Add a PROCESSING_BUILD_BACKLOG flag and update the "missing compat info" message

Sources/App/Core/AppEnvironment.swift

@@ -64,6 +64,7 @@ struct AppEnvironment: Sendable {
     var metricsPushGatewayUrl: @Sendable () -> String?
     var plausibleBackendReportingSiteID: @Sendable () -> String?
     var postPlausibleEvent: @Sendable (Client, Plausible.Event.Kind, Plausible.Path, User?) async throws -> Void
+    var processingBuildBacklog: @Sendable () -> Bool
     var random: @Sendable (_ range: ClosedRange<Double>) -> Double
     var runnerIds: @Sendable () -> [String]
     var setHTTPClient: @Sendable (Client) -> Void
@@ -201,6 +202,9 @@ extension AppEnvironment {
         metricsPushGatewayUrl: { Environment.get("METRICS_PUSHGATEWAY_URL") },
         plausibleBackendReportingSiteID: { Environment.get("PLAUSIBLE_BACKEND_REPORTING_SITE_ID") },
         postPlausibleEvent: { client, kind, path, user in try await Plausible.postEvent(client: client, kind: kind, path: path, user: user) },
+        processingBuildBacklog: {
+            Environment.get("PROCESSING_BUILD_BACKLOG").flatMap(\.asBool) ?? false
+        },
         random: { range in Double.random(in: range) },
         runnerIds: {
             Environment.get("RUNNER_IDS")

Sources/App/Views/PackageController/GetRoute.Model+ext.swift

@@ -546,6 +546,14 @@ extension API.PackageController.GetRoute.Model {
 
     var hasBuildInfo: Bool { swiftVersionBuildInfo != nil || platformBuildInfo != nil }
 
+    func compatibilityInformation() -> Node<HTML.BodyContext> {
+        .div(
+            .class("matrices"),
+            swiftVersionCompatibilityList(),
+            platformCompatibilityList()
+        )
+    }
+
     func swiftVersionCompatibilityList() -> Node<HTML.BodyContext> {
         guard let buildInfo = swiftVersionBuildInfo else { return .empty }
         let rows = Self.groupBuildInfo(buildInfo)
@@ -591,6 +599,35 @@ extension API.PackageController.GetRoute.Model {
             )
         )
     }
+
+    func noCompatibilityInformationExplainer() -> Node<HTML.BodyContext> {
+        .if(Current.processingBuildBacklog(),
+            .group(
+                .p(
+                    .text("This package currently has no compatibility information. "),
+                    .strong("We are currently processing a large build job backlog and it may take much longer than usual for compatibility information to appear.")
+                ),
+                .p(
+                    .text("You can see what builds the system is currently processing by checking the "),
+                    .a(
+                        .href(SiteURL.buildMonitor.relativeURL()),
+                        .text("build system monitoring page")
+                    ),
+                    .text(".")
+                )
+            ),
+            else: .group(
+                .p("This package currently has no compatibility information. The build jobs that determine compatibility have been queued and compatibility information will appear when they complete."),
+                .p(
+                    .text("If this message persists for more than an hour, please "),
+                    .a(
+                        .href(ExternalURL.raiseNewIssue),
+                        .text("raise an issue")
+                    ),
+                    .text(".")
+                )
+            ))
+    }
 }
 
 

Sources/App/Views/PackageController/PackageShow+View.swift

@@ -221,25 +221,8 @@ extension PackageShow {
                         .text("Full Build Results")
                     )
                 ),
-                .div(
-                    .class("matrices"),
-                    .if(model.hasBuildInfo,
-                        .group(
-                            model.swiftVersionCompatibilityList(),
-                            model.platformCompatibilityList()
-                        ),
-                        else: .group(
-                            .p(
-                                "This package currently has no compatibility information. Builds to determine package compatibility are starting, and compatibility information will appear soon. If this message persists for more than a few minutes, please ",
-                                .a(
-                                    .href(ExternalURL.raiseNewIssue),
-                                    "raise an issue"
-                                ),
-                                "."
-                            )
-                        )
-                    )
-                )
+                .if(model.hasBuildInfo, model.compatibilityInformation(),
+                    else: model.noCompatibilityInformationExplainer())
             )
         }
 

Tests/AppTests/Mocks/AppEnvironment+mock.swift

@@ -63,6 +63,7 @@ extension AppEnvironment {
             metricsPushGatewayUrl: { "http://pushgateway:9091" },
             plausibleBackendReportingSiteID: { nil },
             postPlausibleEvent: { _, _, _, _ in },
+            processingBuildBacklog: { false },
             random: { range in Double.random(in: range) },
             runnerIds: { [] },
             setHTTPClient: { client in Self.httpClient = client },

Tests/AppTests/__Snapshots__/WebpageSnapshotTests/test_PackageShowView_no_builds.1.html

@@ -176,11 +176,10 @@ <h4>When working with a Swift Package Manager manifest:</h4>
                 <h3>Compatibility</h3>
                 <a href="/Alamo/Alamofire/builds">Full Build Results</a>
               </div>
-              <div class="matrices">
-                <p>This package currently has no compatibility information. Builds to determine package compatibility are starting, and compatibility information will appear soon. If this message persists for more than a few minutes, please 
-                  <a href="https://github.com/SwiftPackageIndex/SwiftPackageIndex-Server/issues/new/choose">raise an issue</a>.
-                </p>
-              </div>
+              <p>This package currently has no compatibility information. The build jobs that determine compatibility have been queued and compatibility information will appear when they complete.</p>
+              <p>If this message persists for more than an hour, please 
+                <a href="https://github.com/SwiftPackageIndex/SwiftPackageIndex-Server/issues/new/choose">raise an issue</a>.
+              </p>
             </section>
           </section>
           <section>

app.yml

@@ -56,6 +56,7 @@ x-shared: &shared
     MASTODON_ACCESS_TOKEN: ${MASTODON_ACCESS_TOKEN}
     METRICS_PUSHGATEWAY_URL: ${METRICS_PUSHGATEWAY_URL}
     PLAUSIBLE_BACKEND_REPORTING_SITE_ID: ${PLAUSIBLE_BACKEND_REPORTING_SITE_ID}
+    PROCESSING_BUILD_BACKLOG: ${PROCESSING_BUILD_BACKLOG}
     RUNNER_IDS: ${RUNNER_IDS}
     SITE_URL: ${SITE_URL}
     SWIFT_BACKTRACE: ${SWIFT_BACKTRACE}