fix: windows build (#368)

dist/index.js

@@ -48,7 +48,7 @@ function runMain() {
         try {
             model_1.Action.checkCompatibility();
             model_1.Cache.verify();
-            const { dockerfile, workspace, actionFolder } = model_1.Action;
+            const { workspace, actionFolder } = model_1.Action;
             const buildParameters = yield model_1.BuildParameters.create();
             const baseImage = new model_1.ImageTag(buildParameters);
             if (buildParameters.cloudRunnerCluster &&
@@ -117,19 +117,6 @@ class Action {
     static get actionFolder() {
         return `${Action.rootFolder}/dist`;
     }
-    static get dockerfile() {
-        const currentPlatform = process.platform;
-        switch (currentPlatform) {
-            case 'linux':
-                return `${Action.actionFolder}/platforms/ubuntu/Dockerfile`;
-            case 'win32':
-                return `${Action.actionFolder}/platforms/windows/Dockerfile`;
-            case 'darwin':
-                return 'unused'; //Mac doesn't use a container
-            default:
-                throw new Error(`No Dockerfile for currently unsupported platform: ${currentPlatform}`);
-        }
-    }
     static get workspace() {
         return process.env.GITHUB_WORKSPACE;
     }
@@ -3342,11 +3329,10 @@ class Docker {
             --volume "C:/Program Files (x86)/Windows Kits":"C:/Program Files (x86)/Windows Kits" \
             --volume "C:/ProgramData/Microsoft/VisualStudio":"C:/ProgramData/Microsoft/VisualStudio" \
             --volume "${actionFolder}/default-build-script":"c:/UnityBuilderAction" \
-            --volume "${actionFolder}/platforms/ubuntu/steps":"c:/steps" \
-            --volume "${actionFolder}/platforms/windows/entrypoint.ps1":"c:/entrypoint.ps1" \
+            --volume "${actionFolder}/platforms/windows":"c:/steps" \
             --volume "${actionFolder}/BlankProject":"c:/BlankProject" \
             ${image} \
-            powershell c:/entrypoint.ps1`;
+            powershell c:/steps/entrypoint.ps1`;
     }
 }
 exports["default"] = Docker;