[MacOS] improve errexit option handling (#8432)

* [MacOS] improve errexit option handling

* Prevent prompting for override when unzipping

* Explicitly allow failing when installing virtualbox

* Remove libtcl symlinks

* Add debug output

images/macos/provision/core/android-toolsets.sh

@@ -126,7 +126,7 @@ sdkTools="android-sdk-tools.zip"
 sdkToolsVersion=$(get_toolset_value '.android."sdk-tools"')
 if [ "$sdkToolsVersion" != "null" ]; then
     download_with_retries "https://dl.google.com/android/repository/${sdkToolsVersion}" "." $sdkTools
-    unzip -qq $sdkTools -d ${ANDROID_SDK_ROOT}
+    unzip -o -qq $sdkTools -d ${ANDROID_SDK_ROOT}
     rm -f $sdkTools
 fi
 

images/macos/provision/core/commonutils.sh

@@ -36,6 +36,7 @@ fi
 # System Preferences -> Security & Privacy -> General -> Unlock -> Allow -> Not now
 if is_Monterey; then
     if is_Veertu; then
+        echo "Executing AppleScript to change security preferences (with retries)"
         retry=5
         while [ $retry -gt 0 ]; do
             {
@@ -48,6 +49,7 @@ if is_Monterey; then
             sleep 10
         done
     else
+        echo "Executing AppleScript to change security preferences"
         osascript $HOME/utils/confirm-identified-developers.scpt $USER_PASSWORD
     fi
 fi
@@ -82,13 +84,5 @@ bazel
 # Install Azure DevOps extension for Azure Command Line Interface
 az extension add -n azure-devops
 
-# Workaround https://github.com/actions/runner-images/issues/4931
-# by making Tcl/Tk paths the same on macOS 10.15 and macOS 11
-if is_Monterey; then
-    version=$(brew info tcl-tk --json | jq -r '.[].installed[].version')
-    ln -s /usr/local/Cellar/tcl-tk/$version/lib/libtcl8.6.dylib /usr/local/lib/libtcl8.6.dylib
-    ln -s /usr/local/Cellar/tcl-tk/$version/lib/libtk8.6.dylib /usr/local/lib/libtk8.6.dylib
-fi
-
 # Invoke tests for all basic tools
 invoke_tests "BasicTools"

images/macos/provision/core/pypy.sh

@@ -11,7 +11,7 @@ function InstallPyPy
     PACKAGE_URL=$1
 
     PACKAGE_TAR_NAME=$(echo $PACKAGE_URL | awk -F/ '{print $NF}')
-    echo "Downloading tar archive '$PACKAGE_TAR_NAME' - '$PACKAGE_URL'"
+    echo "Downloading tar archive '$PACKAGE_TAR_NAME'"
     PACKAGE_TAR_TEMP_PATH="/tmp/$PACKAGE_TAR_NAME"
     download_with_retries $PACKAGE_URL "/tmp" "$PACKAGE_TAR_NAME"
 

images/macos/provision/utils/utils.sh

@@ -15,15 +15,24 @@ download_with_retries() {
         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
+    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 [ $retries -gt 0 ]; do
         ((retries--))
-        # Temporary disable exit on error to retry on non-zero exit code
+        test "$ERR_EXIT_ENABLED" = true && set +e
-        set +e
         http_code=$(eval $COMMAND)
         exit_code=$?
+        test "$ERR_EXIT_ENABLED" = true && set -e
         if [ $http_code -eq 200 ] && [ $exit_code -eq 0 ]; then
             echo "Download completed"
             return 0
@@ -31,8 +40,6 @@ download_with_retries() {
             echo "Error — Either HTTP response code for '$URL' is wrong - '$http_code' or exit code is not 0 - '$exit_code'. Waiting $interval seconds before the next attempt, $retries attempts left"
             sleep 30
         fi
-        # Enable exit on error back
-        set -e
     done
 
     echo "Could not download $URL"

images/macos/tests/BasicTools.Tests.ps1

@@ -67,6 +67,13 @@ Describe "Helm" -Skip:($os.IsMonterey -or $os.IsVentura -or $os.IsVenturaArm64)
     }
 }
 
+Describe "Tcl/Tk" {
+    It "libtcl" {
+        "file /usr/local/lib/libtcl8.6.dylib" | Should -ReturnZeroExitCode
+        "file /usr/local/lib/libtk8.6.dylib" | Should -ReturnZeroExitCode
+    }
+}
+
 Describe "bazelisk" {
     It "bazelisk" {
         "bazelisk version" | Should -ReturnZeroExitCode