From 874b4089f0dfbeea026b786a71c6abb057ccae66 Mon Sep 17 00:00:00 2001
From: secustor <sebastian@poxhofer.at>
Date: Mon, 9 Dec 2024 15:26:38 +0100
Subject: [PATCH] feat: add unsupported framework upgrades preset

---
 README.md                                   |  3 ++
 app.json5                                   |  1 +
 presets/unsupported-framework-upgrades.json | 38 +++++++++++++++++++++
 self-hosted.json5                           |  1 +
 4 files changed, 43 insertions(+)
 create mode 100644 presets/unsupported-framework-upgrades.json

diff --git a/README.md b/README.md
index d0a95e0..80d7749 100644
--- a/README.md
+++ b/README.md
@@ -46,6 +46,9 @@ This means that [`allowedPostUpgradeCommands`](https://docs.renovatebot.com/self
 
 ## Feature presets
 
+### Unsupported Framework Upgrades
+Prevent upgrades to frameworks that are not supported by Backstage.
+
 ### Group by plugin
 Groups all PRs based on the plugin. Therefore, all updates of the `catalog` are grouped together including `catalog`, `catalog-backend` and so on. 
 
diff --git a/app.json5 b/app.json5
index 24873cd..8fd6214 100644
--- a/app.json5
+++ b/app.json5
@@ -2,6 +2,7 @@
   $schema: "https://docs.renovatebot.com/renovate-schema.json",
   extends: [
     "github>secustor/backstage-renovate-config//presets/no-esm",
+    "github>secustor/backstage-renovate-config//presets/unsupported-framework-upgrades",
     "github>secustor/backstage-renovate-config//presets/update-backstage-json"
   ],
 
diff --git a/presets/unsupported-framework-upgrades.json b/presets/unsupported-framework-upgrades.json
new file mode 100644
index 0000000..d85a665
--- /dev/null
+++ b/presets/unsupported-framework-upgrades.json
@@ -0,0 +1,38 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "packageRules": [
+    {
+      "description": [
+        "Do not upgrade to React Router v7",
+        "https://github.com/backstage/backstage/issues/27927"
+      ],
+      "matchSourceUrls": [
+        "https://github.com/remix-run/react-router"
+      ],
+      "allowedVersions": "<7.0.0"
+    },
+    {
+      "description": [
+        "Do not upgrade to Express v5",
+        "https://github.com/backstage/backstage/issues/27808"
+      ],
+      "matchDatasources": [
+        "npm"
+      ],
+      "matchPackageNames": [
+        "express",
+        "@types/express",
+        "@types/express-serve-static-core"
+      ],
+      "allowedVersions": "<5.0.0"
+    },
+    {
+      "description": [
+        "Do not upgrade to React 19",
+        "https://github.com/backstage/backstage/issues/24554"
+      ],
+      "extends": ["packages:react"],
+      "allowedVersions": "<19.0.0"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/self-hosted.json5 b/self-hosted.json5
index 47af526..2baa570 100644
--- a/self-hosted.json5
+++ b/self-hosted.json5
@@ -2,6 +2,7 @@
   $schema: "https://docs.renovatebot.com/renovate-schema.json",
   extends: [
     "github>secustor/backstage-renovate-config//presets/no-esm",
+    "github>secustor/backstage-renovate-config//presets/unsupported-framework-upgrades",
     "github>secustor/backstage-renovate-config//presets/update-backstage-json"
   ],