syz-cluster: show series versions in the dashboard

Display a list of other versions of the same series on the series details page.
Fetch all series sharing the same title and render them in a new "Series Versions" table, allowing navigation between
different versions of a patch series.

Author: pimyn-girgis

syz-cluster/dashboard/handler.go

@@ -172,6 +172,7 @@ func (h *dashboardHandler) seriesInfo(w http.ResponseWriter, r *http.Request) er
 		*db.Series
 		Patches      []*db.Patch
 		Sessions     []SessionData
+		Versions     []*db.Series
 		TotalPatches int
 	}
 	var data SeriesData
@@ -188,6 +189,11 @@ func (h *dashboardHandler) seriesInfo(w http.ResponseWriter, r *http.Request) er
 		return fmt.Errorf("failed to query patches: %w", err)
 	}
 	data.TotalPatches = len(data.Patches)
+	// Note: There may be some false positives, but there's no straightforward way to filter them out.
+	data.Versions, err = h.seriesRepo.ListAllVersions(ctx, data.Series.Title)
+	if err != nil {
+		return fmt.Errorf("failed to query all series versions: %w", err)
+	}
 	sessions, err := h.sessionRepo.ListForSeries(ctx, data.Series)
 	if err != nil {
 		return fmt.Errorf("failed to query sessions: %w", err)

syz-cluster/dashboard/templates/series.html

@@ -53,7 +53,16 @@ <h2>Patch Series</h2>
                 </tr>
                 <tr>
                     <th>Version</th>
-                    <td>{{.Version}}</td>
+                    <td>
+                        <select class="form-select" onchange="window.location.href=this.value;">
+                            {{$currentSeriesVersion := .Version}}
+                            {{range .Versions}}
+                                <option value="/series/{{.ID}}" {{if eq .Version $currentSeriesVersion}}selected{{end}}>
+                                    Version {{.Version}}
+                                </option>
+                            {{end}}
+                        </select>
+                    </td>
                 </tr>
                 <tr>
                     <th>Cc</th>

syz-cluster/pkg/db/series_repo.go

@@ -226,6 +226,17 @@ WHERE SEARCH(Patches.TitleTokens, @name)
 	return ret, nil
 }
 
+func (repo *SeriesRepository) ListAllVersions(ctx context.Context, title string) ([]*Series, error) {
+	ro := repo.client.ReadOnlyTransaction()
+	defer ro.Close()
+	return readEntities[Series](ctx, ro, spanner.Statement{
+		SQL: "SELECT ID, Version FROM SERIES where Title = @title ORDER BY Version",
+		Params: map[string]any{
+			"title": title,
+		},
+	})
+}
+
 func (repo *SeriesRepository) querySessions(ctx context.Context, ro *spanner.ReadOnlyTransaction,
 	seriesList []*SeriesWithSession) error {
 	idToSeries := map[string]*SeriesWithSession{}