Task deploy:migrate exists with SystemStackError (version 1.6.0)

[Flauschbaellchen]

Steps to reproduce

Updating to capistrano-rails 1.6.0.

Expected behavior

Task deploy:migrate should run successfully.

Actual behavior

Task deploy:migrate runs into a recursive loop, exits with "stack level too deep":

[21:23:44] % cap staging deploy:migrate
rvm 1.29.8 (latest) by Michal Papis, Piotr Kuczynski, Wayne E. Seguin [https://rvm.io]
ruby-2.6.6
ruby 2.6.6p146 (2020-03-31 revision 67876) [x86_64-linux]
00:00 deploy:migrate
      [deploy:migrate] Run `rake db:migrate`
#<Thread:0x000055a96b80d2b0@/usr/local/rvm/gems/ruby-2.6.6/gems/sshkit-1.21.0/lib/sshkit/runners/parallel.rb:10 run> terminated with exception (report_on_exception is true):
Traceback (most recent call last):
        9143: from /usr/local/rvm/gems/ruby-2.6.6/gems/sshkit-1.21.0/lib/sshkit/runners/parallel.rb:12:in `block (2 levels) in execute'
        9142: from /usr/local/rvm/gems/ruby-2.6.6/gems/sshkit-1.21.0/lib/sshkit/backends/abstract.rb:31:in `run'
        9141: from /usr/local/rvm/gems/ruby-2.6.6/gems/sshkit-1.21.0/lib/sshkit/backends/abstract.rb:31:in `instance_exec'
        9140: from /usr/local/rvm/gems/ruby-2.6.6/gems/capistrano-rails-1.6.0/lib/capistrano/tasks/migrations.rake:23:in `block (3 levels) in <top (required)>'
        9139: from /usr/local/rvm/gems/ruby-2.6.6/gems/sshkit-1.21.0/lib/sshkit/backends/abstract.rb:92:in `within'
        9138: from /usr/local/rvm/gems/ruby-2.6.6/gems/capistrano-rails-1.6.0/lib/capistrano/tasks/migrations.rake:24:in `block (4 levels) in <top (required)>'
        9137: from /usr/local/rvm/gems/ruby-2.6.6/gems/sshkit-1.21.0/lib/sshkit/backends/abstract.rb:100:in `with'
        9136: from /usr/local/rvm/gems/ruby-2.6.6/gems/capistrano-rails-1.6.0/lib/capistrano/tasks/migrations.rake:25:in `block (5 levels) in <top (required)>'
         ... 9131 levels...
           4: from /usr/local/rvm/gems/ruby-2.6.6/gems/capistrano-rails-1.6.0/lib/capistrano/tasks/migrations.rake:39:in `block (3 levels) in <top (required)>'
           3: from /usr/local/rvm/rubies/ruby-2.6.6/lib/ruby/2.6.0/forwardable.rb:230:in `fetch'
           2: from /usr/local/rvm/rubies/ruby-2.6.6/lib/ruby/2.6.0/forwardable.rb:230:in `fetch'
           1: from /usr/local/rvm/rubies/ruby-2.6.6/lib/ruby/2.6.0/delegate.rb:83:in `method_missing'
/usr/local/rvm/gems/ruby-2.6.6/gems/capistrano-3.14.1/lib/capistrano/configuration/variables.rb:46:in `fetch': stack level too deep (SystemStackError)
#<Thread:0x000055a96b7f48c8@/usr/local/rvm/gems/ruby-2.6.6/gems/sshkit-1.21.0/lib/sshkit/runners/parallel.rb:10 run> terminated with exception (report_on_exception is true):
Traceback (most recent call last):
        9143: from /usr/local/rvm/gems/ruby-2.6.6/gems/sshkit-1.21.0/lib/sshkit/runners/parallel.rb:12:in `block (2 levels) in execute'
        9142: from /usr/local/rvm/gems/ruby-2.6.6/gems/sshkit-1.21.0/lib/sshkit/backends/abstract.rb:31:in `run'
