build: option -BuildDir de build.ps1 pour des builds en parallèle

scripts/build.ps1

@@ -19,6 +19,9 @@
 .PARAMETER NoTests
     Compile sans lancer les tests.
 
+.PARAMETER BuildDir
+    Dossier de build a utiliser a la place de build\<preset> (builds paralleles).
+
 .PARAMETER Help
     Affiche cette aide.
 
@@ -31,6 +34,7 @@ param(
     [string]$Preset = "windows-msvc-debug",
     [switch]$Clean,
     [switch]$NoTests,
+    [string]$BuildDir,
     [Alias("h", "?")]
     [switch]$Help
 )
@@ -70,14 +74,21 @@ function Invoke-Step([string]$label, [scriptblock]$cmd) {
 Initialize-VsEnvironment
 Push-Location $root
 try {
-    if ($Clean) {
-        $dir = Join-Path $root "build\$Preset"
-        if (Test-Path $dir) { Remove-Item -Recurse -Force $dir }
+    $dir = if ($BuildDir) { $BuildDir } else { Join-Path $root "build\$Preset" }
+    if ($Clean -and (Test-Path $dir)) { Remove-Item -Recurse -Force $dir }
+    if ($BuildDir) {
+        Invoke-Step "configure $Preset -> $dir" { cmake --preset $Preset -B $dir }
+        Invoke-Step "build $dir" { cmake --build $dir }
+        if (-not $NoTests) {
+            Invoke-Step "test $dir" { ctest --test-dir $dir --output-on-failure --no-tests=error }
+        }
     }
-    Invoke-Step "configure $Preset" { cmake --preset $Preset }
-    Invoke-Step "build $Preset" { cmake --build --preset $Preset }
-    if (-not $NoTests) {
-        Invoke-Step "test $Preset" { ctest --preset $Preset }
+    else {
+        Invoke-Step "configure $Preset" { cmake --preset $Preset }
+        Invoke-Step "build $Preset" { cmake --build --preset $Preset }
+        if (-not $NoTests) {
+            Invoke-Step "test $Preset" { ctest --preset $Preset }
+        }
     }
 }
 finally {