[milo] Refactor all html knowledge out of backends.

milo/frontend/main.go

-// Copyright 2015 The LUCI Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package frontend
-
-import (
-        "net/http"
-
-        "github.com/golang/protobuf/proto"
-        "golang.org/x/net/context"
-
-        "github.com/luci/luci-go/appengine/gaemiddleware"
-        "github.com/luci/luci-go/grpc/discovery"
-        "github.com/luci/luci-go/grpc/grpcmon"
-        "github.com/luci/luci-go/grpc/prpc"
-        milo "github.com/luci/luci-go/milo/api/proto"
-        "github.com/luci/luci-go/milo/buildsource/buildbot"
-        "github.com/luci/luci-go/milo/buildsource/buildbucket"
-        "github.com/luci/luci-go/milo/buildsource/rawpresentation"
-        "github.com/luci/luci-go/milo/buildsource/swarming"
-        "github.com/luci/luci-go/milo/common"
-        "github.com/luci/luci-go/milo/frontend/console"
-        "github.com/luci/luci-go/milo/rpc"
-        "github.com/luci/luci-go/server/router"
-)
-
-func emptyPrelude(c context.Context, methodName string, req proto.Message) (context.Context, error) {
-        return c, nil
-}
-
-// Run sets up all the routes and runs the server.
-func Run(templatePath string) {
-        // Register plain ol' http handlers.
-        r := router.New()
-        gaemiddleware.InstallHandlers(r)
-
-        basemw := common.Base(templatePath)
-        r.GET("/", basemw, frontpageHandler)
-
-        // Admin and cron endpoints.
-        r.GET("/admin/update", basemw.Extend(gaemiddleware.RequireCron), UpdateConfigHandler)
-        r.GET("/admin/configs", basemw, ConfigsHandler)
-
-        // Console
-        r.GET("/console/:project/:name", basemw, console.ConsoleHandler)
-        r.GET("/console/:project", basemw, console.Main)
-
-        // Swarming
-        r.GET(swarming.URLBase+"/:id/steps/*logname", basemw, swarming.LogHandler)
-        r.GET(swarming.URLBase+"/:id", basemw, swarming.BuildHandler)
-        // Backward-compatible URLs for Swarming:
-        r.GET("/swarming/prod/:id/steps/*logname", basemw, swarming.LogHandler)
-        r.GET("/swarming/prod/:id", basemw, swarming.BuildHandler)
-
-        // Buildbucket
-        r.GET("/buildbucket/:bucket/:builder", basemw, buildbucket.BuilderHandler)
-
-        // Buildbot
-        r.GET("/buildbot/:master/:builder/:build", basemw, buildbot.BuildHandler)
-        r.GET("/buildbot/:master/:builder/", basemw, buildbot.BuilderHandler)
-
-        // LogDog Milo Annotation Streams.
-        // This mimicks the `logdog://logdog_host/project/*path` url scheme seen on
-        // swarming tasks.
-        r.GET("/raw/build/:logdog_host/:project/*path", basemw, rawpresentation.BuildHandler)
-
-        // PubSub subscription endpoints.
-        r.POST("/_ah/push-handlers/buildbot", basemw, buildbot.PubSubHandler)
-        r.POST("/_ah/push-handlers/buildbucket", basemw, buildbucket.PubSubHandler)
-
-        // pRPC style endpoints.
-        api := prpc.Server{
-                UnaryServerInterceptor: grpcmon.NewUnaryServerInterceptor(nil),
-        }
-        milo.RegisterBuildbotServer(&api, &milo.DecoratedBuildbot{
-                Service: &buildbot.Service{},
-                Prelude: emptyPrelude,
-        })
-        milo.RegisterBuildInfoServer(&api, &milo.DecoratedBuildInfo{
-                Service: &rpc.BuildInfoService{},
-                Prelude: emptyPrelude,
-        })
-        discovery.Enable(&api)
-        api.InstallHandlers(r, gaemiddleware.BaseProd())
-
-        http.DefaultServeMux.Handle("/", r)
-}