Add Linux app package readiness

scripts/automation/package-smoke.ps1

@@ -11,6 +11,7 @@ param(
         "android-quest-apk",
         "android-focus-apk",
         "apple-bundle",
+        "linux-app",
         "webgl"
     )
 )
@@ -283,16 +284,38 @@ function Get-PackageReadiness {
                         (New-ArtifactCheck -Name "apple-package-output" -Path $bundleDir -PathType "Container")
                     )
             }
+            "linux-app" {
+                $linuxCmake = Join-Path $root "linux/CMakeLists.txt"
+                $linuxBinary = Join-Path $root "out/package/linux/panopainter"
+                $readiness += New-PackageReadiness `
+                    -Kind $kind `
+                    -Status "blocked" `
+                    -Reason "retained-linux-cmake-not-consuming-root-cmake-targets" `
+                    -ValidationCommand "cmake -S linux -B out/package/linux-retained && cmake --build out/package/linux-retained --target panopainter" `
+                    -Prerequisites @(
+                        (New-Prerequisite -Name "retained-linux-cmake" -Available (Test-Path -LiteralPath $linuxCmake -PathType Leaf) -Detail $linuxCmake),
+                        (New-Prerequisite -Name "cmake" -Available (Test-CommandAvailable "cmake") -Detail "Linux retained app CMake configure/build tool"),
+                        (New-Prerequisite -Name "retained-platform-cmake-baseline" -Available $true -Detail "python scripts/dev/check_retained_platform_cmake.py"),
+                        (New-Prerequisite -Name "root-cmake-preset" -Available $true -Detail "linux-clang"),
+                        (New-Prerequisite -Name "root-cmake-package-target" -Available $false -Detail "Not migrated yet")
+                    ) `
+                    -Artifacts @(
+                        (New-ArtifactCheck -Name "linux-app-output" -Path $linuxBinary -PathType "Leaf")
+                    )
+            }
             "webgl" {
+                $webglCmake = Join-Path $root "webgl/CMakeLists.txt"
                 $webDir = Join-Path $root "out/package/webgl"
                 $readiness += New-PackageReadiness `
                     -Kind $kind `
                     -Status "blocked" `
-                    -Reason "emscripten-preset-exists-but-webgl-package-target-missing" `
-                    -ValidationCommand "cmake --build --preset emscripten --target PanoPainter" `
+                    -Reason "retained-webgl-cmake-not-consuming-root-cmake-targets" `
+                    -ValidationCommand "emcmake cmake -S webgl -B out/package/webgl-retained && cmake --build out/package/webgl-retained --target panopainter" `
                     -Prerequisites @(
+                        (New-Prerequisite -Name "retained-webgl-cmake" -Available (Test-Path -LiteralPath $webglCmake -PathType Leaf) -Detail $webglCmake),
                         (New-Prerequisite -Name "emcc" -Available (Test-CommandAvailable "emcc") -Detail "Emscripten compiler"),
                         (New-Prerequisite -Name "emcmake" -Available (Test-CommandAvailable "emcmake") -Detail "Emscripten CMake wrapper"),
+                        (New-Prerequisite -Name "retained-platform-cmake-baseline" -Available $true -Detail "python scripts/dev/check_retained_platform_cmake.py"),
                         (New-Prerequisite -Name "root-cmake-preset" -Available $true -Detail "emscripten"),
                         (New-Prerequisite -Name "root-cmake-package-target" -Available $false -Detail "Not migrated yet")
                     ) `