[milo] Refactor all html knowledge out of backends.

milo/buildsource/buildbucket/struct.go

 // Copyright 2017 The LUCI Authors. All rights reserved.
 // Use of this source code is governed under the Apache License, Version 2.0
 // that can be found in the LICENSE file.
 
 package buildbucket
 
 import (
         "encoding/json"
         "fmt"
         "time"
 
         bucketApi "github.com/luci/luci-go/common/api/buildbucket/buildbucket/v1"
         "github.com/luci/luci-go/milo/api/resp"
 )
 
 // buildEntry is a full buildbucket build along with its full resp rendering
 // at the time of modification.  This is a parent of a BuildSummary.
 type buildEntry struct {
         // key is formulated via <project ID>:<build ID>.  From PubSub, project ID
         // is determined via the topic name.
-        key string `gae:$id`
+        key string `gae:"$id"`
 
         // buildData is the json marshalled form of
         // a bucketApi.ApiCommonBuildMessage message.
-        buildbucketData []byte `gae:,noindex`
+        buildbucketData []byte `gae:",noindex"`
 
         // respBuild is the resp.MiloBuild representation of the build.
-        respBuild *resp.MiloBuild `gae:,noindex`
+        respBuild *resp.MiloBuild `gae:",noindex"`
 
         // project is the luci project name of the build.
         project string
 
         // created is the time when this build entry was first created.
         created time.Time
 
         // last is the time when this build entry was last modified.
         modified time.Time
 }
 
 // buildEntryKey returns the key for a build entry given a hostname and build ID.
 func buildEntryKey(host string, buildID int64) string {
         return fmt.Sprintf("%s:%d", host, buildID)
 }
 
 func (b *buildEntry) getBuild() (*bucketApi.ApiCommonBuildMessage, error) {
         msg := bucketApi.ApiCommonBuildMessage{}
         err := json.Unmarshal(b.buildbucketData, &msg)
         return &msg, err
 }