feat(YouTube): add Change start page patch

src/main/kotlin/app/revanced/patches/youtube/general/startpage/ChangeStartPagePatch.kt

@@ -0,0 +1,78 @@
+package app.revanced.patches.youtube.general.startpage
+
+import app.revanced.patcher.data.BytecodeContext
+import app.revanced.patcher.extensions.InstructionExtensions.addInstruction
+import app.revanced.patcher.patch.BytecodePatch
+import app.revanced.patcher.patch.annotation.CompatiblePackage
+import app.revanced.patcher.patch.annotation.Patch
+import app.revanced.patches.youtube.general.startpage.fingerprints.StartActivityFingerprint
+import app.revanced.patches.youtube.utils.integrations.Constants.GENERAL
+import app.revanced.patches.youtube.utils.settings.SettingsPatch
+import app.revanced.patches.youtube.utils.settings.SettingsPatch.contexts
+import app.revanced.util.copyXmlNode
+import app.revanced.util.exception
+
+@Patch(
+    name = "Change start page",
+    description = "Changes the start page of the app.",
+    dependencies = [SettingsPatch::class],
+    compatiblePackages = [
+        CompatiblePackage(
+            "com.google.android.youtube",
+            [
+                "18.25.40",
+                "18.27.36",
+                "18.29.38",
+                "18.30.37",
+                "18.31.40",
+                "18.32.39",
+                "18.33.40",
+                "18.34.38",
+                "18.35.36",
+                "18.36.39",
+                "18.37.36",
+                "18.38.44",
+                "18.39.41",
+                "18.40.34",
+                "18.41.39",
+                "18.42.41",
+                "18.43.45",
+                "18.44.41",
+                "18.45.43"
+            ]
+        )
+    ]
+)
+@Suppress("unused")
+object ChangeStartPagePatch : BytecodePatch(
+    setOf(StartActivityFingerprint)
+) {
+    override fun execute(context: BytecodeContext) {
+        StartActivityFingerprint.result?.let {
+            it.mutableMethod.apply {
+                addInstruction(
+                    0,
+                    "invoke-static { p1 }, $GENERAL->changeStartPage(Landroid/content/Intent;)V"
+                )
+            }
+        } ?: throw StartActivityFingerprint.exception
+
+        /**
+         * Copy arrays
+         */
+        contexts.copyXmlNode("youtube/startpage/host", "values/arrays.xml", "resources")
+
+        /**
+         * Add settings
+         */
+        SettingsPatch.addPreference(
+            arrayOf(
+                "PREFERENCE: GENERAL_SETTINGS",
+                "SETTINGS: CHANGE_START_PAGE"
+            )
+        )
+
+        SettingsPatch.updatePatchStatus("Change start page")
+
+    }
+}

src/main/kotlin/app/revanced/patches/youtube/general/startpage/fingerprints/StartActivityFingerprint.kt

@@ -0,0 +1,11 @@
+package app.revanced.patches.youtube.general.startpage.fingerprints
+
+import app.revanced.patcher.fingerprint.MethodFingerprint
+
+object StartActivityFingerprint : MethodFingerprint(
+    parameters = listOf("Landroid/content/Intent;"),
+    customFingerprint = { methodDef, classDef ->
+        methodDef.name == "startActivity"
+                && classDef.type.endsWith("/Shell_HomeActivity;")
+    }
+)