Apply fix for release notes index JSON

pkg/release/publish.go

@@ -402,13 +402,14 @@ func (p *Publisher) PublishToGcs(
 	return nil
 }
 
-func gcsPathToPublisURL(gcsPath string) (string, error) {
-	const pathSep = "/"
-	split := strings.Split(strings.TrimPrefix(gcsPath, object.GcsPrefix), pathSep)
-	if len(split) < 2 {
-		return "", fmt.Errorf("invalid GCS path: %s", gcsPath)
-	}
-	return URLPrefixForBucket(split[0]) + pathSep + strings.Join(split[1:], pathSep), nil
+// TODO: remove this function once https://cdn.dl.k8s.io/release/release-notes-index.json
+// is fixed.
+func FixPublicReleaseNotesURL(gcsPath string) string {
+	const prefix = "https://storage.googleapis.com/"
+	for strings.HasPrefix(gcsPath, prefix) {
+		gcsPath = strings.TrimPrefix(gcsPath, prefix)
+	}
+	return gcsPath
 }
 
 // PublishReleaseNotesIndex updates or creates the release notes index JSON at
@@ -467,11 +468,7 @@ func (p *Publisher) PublishReleaseNotesIndex(
 
 	// Fixup the index to only use public URLS
 	for v, releaseNotesPath := range versions {
-		releaseNotesPublicURL, err := gcsPathToPublisURL(releaseNotesPath)
-		if err != nil {
-			return fmt.Errorf("get publish URL from release notes GCS path: %w", err)
-		}
-		versions[v] = releaseNotesPublicURL
+		versions[v] = FixPublicReleaseNotesURL(releaseNotesPath)
 	}
 
 	versionJSON, err := p.client.Marshal(versions)

pkg/release/publish_test.go

@@ -372,3 +372,31 @@ func TestIsUpToDate(t *testing.T) {
 		})
 	}
 }
+
+func TestFixPublicReleaseNotesURL(t *testing.T) {
+	t.Parallel()
+
+	for name, tc := range map[string]struct {
+		input, expected string
+	}{
+		"should not affect correct URL": {
+			input:    "https://dl.k8s.io/release/v1.32.0-beta.0/release-notes.json",
+			expected: "https://dl.k8s.io/release/v1.32.0-beta.0/release-notes.json",
+		},
+		"should fix wrong URL with 1 prefix": {
+			input:    "https://storage.googleapis.com/https://dl.k8s.io/release/v1.32.0-alpha.3/release-notes.json",
+			expected: "https://dl.k8s.io/release/v1.32.0-alpha.3/release-notes.json",
+		},
+		"should fix wrong URL with multiple prefixes": {
+			input:    "https://storage.googleapis.com/https://storage.googleapis.com/https://dl.k8s.io/release/v1.28.1/release-notes.json",
+			expected: "https://dl.k8s.io/release/v1.28.1/release-notes.json",
+		},
+	} {
+		t.Run(name, func(t *testing.T) {
+			t.Parallel()
+
+			res := release.FixPublicReleaseNotesURL(tc.input)
+			require.Equal(t, tc.expected, res)
+		})
+	}
+}