url -DownloadPath $assetFolderPath
 
     Write-Host "Extract $($ReleaseAsset.filename) content..."
+    $assetFolderPath = Join-Path "/tmp" "$($ReleaseAsset.filename)-temp-dir"
+    New-Item -ItemType Directory -Path $assetFolderPath | Out-Null
     tar -xzf $assetArchivePath -C $assetFolderPath
 
     Write-Host "Invoke installation script..."

images/macos/scripts/build/install-actions-cache.sh

@@ -12,9 +12,9 @@ if [ ! -d $ACTIONS_RUNNER_ACTION_ARCHIVE_CACHE ]; then
     mkdir -p $ACTIONS_RUNNER_ACTION_ARCHIVE_CACHE
 fi
 
-downloadUrl=$(get_github_package_download_url "actions/action-versions" "contains(\"action-versions.tar.gz\")" "latest")
+download_url=$(get_github_package_download_url "actions/action-versions" "contains(\"action-versions.tar.gz\")" "latest")
-echo "Downloading action-versions $downloadUrl"
+echo "Downloading action-versions $download_url"
-download_with_retries "$downloadUrl" "/tmp" action-versions.tar.gz
+archive_path=$(download_with_retry "$download_url")
-tar -xzf /tmp/action-versions.tar.gz -C $ACTIONS_RUNNER_ACTION_ARCHIVE_CACHE
+tar -xzf "$archive_path" -C "$ACTIONS_RUNNER_ACTION_ARCHIVE_CACHE"
 
 invoke_tests "ActionArchiveCache"

images/macos/scripts/build/install-android-sdk.sh

@@ -43,19 +43,18 @@ ANDROID_NDK_MAJOR_LATEST=$(get_toolset_value '.android.ndk."versions"[-1]')
 # Newer version(s) require Java 11 by default
 # See https://github.com/actions/runner-images/issues/6960
 ANDROID_HOME=$HOME/Library/Android/sdk
-ANDROID_OSX_SDK_FILE=tools-macosx.zip
 
 # Download the latest command line tools so that we can accept all of the licenses.
 # See https://developer.android.com/studio/#command-tools
 cmdlineToolsVersion=$(get_toolset_value '.android."cmdline-tools"')
 
 if [[ $cmdlineToolsVersion == "latest" ]]; then
-    repositoryXmlUrl="https://dl.google.com/android/repository/repository2-1.xml"
+    repository_xml_url="https://dl.google.com/android/repository/repository2-1.xml"
-    download_with_retries $repositoryXmlUrl "/tmp" "repository2-1.xml"
+    repository_xml_path=$(download_with_retry $repository_xml_url)
     cmdlineToolsVersion=$(
     yq -p=xml \
     '.sdk-repository.remotePackage[] | select(."+@path" == "cmdline-tools;latest" and .channelRef."+@ref" == "channel-0").archives.archive[].complete.url | select(contains("commandlinetools-mac"))' \
-    /tmp/repository2-1.xml
+    "$repository_xml_path"
     )
 
     if [[ -z $cmdlineToolsVersion ]]; then
@@ -65,16 +64,15 @@ if [[ $cmdlineToolsVersion == "latest" ]]; then
 fi
 
 echo "Downloading android command line tools..."
-download_with_retries "https://dl.google.com/android/repository/${cmdlineToolsVersion}" /tmp $ANDROID_OSX_SDK_FILE
+archive_path=$(download_with_retry "https://dl.google.com/android/repository/${cmdlineToolsVersion}")
 
 echo "Uncompressing android command line tools..."
-mkdir -p $HOME/Library/Android/sdk
+mkdir -p "$ANDROID_HOME"
-unzip -q /tmp/$ANDROID_OSX_SDK_FILE -d $HOME/Library/Android/sdk/cmdline-tools
+unzip -q "$archive_path" -d "$ANDROID_HOME/cmdline-tools"
-# Command line tools need to be placed in $HOME/Library/Android/sdk/cmdline-tools/latest to function properly
+# Command line tools need to be placed in $ANDROID_HOME/cmdline-tools/latest to function properly
-mv $HOME/Library/Android/sdk/cmdline-tools/cmdline-tools $HOME/Library/Android/sdk/cmdline-tools/latest
+mv "$ANDROID_HOME/cmdline-tools/cmdline-tools" "$ANDROID_HOME/cmdline-tools/latest"
-rm -f /tmp/$ANDROID_OSX_SDK_FILE
 
-echo ANDROID_HOME is $ANDROID_HOME
+echo ANDROID_HOME is "$ANDROID_HOME"
 export PATH=$PATH:$ANDROID_HOME/cmdline-tools/latest:$ANDROID_HOME/cmdline-tools/latest/bin
 
 SDKMANAGER=$ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager
@@ -127,12 +125,10 @@ do
 done
 
 # Download SDK tools to preserve backward compatibility
-sdkTools="android-sdk-tools.zip"
+sdk_tools_version=$(get_toolset_value '.android."sdk-tools"')
-sdkToolsVersion=$(get_toolset_value '.android."sdk-tools"')
+if [ "$sdk_tools_version" != "null" ]; then
-if [ "$sdkToolsVersion" != "null" ]; then
+    sdk_tools_archive_path=$(download_with_retry "https://dl.google.com/android/repository/${sdk_tools_version}")
-    download_with_retries "https://dl.google.com/android/repository/${sdkToolsVersion}" "." $sdkTools
+    unzip -o -qq "$sdk_tools_archive_path" -d "${ANDROID_SDK_ROOT}"
-    unzip -o -qq $sdkTools -d ${ANDROID_SDK_ROOT}
-    rm -f $sdkTools
 fi
 
 invoke_tests "Android"

images/macos/scripts/build/install-aws-tools.sh

@@ -7,9 +7,8 @@
 source ~/utils/utils.sh
 
 echo Installing aws...
-AWS_CLI_URL="https://awscli.amazonaws.com/AWSCLIV2.pkg"
+awscliv2_pkg_path=$(download_with_retry "https://awscli.amazonaws.com/AWSCLIV2.pkg")
-download_with_retries $AWS_CLI_URL "/tmp"
+sudo installer -pkg "$awscliv2_pkg_path" -target /
-sudo installer -pkg /tmp/AWSCLIV2.pkg -target /
 
 echo Installing aws sam cli...
 brew tap aws/tap

images/macos/scripts/build/install-azcopy.sh

@@ -8,19 +8,14 @@ source ~/utils/utils.sh
 arch=$(get_arch)
 
