Correctly detect changelog entries for prerelease versions

CHANGELOG.md

@@ -1,3 +1,4 @@
 - Fix URL with wrong host returned in storage resumable upload (#4374).
 - Fixes Firestore emulator transaction expiration and reused bug.
 - Fixes Firestore emulator deadlock bug. [#2452](https://github.com/firebase/firebase-tools/issues/2452)
+- Improves support for prerelease versions in `ext:dev:publish` (#4244).

src/extensions/changelog.ts

@@ -17,7 +17,9 @@ marked.setOptions({
 });
 
 const EXTENSIONS_CHANGELOG = "CHANGELOG.md";
-const VERSION_LINE_REGEX = /##.*(\d+\.\d+\.\d+).*/;
+// Simplifed version of https://semver.org/#is-there-a-suggested-regular-expression-regex-to-check-a-semver-string
+const VERSION_LINE_REGEX =
+  /##.*(\d+\.\d+\.\d+(?:-((\d+|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(\d+|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?).*/;
 
 /*
  * getReleaseNotesForUpdate fetches all version between toVersion and fromVersion and returns the relase notes

src/extensions/extensionsHelper.ts

@@ -446,7 +446,8 @@ export async function publishExtensionVersionFromLocalSource(args: {
         )
     );
   }
-  if (!notes && extension) {
+  // Skip this check for prerelease versions
+  if (!notes && !semver.prerelease(extensionSpec.version) && extension) {
     // If this is not the first version of this extension, we require release notes
     throw new FirebaseError(
       `No entry for version ${extensionSpec.version} found in CHANGELOG.md. ` +

src/test/extensions/changelog.spec.ts

@@ -141,6 +141,14 @@ describe("changelog", () => {
           "0.1.1": "New notes",
         },
       },
+      {
+        description: "should handle prerelease versions",
+        in: "Some random words\n## Version 0.1.0-rc.1\nNotes\n## Version 0.1.1-release-candidate.1.2\nNew notes",
+        want: {
+          "0.1.0-rc.1": "Notes",
+          "0.1.1-release-candidate.1.2": "New notes",
+        },
+      },
     ];
     for (const testCase of testCases) {
       it(testCase.description, () => {