fix: proper fallback option handling (#684)

* changes without context

        autosynth cannot find the source of changes triggered by earlier changes in this
        repository, or by version upgrades to tools such as linters.

* chore: set Ruby namespace in proto options

PiperOrigin-RevId: 316124477

Source-Author: Google APIs <noreply@google.com>
Source-Date: Fri Jun 12 10:06:09 2020 -0700
Source-Repo: googleapis/googleapis
Source-Sha: c829fa0bfa725adaf20d82e86cbc1220e3ffd784
Source-Link: googleapis/googleapis@c829fa0

protos/google/datastore/v1/datastore.proto

@@ -28,6 +28,7 @@ option java_multiple_files = true;
 option java_outer_classname = "DatastoreProto";
 option java_package = "com.google.datastore.v1";
 option php_namespace = "Google\\Cloud\\Datastore\\V1";
+option ruby_package = "Google::Cloud::Datastore::V1";
 
 // Each RPC normalizes the partition IDs of the keys in its input entities,
 // and always returns entities with keys with normalized partition IDs.

protos/google/datastore/v1/entity.proto

@@ -27,6 +27,7 @@ option java_multiple_files = true;
 option java_outer_classname = "EntityProto";
 option java_package = "com.google.datastore.v1";
 option php_namespace = "Google\\Cloud\\Datastore\\V1";
+option ruby_package = "Google::Cloud::Datastore::V1";
 
 // A partition ID identifies a grouping of entities. The grouping is always
 // by project and namespace, however the namespace ID may be empty.

protos/google/datastore/v1/query.proto

@@ -27,6 +27,7 @@ option java_multiple_files = true;
 option java_outer_classname = "QueryProto";
 option java_package = "com.google.datastore.v1";
 option php_namespace = "Google\\Cloud\\Datastore\\V1";
+option ruby_package = "Google::Cloud::Datastore::V1";
 
 // The result of fetching an entity from Datastore.
 message EntityResult {

protos/protos.json

@@ -11,7 +11,8 @@
                 "java_multiple_files": true,
                 "java_outer_classname": "QueryProto",
                 "java_package": "com.google.datastore.v1",
-                "php_namespace": "Google\\Cloud\\Datastore\\V1"
+                "php_namespace": "Google\\Cloud\\Datastore\\V1",
+                "ruby_package": "Google::Cloud::Datastore::V1"
               },
               "nested": {
                 "Datastore": {

src/v1/datastore_client.ts

@@ -104,14 +104,11 @@ export class DatastoreClient {
     // const showcaseClient = new showcaseClient({ projectId, customConfig });
     opts.clientConfig = opts.clientConfig || {};
 
-    const isBrowser = typeof window !== 'undefined';
-    if (isBrowser) {
-      opts.fallback = true;
-    }
-    // If we are in browser, we are already using fallback because of the
-    // "browser" field in package.json.
-    // But if we were explicitly requested to use fallback, let's do it now.
-    this._gaxModule = !isBrowser && opts.fallback ? gax.fallback : gax;
+    // If we're running in browser, it's OK to omit `fallback` since
+    // google-gax has `browser` field in its `package.json`.
+    // For Electron (which does not respect `browser` field),
+    // pass `{fallback: true}` to the DatastoreClient constructor.
+    this._gaxModule = opts.fallback ? gax.fallback : gax;
 
     // Create a `gaxGrpc` object, with any grpc-specific options
     // sent to the client.

synth.metadata

@@ -4,15 +4,15 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/nodejs-datastore.git",
-        "sha": "d90b7331a96a2cca5f8bc51281b4e22648b40007"
+        "sha": "c60fe437c8e3ce1bdebb191b5623b099bf43dc58"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "a3a0bf0f6291d69f2ff3df7fcd63d28ee20ac727",
-        "internalRef": "310060413"
+        "sha": "c829fa0bfa725adaf20d82e86cbc1220e3ffd784",
+        "internalRef": "316124477"
       }
     },
     {