From b339e062afd699f6470226cafdb0556843dae2cf Mon Sep 17 00:00:00 2001
From: Magnus Dahlstrand <magnus@mdahlstrand.com>
Date: Wed, 31 Jan 2024 17:15:17 +0000
Subject: [PATCH] !fixup: [wrangler] fix: stop rebuild attempts when sources
 are missing (#3886)

---
 .../pages-workerjs-app/tests/index.test.ts    | 39 +++++++++++++++++++
 .../workerjs-test/_routes.json                |  8 ++++
 2 files changed, 47 insertions(+)
 create mode 100644 fixtures/pages-workerjs-app/workerjs-test/_routes.json

diff --git a/fixtures/pages-workerjs-app/tests/index.test.ts b/fixtures/pages-workerjs-app/tests/index.test.ts
index f68baee29f38..34398e2b43be 100644
--- a/fixtures/pages-workerjs-app/tests/index.test.ts
+++ b/fixtures/pages-workerjs-app/tests/index.test.ts
@@ -100,6 +100,45 @@ describe("Pages _worker.js", () => {
 		}
 	});
 
+	it("should not error if the _routes.json file is removed while watching", async ({
+		expect,
+	}) => {
+		const basePath = resolve(__dirname, "..");
+		const { ip, port, getOutput, clearOutput, stop } =
+			await runWranglerPagesDev(resolve(__dirname, ".."), "./workerjs-test", [
+				"--port=0",
+				"--inspector-port=0",
+			]);
+		try {
+			clearOutput();
+			await tryRename(
+				basePath,
+				"workerjs-test/_routes.json",
+				"workerjs-test/XXX_routes.json"
+			);
+			await setTimeout(1000);
+			// Expect no output since the deletion of the routes file should be ignored
+			expect(getOutput()).toBe("");
+			await tryRename(
+				basePath,
+				"workerjs-test/XXX_routes.json",
+				"workerjs-test/_routes.json"
+			);
+			await setTimeout(1000);
+			// Expect replacing the routes file to trigger a build, although
+			// the routes build does not provide any output feedback to compare against,
+			// so we just check that nothing else is being printed.
+			expect(getOutput()).toBe("");
+		} finally {
+			await stop();
+			await tryRename(
+				basePath,
+				"workerjs-test/XXX_routes.json",
+				"workerjs-test/_routes.json"
+			);
+		}
+	});
+
 	async function tryRename(
 		basePath: string,
 		from: string,
diff --git a/fixtures/pages-workerjs-app/workerjs-test/_routes.json b/fixtures/pages-workerjs-app/workerjs-test/_routes.json
new file mode 100644
index 000000000000..ecf7343859e6
--- /dev/null
+++ b/fixtures/pages-workerjs-app/workerjs-test/_routes.json
@@ -0,0 +1,8 @@
+{
+	"version": 1,
+	"description": "",
+	"include": [
+		"/*"
+	],
+	"exclude": []
+}
\ No newline at end of file