 # Check MacOS architecture and if ARM install using brew
-if [ $arch == "arm64" ]; then
+if [ "$arch" == "arm64" ]; then
     brew_smart_install azcopy
 else
-    AZCOPY_DOWNLOAD_URL="https://aka.ms/downloadazcopy-v10-mac"
+    archive_path=$(download_with_retry "https://aka.ms/downloadazcopy-v10-mac")
-
+    unzip -qq "$archive_path" -d /tmp/azcopy
-    download_with_retries $AZCOPY_DOWNLOAD_URL "/tmp" "azcopy.zip"
+    extract_path=$(echo /tmp/azcopy/azcopy*)
-    unzip /tmp/azcopy.zip -d azcopy
+    cp "$extract_path/azcopy" "/usr/local/bin/azcopy"
-    AZCOPY_EXTRACTED=$(echo azcopy/azcopy*)
-    cp "$AZCOPY_EXTRACTED/azcopy" "/usr/local/bin/azcopy"
     chmod +x "/usr/local/bin/azcopy"
-
-    echo "Done, cleaning up"
-    rm -rf azcopy*
 fi
 
 invoke_tests "Common" "AzCopy"

images/macos/scripts/build/install-chrome.sh

@@ -19,20 +19,18 @@ echo "Google Chrome version is $FULL_CHROME_VERSION"
 # Get Google Chrome versions information
 CHROME_PLATFORM="mac-$arch"
 CHROME_VERSIONS_URL="https://googlechromelabs.github.io/chrome-for-testing/latest-patch-versions-per-build-with-downloads.json"
-download_with_retries "$CHROME_VERSIONS_URL" "/tmp" "latest-patch-versions-per-build-with-downloads.json"
+CHROME_VERSIONS_JSON="$(cat "$(download_with_retry "$CHROME_VERSIONS_URL")")"
-CHROME_VERSIONS_JSON=$(cat /tmp/latest-patch-versions-per-build-with-downloads.json)
 
 # Download and unpack the latest release of Chrome Driver
 CHROMEDRIVER_VERSION=$(echo "${CHROME_VERSIONS_JSON}" | jq -r '.builds["'"$CHROME_VERSION"'"].version')
 echo "Installing Chrome Driver version $CHROMEDRIVER_VERSION"
 
 CHROMEDRIVER_URL=$(echo "${CHROME_VERSIONS_JSON}" | jq -r '.builds["'"$CHROME_VERSION"'"].downloads.chromedriver[] | select(.platform=="'"${CHROME_PLATFORM}"'").url')
-CHROMEDRIVER_ARCHIVE="chromedriver-${CHROME_PLATFORM}.zip"
 CHROMEDRIVER_DIR="/usr/local/share/chromedriver-${CHROME_PLATFORM}"
 CHROMEDRIVER_BIN="$CHROMEDRIVER_DIR/chromedriver"
 
-download_with_retries "$CHROMEDRIVER_URL" "/tmp" "$CHROMEDRIVER_ARCHIVE"
+CHROMEDRIVER_ARCHIVE_PATH=$(download_with_retry "$CHROMEDRIVER_URL")
-unzip -qq /tmp/$CHROMEDRIVER_ARCHIVE -d /tmp/
+unzip -qq "$CHROMEDRIVER_ARCHIVE_PATH" -d /tmp/
 sudo mv "/tmp/chromedriver-${CHROME_PLATFORM}" "$CHROMEDRIVER_DIR"
 ln -s "$CHROMEDRIVER_BIN" /usr/local/bin/chromedriver
 echo "export CHROMEWEBDRIVER=$CHROMEDRIVER_DIR" >> "${HOME}/.bashrc"
@@ -42,11 +40,10 @@ CHROME_FOR_TESTING_VERSION=$(echo "${CHROME_VERSIONS_JSON}" | jq -r '.builds["'"
 echo "Installing Google Chrome for Testing version $CHROME_FOR_TESTING_VERSION"
 
 CHROME_FOR_TESTING_URL=$(echo "${CHROME_VERSIONS_JSON}" | jq -r '.builds["'"$CHROME_VERSION"'"].downloads.chrome[] | select(.platform=="'"${CHROME_PLATFORM}"'").url')
-CHROME_FOR_TESTING_ARCHIVE="chrome-${CHROME_PLATFORM}.zip"
 CHROME_FOR_TESTING_APP="Google Chrome for Testing.app"
 
-download_with_retries $CHROME_FOR_TESTING_URL "/tmp" $CHROME_FOR_TESTING_ARCHIVE
+CHROME_FOR_TESTING_ARCHIVE_PATH=$(download_with_retry "$CHROME_FOR_TESTING_URL")
-unzip -qq /tmp/$CHROME_FOR_TESTING_ARCHIVE -d /tmp/
+unzip -qq "$CHROME_FOR_TESTING_ARCHIVE_PATH" -d /tmp/
 mv "/tmp/chrome-${CHROME_PLATFORM}/${CHROME_FOR_TESTING_APP}" "/Applications/${CHROME_FOR_TESTING_APP}"
 
 echo "Installing Selenium"

images/macos/scripts/build/install-codeql-bundle.sh

@@ -7,21 +7,20 @@
 source ~/utils/utils.sh
 
 # Retrieve the CLI version of the latest CodeQL bundle.
-download_with_retries https://raw.githubusercontent.com/github/codeql-action/v2/src/defaults.json "/tmp" "codeql-defaults.json"
+defaults_json_path=$(download_with_retry https://raw.githubusercontent.com/github/codeql-action/v2/src/defaults.json)
-bundle_version="$(jq -r '.cliVersion' /tmp/codeql-defaults.json)"
+bundle_version="$(jq -r '.cliVersion' "$defaults_json_path")"
 bundle_tag_name="codeql-bundle-v$bundle_version"
 
 echo "Downloading CodeQL bundle $bundle_version..."
 # Note that this is the all-platforms CodeQL bundle, to support scenarios where customers run
 # different operating systems within containers.
-download_with_retries "https://github.com/github/codeql-action/releases/download/$bundle_tag_name/codeql-bundle.tar.gz" "/tmp" "codeql-bundle.tar.gz"
+archive_path=$(download_with_retry "https://github.com/github/codeql-action/releases/download/$bundle_tag_name/codeql-bundle.tar.gz")
-codeql_archive="/tmp/codeql-bundle.tar.gz"
 
 codeql_toolcache_path="$AGENT_TOOLSDIRECTORY/CodeQL/$bundle_version/x64"
 mkdir -p "$codeql_toolcache_path"
 
 echo "Unpacking the downloaded CodeQL bundle archive..."
-tar -xzf "$codeql_archive" -C "$codeql_toolcache_path"
+tar -xzf "$archive_path" -C "$codeql_toolcache_path"
 
 # Touch a file to indicate to the CodeQL Action that this bundle shipped with the toolcache. This is
 # to support overriding the CodeQL version specified in defaults.json on GitHub Enterprise.

