feat: Add scanning for dead code with knip (#35072)

* Add knip as dev dependency.

* Add config and script for knip.

* Add additional ignores to the file list.

* Remove knip as a dependency, download and run it :).

knip.jsonc

@@ -0,0 +1,15 @@
+{
+  "$schema": "https://unpkg.com/knip@5/schema-jsonc.json",
+  "exclude": ["types", "exports"],
+  "ignore": [
+    "examples/**",
+    "**/*.mdx",
+    // skip supabase functions
+    "supabase/functions/**",
+    "**/*.test.ts",
+    // ignore studio public folder
+    "apps/studio/public/**",
+    // ignore studio components, they're dynamically imported
+    "apps/studio/components/interfaces/Connect/content/**",
+  ],
+}

package.json

@@ -33,7 +33,8 @@
     "perf:kong": "ab -t 5 -c 20 -T application/json http://localhost:8000/",
     "perf:meta": "ab -t 5 -c 20 -T application/json http://localhost:5555/tables",
     "generate:types": "supabase gen types typescript --local > ./supabase/functions/common/database-types.ts",
-    "api:codegen": "cd packages/api-types && pnpm run codegen"
+    "api:codegen": "cd packages/api-types && pnpm run codegen",
+    "knip": "pnpx knip@~5.50.0"
   },
   "devDependencies": {
     "@types/node": "catalog:",

pnpm-lock.yaml

@@ -8769,9 +8769,6 @@ packages:
   fastify@4.29.0:
     resolution: {integrity: sha512-MaaUHUGcCgC8fXQDsDtioaCcag1fmPJ9j64vAKunqZF4aSub040ZGi/ag8NGE2714yREPOKZuHCfpPzuUD3UQQ==}
 
-  fastq@1.15.0:
-    resolution: {integrity: sha512-wBrocU2LCXXa+lWBt8RoIRD89Fi8OdABODa/kEnyeyjS5aZO5/GNvI5sEINADqP/h8M29UHTHUb53sUu5Ihqdw==}
-
   fastq@1.18.0:
     resolution: {integrity: sha512-QKHXPW0hD8g4UET03SdOdunzSouc9N4AuHdsX8XNcTsuz+yYFILVNIX4l9yHABMhiEI9Db0JTTIpu0wB+Y1QQw==}
 
@@ -16437,7 +16434,7 @@ snapshots:
   '@nodelib/fs.walk@1.2.8':
     dependencies:
       '@nodelib/fs.scandir': 2.1.5
-      fastq: 1.15.0
+      fastq: 1.18.0
 
   '@npmcli/agent@2.2.2(supports-color@8.1.1)':
     dependencies:
@@ -22969,10 +22966,6 @@ snapshots:
       semver: 7.6.3
       toad-cache: 3.7.0
 
-  fastq@1.15.0:
-    dependencies:
-      reusify: 1.0.4
-
   fastq@1.18.0:
     dependencies:
       reusify: 1.0.4