Initial Commit

packages/devtools/tooling/installer/src/fs/installer-fs.ts

@@ -0,0 +1,15 @@
+import type { InstallerFs } from "../types/installer.types.js";
+
+/**
+ * Mutating extension to {@link InstallerFs} used internally by the host's
+ * apply stage. Plugins only see the read-only `InstallerFs`.
+ */
+export interface MutableInstallerFs extends InstallerFs {
+    writeFile(path: string, contents: Uint8Array, mode?: number): Promise<void>;
+    deleteFile(path: string): Promise<void>;
+    mkdir(path: string): Promise<void>;
+    rename(from: string, to: string): Promise<void>;
+    writeJson(path: string, value: unknown): Promise<void>;
+}
+
+export type { InstallerFs } from "../types/installer.types.js";