        9141: from /usr/local/rvm/gems/ruby-2.6.6/gems/sshkit-1.21.0/lib/sshkit/backends/abstract.rb:31:in `instance_exec'
        9140: from /usr/local/rvm/gems/ruby-2.6.6/gems/capistrano-rails-1.6.0/lib/capistrano/tasks/migrations.rake:23:in `block (3 levels) in <top (required)>'
        9139: from /usr/local/rvm/gems/ruby-2.6.6/gems/sshkit-1.21.0/lib/sshkit/backends/abstract.rb:92:in `within'
        9138: from /usr/local/rvm/gems/ruby-2.6.6/gems/capistrano-rails-1.6.0/lib/capistrano/tasks/migrations.rake:24:in `block (4 levels) in <top (required)>'
        9137: from /usr/local/rvm/gems/ruby-2.6.6/gems/sshkit-1.21.0/lib/sshkit/backends/abstract.rb:100:in `with'
        9136: from /usr/local/rvm/gems/ruby-2.6.6/gems/capistrano-rails-1.6.0/lib/capistrano/tasks/migrations.rake:25:in `block (5 levels) in <top (required)>'
        9135: from /usr/local/rvm/rubies/ruby-2.6.6/lib/ruby/2.6.0/forwardable.rb:230:in `fetch'
        9134: from /usr/local/rvm/rubies/ruby-2.6.6/lib/ruby/2.6.0/forwardable.rb:230:in `fetch'
        9133: from /usr/local/rvm/rubies/ruby-2.6.6/lib/ruby/2.6.0/delegate.rb:83:in `method_missing'
        9132: from /usr/local/rvm/gems/ruby-2.6.6/gems/capistrano-3.14.1/lib/capistrano/configuration/variables.rb:47:in `fetch'
        9131: from /usr/local/rvm/gems/ruby-2.6.6/gems/capistrano-3.14.1/lib/capistrano/configuration/variables.rb:54:in `peek'
        9130: from /usr/local/rvm/gems/ruby-2.6.6/gems/capistrano-rails-1.6.0/lib/capistrano/tasks/migrations.rake:39:in `block (3 levels) in <top (required)>'
...
...
           3: from /usr/local/rvm/rubies/ruby-2.6.6/lib/ruby/2.6.0/forwardable.rb:230:in `fetch'
           2: from /usr/local/rvm/rubies/ruby-2.6.6/lib/ruby/2.6.0/forwardable.rb:230:in `fetch'
           1: from /usr/local/rvm/rubies/ruby-2.6.6/lib/ruby/2.6.0/delegate.rb:83:in `method_missing'
/usr/local/rvm/gems/ruby-2.6.6/gems/capistrano-3.14.1/lib/capistrano/configuration/variables.rb:46:in `fetch': stack level too deep (SystemStackError)
(Backtrace restricted to imported tasks)
cap aborted!
SystemStackError: stack level too deep

System configuration

Capistrano gems:

• capistrano (3.14.1)
• capistrano-bundler (1.6.0)
• capistrano-rails (1.6.0)
• capistrano-rvm (0.1.2)
• capistrano-sidekiq (1.0.3)
• capistrano3-puma (4.0.0)

[mattbrictson]

@the-undefined this seems to be related to your changes in #242. Can you help?

[mattbrictson]

@Flauschbaellchen thanks for the detailed report. I'll try to get this sorted ASAP.

[Eric-Guo]

Seems add set :migration_command, 'db:migrate' at config/deploy.rb is the quickly fix.

[mattbrictson]

Alrighty I will get that fix in shortly. Thanks!

[mattbrictson]

I've released 1.6.1 with a fix. Can you verify it works?

[Eric-Guo]

it works at v1.6.1 without add extra one line code now, nice!

[the-undefined]

Sorry I missed this! I forgot to test without the override in, which I could have done on a different app now I think about it 🤦

Thank you both for reporting and turning around a fix super quickly!