feat: expand secure runtime and workspace UX

src/main/portable-user-data.ts

@@ -0,0 +1,34 @@
+import { readFileSync, statSync } from 'node:fs'
+import { dirname, join, resolve } from 'node:path'
+
+const portableMarkerName = '.goodbuddy-portable.json'
+
+export function resolvePortableUserDataPath(input: {
+  packaged: boolean
+  platform: NodeJS.Platform
+  executablePath: string
+}): string | undefined {
+  if (!input.packaged || input.platform !== 'win32') {
+    return undefined
+  }
+  const executableDirectory = dirname(resolve(input.executablePath))
+  const markerPath = join(executableDirectory, portableMarkerName)
+  try {
+    const markerFile = statSync(markerPath)
+    if (!markerFile.isFile() || markerFile.size > 4_096) {
+      return undefined
+    }
+    const marker = JSON.parse(
+      readFileSync(markerPath, 'utf8')
+    ) as Record<string, unknown>
+    if (
+      marker.formatVersion !== 1 ||
+      marker.productName !== 'GoodBuddy'
+    ) {
+      return undefined
+    }
+    return join(executableDirectory, 'data')
+  } catch {
+    return undefined
+  }
+}