capistrano 後 可以寫入 git 資訊

config/deploy.rb

namespace :deploy do
  after :finishing, :git_ionfo do
    on roles(:all) do
      version = %x(git log -1 --pretty='format:%H')
      execute "echo '#{version.strip}' > #{release_path}/.git_version"

      tag = %x(git describe --tags --always --long --dirty)
      execute "echo '#{tag.strip}' > #{release_path}/.git_tag"

      branch = %x(git rev-parse --abbrev-ref HEAD)
      execute "echo '#{branch.strip}' > #{release_path}/.git_branch"
    end
  end 
end