images/macos/scripts/build/install-common-utils.sh

@@ -8,8 +8,8 @@ source ~/utils/utils.sh
 
 # Download and install YQ in cases when it is not available in the formulae as for macOS 11: https://formulae.brew.sh/formula/yq
 if is_BigSur; then
-    download_with_retries "https://github.com/mikefarah/yq/releases/latest/download/yq_darwin_amd64" "/tmp" "yq"
+    binary_path=$(download_with_retry "https://github.com/mikefarah/yq/releases/latest/download/yq_darwin_amd64")
-    sudo install /tmp/yq /usr/local/bin/yq
+    sudo install "$binary_path" /usr/local/bin/yq
 fi
 
 # Monterey needs future review:
@@ -27,12 +27,10 @@ for package in $cask_packages; do
     if is_Monterey && [[ $package == "virtualbox" ]]; then
         # Do not update VirtualBox on macOS 12 due to the issue with VMs in gurumediation state which blocks Vagrant on macOS: https://github.com/actions/runner-images/issues/8730
         # macOS host: Dropped all kernel extensions. VirtualBox relies fully on the hypervisor and vmnet frameworks provided by Apple now.
-        vbcask_url="https://raw.githubusercontent.com/Homebrew/homebrew-cask/aa3c55951fc9d687acce43e5c0338f42c1ddff7b/Casks/virtualbox.rb"
+        virtualbox_cask_path=$(download_with_retry "https://raw.githubusercontent.com/Homebrew/homebrew-cask/aa3c55951fc9d687acce43e5c0338f42c1ddff7b/Casks/virtualbox.rb")
-        download_with_retries $vbcask_url
+        brew install "$virtualbox_cask_path"
-        brew install ./virtualbox.rb
-        rm ./virtualbox.rb
     else
-        brew install --cask $package
+        brew install --cask "$package"
     fi
 done
 

images/macos/scripts/build/install-dotnet.sh

@@ -12,8 +12,8 @@ arch=$(get_arch)
 
 # Download installer from dot.net and keep it locally
 DOTNET_INSTALL_SCRIPT="https://dot.net/v1/dotnet-install.sh"
-download_with_retries $DOTNET_INSTALL_SCRIPT .
+install_script_path=$(download_with_retry $DOTNET_INSTALL_SCRIPT)
-chmod +x ./dotnet-install.sh
+chmod +x "$install_script_path"
 
 ARGS_LIST=()
 echo "Parsing dotnet SDK (except rc and preview versions) from .json..."
@@ -22,15 +22,15 @@ DOTNET_VERSIONS=($(get_toolset_value ".dotnet.arch[\"$arch\"].versions | .[]"))
 
 for DOTNET_VERSION in "${DOTNET_VERSIONS[@]}"; do
     RELEASE_URL="https://raw.githubusercontent.com/dotnet/core/main/release-notes/${DOTNET_VERSION}/releases.json"
-    download_with_retries "$RELEASE_URL" "/tmp" "dotnet_${DOTNET_VERSION}.json"
+    releases_json_file=$(download_with_retry "$RELEASE_URL")
 
     if [[ $DOTNET_VERSION == "6.0" ]]; then
         ARGS_LIST+=(
-            $(cat /tmp/dotnet_${DOTNET_VERSION}.json | jq -r 'first(.releases[].sdks[]?.version | select(contains("preview") or contains("rc") | not))')
+            $(cat "$releases_json_file" | jq -r 'first(.releases[].sdks[]?.version | select(contains("preview") or contains("rc") | not))')
         )
     else
         ARGS_LIST+=(
-            $(cat /tmp/dotnet_${DOTNET_VERSION}.json | \
+            $(cat "$releases_json_file" | \
             jq -r '.releases[].sdk."version"' | grep -v -E '\-(preview|rc)\d*' | \
             sort -r | rev | uniq -s 2 | rev)
         )
@@ -38,11 +38,9 @@ for DOTNET_VERSION in "${DOTNET_VERSIONS[@]}"; do
 done
 
 for ARGS in "${ARGS_LIST[@]}"; do
-    ./dotnet-install.sh --version $ARGS -NoPath --arch $arch
+    "$install_script_path" --version $ARGS -NoPath --arch $arch
 done
 
-rm ./dotnet-install.sh
-
 # dotnet installer doesn't create symlink to executable in /user/local/bin
 # Moreover at that moment /user/local/bin doesn't exist (though already added to $PATH)
 ln -s ~/.dotnet/dotnet /usr/local/bin/dotnet

images/macos/scripts/build/install-edge.sh

@@ -17,29 +17,23 @@ echo "Version of Microsoft Edge: ${EDGE_VERSION}"
 
 echo "Installing Microsoft Edge WebDriver..."
 
-EDGE_DRIVER_VERSION_URL="https://msedgedriver.azureedge.net/LATEST_RELEASE_${EDGE_VERSION_MAJOR}_MACOS"
+EDGE_DRIVER_VERSION_FILE_PATH=$(download_with_retry "https://msedgedriver.azureedge.net/LATEST_RELEASE_${EDGE_VERSION_MAJOR}_MACOS")
-download_with_retries "$EDGE_DRIVER_VERSION_URL" "/tmp" "edge-version"
+EDGE_DRIVER_LATEST_VERSION=$(iconv -f utf-16 -t utf-8 "$EDGE_DRIVER_VERSION_FILE_PATH" | tr -d '\r')
-EDGE_DRIVER_LATEST_VERSION=$(cat /tmp/edge-version | iconv -f utf-16 -t utf-8 | tr -d '\r')
 EDGE_DRIVER_URL="https://msedgedriver.azureedge.net/${EDGE_DRIVER_LATEST_VERSION}/edgedriver_mac64.zip"
 
 echo "Compatible version of WebDriver: ${EDGE_DRIVER_LATEST_VERSION}"
 
-pushd "/tmp" > /dev/null
+EDGE_DRIVER_ARCHIVE_PATH=$(download_with_retry "$EDGE_DRIVER_URL")
-download_with_retries $EDGE_DRIVER_URL "." "edgedriver.zip"
 
 # Move webdriver to the separate directory to be consistent with the docs
 # https://docs.microsoft.com/en-us/azure/devops/pipelines/test/continuous-test-selenium?view=azure-devops#decide-how-you-will-deploy-and-test-your-app
 
-APPLICATION="/usr/local/bin/msedgedriver"
+EDGE_DRIVER_DIR="/usr/local/share/edge_driver"
-EDGEDRIVER_DIR="/usr/local/share/edge_driver"
+mkdir -p $EDGE_DRIVER_DIR
-EDGEDRIVER_BIN="$EDGEDRIVER_DIR/msedgedriver"
+unzip -qq "$EDGE_DRIVER_ARCHIVE_PATH" -d "$EDGE_DRIVER_DIR"
+ln -s "$EDGE_DRIVER_DIR/msedgedriver" "/usr/local/bin/msedgedriver"
 
