Milo: Print raw json for buildbot build properties

milo/appengine/settings/funcs.go

Index: milo/appengine/settings/funcs.go
diff --git a/milo/appengine/settings/funcs.go b/milo/appengine/settings/funcs.go
index 822456043aa22f7735db6d43164d84c686fd91a6..e9d21e794779ea201e4bdf426a5d01c91fa93cfa 100644
--- a/milo/appengine/settings/funcs.go
+++ b/milo/appengine/settings/funcs.go
@@ -6,6 +6,7 @@ package settings
 
 import (
 	"bytes"
+	"encoding/json"
 	"fmt"
 	"html/template"
 	"strings"
@@ -27,6 +28,7 @@ var funcMap = template.FuncMap{
 	"startswith":     strings.HasPrefix,
 	"sub":            sub,
 	"consoleHeader":  consoleHeader,
+	"formatJson":     formatJson,

[nodir, 2017/03/24 06:05:40]

s/formatJson/formatJSON/g

 }
 
 // localTime returns a <span> element with t in human format
@@ -186,6 +188,30 @@ func shortHash(s string) string {
 	return s
 }
 
+// If the string s is a JSON map, then pretty print it.
+func formatJson(s string) template.HTML {

[nodir, 2017/03/24 06:05:40]

formatJSON

In Go acronyms are written all caps

+	var o interface{}
+	err := json.Unmarshal([]byte(s), &o)
+	if err != nil {
+		return template.HTML(template.HTMLEscapeString(s))
+	}
+	switch t := o.(type) {
+	case string:
+		return template.HTML(template.HTMLEscapeString(t))
+	case map[string]interface{}:
+		s, err := json.MarshalIndent(t, "", "  ")
+		if err == nil {
+			es := strings.Split(string(s), "\n")
+			var result string
+			for _, line := range es {
+				result += strings.Replace(template.HTMLEscapeString(line), " ", "&nbsp;", -1) + "<br>"
+			}
+			return template.HTML("<div class=\"left\">" + result + "</span>")
+		}
+	}
+	return template.HTML(template.HTMLEscapeString(s))
+}
+
 func init() {
 	linkifyTemplate = template.Must(
 		template.New("linkify").