lib/google/cloud/storage.rb in google-cloud-storage-1.15.0 vs lib/google/cloud/storage.rb in google-cloud-storage-1.16.0

@@ -73,20 +73,24 @@
       #   bucket = storage.bucket "my-bucket"
       #   file = bucket.file "path/to/my-file.ext"
       #
       def self.new project_id: nil, credentials: nil, scope: nil, retries: nil,
                    timeout: nil, project: nil, keyfile: nil
-        project_id ||= (project || default_project_id)
-        project_id = project_id.to_s # Always cast to a string
-        raise ArgumentError, "project_id is missing" if project_id.empty?
-
-        scope ||= configure.scope
-        retries ||= configure.retries
-        timeout ||= configure.timeout
+        project_id  ||= (project || default_project_id)
+        scope       ||= configure.scope
+        retries     ||= configure.retries
+        timeout     ||= configure.timeout
         credentials ||= (keyfile || default_credentials(scope: scope))
+
         unless credentials.is_a? Google::Auth::Credentials
           credentials = Storage::Credentials.new credentials, scope: scope
         end
+
+        if credentials.respond_to? :project_id
+          project_id ||= credentials.project_id
+        end
+        project_id = project_id.to_s # Always cast to a string
+        raise ArgumentError, "project_id is missing" if project_id.empty?
 
         Storage::Project.new(
           Storage::Service.new(
             project_id, credentials, retries: retries, timeout: timeout
           )