-mkdir -p $EDGEDRIVER_DIR
+echo "export EDGEWEBDRIVER=${EDGE_DRIVER_DIR}" >> "${HOME}/.bashrc"
-
-unzip "edgedriver.zip" -d $EDGEDRIVER_DIR
-ln -s "$EDGEDRIVER_BIN" $APPLICATION
-echo "export EDGEWEBDRIVER=${EDGEDRIVER_DIR}" >> "${HOME}/.bashrc"
-popd > /dev/null
 
 # Configure Edge Updater to prevent auto update
 # https://learn.microsoft.com/en-us/deployedge/edge-learnmore-edgeupdater-for-macos

images/macos/scripts/build/install-homebrew.sh

@@ -9,8 +9,8 @@ source ~/utils/utils.sh
 arch=$(get_arch)
 
 echo "Installing Homebrew..."
-download_with_retries "https://raw.githubusercontent.com/Homebrew/install/master/install.sh" "/tmp" "homebrew-install.sh"
+homebrew_installer_path=$(download_with_retry "https://raw.githubusercontent.com/Homebrew/install/master/install.sh")
-/bin/bash /tmp/homebrew-install.sh
+/bin/bash "$homebrew_installer_path"
 
 if [[ $arch == "arm64" ]]; then
   /opt/homebrew/bin/brew update

images/macos/scripts/build/install-miniconda.sh

@@ -6,10 +6,9 @@
 
 source ~/utils/utils.sh
 
-download_with_retries "https://repo.anaconda.com/miniconda/Miniconda3-latest-MacOSX-x86_64.sh" "/tmp" "miniconda.sh"
+miniconda_installer_path=$(download_with_retry "https://repo.anaconda.com/miniconda/Miniconda3-latest-MacOSX-x86_64.sh")
-
+chmod +x "$miniconda_installer_path"
-chmod +x /tmp/miniconda.sh
+sudo "$miniconda_installer_path" -b -p /usr/local/miniconda
-sudo /tmp/miniconda.sh -b -p /usr/local/miniconda
 
 # Chmod with full permissions recursively to avoid permissions restrictions
 sudo chmod -R 777 /usr/local/miniconda

images/macos/scripts/build/install-mono.sh

@@ -7,43 +7,38 @@
 # Source utility functions
 source ~/utils/utils.sh
 
-# Create a temporary directory to store downloaded files
-TMP_DIR=$(mktemp -d /tmp/visualstudio.XXXX)
-
 # Install Mono Framework
 MONO_VERSION_FULL=$(get_toolset_value '.mono.framework.version')
 MONO_VERSION=$(echo "$MONO_VERSION_FULL" | cut -d. -f 1,2,3)
 MONO_VERSION_SHORT=$(echo $MONO_VERSION_FULL | cut -d. -f 1,2)
 MONO_PKG_URL="https://download.mono-project.com/archive/${MONO_VERSION}/macos-10-universal/MonoFramework-MDK-${MONO_VERSION_FULL}.macos10.xamarin.universal.pkg"
-MONO_PKG_NAME=${MONO_PKG_URL##*/}
 MONO_VERSIONS_PATH='/Library/Frameworks/Mono.framework/Versions'
 
-download_with_retries "$MONO_PKG_URL" "$TMP_DIR"
+MONO_PKG_PATH=$(download_with_retry "$MONO_PKG_URL")
-echo "Installing $MONO_PKG_NAME..."
+echo "Installing Mono Framework ${MONO_VERSION_FULL}..."
-sudo installer -pkg "$TMP_DIR/$MONO_PKG_NAME" -target /
+sudo installer -pkg "$MONO_PKG_PATH" -target /
 
 # Download and install NUnit console
 NUNIT_VERSION=$(get_toolset_value '.mono.nunit.version')
 NUNIT_ARCHIVE_URL="https://github.com/nunit/nunit-console/releases/download/${NUNIT_VERSION}/NUnit.Console-${NUNIT_VERSION}.zip"
-NUNIT_ARCHIVE_NAME=${NUNIT_ARCHIVE_URL##*/}
 NUNIT_PATH="/Library/Developer/nunit"
 NUNIT_VERSION_PATH="$NUNIT_PATH/$NUNIT_VERSION"
 
-download_with_retries "$NUNIT_ARCHIVE_URL" "$TMP_DIR"
+NUNIT_ARCHIVE_PATH=$(download_with_retry "$NUNIT_ARCHIVE_URL")
-echo "Installing $NUNIT_ARCHIVE_NAME..."
+echo "Installing NUnit ${NUNIT_VERSION}..."
 sudo mkdir -p "$NUNIT_VERSION_PATH"
-sudo unzip -q "$TMP_DIR/$NUNIT_ARCHIVE_NAME" -d "$NUNIT_VERSION_PATH"
+sudo unzip -q "$NUNIT_ARCHIVE_PATH" -d "$NUNIT_VERSION_PATH"
 
 # Create a wrapper script for nunit3-console
 echo "Creating nunit3-console wrapper..."
-NUNIT3_CONSOLE_WRAPPER=nunit3-console
+NUNIT3_CONSOLE_WRAPPER=$(mktemp)
-cat <<EOF > "${TMP_DIR}/${NUNIT3_CONSOLE_WRAPPER}"
+cat <<EOF > "$NUNIT3_CONSOLE_WRAPPER"
 #!/bin/bash -e -o pipefail
 exec ${MONO_VERSIONS_PATH}/${MONO_VERSION}/bin/mono --debug \$MONO_OPTIONS $NUNIT_VERSION_PATH/nunit3-console.exe "\$@"
 EOF
-cat "${TMP_DIR}/${NUNIT3_CONSOLE_WRAPPER}"
+cat "$NUNIT3_CONSOLE_WRAPPER"
-sudo chmod +x "${TMP_DIR}/${NUNIT3_CONSOLE_WRAPPER}"
+sudo chmod +x "$NUNIT3_CONSOLE_WRAPPER"
-sudo mv "${TMP_DIR}/${NUNIT3_CONSOLE_WRAPPER}" "${MONO_VERSIONS_PATH}/${MONO_VERSION}/Commands/${NUNIT3_CONSOLE_WRAPPER}"
+sudo mv "$NUNIT3_CONSOLE_WRAPPER" "${MONO_VERSIONS_PATH}/${MONO_VERSION}/Commands/nunit3-console"
 
