swarmbucket: non-string properties

appengine/cr-buildbucket/proto/project_config.proto

 // Copyright 2015 The Swarming Authors. All rights reserved.
 // Use of this source code is governed by the Apache v2.0 license that can be
 // found in the LICENSE file.
 
 // Schemas for project configs.
 
 syntax = "proto2";
 
 package buildbucket;
 
@@ skipping 19 matching lines @@
 
 // Configuration of buildbucket-swarming integration for one bucket.
 message Swarming {
   message Recipe {
     // Repository URL of the recipe package.
     optional string repository = 1;
     // Name of the recipe to run.
     optional string name = 2;
     // colon-separated build properties to set.
     // A property can be overriden by "properties" build parameter.
+    //
+    // Use this field for string properties and use properties_j for other
+    // types.
     repeated string properties = 3;
+    // Same as properties, but the value must valid JSON. For example

[Vadim Sh., 2016/06/28 00:10:35]

is it allowed to have "a:{\"b\":\"c\"}"?

[nodir, 2016/06/28 00:42:38]

yes, not prohibited, but not encouraged either (by making it inconvenient)

+    //   properties_j: "a:1"
+    // means property a is a number 1, not string "1".
+    //
+    // Fields properties and properties_j can be used together, but cannot both
+    // specify values for same property.
+    repeated string properties_j = 4;
   }
 
   message Builder {
     // Name of the builder. Will be propagated to "builder" build tag and
     // "buildername" recipe property.
     optional string name = 1;
     // Builder category. Will be used for visual grouping, for example in Code Review.
     optional string category = 6;
     // Will be become to swarming task tags.
     // Each tag will end up in "swarming_tag" buildbucket tag, for example
@@ skipping 43 matching lines @@
   repeated Acl acls = 2;
   // Buildbucket-swarming integration.
   optional Swarming swarming = 3;
 }
 
 // Schema of buildbucket.cfg file, a project config.
 message BuildbucketCfg {
   // All buckets defined for this project.
   repeated Bucket buckets = 1;
 }