Milo: Add machine pool info for buildbot builder view.

milo/appengine/common/funcs.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 common
 
 import (
         "bytes"
         "fmt"
         "html/template"
@@ skipping 13 matching lines @@
         "linkify":        linkify,
         "linkifySet":     linkifySet,
         "obfuscateEmail": obfuscateEmail,
         "localTime":      localTime,
         "shortHash":      shortHash,
         "startswith":     strings.HasPrefix,
         "sub":            sub,
         "consoleHeader":  consoleHeader,
         "pagedURL":       pagedURL,
         "formatTime":     formatTime,
+        "percent":        percent,
 }
 
 // localTime returns a <span> element with t in human format
 // that will be converted to local timezone in the browser.
 // Recommended usage: {{ .Date | localTime "N/A" }}
 func localTime(ifZero string, t time.Time) template.HTML {
         if t.IsZero() {
                 return template.HTML(template.HTMLEscapeString(ifZero))
         }
         milliseconds := t.UnixNano() / 1e6
@@ skipping 194 matching lines @@
         case limit < 0:
                 values.Del("limit")
         case limit > 0:
                 values.Set("limit", fmt.Sprintf("%d", limit))
         }
         result := *r.URL
         result.RawQuery = values.Encode()
         return result.String()
 }
 
+// percent divides one number by a divisor and returns the percentage in string form.
+func percent(numerator, divisor int) string {
+        p := float64(numerator) * 100.0 / float64(divisor)
+        return fmt.Sprintf("%.1f", p)
+}
+
 func init() {
         linkifySetTemplate = template.Must(
                 template.New("linkifySet").
                         Funcs(template.FuncMap{
                                 "linkify": linkify,
                         }).Parse(
                         `{{ range $i, $link := . }}` +
                                 `{{ if gt $i 0 }} {{ end }}` +
                                 `{{ $link | linkify}}` +
                                 `{{ end }}`))
 
         linkifyTemplate = template.Must(
                 template.New("linkify").
                         Parse(
                                 `<a href="{{.URL}}">` +
                                         `{{if .Img}}<img src="{{.Img}}"{{if .Alt}} alt="{{.Alt}}"{{end}}>` +
                                         `{{else if .Alias}}[{{.Label}}]` +
                                         `{{else}}{{.Label}}{{end}}` +
                                         `</a>`))
 }