 # Create a symlink for the short version of Mono (e.g., 6.12)
 echo "Creating short symlink '${MONO_VERSION_SHORT}'..."

images/macos/scripts/build/install-node.sh

@@ -13,8 +13,8 @@ brew_smart_install "node@$defaultVersion"
 brew link node@$defaultVersion --force --overwrite
 
 echo Installing yarn...
-download_with_retries "https://yarnpkg.com/install.sh" "/tmp" "yarn-install.sh"
+yarn_installer_path=$(download_with_retry "https://yarnpkg.com/install.sh")
-bash /tmp/yarn-install.sh
+bash "$yarn_installer_path"
 
 if is_BigSur || is_Monterey; then
   npm_global_packages=$(get_toolset_value '.npm.global_packages[].name')

images/macos/scripts/build/install-nvm.sh

@@ -7,25 +7,22 @@
 source ~/utils/utils.sh
 
 [ -n "$API_PAT" ] && authString=(-H "Authorization: token ${API_PAT}")
-VERSION=$(curl "${authString[@]}" -fsSL https://api.github.com/repos/nvm-sh/nvm/releases/latest | jq -r '.tag_name')
+nvm_version=$(curl "${authString[@]}" -fsSL https://api.github.com/repos/nvm-sh/nvm/releases/latest | jq -r '.tag_name')
-download_with_retries "https://raw.githubusercontent.com/nvm-sh/nvm/$VERSION/install.sh" "/tmp" "nvm-install.sh"
+nvm_installer_path=$(download_with_retry "https://raw.githubusercontent.com/nvm-sh/nvm/$nvm_version/install.sh")
-bash /tmp/nvm-install.sh
 
-if [ $? -eq 0 ]; then
+if bash "$nvm_installer_path"; then
     . ~/.bashrc
     nvm --version
-        nodeVersions=$(get_toolset_value '.node.nvm_versions[]')
+    for version in $(get_toolset_value '.node.nvm_versions[]'); do
-        for version in ${nodeVersions[@]}
+        nvm install "v${version}"
-        do
-                nvm install v${version}
     done
 
     # set system node as default
     nvm alias default system
-else
-        echo error
-fi
     
     echo "Node version manager has been installed successfully"
+else
+    echo "Node version manager installation failed"
+fi
 
 invoke_tests "Node" "nvm"

images/macos/scripts/build/install-openjdk.sh

@@ -34,16 +34,16 @@ installOpenJDK() {
     local JAVA_VERSION=$1
 
     # Get link for Java binaries and Java version
-    download_with_retries "https://api.adoptium.net/v3/assets/latest/${JAVA_VERSION}/hotspot" "/tmp" "openjdk-hotspot.json"
+    hotspot_json_path=$(download_with_retry "https://api.adoptium.net/v3/assets/latest/${JAVA_VERSION}/hotspot")
 
     if [[ $arch == "arm64" ]]; then
-        asset=$(jq -r '.[] | select(.binary.os=="mac" and .binary.image_type=="jdk" and .binary.architecture=="aarch64")' /tmp/openjdk-hotspot.json)
+        asset=$(jq -r '.[] | select(.binary.os=="mac" and .binary.image_type=="jdk" and .binary.architecture=="aarch64")' "$hotspot_json_path")
     else
-        asset=$(jq -r '.[] | select(.binary.os=="mac" and .binary.image_type=="jdk" and .binary.architecture=="x64")' /tmp/openjdk-hotspot.json)
+        asset=$(jq -r '.[] | select(.binary.os=="mac" and .binary.image_type=="jdk" and .binary.architecture=="x64")' "$hotspot_json_path")
     fi
 
-    archivePath=$(echo ${asset} | jq -r '.binary.package.link')
+    archive_url=$(echo "$asset" | jq -r '.binary.package.link')
-    fullVersion=$(echo ${asset} | jq -r '.version.semver' | tr '+' '-')
+    fullVersion=$(echo "$asset" | jq -r '.version.semver' | tr '+' '-')
 
     # Remove 'LTS' suffix from the version if present
     fullVersion="${fullVersion//.LTS/}"
@@ -58,12 +58,12 @@ installOpenJDK() {
     fi
 
     # Download and extract Java binaries
-    download_with_retries ${archivePath} /tmp OpenJDK-${fullVersion}.tar.gz
+    archive_path=$(download_with_retry "$archive_url")
 
     echo "Creating ${javaToolcacheVersionArchPath} directory"
     mkdir -p ${javaToolcacheVersionArchPath}
 
-    tar -xf /tmp/OpenJDK-${fullVersion}.tar.gz -C ${javaToolcacheVersionArchPath} --strip-components=1
+    tar -xf "$archive_path" -C ${javaToolcacheVersionArchPath} --strip-components=1
 
     # Create complete file
     if [[ $arch == "arm64" ]]; then

images/macos/scripts/build/install-powershell.sh

@@ -9,16 +9,15 @@ source ~/utils/utils.sh
 echo Installing PowerShell...
 arch=$(get_arch)
 
-download_with_retries "https://raw.githubusercontent.com/PowerShell/PowerShell/master/tools/metadata.json" "/tmp" "powershell-metadata.json"
+metadata_json_path=$(download_with_retry "https://raw.githubusercontent.com/PowerShell/PowerShell/master/tools/metadata.json")
-psver=$(cat /tmp/powershell-metadata.json | jq -r '.LTSReleaseTag[0]')
+version=$(jq -r '.LTSReleaseTag[0]' "$metadata_json_path")
-psDownloadUrl=$(get_github_package_download_url "PowerShell/PowerShell" "contains(\"osx-$arch.pkg\")" "$psver" "$API_PAT")
+download_url=$(get_github_package_download_url "PowerShell/PowerShell" "contains(\"osx-$arch.pkg\")" "$version" "$API_PAT")
-download_with_retries $psDownloadUrl "/tmp" "powershell.pkg"
+pkg_path=$(download_with_retry "$download_url")
 
 # Work around the issue on macOS Big Sur 11.5 or higher for possible error message ("can't be opened because Apple cannot check it for malicious software") when installing the package
-sudo xattr -rd com.apple.quarantine /tmp/powershell.pkg
+sudo xattr -rd com.apple.quarantine "$pkg_path"
 
-
+sudo installer -pkg "$pkg_path" -target /
-sudo installer -pkg /tmp/powershell.pkg -target /
 
