Capistrano 3 with Git Submodules

git.cap

# Save this file as lib/capistrano/tasks/git.cap

namespace :git do
  desc 'Copy repo to releases'
  task create_release: :'git:update' do
    on roles(:all) do
      with fetch(:git_environmental_variables) do
        within repo_path do
          execute :git, :clone, '-b', fetch(:branch), '--recursive', '.', release_path
        end
      end
    end
  end
end

I cannot get this to work on Cap V3.1.0

It's failing when trying to symlink the release:

Tasks: TOP => git:create_release
(See full trace by running task with --trace)

Anyone have this problem?

I get this to work on Cap v3.2

The config worked for me on Capistrano v.3.2.1 after a few tweaks:

# Overwrite the 'deploy:updating' task.
Rake::Task["deploy:updating"].clear_actions
namespace :deploy do

  desc 'Copy repo to releases, along with submodules'
  task updating: :'git:update' do
    on roles(:all) do
      with fetch(:git_environmental_variables) do
        within repo_path do
          # We'll be using 'git clone' instead of 'git archive' (what Capistrano uses), since the latter doesn't fetch submodules.
          # Use --recursive to fetch submodules as well.
          execute :git, :clone, '-b', fetch(:branch), '--recursive', '.', release_path
          # Delete .git* files. We don't need them, and they can be a security threat.
          execute "find #{release_path} \\( -name '.git' -o -name '.gitignore' -o -name '.gitmodules' \\) -exec rm -rf {} \\; > /dev/null 2>&1", raise_on_non_zero_exit: false
        end
      end
    end
  end

end

I added this git.cap and it worked like a charm, however I then had to add
after "deploy", "deploy:restart"
As deploy:restart stopped being invoked by default after git.cap was introduced
Did I miss something?

@liviucmg thanks i added your script directly in my deploy.rb and it works perfectly !

check out this gem: https://github.com/ekho/capistrano-git-submodule-strategy

Thank you. After deployed I found I 'cd' to the directory of submodule and found that 'git branch' point to no branch. So I have to add another task to force it checkout to master branch. Any ideas?

 desc 'Checkout master'
  task :checkout_master do
      on roles(:app) do |host|
          within current_path do
              execute "cd #{app_path}/current/public/pages && git checkout master && cd ../../"
          end
      end
  end

I got NameError: uninitialized constant Capistrano::Git in Capistrano 3.6.0