fix regression (#3445)

CHANGELOG.md

@@ -1,6 +1,10 @@
 # What's New?
 
-## 1.16
+## 1.16.30
+Bug Fixes:
+- Fixed an issue where finding cl.exe and ninja from Visual Studio was broken. [PR #3445](https://github.com/microsoft/vscode-cmake-tools/pull/3445)
+
+## 1.16.29
 Features:
 - Support different debug config for different targets. [PR #2801](https://github.com/microsoft/vscode-cmake-tools/pull/2801) [@RichardLuo0](https://github.com/RichardLuo0)
 - Add ability to get a test's `WORKING_DIRECTORY` in launch.json via `cmake.testWorkingDirectory` [PR #3336](https://github.com/microsoft/vscode-cmake-tools/pull/3336)
@@ -23,7 +27,7 @@ Bug Fixes:
 - Paths containing `mingw` are no longer removed from the `PATH` environment variable because the selected MinGW kit is added before the `PATH` environment variable, rather than after. [#3220](https://github.com/microsoft/vscode-cmake-tools/issues/3220)
 - Fix a bug where `CMake: Show Configure` or `CMake: Show Build` commands would run them. [#3381](https://github.com/microsoft/vscode-cmake-tools/issues/3381) [@AbdullahAmrSobh](https://github.com/AbdullahAmrSobh)
 
-## 1.15
+## 1.15.31
 Features:
 - Added support for the CMake Debugger. [#3093](https://github.com/microsoft/vscode-cmake-tools/issues/3093)
 - Added support for passing a folder parameter to the `cmake.selectActiveFolder` command. [#3256](https://github.com/microsoft/vscode-cmake-tools/issues/3256) [@cvanbeek](https://github.com/cvanbeek13)

src/preset.ts

@@ -924,8 +924,6 @@ async function expandConfigurePresetHelper(folder: string, name: string, preset:
     const expansionOpts: ExpansionOptions = await getExpansionOptions(workspaceFolder, sourceDir, preset);
     expansionOpts.envOverride = inheritedEnv;
 
-    preset.environment = EnvironmentUtils.mergePreserveNull([inheritedEnv, preset.environment]);
-
     // [Windows Only] If CMAKE_CXX_COMPILER or CMAKE_C_COMPILER is set as cl, clang, clang-cl, clang-cpp and clang++,
     // but they are not on PATH, then set the env automatically.
     if (process.platform === 'win32') {
@@ -937,10 +935,10 @@ async function expandConfigurePresetHelper(folder: string, name: string, preset:
             const expandedPreset: ConfigurePreset = { name };
             const expansionOpts: ExpansionOptions = await getExpansionOptions(workspaceFolder, sourceDir, preset);
             if (compilerName) {
-                expandedPreset.environment = EnvironmentUtils.createPreserveNull();
-                for (const key in preset.environment) {
-                    if (preset.environment[key]) {
-                        expandedPreset.environment[key] = await expandString(preset.environment[key]!, expansionOpts);
+                expandedPreset.environment = EnvironmentUtils.mergePreserveNull([inheritedEnv, preset.environment]);
+                for (const key in expandedPreset.environment) {
+                    if (expandedPreset.environment[key]) {
+                        expandedPreset.environment[key] = await expandString(expandedPreset.environment[key]!, expansionOpts);
                     }
                 }
                 const compilerLocation = await execute('where.exe', [compilerName], null, {