 # Install PowerShell modules
 psModules=$(get_toolset_value '.powershellModules[].name')

images/macos/scripts/build/install-pypy.sh

@@ -10,13 +10,12 @@ function InstallPyPy
 {
     PACKAGE_URL=$1
 
-    PACKAGE_TAR_NAME=$(echo $PACKAGE_URL | awk -F/ '{print $NF}')
+    PACKAGE_TAR_NAME=$(basename "$PACKAGE_URL")
     echo "Downloading tar archive '$PACKAGE_TAR_NAME'"
-    PACKAGE_TAR_TEMP_PATH="/tmp/$PACKAGE_TAR_NAME"
+    archive_path=$(download_with_retry "$PACKAGE_URL")
-    download_with_retries $PACKAGE_URL "/tmp" "$PACKAGE_TAR_NAME"
 
     echo "Expand '$PACKAGE_TAR_NAME' to the /tmp folder"
-    tar xf $PACKAGE_TAR_TEMP_PATH -C /tmp
+    tar xf "$archive_path" -C /tmp
 
     # Get Python version
     PACKAGE_NAME=${PACKAGE_TAR_NAME/.tar.bz2/}
@@ -70,17 +69,14 @@ function InstallPyPy
 
     echo "Create complete file"
     touch $PYPY_TOOLCACHE_VERSION_PATH/x64.complete
-
-    echo "Remove '$PACKAGE_TAR_TEMP_PATH'"
-    rm -f $PACKAGE_TAR_TEMP_PATH
 }
 
 arch=$(get_arch)
-download_with_retries "https://downloads.python.org/pypy/versions.json" "/tmp" "pypy-versions.json"
+versions_json_path=$(download_with_retry "https://downloads.python.org/pypy/versions.json")
 toolsetVersions=$(get_toolset_value '.toolcache[] | select(.name | contains("PyPy")) | .arch.'$arch'.versions[]')
 
 for toolsetVersion in $toolsetVersions; do
-    latestMajorPyPyVersion=$(cat /tmp/pypy-versions.json |
+    latestMajorPyPyVersion=$(cat "$versions_json_path" |
         jq -r --arg toolsetVersion $toolsetVersion '.[]
         | select((.python_version | startswith($toolsetVersion)) and .stable == true).files[]
         | select(.platform == "darwin").download_url' | head -1)

images/macos/scripts/build/install-python.sh

@@ -10,19 +10,19 @@ echo "Installing Python Tooling"
 
 if is_Monterey || is_BigSur; then
     echo "Install latest Python 2"
-    Python2Url="https://www.python.org/ftp/python/2.7.18/python-2.7.18-macosx10.9.pkg"
+    python2_pkg=$(download_with_retry "https://www.python.org/ftp/python/2.7.18/python-2.7.18-macosx10.9.pkg")
-    download_with_retries $Python2Url "/tmp" "python2.pkg"
 
-    sudo installer -showChoiceChangesXML -pkg /tmp/python2.pkg -target / > /tmp/python2_choices.xml
+    choice_changes_xml=$(mktemp /tmp/python2_choice_changes.xml.XXXXXX)
+    sudo installer -showChoiceChangesXML -pkg "$python2_pkg" -target / | tee "$choice_changes_xml" > /dev/null
 
     # To avoid symlink conflicts, remove tools installation in /usr/local/bin using installer choices
-    xmllint --shell /tmp/python2_choices.xml <<EOF
+    xmllint --shell "$choice_changes_xml" <<EOF
     cd //array/dict[string[text()='org.python.Python.PythonUnixTools-2.7']]/integer
     set 0
     save
 EOF
 
-    sudo installer -applyChoiceChangesXML /tmp/python2_choices.xml -pkg /tmp/python2.pkg -target /
+    sudo installer -applyChoiceChangesXML "$choice_changes_xml" -pkg "$python2_pkg" -target /
 
     pip install --upgrade pip
 

images/macos/scripts/build/install-ruby.sh

@@ -45,11 +45,10 @@ if ! is_Arm64; then
         mkdir -p $RUBY_VERSION_PATH
 
         echo "Downloading tar archive $PACKAGE_TAR_NAME"
-        DOWNLOAD_URL="https://github.com/ruby/ruby-builder/releases/download/toolcache/${PACKAGE_TAR_NAME}"
+        ARCHIVE_PATH=$(download_with_retry "https://github.com/ruby/ruby-builder/releases/download/toolcache/${PACKAGE_TAR_NAME}")
-        download_with_retries $DOWNLOAD_URL "/tmp" $PACKAGE_TAR_NAME
 
         echo "Expand '$PACKAGE_TAR_NAME' to the '$RUBY_VERSION_PATH' folder"
-        tar xf "/tmp/$PACKAGE_TAR_NAME" -C $RUBY_VERSION_PATH
+        tar xf "$ARCHIVE_PATH" -C $RUBY_VERSION_PATH
         COMPLETE_FILE_PATH="$RUBY_VERSION_PATH/x64.complete"
         if [ ! -f $COMPLETE_FILE_PATH ]; then
             echo "Create complete file"

images/macos/scripts/build/install-visualstudio.sh

@@ -21,18 +21,16 @@ install_vsmac() {
     fi
 
     echo "Installing Visual Studio ${VSMAC_VERSION} for Mac"
-    TMPMOUNT=`/usr/bin/mktemp -d /tmp/visualstudio.XXXX`
+    TMPMOUNT=$(/usr/bin/mktemp -d /tmp/visualstudio.XXXX)
-    TMPMOUNT_DOWNLOADS="$TMPMOUNT/downloads"
+    mkdir -p "$TMPMOUNT/downloads"
-    mkdir $TMPMOUNT_DOWNLOADS
 
-    download_with_retries $VSMAC_DOWNLOAD_URL $TMPMOUNT_DOWNLOADS
+    VSMAC_INSTALLER=$(download_with_retry "$VSMAC_DOWNLOAD_URL" "$TMPMOUNT/downloads/${VSMAC_DOWNLOAD_URL##*/}")
 
     echo "Mounting Visual Studio..."
-    VISUAL_STUDIO_NAME=${VSMAC_DOWNLOAD_URL##*/}
+    hdiutil attach "$VSMAC_INSTALLER" -mountpoint "$TMPMOUNT"
-    hdiutil attach "$TMPMOUNT_DOWNLOADS/$VISUAL_STUDIO_NAME" -mountpoint "$TMPMOUNT"
 
     echo "Moving Visual Studio to /Applications/..."
-    pushd $TMPMOUNT
+    pushd "$TMPMOUNT"
     tar cf - "./Visual Studio.app" | tar xf - -C /Applications/
 
     if [ $VSMAC_VERSION != $VSMAC_DEFAULT ]; then

images/macos/scripts/helpers/Common.Helpers.psm1

@@ -125,49 +125,53 @@ function Invoke-ValidateCommand {
     }
 }
 
-function Start-DownloadWithRetry {
+function Invoke-DownloadWithRetry {
     Param
     (
         [Parameter(Mandatory)]
         [string] $Url,
-        [string] $Name,
+        [Alias("Destination")]
-        [string] $DownloadPath = "${env:Temp}",
+        [string] $Path
-        [int] $Retries = 20,
-        [int] $Interval = 30
     )
 
-    if ([String]::IsNullOrEmpty($Name)) {
+    if (-not $Path) {
-        $Name = [IO.Path]::GetFileName($Url)
+        $invalidChars = [IO.Path]::GetInvalidFileNameChars() -join ''
+        $re = "[{0}]" -f [RegEx]::Escape($invalidChars)
+        $fileName = [IO.Path]::GetFileName($Url) -replace $re
+
+        if ([String]::IsNullOrEmpty($fileName)) {
+            $fileName = [System.IO.Path]::GetRandomFileName()
+        }
+        $Path = Join-Path -Path "/tmp" -ChildPath $fileName
     }
 
-    $filePath = Join-Path -Path $DownloadPath -ChildPath $Name
+    Write-Host "Downloading package from $Url to $Path..."
 
