Update regex to overwrite existing debugId

Author: timfish

src/common.ts

@@ -28,7 +28,10 @@ export function stringToUUID(str: string): string {
 }
 
 export function addDebugIdToSource(input: string, debugId: string): string {
-  return input.replace(/(\n*)?(\/\/# .+\n*)?$/, `\n//# debugId=${debugId}\n$2`);
+  return input.replace(
+    /\s*(?:\/\/# debugId=.+)?\s*(\/\/# .+)?\s*$/,
+    `\n//# debugId=${debugId}\n$1`
+  );
 }
 
 export function addDebugIdToSourcemap(input: string, debugId: string): string {

test/common/common.test.ts

@@ -12,6 +12,20 @@ describe("common", () => {
       `);
     });
 
+    test("adds debugId to source with existing debugId", () => {
+      expect(
+        addDebugIdToSource(
+          `console.log('nothing')
+//# debugId=302a139c-0c62-4af7-bfd3-03d083925e5e`,
+          "000-000-000-000"
+        )
+      ).toMatchInlineSnapshot(`
+        "console.log('nothing')
+        //# debugId=000-000-000-000
+        "
+      `);
+    });
+
     test("adds debugId to source with sourceMapURL", () => {
       expect(
         addDebugIdToSource(
@@ -26,4 +40,19 @@ describe("common", () => {
       `);
     });
   });
+
+  test("adds debugId to source with sourceMapURL and existing debugId", () => {
+    expect(
+      addDebugIdToSource(
+        `console.log('nothing');
+//# debugId=302a139c-0c62-4af7-bfd3-03d083925e5e
+//# sourceMappingURL=main.js.map`,
+        "000-000-000-000"
+      )
+    ).toMatchInlineSnapshot(`
+      "console.log('nothing');
+      //# debugId=000-000-000-000
+      //# sourceMappingURL=main.js.map"
+    `);
+  });
 });