test-results: Add revisions handler

go/src/infra/appengine/test-results/frontend/handlers.go

 package frontend
 
 import (
         "html/template"
         "net/http"
         "time"
 
         "google.golang.org/appengine"
 
         "github.com/luci/luci-go/appengine/gaemiddleware"
         "github.com/luci/luci-go/server/router"
         "github.com/luci/luci-go/server/templates"
 )
 
 func init() {
         r := router.New()
         baseMW := base()
 
         r.GET("/testfile", baseMW, GetHandler)
         r.GET("/testfile/", baseMW, GetHandler)
 
+        r.GET("/revision_range", baseMW, revisionHandler)
+
         http.DefaultServeMux.Handle("/", r)
 }
 
 // base returns the root middleware chain.
 func base() router.MiddlewareChain {
         templateBundle := &templates.Bundle{
                 Loader:    templates.FileSystemLoader("templates"),
                 DebugMode: appengine.IsDevAppServer(),
                 FuncMap: template.FuncMap{
                         "timeParams": func(t time.Time) string {
                                 return t.Format(paramsTimeFormat)
                         },
                         "timeJS": func(t time.Time) int64 {
                                 return t.Unix() * 1000
                         },
                 },
         }
 
         return gaemiddleware.BaseProd().Extend(
                 templates.WithTemplates(templateBundle),
         )
 }