-    #Default retry logic for the package.
+    $interval = 30
-    while ($Retries -gt 0)
+    $downloadStartTime = Get-Date
-    {
+    for ($retries = 20; $retries -gt 0; $retries--) {
-        try
+        try {
-        {
+            $attemptStartTime = Get-Date
-            Write-Host "Downloading package from: $Url to path $filePath ."
+            (New-Object System.Net.WebClient).DownloadFile($Url, $Path)
-            (New-Object System.Net.WebClient).DownloadFile($Url, $filePath)
+            $attemptSeconds = [math]::Round(($(Get-Date) - $attemptStartTime).TotalSeconds, 2)
+            Write-Host "Package downloaded in $attemptSeconds seconds"
             break
-        }
+        } catch {
-        catch
+            $attemptSeconds = [math]::Round(($(Get-Date) - $attemptStartTime).TotalSeconds, 2)
-        {
+            Write-Warning "Package download failed in $attemptSeconds seconds"
-            Write-Host "There is an error during package downloading:`n $_"
+            Write-Warning $_.Exception.Message
-            $Retries--
-
-            if ($Retries -eq 0)
-            {
-                Write-Host "File can't be downloaded. Please try later or check that file exists by url: $Url"
-                exit 1
         }
             
-            Write-Host "Waiting $Interval seconds before retrying. Retries left: $Retries"
+        if ($retries -eq 0) {
-            Start-Sleep -Seconds $Interval
+            $totalSeconds = [math]::Round(($(Get-Date) - $downloadStartTime).TotalSeconds, 2)
-        }
+            throw "Package download failed after $totalSeconds seconds"
         }
 
-    return $filePath
+        Write-Warning "Waiting $interval seconds before retrying (retries left: $retries)..."
+        Start-Sleep -Seconds $interval
+    }
+
+    return $Path
 }
 
 function Add-EnvironmentVariable {

images/macos/scripts/helpers/Xcode.Installer.psm1

@@ -32,9 +32,8 @@ function Invoke-DownloadXcodeArchive {
     $xcodeFileName = 'Xcode-{0}.xip' -f $Version
     $xcodeUri = '{0}{1}?{2}'-f ${env:XCODE_INSTALL_STORAGE_URL}, $xcodeFileName, ${env:XCODE_INSTALL_SAS}
 
-    Start-DownloadWithRetry -Url $xcodeUri -DownloadPath $tempXipDirectory.FullName -Name $xcodeFileName
+    Invoke-DownloadWithRetry -Url $xcodeUri -Path (Join-Path $tempXipDirectory.FullName $xcodeFileName) | Out-Null
     return $tempXipDirectory
-
 }
 
 function Resolve-ExactXcodeVersion {

images/macos/scripts/helpers/utils.sh

@@ -1,49 +1,44 @@
 #!/bin/bash -e -o pipefail
 
-download_with_retries() {
+download_with_retry() {
-# Due to restrictions of bash functions, positional arguments are used here.
+    url=$1
-# In case if you using latest argument NAME, you should also set value to all previous parameters.
+    download_path=$2
-# Example: download_with_retries $ANDROID_SDK_URL "." "android_sdk.zip"
-    local URL="$1"
-    local DEST="${2:-.}"
-    local NAME="${3:-${URL##*/}}"
-    local COMPRESSED="$4"
 
-    if [[ $COMPRESSED == "compressed" ]]; then
+    if [ -z "$download_path" ]; then
-        local COMMAND="curl $URL -4 -sL --compressed -o '$DEST/$NAME' -w '%{http_code}'"
+        download_path="/tmp/$(basename "$url")"
-    else
-        local COMMAND="curl $URL -4 -sL -o '$DEST/$NAME' -w '%{http_code}'"
     fi
 
-    # Save current errexit state and disable it to prevent unexpected exit on error
+    echo "Downloading package from $url to $download_path..." >&2
-    if echo $SHELLOPTS | grep '\(^\|:\)errexit\(:\|$\)' > /dev/null;
-    then
-        local ERR_EXIT_ENABLED=true
-    else
-        local ERR_EXIT_ENABLED=false
-    fi
-    set +e
 
-    echo "Downloading '$URL' to '${DEST}/${NAME}'..."
-    retries=20
     interval=30
-    while [ $retries -gt 0 ]; do
+    download_start_time=$(date +%s)
-        ((retries--))
+
-        test "$ERR_EXIT_ENABLED" = true && set +e
+    for ((retries=20; retries>0; retries--)); do
-        http_code=$(eval $COMMAND)
+        attempt_start_time=$(date +%s)
-        exit_code=$?
+        if http_code=$(curl -4sSLo "$download_path" "$url" -w '%{http_code}'); then
-        test "$ERR_EXIT_ENABLED" = true && set -e
+            attempt_seconds=$(($(date +%s) - attempt_start_time))
-        if [ $http_code -eq 200 ] && [ $exit_code -eq 0 ]; then
+            if [ "$http_code" -eq 200 ]; then
-            echo "Download completed"
+                echo "Package downloaded in $attempt_seconds seconds" >&2
-            return 0
+                break
             else
-            echo "Error — Either HTTP response code for '$URL' is wrong - '$http_code' or exit code is not 0 - '$exit_code'. Waiting $interval seconds before the next attempt, $retries attempts left"
+                echo "Received HTTP status code $http_code after $attempt_seconds seconds" >&2
-            sleep 30
             fi
+        else
+            attempt_seconds=$(($(date +%s) - attempt_start_time))
+            echo "Package download failed in $attempt_seconds seconds" >&2
+        fi
+
+        if [ $retries -eq 0 ]; then
+            total_seconds=$(($(date +%s) - download_start_time))
+            echo "Package download failed after $total_seconds seconds" >&2
+            exit 1
+        fi
+
+        echo "Waiting $interval seconds before retrying (retries left: $retries)..." >&2
+        sleep $interval
     done
 
