configure.ps1: Fix path handling and improve reliability

- Use $PSScriptRoot for reliable source directory detection
- Use Join-Path for proper path construction
- Validate BUILD_TYPE against Debug/Release
- Fix CMake argument quoting
- Use Write-Error for error messages

configure.ps1

@@ -4,48 +4,41 @@
 # DESCRIPTION: Project configuration script for preparing the build environment
 # DEVELOPERS:  Aiken Harris <harraiken91@gmail.com>
 
-
 # Check XTchain
 if (-not $env:XTCVER) {
-    Write-Host "XTChain not detected or corrupted!"
+    Write-Error "XTChain not detected or corrupted!"
     exit 1
 }
 
-# Set target architecture
-if ($env:TARGET) {
-    $ARCH = $env:TARGET
-} else {
-    $ARCH = "amd64"
-}
+# Set target architecture defaulting to amd64
+$ARCH = if ($env:TARGET) { $env:TARGET } else { "amd64" }
 
-# Set target build type
-if (-not $env:BUILD_TYPE) {
-    $env:BUILD_TYPE = "DEBUG"
-}
+# Set target build type defaulting to Debug
+$env:BUILD_TYPE = if ($env:BUILD_TYPE -in @("Debug", "Release")) { $env:BUILD_TYPE } else { "Debug" }
 
 # Set variables
-$EXECTOS_SOURCE_DIR = (Get-Location).Path
-$EXECTOS_BINARY_DIR = "build-$($ARCH)-$($env:BUILD_TYPE.ToLower())"
+$EXECTOS_SOURCE_DIR = $PSScriptRoot
+$EXECTOS_BINARY_DIR = Join-Path $EXECTOS_SOURCE_DIR "build-$ARCH-$($env:BUILD_TYPE.ToLower())"
 
-# Create directories if needed
-if ($EXECTOS_SOURCE_DIR -eq (Get-Location).Path) {
-    Write-Host "Creating directories in $EXECTOS_BINARY_DIR"
+# Create build directory
+if (-not (Test-Path $EXECTOS_BINARY_DIR)) {
+    Write-Host "Creating build directory: $EXECTOS_BINARY_DIR"
     New-Item -ItemType Directory -Path $EXECTOS_BINARY_DIR -Force | Out-Null
-    Set-Location -Path $EXECTOS_BINARY_DIR
 }
 
+Set-Location $EXECTOS_BINARY_DIR
+
 # Delete old cache
-Remove-Item -Path "CMakeCache.txt" -ErrorAction SilentlyContinue
-Remove-Item -Path "host-tools/CMakeCache.txt" -ErrorAction SilentlyContinue
+Remove-Item "CMakeCache.txt", "host-tools/CMakeCache.txt" -ErrorAction SilentlyContinue
 
 # Configure project using CMake
-& cmake -G Ninja -DARCH:STRING=$($ARCH) -DBUILD_TYPE:STRING=$($env:BUILD_TYPE) $EXECTOS_SOURCE_DIR
+& cmake -G Ninja "-DARCH:STRING=$ARCH" "-DBUILD_TYPE:STRING=$($env:BUILD_TYPE)" $EXECTOS_SOURCE_DIR
 
 # Check if configuration succeeded
 if ($LASTEXITCODE -ne 0) {
-    Write-Host "Configure script failed."
+    Write-Error "Configure script failed."
     exit 1
-} else {
-    "$($ARCH)" | Out-File -Encoding ASCII -NoNewline build.arch
-    Write-Host "Configure script completed. Enter '$EXECTOS_BINARY_DIR' directory and execute 'xbuild' to build ExectOS."
 }
+
+$ARCH | Out-File -Encoding ASCII -NoNewline "build.arch"
+Write-Host "Configure completed. Run 'xbuild' to build ExectOS."