From 18d9fe5d991f47618e35bf6e77e5c2797d13ccdf Mon Sep 17 00:00:00 2001
From: Pooya Parsa <pooya@pi0.io>
Date: Fri, 5 May 2023 18:38:22 +0200
Subject: [PATCH] feat: `future.nativeSWR`

---
 docs/content/3.config.md | 10 ++++++++++
 src/options.ts           |  1 +
 src/presets/netlify.ts   |  8 ++++++--
 src/presets/vercel.ts    |  8 ++++++--
 src/types/nitro.ts       |  3 +++
 5 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/docs/content/3.config.md b/docs/content/3.config.md
index 402883708e..e5fc99e4c2 100644
--- a/docs/content/3.config.md
+++ b/docs/content/3.config.md
@@ -58,6 +58,16 @@ Server runtime configuration.
 
 Enable experimental features. Currently, none are available!
 
+### `future`
+
+- Default: `{}`
+
+New features pending for a major version to avoid breaking changes.
+
+#### `nativeSWR`
+
+Uses built-in SWR functionality (using caching layer and storage) for Netlify and Vercel presets instead of falling back to ISR behavior.
+
 ### `storage`
 
 - Default: `{}`
diff --git a/src/options.ts b/src/options.ts
index 7278206977..46cf157e62 100644
--- a/src/options.ts
+++ b/src/options.ts
@@ -43,6 +43,7 @@ const NitroDefaults: NitroConfig = {
 
   // Features
   experimental: {},
+  future: {},
   storage: {},
   devStorage: {},
   bundledStorage: [],
diff --git a/src/presets/netlify.ts b/src/presets/netlify.ts
index 3d7ba35a94..75b9b84add 100644
--- a/src/presets/netlify.ts
+++ b/src/presets/netlify.ts
@@ -17,7 +17,11 @@ export const netlify = defineNitroPreset({
     },
   },
   hooks: {
-    "rollup:before": (nitro: Nitro) => deprecateSWR(nitro),
+    "rollup:before": (nitro: Nitro) => {
+      if (!nitro.options.future.nativeSWR) {
+        deprecateSWR(nitro);
+      }
+    },
     async compiled(nitro: Nitro) {
       await writeHeaders(nitro);
       await writeRedirects(nitro);
@@ -210,7 +214,7 @@ function deprecateSWR(nitro: Nitro) {
   }
   if (hasLegacyOptions) {
     console.warn(
-      "[nitro] Nitro now uses `isr` option to configure ISR behavior on Netlify. Backwards-compatible support for `static` and `swr` support with Builder Functions will be removed in the next major release."
+      "[nitro] Nitro now uses `isr` option to configure ISR behavior on Netlify. Backwards-compatible support for `static` and `swr` support with Builder Functions will be removed in the future versions."
     );
   }
 }
diff --git a/src/presets/vercel.ts b/src/presets/vercel.ts
index 1ff5e23de4..e40d1137f3 100644
--- a/src/presets/vercel.ts
+++ b/src/presets/vercel.ts
@@ -22,7 +22,11 @@ export const vercel = defineNitroPreset({
     preview: "",
   },
   hooks: {
-    "rollup:before": (nitro: Nitro) => deprecateSWR(nitro),
+    "rollup:before": (nitro: Nitro) => {
+      if (!nitro.options.future.nativeSWR) {
+        deprecateSWR(nitro);
+      }
+    },
     async compiled(nitro: Nitro) {
       const buildConfigPath = resolve(nitro.options.output.dir, "config.json");
       const buildConfig = generateBuildConfig(nitro);
@@ -270,7 +274,7 @@ function deprecateSWR(nitro: Nitro) {
   }
   if (hasLegacyOptions) {
     console.warn(
-      "[nitro] Nitro now uses `isr` option to configure ISR behavior on Vercel. Backwards-compatible support for `static` and `swr` options within the Vercel Build Options API will be removed in the next major release."
+      "[nitro] Nitro now uses `isr` option to configure ISR behavior on Vercel. Backwards-compatible support for `static` and `swr` options within the Vercel Build Options API will be removed in the future versions."
     );
   }
 }
diff --git a/src/types/nitro.ts b/src/types/nitro.ts
index 5b70b947eb..f0efa947e3 100644
--- a/src/types/nitro.ts
+++ b/src/types/nitro.ts
@@ -203,6 +203,9 @@ export interface NitroOptions extends PresetOptions {
     wasm?: boolean | RollupWasmOptions;
     legacyExternals?: boolean;
   };
+  future: {
+    nativeSWR: boolean;
+  };
   serverAssets: ServerAssetDir[];
   publicAssets: PublicAssetDir[];