-    echo "Could not download $URL"
+    echo "$download_path"
-    return 1
 }
 
 is_Arm64() {

images/macos/scripts/helpers/xamarin-utils.sh

@@ -4,15 +4,6 @@ source ~/utils/utils.sh
 
 # Xamarin can clean their SDKs while updating to newer versions,
 # so we should be able to detect it during image generation
-downloadAndInstallPKG() {
-  local PKG_URL=$1
-  local PKG_NAME=${PKG_URL##*/}
-
-  download_with_retries $PKG_URL
-
-  echo "Installing $PKG_NAME..."
-  sudo installer -pkg "$TMPMOUNT/$PKG_NAME" -target /
-}
 
 buildVSMacDownloadUrl() {
     echo "https://dl.xamarin.com/VsMac/VisualStudioForMac-${1}.dmg"
@@ -41,7 +32,8 @@ installMono() {
   local MONO_FOLDER_NAME=$(echo $VERSION | cut -d. -f 1,2,3)
   local SHORT_VERSION=$(echo $VERSION | cut -d. -f 1,2)
   local PKG_URL=$(buildMonoDownloadUrl $VERSION)
-  downloadAndInstallPKG $PKG_URL
+
+  sudo installer -pkg "$(download_with_retry "$PKG_URL")" -target /
 
   echo "Installing nunit3-console for Mono "$VERSION
   installNunitConsole $MONO_FOLDER_NAME
@@ -59,7 +51,8 @@ installXamarinIOS() {
   echo "Installing Xamarin.iOS ${VERSION}..."
   local SHORT_VERSION=$(echo $VERSION | cut -d. -f 1,2)
   local PKG_URL=$(buildXamariniIOSDownloadUrl $VERSION)
-  downloadAndInstallPKG $PKG_URL
+
+  sudo installer -pkg "$(download_with_retry "$PKG_URL")" -target /
 
   echo "Creating short symlink '${SHORT_VERSION}'"
   sudo ln -s ${IOS_VERSIONS_PATH}/${VERSION} ${IOS_VERSIONS_PATH}/${SHORT_VERSION}
@@ -74,7 +67,8 @@ installXamarinMac() {
   echo "Installing Xamarin.Mac ${VERSION}..."
   local SHORT_VERSION=$(echo $VERSION | cut -d. -f 1,2)
   local PKG_URL=$(buildXamarinMacDownloadUrl $VERSION)
-  downloadAndInstallPKG $PKG_URL
+
+  sudo installer -pkg "$(download_with_retry "$PKG_URL")" -target /
 
   echo "Creating short symlink '${SHORT_VERSION}'"
   sudo ln -s ${MAC_VERSIONS_PATH}/${VERSION} ${MAC_VERSIONS_PATH}/${SHORT_VERSION}
@@ -89,7 +83,8 @@ installXamarinAndroid() {
   echo "Installing Xamarin.Android ${VERSION}..."
   local SHORT_VERSION=$(echo $VERSION | cut -d. -f 1,2)
   local PKG_URL=$(buildXamarinAndroidDownloadUrl $VERSION)
-  downloadAndInstallPKG $PKG_URL
+
+  sudo installer -pkg "$(download_with_retry "$PKG_URL")" -target /
 
   if [ "$VERSION" == "9.4.1.0" ]; then
     # Fix symlinks for broken Xamarin.Android
@@ -159,46 +154,27 @@ fixXamarinAndroidSymlinksInLibDir() {
 
 installNunitConsole() {
   local MONO_VERSION=$1
+  local TMP_WRAPPER_PATH=$(mktemp)
 
-  cat <<EOF > ${TMPMOUNT}/${NUNIT3_CONSOLE_BIN}
+  cat <<EOF > "$TMP_WRAPPER_PATH"
 #!/bin/bash -e -o pipefail
 exec /Library/Frameworks/Mono.framework/Versions/${MONO_VERSION}/bin/mono --debug \$MONO_OPTIONS $NUNIT3_PATH/nunit3-console.exe "\$@"
 EOF
-  sudo chmod +x ${TMPMOUNT}/${NUNIT3_CONSOLE_BIN}
+  sudo chmod +x "$TMP_WRAPPER_PATH"
-  sudo mv ${TMPMOUNT}/${NUNIT3_CONSOLE_BIN} ${MONO_VERSIONS_PATH}/${MONO_VERSION}/Commands/${NUNIT3_CONSOLE_BIN}
+  sudo mv "$TMP_WRAPPER_PATH" "${MONO_VERSIONS_PATH}/${MONO_VERSION}/Commands/nunit3-console"
 }
 
 downloadNUnitConsole() {
   echo "Downloading NUnit 3..."
-    local NUNIT3_LOCATION='https://github.com/nunit/nunit-console/releases/download/3.6.1/NUnit.Console-3.6.1.zip'
+  local NUNIT3_VERSION='3.6.1'
-    local NUNIT_PATH="/Library/Developer/nunit"
+  local NUNIT3_LOCATION="https://github.com/nunit/nunit-console/releases/download/${NUNIT3_VERSION}/NUnit.Console-${NUNIT3_VERSION}.zip"
-    NUNIT3_PATH="$NUNIT_PATH/3.6.1"
+  local NUNIT3_PATH="/Library/Developer/nunit/${NUNIT3_VERSION}"
 
-    pushd $TMPMOUNT
+  NUNIT3_ARCHIVE=$(download_with_retry $NUNIT3_LOCATION)
-
-    sudo mkdir -p $NUNIT3_PATH
-    download_with_retries $NUNIT3_LOCATION "." "nunit3.zip"
 
   echo "Installing NUnit 3..."
-    sudo unzip nunit3.zip -d $NUNIT3_PATH
+  sudo mkdir -p $NUNIT3_PATH
-    NUNIT3_CONSOLE_BIN=nunit3-console
+  sudo unzip "$NUNIT3_ARCHIVE" -d $NUNIT3_PATH
-
-    popd
-}
-
-installNuget() {
-  local MONO_VERSION=$1
-  local NUGET_VERSION=$2
-  local NUGET_URL="https://dist.nuget.org/win-x86-commandline/v${NUGET_VERSION}/nuget.exe"
-  echo "Installing nuget $NUGET_VERSION for Mono $MONO_VERSION"
-  cd ${MONO_VERSIONS_PATH}/${MONO_VERSION}/lib/mono/nuget
-  sudo mv nuget.exe nuget_old.exe
-
-  pushd $TMPMOUNT
-  download_with_retries $NUGET_URL "." "nuget.exe"
-  sudo chmod a+x nuget.exe
-  sudo mv nuget.exe ${MONO_VERSIONS_PATH}/${MONO_VERSION}/lib/mono/nuget
-  popd
 }
 
 createUWPShim() {