Milo: Prefetch logs that are failures

milo/api/resp/build.go

 // Copyright 2015 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.
 
 //go:generate stringer -type=Status,ComponentType,Verbosity
 
 package resp
 
 import (
         "encoding/json"
@@ skipping 170 matching lines @@
 // Verbosity can be tagged onto a BuildComponent to indicate whether it should
 // be hidden or annuciated.
 type Verbosity int
 
 const (
         // Normal items are displayed as usual.  This is the default.
         Normal Verbosity = iota
 
         // Hidden items are by default not displayed.
         Hidden
+
+        // Interesting items are a signal that they should be annuciated, or
+        // pre-fetched.
+        Interesting
 )
 
 // BuildComponent represents a single Step, subsetup, attempt, or recipe.
 type BuildComponent struct {
         // The parent of this component.  For buildbot and swarmbucket builds, this
         // refers to the builder.  For DM, this refers to whatever triggered the Quest.
         ParentLabel *Link
 
         // The main label for the component.
         Label string
@@ skipping 71 matching lines @@
 
         // An icon for the link.  Not compatible with label.  Rendered as <img>
         Img string
 
         // The destination for the link, stuck in a <a href> tag.
         URL string
 
         // Alt text for the image, only supported with img.
         Alt string
 }