Milo: Add machine pool info for buildbot builder view.

milo/appengine/buildbot/build.go

 // Copyright 2016 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 buildbot
 
 import (
         "encoding/json"
         "errors"
         "fmt"
@@ skipping 128 matching lines @@
         if b.Currentstep != nil {
                 status = resp.Running
         } else {
                 status = result2Status(b.Results)
         }
 
         // Timing info
         started, ended, duration := parseTimes(nil, b.Times)
 
         // Link to bot and original build.
-        server := "build.chromium.org/p"
-        if b.Internal {
-                server = "uberchromegw.corp.google.com/i"
-        }
-        bot := &resp.Link{
-                Label: b.Slave,
-                URL:   fmt.Sprintf("https://%s/%s/buildslaves/%s", server, b.Master, b.Slave),
-        }
         host := "build.chromium.org/p"
         if b.Internal {
                 host = "uberchromegw.corp.google.com/i"
         }
+        bot := &resp.Link{
+                Label: b.Slave,
+                URL:   fmt.Sprintf("https://%s/%s/buildslaves/%s", host, b.Master, b.Slave),
+        }
         source := &resp.Link{
                 Label: fmt.Sprintf("%s/%s/%d", b.Master, b.Buildername, b.Number),
                 URL: fmt.Sprintf(
                         "https://%s/%s/builders/%s/builds/%d",
                         host, b.Master, b.Buildername, b.Number),
         }
 
         // The link to the builder page.
         parent := &resp.Link{
                 Label: b.Buildername,
@@ skipping 472 matching lines @@
         var newAliases map[string][]*buildbotLinkAlias
         if l := remainingAliases.Len(); l > 0 {
                 newAliases = make(map[string][]*buildbotLinkAlias, l)
                 remainingAliases.Iter(func(v string) bool {
                         newAliases[v] = s.Aliases[v]
                         return true
                 })
         }
         s.Aliases = newAliases
 }